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Awad M, Ouda O, El-Refy A, El-Feky FA, Mosa KA, Helmy M. FN-Identify: Novel Restriction Enzymes-Based Method for Bacterial Identification in Absence of Genome Sequencing. Adv Bioinformatics 2015; 2015:303605. [PMID: 26880910 PMCID: PMC4735980 DOI: 10.1155/2015/303605] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/25/2015] [Accepted: 11/29/2015] [Indexed: 12/15/2022] Open
Abstract
Sequencing and restriction analysis of genes like 16S rRNA and HSP60 are intensively used for molecular identification in the microbial communities. With aid of the rapid progress in bioinformatics, genome sequencing became the method of choice for bacterial identification. However, the genome sequencing technology is still out of reach in the developing countries. In this paper, we propose FN-Identify, a sequencing-free method for bacterial identification. FN-Identify exploits the gene sequences data available in GenBank and other databases and the two algorithms that we developed, CreateScheme and GeneIdentify, to create a restriction enzyme-based identification scheme. FN-Identify was tested using three different and diverse bacterial populations (members of Lactobacillus, Pseudomonas, and Mycobacterium groups) in an in silico analysis using restriction enzymes and sequences of 16S rRNA gene. The analysis of the restriction maps of the members of three groups using the fragment numbers information only or along with fragments sizes successfully identified all of the members of the three groups using a minimum of four and maximum of eight restriction enzymes. Our results demonstrate the utility and accuracy of FN-Identify method and its two algorithms as an alternative method that uses the standard microbiology laboratories techniques when the genome sequencing is not available.
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Affiliation(s)
- Mohamed Awad
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Osama Ouda
- Department of Information Technology, Faculty of Computer and Information Sciences, Mansoura University, Mansoura 35516, Egypt
| | - Ali El-Refy
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Fawzy A. El-Feky
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Kareem A. Mosa
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
- Department of Applied Biology, College of Sciences, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Mohamed Helmy
- Donnelly Centre for Cellular and Biomedical Research, University of Toronto, Toronto, ON, Canada M5S 3E1
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Loenen WAM, Dryden DTF, Raleigh EA, Wilson GG. Type I restriction enzymes and their relatives. Nucleic Acids Res 2014; 42:20-44. [PMID: 24068554 PMCID: PMC3874165 DOI: 10.1093/nar/gkt847] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 08/26/2013] [Accepted: 08/29/2013] [Indexed: 12/24/2022] Open
Abstract
Type I restriction enzymes (REases) are large pentameric proteins with separate restriction (R), methylation (M) and DNA sequence-recognition (S) subunits. They were the first REases to be discovered and purified, but unlike the enormously useful Type II REases, they have yet to find a place in the enzymatic toolbox of molecular biologists. Type I enzymes have been difficult to characterize, but this is changing as genome analysis reveals their genes, and methylome analysis reveals their recognition sequences. Several Type I REases have been studied in detail and what has been learned about them invites greater attention. In this article, we discuss aspects of the biochemistry, biology and regulation of Type I REases, and of the mechanisms that bacteriophages and plasmids have evolved to evade them. Type I REases have a remarkable ability to change sequence specificity by domain shuffling and rearrangements. We summarize the classic experiments and observations that led to this discovery, and we discuss how this ability depends on the modular organizations of the enzymes and of their S subunits. Finally, we describe examples of Type II restriction-modification systems that have features in common with Type I enzymes, with emphasis on the varied Type IIG enzymes.
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Affiliation(s)
- Wil A. M. Loenen
- Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands, EastChem School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9, 3JJ, Scotland, UK and New England Biolabs Inc., 240 County Road Ipswich, MA 01938-2723, USA
| | - David T. F. Dryden
- Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands, EastChem School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9, 3JJ, Scotland, UK and New England Biolabs Inc., 240 County Road Ipswich, MA 01938-2723, USA
| | - Elisabeth A. Raleigh
- Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands, EastChem School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9, 3JJ, Scotland, UK and New England Biolabs Inc., 240 County Road Ipswich, MA 01938-2723, USA
| | - Geoffrey G. Wilson
- Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands, EastChem School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9, 3JJ, Scotland, UK and New England Biolabs Inc., 240 County Road Ipswich, MA 01938-2723, USA
