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Phenix CP, Nienaber K, Tam PH, Delbaere LTJ, Palmer DRJ. Structural, Functional and Calorimetric Investigation of MosA, a Dihydrodipicolinate Synthase fromSinorhizobium melilotiL5–30, does not Support Involvement in Rhizopine Biosynthesis. Chembiochem 2008; 9:1591-602. [DOI: 10.1002/cbic.200700569] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Walker JB. Enzymatic synthesis of aminoglycoside antibiotics: novel adenosylmethionine:2-deoxystreptamine N-methyltransferase activities in hygromycin B- and spectinomycin-producing Streptomyces spp. and uses of the methylated products. Appl Environ Microbiol 2002; 68:2404-10. [PMID: 11976115 PMCID: PMC127588 DOI: 10.1128/aem.68.5.2404-2410.2002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2001] [Accepted: 02/26/2002] [Indexed: 11/20/2022] Open
Abstract
Aminocyclitols structurally related to streptamine, a 1,3-diaminocyclitol, are common components of the RNA-binding aminoglycoside antibiotics. The respective aminocyclitol cores of hygromycin B and spectinomycin are N(3)-methyl-2-deoxy-D-streptamine and N(1),N(3)-dimethyl-2-epi-streptamine. Adenosyl[methyl-(14)C]methionine:2-deoxystreptamine N-methyltransferase activities were detected in extracts of early-stationary-phase mycelia of the hygromycin B producer Streptomyces hygroscopicus subsp. hygroscopicus ATCC 27438 and the spectinomycin producer Streptomyces flavopersicus ATCC 19756. Extracts of both strains methylated the N(1)- and N(3)-amino groups of 2-deoxystreptamine, streptamine, and 2-epi-streptamine; the N(1)-amino group of N(3)-methyl-2-deoxy-D-streptamine, and the N(3)-amino group of N(1)-ethyl-2-deoxy-D-streptamine, the semisynthetic aminocyclitol of netilmicin. The mono[(14)C]methyl derivatives of 2-deoxystreptamine, streptamine, and 2-epi-streptamine were excellent substrates for L-glutamine:aminocyclitol aminotransferase and thereby provided a sensitive assay for derepression of this key enzyme, a generic biosynthetic marker that we have shown to be the only enzyme common to the biosyntheses of all major aminoglycoside antibiotics. Other prospective uses for these methyl-labeled 2-deoxystreptamine analogs are also described.
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Affiliation(s)
- James B Walker
- Department of Biochemistry and Cell Biology, Rice University, Houston, Texas 77251, USA.
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Walker JB. Enzymatic synthesis of aminocyclitol moieties of aminoglycoside antibiotics from inositol by Streptomyces spp.: detection of glutamine-aminocyclitol aminotransferase and diaminocyclitol aminotransferase activities in a spectinomycin producer. J Bacteriol 1995; 177:818-22. [PMID: 7836319 PMCID: PMC176663 DOI: 10.1128/jb.177.3.818-822.1995] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Extracts of stationary-phase mycelia of the spectinomycin producer Streptomyces flavopersicus ATCC 19756 catalyzed inositol dehydrogenase, L-glutamine:inosose aminotransferase, 2-epi-streptamine:inosose aminotransferase, streptamine:inosose aminotransferase, N3-methyl-2-deoxystreptamine:inosose aminotransferase, and aminodeoxy-scyllo-inositol:inosose aminotransferase reactions, as detected with a new rapid assay procedure. These results suggest that one or both amino groups of the N1,N3-dimethyl-2-epi-streptamine moiety of spectinomycin are derived by transamination from the alpha-amino group of L-glutamine. An enzymatic procedure for distinguishing among N1- and N3-monomethyl diaminocyclitol derivatives and their diaminocyclitol biosynthetic precursors is described. A scheme showing key roles of glutamine-aminocyclitol aminotransferases in biosynthesis of major aminoglycoside antibiotics is presented.
