1
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Singh A, Dyson HJ. Backbone and side-chain chemical shift assignments of p50 subunit of NF-κB transcription factor. Biomol NMR Assign 2021; 15:29-33. [PMID: 32936430 PMCID: PMC7960568 DOI: 10.1007/s12104-020-09978-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/12/2020] [Indexed: 06/11/2023]
Abstract
Nuclear Factor κB (NF-κB) is a family of five related transcription factors that recognize a κB DNA element on the promoter and enhancer regions of target genes and modulate their expression. Here we report a complete set of 1H, 13C, 15N backbone and side chain resonance assignments for the p50 DNA binding and dimerization domains of the p50 homodimer form of the NF-κB transcription factor. The chemical shift data constitute a first step towards understanding the mechanism of interaction of the p50 homodimer with DNA.
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Affiliation(s)
- Amrinder Singh
- Department of Integrative Structural and Computational Biology, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - H Jane Dyson
- Department of Integrative Structural and Computational Biology, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.
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2
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Karjalainen M, Hellman M, Tossavainen H, Permi P. 1H, 13C, and 15N NMR chemical shift assignment of the complex formed by the first EPEC EspF repeat and N-WASP GTPase binding domain. Biomol NMR Assign 2021; 15:213-217. [PMID: 33475933 PMCID: PMC7973643 DOI: 10.1007/s12104-021-10008-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
LEE-encoded effector EspF (EspF) is an effector protein part of enteropathogenic Escherichia coli's (EPEC's) arsenal for intestinal infection. This intrinsically disordered protein contains three highly conserved repeats which together compose over half of the protein's complete amino acid sequence. EPEC uses EspF to hijack host proteins in order to promote infection. In the attack EspF is translocated, together with other effector proteins, to host cell via type III secretion system. Inside host EspF stimulates actin polymerization by interacting with Neural Wiskott-Aldrich syndrome protein (N-WASP), a regulator in actin polymerization machinery. It is presumed that EspF acts by disrupting the autoinhibitory state of N-WASP GTPase binding domain. In this NMR spectroscopy study, we report the 1H, 13C, and 15N resonance assignments for the complex formed by the first 47-residue repeat of EspF and N-WASP GTPase binding domain. These near-complete resonance assignments provide the basis for further studies which aim to characterize structure, interactions, and dynamics between these two proteins in solution.
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Affiliation(s)
- Mikael Karjalainen
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, Jyvaskyla, Finland
| | - Maarit Hellman
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, Jyvaskyla, Finland
| | - Helena Tossavainen
- Department of Biological and Environmental Science, University of Jyvaskyla, Jyvaskyla, Finland
| | - Perttu Permi
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, Jyvaskyla, Finland.
- Department of Biological and Environmental Science, University of Jyvaskyla, Jyvaskyla, Finland.
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3
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Lang A, Goradia N, Wikman H, Werner S, Wilmanns M, Ohlenschläger O. 1H, 13C, and 15N backbone assignments of the C-terminal region of the human retinoic acid-induced protein 2. Biomol NMR Assign 2020; 14:271-275. [PMID: 32557393 DOI: 10.1007/s12104-020-09960-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
Retinoic acid-induced protein 2 is a human protein of 530 residues encoded by the RAI2 gene (Q9Y5P3; RAI2_HUMAN). RAI2 is a novel tumor suppressor protein whose depletion in breast cancer cell lines results in the downregulation of several genes associated with differentiation along with increased invasiveness and aggressive tumor phenotype of the cells. The role of the protein is specified to be a transcriptional regulator that promotes chromosomal stability and hence controls the expression of several regulators of cancer and metastasis. Structurally, RAI2 remains an unknown entity and, hence, to obtain a detailed view on the structure function relationship we report the 1H, 13C, and 15N resonance assignments for the backbone and side chain nuclei of the C-terminal region (a.a. 303-451 of UniProt Q9Y5P3) of RAI2.