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Lambotte C. Biochemical polymorphism in man -- its relation to disease. ANIMAL BLOOD GROUPS AND BIOCHEMICAL GENETICS 2009; 12:149-66. [PMID: 6459044 DOI: 10.1111/j.1365-2052.1981.tb01545.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Lau RH, Visentin LP, Martin SM, Hofman JD, Doolittle W. Site-specific restriction endonuclease from the filamentous cyanobacteriumNostocsp. MAC PCC 8009. FEBS Lett 2001. [DOI: 10.1016/0014-5793(85)80206-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Batsford SR, Mihatsch MJ, Rawiel M, Schmiedeke TM, Vogt A. Surface charge distribution is a determinant of antigen deposition in the renal glomerulus: studies employing 'charge-hybrid' molecules. Clin Exp Immunol 1991; 86:471-7. [PMID: 1747955 PMCID: PMC1554210 DOI: 10.1111/j.1365-2249.1991.tb02955.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The deposition of antigens and immune complexes (IC) in the renal glomerulus is charge-dependent. The demonstration that molecules of net anionic charge, but with discrete positively charged regions, exhibit affinity for the glomerular basement membrane (GBM) extends this concept. Charge hybrid (polar) molecules were constructed by covalently coupling small polycations (lysozyme or linear poly-L-lysine chains with a mean of 17 and 20 residues) to larger polyanions (ovalbumin or human serum albumin (HSA]. Although the products were of overall net anionic charge they still bound to glomerular structures. Immunofluorescence studies performed after i.v. injection of the samples into rats revealed that HSA:poly-L-lysine had the highest affinity. Radioisotopic measurements showed uptake of HSA:poly-L-lysine to be a function of the number of lysine residues; binding of HSA:poly-L-lysine20 was 2.5 times higher than HSA:poly-L-lysine17 (P less than 0.01). Prior injection of a small competing polycation (polyethyleneimine 1200) reduced uptake of HSA:poly-L-lysine by 75%, indicating the charge-based nature of the interaction. HSA:poly-L-lysine20 alone was effectively eliminated from the glomeruli within 72 h. Administration of HSA:poly-L-lysine followed by anti-HSA antibody induced immune complex formation in the capillary wall, giving rise to a granular immunofluorescence pattern and discrete subendothelial and subepithelial deposits. Molecules with polar structure do occur naturally and may contribute to immune complex formation in glomerulonephritis.
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Affiliation(s)
- S R Batsford
- Department of Immunology, University of Freiburg, Germany
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Kessler C, Manta V. Specificity of restriction endonucleases and DNA modification methyltransferases a review (Edition 3). Gene 1990; 92:1-248. [PMID: 2172084 DOI: 10.1016/0378-1119(90)90486-b] [Citation(s) in RCA: 128] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The properties and sources of all known class-I, class-II and class-III restriction endonucleases (ENases) and DNA modification methyltransferases (MTases) are listed and newly subclassified according to their sequence specificity. In addition, the enzymes are distinguished in a novel manner according to sequence specificity, cleavage position and methylation sensitivity. Furthermore, new nomenclature rules are proposed for unambiguously defined enzyme names. In the various Tables, the enzymes are cross-indexed alphabetically according to their names (Table I), classified according to their recognition sequence homologies (Table II), and characterized within Table II by the cleavage and methylation positions, the number of recognition sites on the DNA of the bacteriophages lambda, phi X174, and M13mp7, the viruses Ad2 and SV40, the plasmids pBR322 and pBR328, and the microorganisms from which they originate. Other tabulated properties of the ENases include relaxed specificities (integrated within Table II), the structure of the generated fragment ends (Table III), interconversion of restriction sites (Table IV) and the sensitivity to different kinds of DNA methylation (Table V). Table VI shows the influence of class-II MTases on the activity of class-II ENases with at least partially overlapping recognition sequences. Table VII lists all class-II restriction endonucleases and MTases which are commercially available. The information given in Table V focuses on the influence of methylation of the recognition sequences on the activity of ENases. This information might be useful for the design of cloning experiments especially in Escherichia coli containing M.EcodamI and M.EcodcmI [H16, M21, U3] or for studying the level and distribution of site-specific methylation in cellular DNA, e.g., 5'- (M)CpG-3' in mammals, 5'-(M)CpNpG-3' in plants or 5'-GpA(M)pTpC-3' in enterobacteria [B29, E4, M30, V4, V13, W24]. In Table IV a cross index for the interconversion of two- and four-nt 5'-protruding ends into new recognition sequences is complied. This was obtained by the fill-in reaction with the Klenow (large) fragment of the E. coli DNA polymerase I (PolIk), or additional nuclease S1 treatment followed by ligation of the modified fragment termini [P3]. Interconversion of restriction sites generates novel cloning sites without the need of linkers. This should improve the flexibility of genetic engineering experiments [K56, P3].(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- C Kessler
- Boehringer Mannheim GmbH, Biochemical Research Center, Penzberg, F.R.G
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Morrish FM, Vasil IK. DNA Methylation and Embryogenic Competence in Leaves and Callus of Napiergrass (Pennisetum purpureum Schum.). PLANT PHYSIOLOGY 1989; 90:37-40. [PMID: 16666764 PMCID: PMC1061672 DOI: 10.1104/pp.90.1.37] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Quantitative and qualitative levels of DNA methylation were evaluated in leaves and callus of Pennisetum purpureum Schum. The level of methylation did not change during leaf differentiation or aging and similar levels of methylation were found in embryogenic and nonembryogenic callus.