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Affiliation(s)
- J B Walker
- Department of Biochemistry and Cell Biology, Rice University, Houston, Texas 77251
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Gomes de Souza Berlinck R. Some aspects of guanidine secondary metabolites. FORTSCHRITTE DER CHEMIE ORGANISCHER NATURSTOFFE = PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS. PROGRES DANS LA CHIMIE DES SUBSTANCES ORGANIQUES NATURELLES 1995; 66:119-295. [PMID: 8847007 DOI: 10.1007/978-3-7091-9363-1_2] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Walker JB. Possible evolutionary relationships between streptomycin and bluensomycin biosynthetic pathways: detection of novel inositol kinase and O-carbamoyltransferase activities. J Bacteriol 1990; 172:5844-51. [PMID: 1698764 PMCID: PMC526902 DOI: 10.1128/jb.172.10.5844-5851.1990] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Bluensomycin (glebomycin) is an aminocyclitol antibiotic that differs structurally from dihydrostreptomycin in having bluensidine (1D-1-O-carbamoyl-3-guanidinodeoxy-scyllo-inositol) rather than streptidine (1,3-diguanidino-1,3-dideoxy-scyllo-inositol) as its aminocyclitol moiety. Extracts of the bluensomycin producer Streptomyces hygroscopicus form glebosus ATCC 14607 (S. glebosus) were found to have aminodeoxy-scyllo-inositol kinase activity but to lack 1D-1-guanidino-3-amino-1,3-dideoxy-scyllo-inositol kinase activity, showing for the first time that these two reactions in streptomycin producers must be catalyzed by different enzymes. S. glebosus extracts therefore possess the same five enzymes required for synthesis of guanidinodeoxy-scyllo-inositol from myo-inositol that are found in streptomycin producers but lack the next three of the four enzymes found in streptomycin producers that are required to synthesize the second guanidino group of streptidine-P. In place of a second guanidino group, S. glebosus extracts were found to catalyze a Mg2(+)-dependent carbamoylation of guanidinodeoxy-scyllo-inositol to form bluensidine, followed by a phosphorylation to form bluensidine-P. The novel carbamoyl-P:guanidinodeoxy-scyllo-inositol O-carbamoyltransferase and ATP:bluensidine phosphotransferase activities were not detected in streptomycin producers or in S. glebosus during its early rapid growth phase. Free bluensidine appears to be a normal intermediate in bluensomycin biosynthesis, in contrast to the case of streptomycin biosynthesis; in the latter, although exogenous streptidine can enter the pathway via streptidine-P, free streptidine is not an intermediate in the endogenous biosynthetic pathway. Comparison of the streptomycin and bluensomycin biosynthetic pathways provides a unique opportunity to evaluate those proposed mechanisms for the evolutionary acquisition of new biosynthetic capabilities that involve gene duplication and subsequent mutational changes in one member of the pair. In this model, there are at least five pairs of enzymes catalyzing analogous reactions that can be analyzed for homology at both the protein and DNA levels, including two putative pairs of inositol kinases detected in this study.
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Affiliation(s)
- J B Walker
- Department of Biochemistry and Cell Biology, Rice University, Houston, Texas 77251
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Ohnuki T, Imanaka T, Aiba S. Self-cloning in Streptomyces griseus of an str gene cluster for streptomycin biosynthesis and streptomycin resistance. J Bacteriol 1985; 164:85-94. [PMID: 2995326 PMCID: PMC214214 DOI: 10.1128/jb.164.1.85-94.1985] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
An str gene cluster containing at least four genes (strR, strA, strB, and strC) involved in streptomycin biosynthesis or streptomycin resistance or both was self-cloned in Streptomyces griseus by using plasmid pOA154. The strA gene was verified to encode streptomycin 6-phosphotransferase, a streptomycin resistance factor in S. griseus, by examining the gene product expressed in Escherichia coli. The other three genes were determined by complementation tests with streptomycin-nonproducing mutants whose biochemical lesions were clearly identified. strR complemented streptomycin-sensitive mutant SM196 which exhibited impaired activity of both streptomycin 6-phosphotransferase and amidinotransferase (one of the streptomycin biosynthetic enzymes) due to a regulatory mutation; strB complemented strain SD141, which was specifically deficient in amidinotransferase; and strC complemented strain SD245, which was deficient in linkage between streptidine 6-phosphate and dihydrostreptose. By deletion analysis of plasmids with appropriate restriction endonucleases, the order of the four genes was determined to be strR-strA-strB-strC. Transformation of S. griseus with plasmids carrying both strR and strB genes enhanced amidinotransferase activity in the transformed cells. Based on the gene dosage effect and the biological characteristics of the mutants complemented by strR and strB, it was concluded that strB encodes amidinotransferase and strR encodes a positive effector required for the full expression of strA and strB genes. Furthermore, it was found that amplification of a specific 0.7-kilobase region of the cloned DNA on a plasmid inhibited streptomycin biosynthesis of the transformants. This DNA region might contain a regulatory apparatus that participates in the control of streptomycin biosynthesis.
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Ohnuki T, Imanaka T, Aiba S. Isolation of streptomycin-nonproducing mutants deficient in biosynthesis of the streptidine moiety or linkage between streptidine 6-phosphate and dihydrostreptose. Antimicrob Agents Chemother 1985; 27:367-74. [PMID: 3922295 PMCID: PMC176279 DOI: 10.1128/aac.27.3.367] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Eight streptidine idiotrophic mutants (SD20, SD81, SD141, SD189, SD245, SD261, SD263, and SD274) which required streptidine to produce streptomycin were derived from Streptomyces griseus ATCC 10137 by UV mutagenesis. By both the characterization of intermediates accumulated by the idiotrophs and the assay of enzymes involved in streptidine biosynthesis, the biochemical lesions of the mutants were deduced as follows: SD20 and SD263, transamination; SD81, SD261, and SD274, phosphorylation; SD141, transamidination; SD189, dehydrogenation; SD245, linkage between streptidine 6-phosphate and dihydrostreptose. An accumulation of streptidine 6-phosphate was found in SD245 to impair its aminotransferase activity. This finding suggests that aminotransferase activity might have been negatively controlled by the end product, streptidine 6-phosphate, of the streptidine biosynthetic pathway.