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Affiliation(s)
- Andras Lang
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany
| | - Nishit Goradia
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607, Hamburg, Germany
| | - Harriet Wikman
- Institute of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Stefan Werner
- Institute of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Matthias Wilmanns
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607, Hamburg, Germany
- University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Oliver Ohlenschläger
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany.
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4
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Lang A, Kumar A, Jirschitzka J, Bordusa F, Ohlenschläger O, Wiedemann C. 1H, 13C, and 15N Backbone assignments of the human brain and acute leukemia cytoplasmic (BAALC) protein. Biomol NMR Assign 2020; 14:163-168. [PMID: 32240523 PMCID: PMC7462906 DOI: 10.1007/s12104-020-09938-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
The brain and acute leukemia cytoplasmic (BAALC; UniProt entry Q8WXS3) is a 180-residue-long human protein having six known isoforms. BAALC is expressed in either hematopoietic or neuroectodermal cells and its specific function is still to be revealed. However, as a presumably membrane-anchored protein at the cytoplasmic side it is speculated that BAALC exerts its function at the postsynaptic densities of certain neurons and might play a role in developing cytogenetically normal acute myeloid leukemia (CN-AML) when it is highly overexpressed by myeloid or lymphoid progenitor cells. In order to better understand the physiological role of BAALC and to provide the basis for a further molecular characterization of BAALC, we report here the 1H, 13C, and 15N resonance assignments for the backbone nuclei of its longest hematopoietic isoform (isoform 1). In addition, we present a 1HN and 15NH chemical shift comparison of BAALC with its shortest, neuroectodermal isoform (isoform 6) which shows only minor changes in the 1H and 15N chemical shifts.
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Affiliation(s)
- Andras Lang
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany
| | - Amit Kumar
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany
| | - Jan Jirschitzka
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zülpicher Str. 47, 50674, Cologne, Germany
| | - Frank Bordusa
- Institute of Biochemistry and Biotechnology, Charles Tanford Protein Center, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120, Halle, Germany
| | - Oliver Ohlenschläger
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany
| | - Christoph Wiedemann
- Institute of Biochemistry and Biotechnology, Charles Tanford Protein Center, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120, Halle, Germany.
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5
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Bhattacharya A, Shukla VK, Hosur RV, Kumar A. Backbone and side-chain resonance assignments of centromeric protein Scm3 from Saccharomyces cerevisiae. Biomol NMR Assign 2019; 13:267-273. [PMID: 30937734 DOI: 10.1007/s12104-019-09889-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
The centromeric chromatin plays an essential role in regulating the attachment of microtubules and controlling the segregation of sister chromatids during mitosis. In budding yeast, the evolutionary conserved histone variant, Cse4 is a vital component of the multiprotein kinetochore complex and is recruited to the centromere through its chaperone, Suppressor of chromosome mis-segregation (Scm3). Scm3 is an inner kinetochore protein crucial for the formation of a functional inner kinetochore. Scm3 has been known to play an active role in the assembly of the centromeric nucleosome and its deletion has been found to have deleterious effects on the cells leading to chromosome segregation defects. However, structural details of monomeric full length Scm3 have remained elusive so far. Here, we report the backbone and side-chain resonance assignments of centromeric protein, Scm3. 1H, 13C and 15N chemical shifts of Scm3 have been obtained by various 2D and 3D heteronuclear NMR experiments at pH 7.4 and 283 K.
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Affiliation(s)
- Anusri Bhattacharya
- UM-DAE-Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Mumbai, 400098, India
| | - Vaibhav Kumar Shukla
- UM-DAE-Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Mumbai, 400098, India
| | - Ramakrishna V Hosur
- UM-DAE-Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Mumbai, 400098, India.
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India.
| | - Ashutosh Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India.