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Affiliation(s)
- F M Morrish
- Department of Vegetable Crops, University of Florida, Gainesville, Florida 32611
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Haran TE, Shakked Z, Wang AH, Rich A. The crystal structure of d(CCCCGGGG): a new A-form variant with an extended backbone conformation. J Biomol Struct Dyn 1987; 5:199-217. [PMID: 3271472 DOI: 10.1080/07391102.1987.10506390] [Citation(s) in RCA: 93] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The crystal structure of d(CCCCGGGG) has been determined at a resolution of 2.25 A. The oligomers crystallize as A-DNA duplexes occupying crystallographic two-fold axes. The backbone conformation is, in general, similar to that observed in previously reported crystal structures of A-DNA fragments, except for the central linkage, where it adopts an extended structure resulting from all trans conformation at the P-O5'-C5'-C4' bonds. This type of conformation facilitates interstrand stacking between the guanines at the C-G site. The local helix twist at this step is very small (25 degrees) compared to an overall average of 33.5 degrees. The unique structure of the C-G base-pair step, namely the extended backbone and the distinct stacking geometry, may be an important feature in the recognition mechanism between double-stranded DNA molecules and restriction endonucleases such as Msp I, which cuts the sequence CCGG very specifically with a rate unaffected by neighboring base pairs.
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Affiliation(s)
- T E Haran
- Dept. of Structural Chemistry, Weizmann Institute of Science, Rehovot,Israel
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Wiatr CL, Witmer HJ. Selective protection of 5' ... GGCC ... 3' and 5' ... GCNGC ... 3' sequences by the hypermodified oxopyrimidine in Bacillus subtilis bacteriophage SP10 DNA. J Virol 1984; 52:47-54. [PMID: 6090709 PMCID: PMC254487 DOI: 10.1128/jvi.52.1.47-54.1984] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The DNA of Bacillus subtilis bacteriophage SP10 is partially resistant to cleavage and methylation in vitro by restriction enzyme R . BsuRI and its cognate methylase even though greater than 20 copies of the target sequence, 5' ... GGCC ... 3', are present on the phage genome. YThy, a hypermodified oxopyrimidine that replaces a fraction of the thymine residues in SP10 DNA, was responsible for this protection, since YThy-free DNA was no longer resistant. Sites that were normally resistant could nevertheless be cleaved or methylated in vitro if the salt concentration was reduced or dimethyl sulfoxide was added to the reaction buffer. Analysis of the termini produced by cleavage suggested that resistant sites occurred in the sequence 5' ... GGCC-YThy ... 3', whereas sensitive sites, of which there were only two per genome, occurred in the sequence 5' ... GGCCG ... 3'. These in vitro results provide an explanation for the in vivo resistance of SP10 to restriction-modification by B. subtilis R. They also suggest ways in which the presence of the atypical base YThy in regions that flank the target might upset critical DNA-enzyme interactions necessary to locate and recognize the specific site of cleavage or methylation. YThy also strongly protected 5' ... GCNGC ... 3' (R . Fnu4HI) sequences on SP10 DNA, but the biological relevance of this protection is unclear.
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10
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Hormonal regulation of the transformation phenotype in simian virus 40-transformed rat embryonic preadipose cell lines. Mol Cell Biol 1984. [PMID: 6325892 DOI: 10.1128/mcb.4.4.712] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The regulation of transformed phenotypes was studied in newly isolated preadipose cell lines which were established after infection with simian virus 40 tsA58 dl2009. The clonal cell lines isolated exhibited most of the characteristics typical of transformed cells. The transformants, however, were able to differentiate into adipocytes in the presence of low calf serum (0.5%) and a combination of several hormones, including hydrocortisone and insulin. Treatment with insulin alone stimulated the growth of these cells but did not induce lipid accumulation without added hydrocortisone. The effect of hydrocortisone was accompanied by a restoration of growth control in the transformants after they reached high cell density. The blot hybridization analysis of cellular DNAs digested by restriction enzymes revealed that simian virus 40 genomes were integrated at multiple separate sites at which a head-to-tail oligomeric insertion took place. Large T antigen was synthesized in growing cells but was regulated at high cell density when cells were committed to differentiate by glucocorticoids. These results suggest that the glucocorticoid hydrocortisone is capable of restoring growth regulation at high cell densities to simian virus 40-transformed preadipose cell lines.
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11
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Yasumoto S. Hormonal regulation of the transformation phenotype in simian virus 40-transformed rat embryonic preadipose cell lines. Mol Cell Biol 1984; 4:712-21. [PMID: 6325892 PMCID: PMC368787 DOI: 10.1128/mcb.4.4.712-721.1984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The regulation of transformed phenotypes was studied in newly isolated preadipose cell lines which were established after infection with simian virus 40 tsA58 dl2009. The clonal cell lines isolated exhibited most of the characteristics typical of transformed cells. The transformants, however, were able to differentiate into adipocytes in the presence of low calf serum (0.5%) and a combination of several hormones, including hydrocortisone and insulin. Treatment with insulin alone stimulated the growth of these cells but did not induce lipid accumulation without added hydrocortisone. The effect of hydrocortisone was accompanied by a restoration of growth control in the transformants after they reached high cell density. The blot hybridization analysis of cellular DNAs digested by restriction enzymes revealed that simian virus 40 genomes were integrated at multiple separate sites at which a head-to-tail oligomeric insertion took place. Large T antigen was synthesized in growing cells but was regulated at high cell density when cells were committed to differentiate by glucocorticoids. These results suggest that the glucocorticoid hydrocortisone is capable of restoring growth regulation at high cell densities to simian virus 40-transformed preadipose cell lines.
