Cited by 749DNA Repair MechanismsCancer-related Molecular PathwaysGenomics and Chromatin Dynamics

A superfamily of conserved domains in DNA damage‐ responsive cell cycle checkpoint proteins

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Bork, Peer, Hofmann, Kay, Bucher, Philipp, Neuwald, Andrew F., Altschul, Stephen F., Koonin, Eugene V.·1997·The FASEB Journal

Abstract

Computer analysis of a conserved domain, BRCT, first described at the carboxyl ter‐minus of the breast cancer protein BRCA1, a p53 binding protein (53BP1), and the yeast cell cycle checkpoint protein RAD9 revealed a large super‐ family of domains that occur predominantly in proteins involved in cell cycle checkpoint functions responsive to DNA damage. The BRCT domain consists of ~95 amino acid residues and occurs as a tandem repeat at the carboxyl terminus of numerous proteins, but has been observed also as a tandem repeat at the amino terminus or as a single copy. The BRCT superfamily presently includes ~40 nonorthologous proteins, namely, BRCA1, 53BP1, and RAD9; a protein family that consists of the fission yeast replication checkpoint protein Rad4, the oncoprotein ECT2, the DNA repair protein XRCC1, and yeast DNA polymerase subunit DPB11; DNA binding enzymes such as terminal deoxynucleotidyltransferases, deoxycy‐ tidyl transferase involved in DNA repair, and DNA‐ligases III and IV; yeast multifunctional transcription factor RAP1; and several uncharacterized gene products. Another previously described domain that is shared by bacterial NAD‐dependent DNA‐ligases, the large subunits of eukaryotic replication factor C, and poly(ADP‐ri‐ bose) polymerases appears to be a distinct version of the BRCT domain. The retinoblastoma protein (a universal tumor suppressor) and related proteins may contain a distant relative of the BRCT domain. Despite the functional diversity of all these proteins, participation in DNA damage‐re‐ sponsive checkpoints appears to be a unifying theme. Thus, the BRCT domain is likely to perform critical, yet uncharacterized, functions in the cell cycle control of organisms from bacteria to humans. The car boxyterminal BRCT domain of BRCA1 corresponds precisely to the recently identified minimal transcription activation domain of this protein, indicating one such function.— Bork, P., Hofmann, K., Bucher, P., Neuwald, A. F., Altschul, S. F., Koonin, E. V. A superfamily of conserved domains in DNA damage‐responsive cell cycle checkpoint proteins. FASEB J. 11, 68‐ 76 (1997)

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Crossref · 10.1096/fasebj.11.1.9034168

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  • The high evolutionary conservation of the BRCA1-BRCT domain suggested that this domain is essential for BRCA1 tumor suppression.

    “These findings, together with the high conservation of the BRCA1-BRCT domain throughout evolution [35], suggested that the BRCT domain was essential for the tumor-suppressing function of BRCA1.”

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Authors
Bork, P., Hofmann, K., Bucher, P., Neuwald, A. F., Altschul, S. F., & Koonin, E. V.
Affiliations
  • European Molecular Biology Laboratory 69012 Heidelberg Germany
  • Swiss Institute for Experimental Cancer Research 1066 Epalinges Switzerland
  • National Institutes of Health (US)
Corresponding author
Koonin, Eugene V.
Venue
The FASEB Journal
Publisher
Wiley
Published
1997-01
Volume
11
Issue
1
Pages
68-76
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W1768635289
Cited by
746
References
0
Citations by year
2026: 4 · 2025: 6 · 2024: 4 · 2023: 9 · 2022: 8 · 2021: 11 · 2020: 6 · 2019: 16 · 2018: 5 · 2017: 20 · 2016: 12 · 2015: 23 · 2014: 17 · 2013: 25 · 2012: 22
FWCI
19.32
Type
journal article
Language
en
Open access
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
BRCT domain, conserved domains, DNA damage response, cell cycle checkpoints, BRCA1, 53BP1, Rad9, Rad4, ECT2, XRCC1, Dpb11, terminal deoxynucleotidyl transferase, DNA ligase III, DNA ligase IV, Rap1, replication factor C, poly(ADP-ribose) polymerase, retinoblastoma protein, transcription activation domain, tandem repeats
MeSH terms
Amino Acid Sequence, Animals, Cell Cycle, DNA Damage, Humans, Molecular Sequence Data, Databases, Factual, Sequence Alignment, Conserved Sequence, Sequence Homology, Amino Acid, Sequence Analysis, Cell Cycle Proteins, BRCA1 Protein

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