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6
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Gartia J, Barnwal RP, Anangi R, Giri AR, King G, Chary KVR. 1H, 13C and 15N NMR assignments of two plant protease inhibitors (IRD7 and IRD12) from the plant Capsicum annuum. Biomol NMR Assign 2019; 13:31-35. [PMID: 30229451 DOI: 10.1007/s12104-018-9846-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 09/14/2018] [Indexed: 06/08/2023]
Abstract
Helicoverpa species are polyphagous pests, with the larval stages causing major damage to economically valuable crops such as cotton, tomato, corn, sorghum, peas, sunflower, wheat and other pulses. Over the years, Helicoverpa armigera has developed resistance to most classes of chemical insecticides, and consequently it is now largely controlled on cotton plants via the use of Bt transgenic crops that express insecticidal Cry toxins which in-turn expedited resistance development in a number of pest species including H. armigera. In a hope to provide other eco-friendly alternatives solutions to counter the effect of the pest, people have identified a number of protease inhibitors (PIs) from the domesticated capsicum species Capsicum annuum, several of which potently inhibited H. armigera gut proteases and impeded growth of H. armigera larva. With a view to explore and enhance the specific nature or properties of these PIs on the mechanism of inhibition, structural and functional characterization of these PIs are inevitable. Towards this goal, we have carried out complete 1H, 13C and 15N resonance assignments of two of these PIs, identified as IRD7 and IRD12, using a suite of 2D and 3D multi-dimensional and multi-nuclear NMR experiments.
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Affiliation(s)
- Janeka Gartia
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Gopanpally, Hyderabad, 500075, India
| | | | - Raveendra Anangi
- Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Ashok R Giri
- CSIR-National Chemical Laboratory, Pune, 411008, India
| | - Glenn King
- Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Kandala V R Chary
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Gopanpally, Hyderabad, 500075, India.
- Department of Chemical Sciences, Tata Institute of Fundamental Research, 1, Homi Bhabha RoadColaba, Mumbai, 400005, India.
- Indian Institute of Science Education and Research, Berhampur, Odisha, 760010, India.
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7
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Kumar A, Wißbrock A, Bellstedt P, Lang A, Ramachandran R, Wiedemann C, Imhof D, Ohlenschläger O. 1H, 13C, and 15N resonance assignments of the cytokine interleukin-36β isoform-2. Biomol NMR Assign 2019; 13:155-161. [PMID: 30758717 DOI: 10.1007/s12104-018-09869-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Interleukins are cytokines performing central tasks in the human immune system. Interleukin-36β (IL-36β) is a member of the interleukin-1 superfamily as are its homologues IL-36α and IL-36γ. All of them interact with a common receptor composed of IL-36R and IL-1R/acP. IL-36 cytokines can activate IL-36R to proliferation of CD4 + lymphocytes or stimulate M2 macrophages as potently as IL-1β. Within our efforts to study the structure-function relationship of the three interleukins IL-36α, IL-36β and IL-36γ by heteronuclear multidimensional NMR, we here report the 1H, 13C, and 15N resonance assignments for the backbone and side chain nuclei of cytokine interleukin-36β isoform-2.
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Affiliation(s)
- Amit Kumar
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany
| | - Amelie Wißbrock
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany
| | - Peter Bellstedt
- Faculty of Chemistry and Earth Sciences, Friedrich Schiller University, Humboldtstr. 10, 07743, Jena, Germany
| | - Andras Lang
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany
| | - Ramadurai Ramachandran
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany
| | - Christoph Wiedemann
- Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120, Halle/Saale, Germany
| | - Diana Imhof
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany
| | - Oliver Ohlenschläger
- Leibniz Institute on Aging - Fritz Lipmann Institute, Beutenbergstr. 11, 07745, Jena, Germany.