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13
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Barnes WM, Tuley E. DNA sequence changes of mutations in the histidine operon control region that decrease attenuation. J Mol Biol 1983; 165:443-59. [PMID: 6302291 DOI: 10.1016/s0022-2836(83)80212-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The DNA sequence changes of 18 (9 different) mutations in the control region of the histidine operon of Salmonella typhimurium are presented. All of these mutations increase the level of expression of the operon, presumably by decreasing transcription termination at the attenuator. Five of the mutations were previously isolated hisO mutations, and the other four were isolated here as His+ pseudorevertants of His- stop codon mutations in the leader peptide gene. Only two mutations, O1242 and O3154, directly affect the terminator stem of the leader RNA. One mutation, O1202, creates a strong new stem that would compete with the terminator stem. Most of the other mutations damage other RNA stems. Their effect can best be explained by, and they thus provide supporting evidence for, the prevailing model of attenuator regulation involving alternative, competing RNA stems in the leader RNA. Two mutations that do not appear to significantly affect an RNA stem directly, including a deletion of three of the seven consecutive histidine codons, are best explained as effects of a translating ribosome upon the RNA stem structures, even though the histidine codons are not translated in the pseudorevertants.
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Burger KJ, Schinzel R. Restriction endonuclease BglI as a tool for in vitro reconstruction and recombination of plasmid and bacteriophage genomes. MOLECULAR & GENERAL GENETICS : MGG 1983; 189:269-74. [PMID: 6304467 DOI: 10.1007/bf00337816] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The restriction endonuclease BglI produces different individual fragment ends from different cut sites. This property has allowed us to reconstruct efficiently several commonly used plasmid and bacteriophage genomes and a number of recombinant plasmids containing up to seven BglI restriction sites from their constituent BglI fragments. It is demonstrated that in vitro reconstitution from BglI fragments can be used to create, in a simple way, recombinant DNA molecules by recombining in vitro BglI fragments from different mutated or otherwise related genomes. Further applications of the method are discussed.
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Abstract
The E2a region of the Ad2 genome encodes the Ad2-specific DBP. An inverse correlation between the level of DNA methylation at the 5'-CC*GG-3' sites of the E2a region and the extent of expression of DBP has been demonstrated in Ad2-transformed hamster cell lines (Vardimon et al. 1980). Four different leaders are used in the transcription of the E2a region in cells productively infected with Ad2. The leader located at coordinate 75 on the viral genome is used early after infection and the other three leaders are used late after infection (Chow et al. 1979). The analysis of the integration patterns of the viral DNA in the Ad2-transformed cell lines has revealed that the early leader is deleted in the cell lines which do not express the DBP (Vardimon and Doerfler 1981). The late leader located at coordinate 72 on the viral genome is present. The region encoding that late leader has been subcloned, and the cytoplasmic RNA from the cell line which expresses the DBP has been analyzed. It has been shown that the late leader is used in transformed cells. Hence the absence of the early leader cannot be the immediate reason for the lack of expression of the DBP. Correlations between DNA methylation and the absence of gene expression may indicate that methylation regulates gene expression or that methylation is the consequence of lacking gene expression. In order to decide between these alternatives an in vitro system has been employed. The HindIII A fragment of the Ad2 DNA which encodes the DBP has been methylated in vitro by the HpaII DNA methyltransferase. Methylated or unmethylated HindIII A fragment has been microinjected into the nuclei of Xenopus laevis oocytes. Unmethylated HindIII A fragment has been found to be expressed as specific viral RNA, whereas no viral RNA can be found in oocytes microinjected with methylated HindIII A fragment. The possibility of a nonspecific inhibitory factor in the methylated DNA preparation has been ruled out by the simultaneous microinjection of sea urchin histone gene DNA together with the methylated HindIII A fragment. Histone genes are expressed, while the expression of the methylated viral gene is blocked. By using the single-strand-specific endonuclease S1 we have shown that in Xenopus laevis oocytes initiation of transcription of the E2a region starts exactly at the same site as in Ad2 productively infected cells. These results provide direct evidence for the notion that DNA methylation at specific sites is involved in the regulation of gene expression.