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Malik VS. Genetics and Biochemistry of Secondary Metabolism. ADVANCES IN APPLIED MICROBIOLOGY 1982. [DOI: 10.1016/s0065-2164(08)70233-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Walker JB. On the development of enzymic pathways for the biosynthesis of aminocyclitol antibiotics and other idiolites. Folia Microbiol (Praha) 1979; 24:286-91. [PMID: 89065 DOI: 10.1007/bf02926462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Shier WT, Schaefer PC, Gottlieb D, Rinehart KL. Use of mutants in the study of aminocyclitol antibiotic biosynthesis and the preparation of the hybrimycin C complex. Biochemistry 1974; 13:5073-8. [PMID: 4433510 DOI: 10.1021/bi00722a002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Horner WH, Russ GA. Biosynthesis of streptomycin. VII. Stereospecificity of the enzymatic dehydrogenation of I-guanidino-I-deoxy-scyllo-inositol. BIOCHIMICA ET BIOPHYSICA ACTA 1971; 237:123-7. [PMID: 5578574 DOI: 10.1016/0304-4165(71)90038-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Miller AL, Walker JB. Accumulation of streptomycin-phosphate in cultures of streptomycin producers grown on a high-phosphate medium. J Bacteriol 1970; 104:8-12. [PMID: 5473919 PMCID: PMC248174 DOI: 10.1128/jb.104.1.8-12.1970] [Citation(s) in RCA: 51] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A phosphorylated derivative of streptomycin accumulated in cultures of Streptomyces griseus ATCC 12475 and SC2376 grown on complex media containing an excess of inorganic phosphate (0.01 m). This compound did not accumulate significantly in the absence of added inorganic phosphate. The phosphorylated derivative did not inhibit growth of Bacillus subtilis or support growth of a streptomycin-dependent strain of Escherichia coli; however, incubation of the derivative with alkaline phosphatase gave a compound which was active with both systems. In the phosphorylated derivative, phosphate is esterified with an -OH group of the streptidine moiety of streptomycin. It is suggested that the phosphoryl group is introduced during biosynthesis of the streptidine moiety of streptomycin or by the action of streptomycin kinase on preformed streptomycin (or both), and subsequent dephosphorylation by streptomycin-phosphate phosphatase is inhibited by high concentrations of inorganic phosphate. A column chromatographic procedure for separation of streptidine-phosphate, streptomycin-phosphate, and streptomycin is described.
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Walker JB. STREPTOMYCIN BIOSYNTHESIS: ENZYMATIC SYNTHESIS OF INOSAMINE AND INOSADIAMINE DERIVATIVES IN THE BIOSYNTHESIS OF STREPTIDINE. Ann N Y Acad Sci 1970. [DOI: 10.1111/j.1749-6632.1970.tb55945.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Demain AL, Inamine E. Biochemistry and regulation of streptomycin and mannosidostreptomycinase (alpha-D-mannosidase) formation. BACTERIOLOGICAL REVIEWS 1970; 34:1-19. [PMID: 4909646 PMCID: PMC378346 DOI: 10.1128/br.34.1.1-19.1970] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Walker JB. STREPTOMYCIN BIOSYNTHESIS: ENZYMATIC SYNTHESIS OF INOSAMINE AND INOSADIAMINE DERIVATIVES IN THE BIOSYNTHESIS OF STREPTIDINE *. Ann N Y Acad Sci 1970. [DOI: 10.1111/j.1749-6632.1970.tb56431.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Horner WH, Russ GA. Biosynthesis of streptomycin. VI. Myo-inosose-2, an intermediate in streptidine biosynthesis. BIOCHIMICA ET BIOPHYSICA ACTA 1969; 192:352-4. [PMID: 5370025 DOI: 10.1016/0304-4165(69)90376-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Miller AL, Walker JB. Enzymatic phosphorylation of streptomycin by extracts of streptomycin-producing strains of Streptomyces. J Bacteriol 1969; 99:401-5. [PMID: 5808071 PMCID: PMC250030 DOI: 10.1128/jb.99.2.401-405.1969] [Citation(s) in RCA: 43] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Extracts of post-exponential phase mycelia of Streptomyces bikiniensis ATCC 11062, and other streptomycin-producers, catalyze phosphorylation of streptomycin and dihydrostreptomycin with adenosine-5'-triphosphate. The phosphate is esterified with an -OH group of the streptidine moiety. It is suggested that O-phosphoryl-streptomycin might serve as an intracellular precursor of extracellular streptomycin or as a detoxification product of streptomycin or that it might serve an unknown physiological function in the producing organism.
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Walker JB, Walker MS. Streptomycin biosynthesis: enzymatic synthesis of scyllo-inosamine from scyllo-inosose and l-glutamine. BIOCHIMICA ET BIOPHYSICA ACTA 1968; 170:219-20. [PMID: 5721920 DOI: 10.1016/0304-4165(68)90181-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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