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8
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Sundararaj S, Shishmarev D, Lin Y, Aditya S, Casarotto MG. 1H, 13C and 15N backbone NMR chemical shift assignments of the C-terminal P4 domain of Ahnak. Biomol NMR Assign 2018; 12:253-257. [PMID: 29594929 DOI: 10.1007/s12104-018-9818-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 03/26/2018] [Indexed: 06/08/2023]
Abstract
Ahnak is a ~ 700 kDa polypeptide that was originally identified as a tumour-related nuclear phosphoprotein, but later recognized to play a variety of diverse physiological roles related to cell architecture and migration. A critical function of Ahnak is modulation of Ca2+ signaling in cardiomyocytes by interacting with the β subunit of the L-type Ca2+ channel (CaV1.2). Previous studies have identified the C-terminal region of Ahnak, designated as P3 and P4 domains, as a key mediator of its functional activity. We report here the nearly complete 1H, 13C and 15N backbone NMR chemical shift assignments of the 11 kDa C-terminal P4 domain of Ahnak. This study lays the foundations for future investigations of functional dynamics, structure determination and interaction site mapping of the CaV1.2-Ahnak complex.
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Affiliation(s)
- Srinivasan Sundararaj
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Dmitry Shishmarev
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia.
| | - Yiechang Lin
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shouvik Aditya
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Marco G Casarotto
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia.
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Pederson K, Chalmers GR, Gao Q, Elnatan D, Ramelot TA, Ma LC, Montelione GT, Kennedy MA, Agard DA, Prestegard JH. NMR characterization of HtpG, the E. coli Hsp90, using sparse labeling with 13C-methyl alanine. J Biomol NMR 2017; 68:225-236. [PMID: 28653216 PMCID: PMC5546222 DOI: 10.1007/s10858-017-0123-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 06/22/2017] [Indexed: 05/03/2023]
Abstract
A strategy for acquiring structural information from sparsely isotopically labeled large proteins is illustrated with an application to the E. coli heat-shock protein, HtpG (high temperature protein G), a 145 kDa dimer. It uses 13C-alanine methyl labeling in a perdeuterated background to take advantage of the sensitivity and resolution of Methyl-TROSY spectra, as well as the backbone-centered structural information from 1H-13C residual dipolar couplings (RDCs) of alanine methyl groups. In all, 40 of the 47 expected crosspeaks were resolved and 36 gave RDC data. Assignments of crosspeaks were partially achieved by transferring assignments from those made on individual domains using triple resonance methods. However, these were incomplete and in many cases the transfer was ambiguous. A genetic algorithm search for consistency between predictions based on domain structures and measurements for chemical shifts and RDCs allowed 60% of the 40 resolved crosspeaks to be assigned with confidence. Chemical shift changes of these crosspeaks on adding an ATP analog to the apo-protein are shown to be consistent with structural changes expected on comparing previous crystal structures for apo- and complex- structures. RDCs collected on the assigned alanine methyl peaks are used to generate a new solution model for the apo-protein structure.
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Affiliation(s)
- Kari Pederson
- Complex Carbohydrate Research Center, University of Georgia, Athens, USA
| | - Gordon R Chalmers
- Complex Carbohydrate Research Center, University of Georgia, Athens, USA
- Department of Computer Science, University of Georgia, Athens, USA
| | - Qi Gao
- Complex Carbohydrate Research Center, University of Georgia, Athens, USA
| | - Daniel Elnatan
- Department of Biochemistry and Biophysics, Howard Hughes Medical Institute, University of California, San Francisco, USA
| | - Theresa A Ramelot
- Department of Chemistry and Biochemistry, Miami University, Oxford, USA
| | - Li-Chung Ma
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, The State University of New Jersey, Piscataway, USA
- Department of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Gaetano T Montelione
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, The State University of New Jersey, Piscataway, USA
- Department of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, USA
| | - Michael A Kennedy
- Department of Chemistry and Biochemistry, Miami University, Oxford, USA
| | - David A Agard
- Department of Biochemistry and Biophysics, Howard Hughes Medical Institute, University of California, San Francisco, USA
| | - James H Prestegard
- Complex Carbohydrate Research Center, University of Georgia, Athens, USA.