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Abstract
The nucleotide sequence of the DNA of the filamentous coliphage f1 has been determined. In agreement with earlier conclusions, the genome was found to comprise 6,407 nucleotides, 1 less than that of the related phage fd. Phage f1 DNA differs from that of phage M13 by 52 nucleotide changes, which lead to 5 amino acid substitutions in the corresponding proteins of the two phages, and from phage fd DNA by 186 nucleotide changes (including the single-nucleotide deletion), which lead to 12 amino acid differences between the proteins of phages f1 and fd. More than one-half of the nucleotide changes in each case are found in the sequence of 1,786 nucleotides comprising gene IV and the major intergenic region between gene IV and gene II. The sequence of this intergenic region (nucleotides 5501 to 6005) of phage f1 differs from the sequence reported by others through the inclusion of additional single nucleotides in eight positions and of a run of 13 nucleotides between positions 5885 and 5897, a point of uncertainty in the earlier published sequence. The differences between the sequence of bacteriophage f1 DNA now presented and a complete sequence for the DNA previously published by others are discussed, and the f1 DNA sequence is compared with those of bacteriophages M13 and fd.
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Adams J, Rothman ED. Estimation of phylogenetic relationships from DNA restriction patterns and selection of endonuclease cleavage sites. Proc Natl Acad Sci U S A 1982; 79:3560-4. [PMID: 6285352 PMCID: PMC346461 DOI: 10.1073/pnas.79.11.3560] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The distribution of cleavage sites and their related sequences have been analyzed for 54 restriction endonucleases in the genome of human mitochondrial DNA; in three papova viruses, BK, simian virus 40, and polyoma; and in three bacteriophages, phi X174, fd, and G4. The results show that the cleavage sites and related sequences for most of the restriction enzymes tested are distributed nonrandomly. These results (i) constitute prima facie evidence for the action of natural selection, either direct or indirect on the restriction sites, and (ii) suggest that estimates of phylogenetic relationship, based on a phenetic approach using restriction enzyme data, will be biased.
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Korba BE, Hays JB. Novel mutations of Escherichia coli that produce recombinogenic lesions in DNA. V. Recombinogenic plasmids from arl mutants of Escherichia coli are unusually sensitive to nuclease S1 and partially deficient in cytosine methylation at C-C-(A/T)-G-G sequences. J Mol Biol 1982; 157:213-35. [PMID: 6286977 DOI: 10.1016/0022-2836(82)90231-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Benchimol S, Lucko H, Becker A. A novel endonuclease specified by bacteriophage lambda. Purification and properties of the enzyme. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(18)34657-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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22
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Alves J, Pingoud A, Langowski J, Urbanke C, Maass G. Two identical subunits of the EcoRI restriction endonuclease Co-operate in the binding and cleavage of the palindromic substrate. EUROPEAN JOURNAL OF BIOCHEMISTRY 1982; 124:139-42. [PMID: 6282584 DOI: 10.1111/j.1432-1033.1982.tb05916.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The cleavage of radioactively labelled double-stranded d(G-G-A-A-T-T-C-C) was studied in single turnover experiments with substrate and enzyme both being in the micromolar range. The reaction rate was found to increase with enzyme concentration until a ratio of one tetrameric enzyme to two double-stranded substrates was reached, further increase of the enzyme concentration then leads to a sharp decline of the reaction rate. These findings are interpreted in the following manner. (a) Two subunits of the EcoRI endonuclease co-operate in binding and possibly also in cleaving the palindromic substrate. (b) The enzymatic action of the EcoRI endonuclease is inhibited by excess enzyme, possibly due to unspecific binding of the enzyme-substrate complex. The self-inhibition of EcoRI endonuclease has also been observed with macromolecular substrates.
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Mason PJ, Török I, Kiss I, Karch F, Udvardy A. Evolutionary implications of a complex pattern of DNA sequence homology extending far upstream of the hsp70 genes at loci 87A7 and 87C1 in Drosophila melanogaster. J Mol Biol 1982; 156:21-35. [PMID: 6808144 DOI: 10.1016/0022-2836(82)90456-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Udvardy A, Sümegi J, Tóth EC, Gausz J, Gyurkovics H, Schedl P, Ish-Horowicz D. Genomic organization and functional analysis of a deletion variant of the 87A7 heat shock locus of Drosophila melanogaster. J Mol Biol 1982; 155:267-80. [PMID: 6281448 DOI: 10.1016/0022-2836(82)90005-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Imanaka T, Fujii M, Aramori I, Aiba S. Transformation of Bacillus stearothermophilus with plasmid DNA and characterization of shuttle vector plasmids between Bacillus stearothermophilus and Bacillus subtilis. J Bacteriol 1982; 149:824-30. [PMID: 6277855 PMCID: PMC216468 DOI: 10.1128/jb.149.3.824-830.1982] [Citation(s) in RCA: 123] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A thermophilic bacterium Bacillus stearothermophilus IFO 12550 (ATCC 12980) was transformed with each of the following plasmids, pUB110 (kanamycin resistance, Kmr), pTB19 (Kmr and tetracycline resistance [Tcr]), and its derivative pTB90 (Kmr Tcr), by the protoplast procedure in the presence of polyethylene glycol at 48 degrees C. The transformation frequencies per regenerant for pUB110, pTB19, and pTB90 were 5.9 x 10(-3), 5.5 x 10(-3), and 2.0 x 10(-1), respectively. Among these plasmids, pTB90 was newly derived, and the restriction endonuclease cleavage map was constructed. When tetracycline (5 micrograms/ml) was added into the culture medium, the copy number of pTB90 in B. stearothermophilus was about fourfold higher than that when kanamycin (5 micrograms/ml) was added instead of tetracycline. Bacillus subtilis could also be transformed with the plasmids extracted from B. stearothermophilus and vice versa. Accordingly, pUB110, pTB19, and pTB90 served as shuttle vectors between B. stearothermophilus and B. subtilis. The requirements for replication of pTB19 in B. subtilis and B. stearothermophilus appear to be different, because some deletion plasmids (pTB51, pTB52, and pTB53) derived from pTB19 could replicate only in B. subtilis, whereas another deletion plasmid pTB92 could replicate solely in B. stearothermophilus. Plasmids pTB19 and pTB90 could be maintained and expressed in B. stearothermophilus up to 65 degrees C, whereas the expression of pUB110 in the same strain was up to 55 degrees C.
