دورية أكاديمية
The structural details of the interaction of single-stranded DNA binding protein hSSB2 (NABP1/OBFC2A) with UV-damaged DNA.
| العنوان: | The structural details of the interaction of single-stranded DNA binding protein hSSB2 (NABP1/OBFC2A) with UV-damaged DNA. |
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| المؤلفون: | Lawson T; School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia., El-Kamand S; School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia., Boucher D; Cancer and Ageing Research Program, Institute of Health and Biomedical Innovation, Translational Research Institute, Queensland University of Technology, Woolloongabba, Queensland, Australia., Duong DC; School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia., Kariawasam R; School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia., Bonvin AMJJ; Bijvoet Center for Biomolecular Research, Faculty of Science - Chemistry, Utrecht University, Utrecht, The Netherlands., Richard DJ; Cancer and Ageing Research Program, Institute of Health and Biomedical Innovation, Translational Research Institute, Queensland University of Technology, Woolloongabba, Queensland, Australia., Gamsjaeger R; School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia.; School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales, Australia., Cubeddu L; School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia.; School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales, Australia. |
| المصدر: | Proteins [Proteins] 2020 Feb; Vol. 88 (2), pp. 319-326. Date of Electronic Publication: 2019 Aug 30. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Wiley-Liss Country of Publication: United States NLM ID: 8700181 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-0134 (Electronic) Linking ISSN: 08873585 NLM ISO Abbreviation: Proteins Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: New York, NY : Wiley-Liss Original Publication: New York : Alan R. Liss, c1986- |
| مواضيع طبية MeSH: | DNA Damage* , Ultraviolet Rays*, DNA, Single-Stranded/*chemistry , DNA-Binding Proteins/*chemistry, Binding Sites/genetics ; DNA Repair ; DNA, Single-Stranded/genetics ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/genetics ; DNA-Binding Proteins/metabolism ; HeLa Cells ; Humans ; Interferometry/methods ; Magnetic Resonance Spectroscopy/methods ; Mitochondrial Proteins/chemistry ; Mitochondrial Proteins/genetics ; Mitochondrial Proteins/metabolism ; Models, Molecular ; Oligonucleotides/genetics ; Oligonucleotides/metabolism ; Protein Binding ; Protein Domains |
| مستخلص: | Single-stranded DNA-binding proteins (SSBs) are required for all known DNA metabolic events such as DNA replication, recombination and repair. While a wealth of structural and functional data is available on the essential human SSB, hSSB1 (NABP2/OBFC2B), the close homolog hSSB2 (NABP1/OBFC2A) remains relatively uncharacterized. Both SSBs possess a well-structured OB (oligonucleotide/oligosaccharide-binding) domain that is able to recognize single-stranded DNA (ssDNA) followed by a flexible carboxyl-tail implicated in the interaction with other proteins. Despite the high sequence similarity of the OB domain, several recent studies have revealed distinct functional differences between hSSB1 and hSSB2. In this study, we show that hSSB2 is able to recognize cyclobutane pyrimidine dimers (CPD) that form in cellular DNA as a consequence of UV damage. Using a combination of biolayer interferometry and NMR, we determine the molecular details of the binding of the OB domain of hSSB2 to CPD-containing ssDNA, confirming the role of four key aromatic residues in hSSB2 (W59, Y78, W82, and Y89) that are also conserved in hSSB1. Our structural data thus demonstrate that ssDNA recognition by the OB fold of hSSB2 is highly similar to hSSB1, indicating that one SSB may be able to replace the other in any initial ssDNA binding event. However, any subsequent recruitment of other repair proteins most likely depends on the divergent carboxyl-tail and as such is likely to be different between hSSB1 and hSSB2. (© 2019 Wiley Periodicals, Inc.) |
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| فهرسة مساهمة: | Keywords: DNA repair; NABP1; NMR; OBFC2A; SSB; hSSB2 |
| المشرفين على المادة: | 0 (DNA, Single-Stranded) 0 (DNA-Binding Proteins) 0 (Mitochondrial Proteins) 0 (Oligonucleotides) 0 (SSBP1 protein, human) 0 (SSBP2 protein, human) |
| تواريخ الأحداث: | Date Created: 20190824 Date Completed: 20201223 Latest Revision: 20201223 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1002/prot.25806 |
| PMID: | 31443132 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1097-0134 |
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| DOI: | 10.1002/prot.25806 |