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Gao Q, Chalmers GR, Moremen KW, Prestegard JH. NMR assignments of sparsely labeled proteins using a genetic algorithm. J Biomol NMR 2017; 67:283-294. [PMID: 28289927 PMCID: PMC5434516 DOI: 10.1007/s10858-017-0101-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/22/2017] [Indexed: 05/16/2023]
Abstract
Sparse isotopic labeling of proteins for NMR studies using single types of amino acid (15N or 13C enriched) has several advantages. Resolution is enhanced by reducing numbers of resonances for large proteins, and isotopic labeling becomes economically feasible for glycoproteins that must be expressed in mammalian cells. However, without access to the traditional triple resonance strategies that require uniform isotopic labeling, NMR assignment of crosspeaks in heteronuclear single quantum coherence (HSQC) spectra is challenging. We present an alternative strategy which combines readily accessible NMR data with known protein domain structures. Based on the structures, chemical shifts are predicted, NOE cross-peak lists are generated, and residual dipolar couplings (RDCs) are calculated for each labeled site. Simulated data are then compared to measured values for a trial set of assignments and scored. A genetic algorithm uses the scores to search for an optimal pairing of HSQC crosspeaks with labeled sites. While none of the individual data types can give a definitive assignment for a particular site, their combination can in most cases. Four test proteins previously assigned using triple resonance methods and a sparsely labeled glycosylated protein, Robo1, previously assigned by manual analysis, are used to validate the method and develop a criterion for identifying sites assigned with high confidence.
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Affiliation(s)
- Qi Gao
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Gordon R Chalmers
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
- Department of Computer Science and Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Kelley W Moremen
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - James H Prestegard
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA.
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11
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Verma D, Sakuntala M, Murmu A, Bhattacharya A, Chary KVR. 1H, 13C and 15N NMR assignments of an unusual Ca 2+-binding protein from Entamoeba histolytica in its apo form. Biomol NMR Assign 2017; 11:63-67. [PMID: 27990612 DOI: 10.1007/s12104-016-9721-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 12/01/2016] [Indexed: 06/06/2023]
Abstract
We report almost complete sequence specific 1H, 13C and 15N NMR assignments of an unusual Ca2+-binding protein from Entamoeba histolytica (EhCaBP6) in its apo form as a prelude to its structural and functional characterization.
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Affiliation(s)
- Deepshikha Verma
- Department of Chemical Sciences, Tata Institute of Fundamental Research, 1, Homi Bhabha Road, Colaba, Mumbai, 400005, India
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, 21, Brindavan Colony, Narsingi, Hyderabad, 500075, India
| | - Mutyala Sakuntala
- Department of Chemical Sciences, Tata Institute of Fundamental Research, 1, Homi Bhabha Road, Colaba, Mumbai, 400005, India
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, 21, Brindavan Colony, Narsingi, Hyderabad, 500075, India
| | - Aruna Murmu
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Alok Bhattacharya
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Kandala V R Chary
- Department of Chemical Sciences, Tata Institute of Fundamental Research, 1, Homi Bhabha Road, Colaba, Mumbai, 400005, India.
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, 21, Brindavan Colony, Narsingi, Hyderabad, 500075, India.
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12
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Verma D, Bhattacharya A, Chary KVR. 1H, 13C and 15N NMR assignments of a calcium-binding protein from Entamoeba histolytica. Biomol NMR Assign 2016; 10:67-70. [PMID: 26377206 DOI: 10.1007/s12104-015-9639-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 09/09/2015] [Indexed: 06/05/2023]
Abstract
We report almost complete sequence specific (1)H, (13)C and (15)N NMR assignments of a 150-residue long calmodulin-like calcium-binding protein from Entamoeba histolytica (EhCaBP6), as a prelude to its structural and functional characterization.
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Affiliation(s)
- Deepshikha Verma
- Department of Chemical Sciences, Tata Institute of Fundamental Research, 1, Homi Bhabha Road, Colaba, Mumbai, 400005, India
| | - Alok Bhattacharya
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Kandala V R Chary
- Department of Chemical Sciences, Tata Institute of Fundamental Research, 1, Homi Bhabha Road, Colaba, Mumbai, 400005, India.
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, 21, Brindavan Colony, Narsingi, Hyderabad, 500075, India.
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