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Ilyin YV, Georgiev GP. The main types of organization of genetic material in eukaryotes. CRC CRITICAL REVIEWS IN BIOCHEMISTRY 1982; 12:237-87. [PMID: 6282534 DOI: 10.3109/10409238209108708] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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27
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Stephens MA. Partial purification and cleavage specificity of a site-specific endonuclease, SciNI, isolated from Spiroplasma citri. J Bacteriol 1982; 149:508-14. [PMID: 6276358 PMCID: PMC216535 DOI: 10.1128/jb.149.2.508-514.1982] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A site-specific endonuclease, SciNI, has been partially purified from the plant pathogen Spiroplasma citri. The enzyme recognizes the sequence 5'-G-C-G-C-3' and cleaves between the first G and C. 3'-C-G-C-G-5' SciNI is an isoschizomer of HhaI, but generates DNA fragments with 5' rather than 3' single-stranded protrusions.
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Janulaitis AA, Petrusite MA, Jaskelavicene BP, Krayev AS, Skryabin KG, Bayev AA. A new restriction endonuclease BcnI from Bacillus centrosporus RFL 1. FEBS Lett 1982; 137:178-80. [PMID: 6277689 DOI: 10.1016/0014-5793(82)80343-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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29
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Modrich P. Studies on sequence recognition by type II restriction and modification enzymes. CRC CRITICAL REVIEWS IN BIOCHEMISTRY 1982; 13:287-323. [PMID: 6293768 DOI: 10.3109/10409238209114231] [Citation(s) in RCA: 91] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Type II DNA restriction and modification systems are ideally suited for analysis of mechanisms by which proteins specifically recognize unique DNA sequences. Each system is comprised of a unique DNA recognition site and two enzymes, which in those cases examined in detail, are comprised of distinct polypeptide chains. Thus, not only are the DNA substrates extremely well defined, but each system affords the opportunity to compare distinct proteins which interact with a common DNA sequence. This review will focus only on those Type II systems which have been examined in sufficient molecular detail to permit some insight into modes of specific DNA-protein interaction.
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30
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Shows TB, Sakaguchi AY, Naylor SL. Mapping the human genome, cloned genes, DNA polymorphisms, and inherited disease. ADVANCES IN HUMAN GENETICS 1982; 12:341-452. [PMID: 6957143 DOI: 10.1007/978-1-4615-8315-8_5] [Citation(s) in RCA: 132] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Abstract
The DNA of higher eukaryotes contains one minor base, namely 5-methylcytosine. The distribution of this minor base between different species and different DNA fractions will be considered together with the actual sequences methylated. The properties of the enzyme responsible for DNA modification will be reviewed, particular note being paid to the efficiency of methylation of different DNA substrates. Various possible functions of the 5-methylcytosine in DNA will be considered and particular attention will be paid to the finding that specific modified bases present in DNA not undergoing transcription are absent in the same genes when these are being actively transcribed.
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33
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Goppelt M, Langowski J, Pingoud A, Haupt W, Urbanke C, Mayer H, Maass G. The effect of several nucleic acid binding drugs on the cleavage of d(GGAATTCC) and pBR 322 by the Eco RI restriction endonuclease. Nucleic Acids Res 1981; 9:6115-27. [PMID: 6273824 PMCID: PMC327588 DOI: 10.1093/nar/9.22.6115] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The endonucleolytic action of the EcoRI restriction enzyme on the double-stranded oligonucleotide d(GGAATTCC) and the supercoiled plasmid DNA pBR 233 is inhibited by actinomycin D, ethidium bromide, proflavin, distamycin A and netropsin. Half-maximal inhibition is observed at around 100 microM concentrations for the intercalating drugs, and around 0.1 to 1 microM concentrations for netropsin and distamycin A. The inhibitory activity of these drugs can be correlated with their affinity to the oligonucleotide and the plasmid DNA. Since at high concentrations of the drugs a complete inhibition is observed, it is concluded that the effect of the drugs on the stereochemistry of the EcoRI site is such that recognition is excluded.
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36
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Török I, Kondorosi A. Nucleotide sequence of the R.meliloti nitrogenase reductase (nifH) gene. Nucleic Acids Res 1981; 9:5711-23. [PMID: 6273806 PMCID: PMC327555 DOI: 10.1093/nar/9.21.5711] [Citation(s) in RCA: 83] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The nucleotide sequence of the structural gene (nifH) of nitrogenase reductase (Fe protein) from R.meliloti 41 with its flanking ends is reported. The amino acid sequence of nitrogenase reductase was deduced from the DNA sequence. The predicted R.meliloti nitrogenase reductase protein consists of 297 amino acid residues, has a molecular weight of 32,740 daltons and contains 5 cysteine residues. The codon usage in the nifH gene is presented. In the 5' flanking region, sequences resembling to consensus sequences of bacterial control regions were found. Comparison of the R.meliloti nifH nucleotide and amino acid sequences with those from different nitrogen-fixing organisms showed that the amino acid sequences are more conserved than the nucleotide sequences. This structural conservation of nitrogenase reductase may be related to its function and may explain the conservation of the nifH gene during evolution.
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Herrmann R, Wood WB. Assembly of bacteriophage T4 tail fibers: identification and characterization of the nonstructural protein gp57. MOLECULAR & GENERAL GENETICS : MGG 1981; 184:125-32. [PMID: 7038383 DOI: 10.1007/bf00271208] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Formation of both the tail fiber and the baseplate of bacteriophage T4 depends on the product of T4 gene 57. A single amber mutation in that gene causes loss of two T4-specific proteins. Their molecular weights are 18,000 and about 6,000, respectively, based on their electrophoretic mobilities in SDS-polyacrylamide gels. E. coli carrying a cloned T4 DNA fragment of about 700 basepairs, which directs the synthesis of the smaller protein only, specifically supports the growth of gene 57 amber mutants. We conclude that the small protein is a functional product of gene 57.
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Koncz C, Sümegi J, Udvardy A, Racsmány M, Dudits D. Cloning of mtDNA fragments homologous to mitochondrial S2 plasmid-like DNA in maize. ACTA ACUST UNITED AC 1981. [DOI: 10.1007/bf00268764] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Driscoll MC, Baird M, Bank A, Rachmilewitz EA. A new polymorphism in the human beta-globin gene useful in antenatal diagnosis. J Clin Invest 1981; 68:915-9. [PMID: 6270195 PMCID: PMC370878 DOI: 10.1172/jci110346] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A new polymorphism in the beta-globin is described, using the restriction enzyme Asu I. A radioactive probe specifically representing the large intervening sequence (IVS 2) of the beta-globin gene has been used to detect this polymorphism. Normally, a 0.8-kilobase fragment containing beta-IVS 2 is generated by Asu I; however, a 1.0-kilobase fragment is seen in association with 18% of beta A-genes, and 38% of beta-thalassemia genes in an Israeli population studied. By contrast, the Asu I polymorphism has rarely been seen in blacks examined to date. An additional Asu I change is seen the the delta-globin gene with a delta-IVS probe. The beta-Asu I polymorphism is shown to be useful in the antenatal diagnosis of beta-thalassemia.
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41
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Malcolm AD, Moffatt JR. Differential reactivities at restriction enzyme sites. BIOCHIMICA ET BIOPHYSICA ACTA 1981; 655:128-35. [PMID: 6269624 DOI: 10.1016/0005-2787(81)90002-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A method has been developed to measure the rates of digestion by restriction enzymes at individual sites. This involves a simple arithmetical treatment of the integrated areas from a densitometer scan of an ethidium bromide stained gel. We have used this method to study the digestion by HpaI, HincII and SalI of pBR322 and phi X174 DNA, and the effect of various DNA binding ligands. One of the two HpaI sites in phi X174 DNA is much more sensitive to inhibition by ligands such as netropsin, which display a preference for AT base pairs, than is the other site. Inspection of the sequences flanking the restriction sites shows that the former contains a much higher proportion of AT base-pairs than dose the latter. The opposite phenomenon is observed with the two HincII sites in pBR322. This illustrates the importance of neighbouring sequences in the interaction between restriction enzymes and their cleavage sites in DNA.
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42
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Fang R, Min Jou W, Huylebroeck D, Devos R, Fiers W. Complete structure of A/duck/Ukraine/63 influenza hemagglutinin gene: animal virus as progenitor of human H3 Hong Kong 1968 influenza hemagglutinin. Cell 1981; 25:315-23. [PMID: 6169439 DOI: 10.1016/0092-8674(81)90049-0] [Citation(s) in RCA: 127] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Behnke D, Gilmore MS, Ferretti JJ. Plasmid pGB301, a new multiple resistance streptococcal cloning vehicle and its use in cloning of a gentamicin/kanamycin resistance determinant. MOLECULAR & GENERAL GENETICS : MGG 1981; 182:414-21. [PMID: 6272061 DOI: 10.1007/bf00293929] [Citation(s) in RCA: 63] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Streptococcal plasmid pGB301 is an in vivo rear ranged plasmid with interesting properties and potential for the molecular cloning of genes in streptococci. Transformation of S. sanguis (Challis) with the group B streptococcal plasmid pIP501 (29.7 kb) gave rise to the deletion derivative pGB301 (9.8 kb, copy number 10) which retained the multiple resistance phenotype of its ancestor (inducible MLS-resistance, chloramphenicol resistance). Among the eight restriction endonucleases used to physically map pGB301 were four that cleaved the plasmid at single sites yielding either sticky (HpaII, KpnI) or blunt-ends (HpaI, HaeIII/BspRI). Passenger DNA derived from larger streptococcal plasmids (pSF351C61, 69.5 kb; pIP800, 71 kb) was successfully inserted into the HpaII site and, by blunt-end cloning into the HaeIII/BspRI site. The gentamicin/kanamycin resistance gene of pIP800 was expressed by recombinant plasmids carrying the insert in either orientation. Insertion of passenger DNA into the HaeIII/BspRI site (but not the HpaII site) caused instability of adjacent pGB301 sequences which were frequently deleted, thereby removing the chloramphenicol resistance phenotype. The vector pGB301 has a remarkable capacity for passenger DNA (inserts up to 7 kb) and the property of instability and loss of a resistance phenotype following insertion of passenger DNA into the HaeIII/BspRI site should facilitate the identification of cloned segments of DNA when using this plasmid in molecular cloning experiments.
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Pribnow D, Sigurdson DC, Gold L, Singer BS, Napoli C, Brosius J, Dull TJ, Noller HF. rII cistrons of bacteriophage T4. DNA sequence around the intercistronic divide and positions of genetic landmarks. J Mol Biol 1981; 149:337-76. [PMID: 6273585 DOI: 10.1016/0022-2836(81)90477-0] [Citation(s) in RCA: 134] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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46
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Singer BS, Gold L, Shinedling ST, Colkitt M, Hunter LR, Pribnow D, Nelson MA. Analysis in vivo of translational mutants of the rIIB cistron of bacteriophage T4. J Mol Biol 1981; 149:405-32. [PMID: 7031268 DOI: 10.1016/0022-2836(81)90479-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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47
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Lansman RA, Shade RO, Shapira JF, Avise JC. The use of restriction endonucleases to measure mitochondrial DNA sequence relatedness in natural populations. III. Techniques and potential applications. J Mol Evol 1981; 17:214-26. [PMID: 6267312 DOI: 10.1007/bf01732759] [Citation(s) in RCA: 334] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Restriction endonucleases and agarose gel electrophoresis have been used to demonstrate extensive nucleotide sequence diversity in mitochondrial DNA (mtDNA) within and between conspecific populations of rodents and other mammals. Cleavage of mtDNA samples with a relatively small number of endonucleases provides information concerning the phylogenetic relatedness of individual organisms which cannot now be readily obtained by any other type of molecular analysis. This information is qualitatively different from that available from the study of nuclear genes or gene products because the mitochondrial genome is inherited intact from the female parent and is not altered by recombination or meiotic segregation. The requirements for large tissue samples and laborious DNA purification procedures have imposed severe limitations on the kinds of population surveys in which this technique could be utilized. Here, we show that these difficulties can be overcome by using DNA-DNA hybridization to detect minute amounts of mtDNA in crude tissue fractions which can be more easily and rapidly prepared from very small amounts of tissue without the use of expensive and immobile laboratory equipment. The techniques are described in detail in an effort to make restriction analysis of mtDNA available to biologists who may be unfamiliar with current DNA technology.
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48
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Purification and properties of a mammalian endonuclease showing site-specific cleavage of DNA. J Biol Chem 1981. [DOI: 10.1016/s0021-9258(19)69184-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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49
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The nucleotide sequence recognized by the BstEII restriction endonuclease. Gene X 1981. [DOI: 10.1016/0378-1119(81)90025-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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50
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Abstract
Hospital epidemiologists often rely upon "typing" of microorganisms to help determine their genetic relatedness. Most general clinical microbiology laboratories can determine biologic profiles (biotypes) and antimicrobial susceptibility patterns (antibiograms) of bacteria commonly isolated from specimens; occasionally serologic typing (serotype) is also performed. Special interest laboratories can provide serologic typing, bacteriophage susceptibility patterns (phage typing), bacteriocin production patterns, bacteriocin susceptibility patterns, plasmid analyses and chromosomal DNA analyses for a variety of bacteria, mycobacteria and fungi of nosocomial interest. Such laboratories can also provide serologic typing, restriction enzyme analyses and other special studies of viruses and related microorganisms. A useful and effective "typing" system should be (1) standardized, (2) reproducible, (3) sensitive, (4) stable, (5) available, (6) inexpensive, (7) applicable to a wide range of microorganisms, and (8) field tested in conjunction with epidemiologic investigation. Results should be reported in a standard manner with some discussion of the implications and limitations of the reported results. We suggest that a registry of typing methods be established to facilitate application of available methods to appropriate epidemiologic investigations.
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