Cited by 651DNA Repair MechanismsBRCA gene mutations in cancerCancer-related Molecular Pathways

BRCT Repeats As Phosphopeptide-Binding Modules Involved in Protein Targeting

Manke, Isaac A., Lowery, Drew M., Nguyen, Anhco, Yaffe, Michael B.·2003·Science

Abstract

We used a proteomic approach to identify phosphopeptide-binding modules mediating signal transduction events in the DNA damage response pathway. Using a library of partially degenerate phosphopeptides, we identified tandem BRCT (BRCA1 carboxyl-terminal) domains in PTIP (Pax transactivation domain-interacting protein) and in BRCA1 as phosphoserine- or phosphothreonine-specific binding modules that recognize substrates phosphorylated by the kinases ATM (ataxia telangiectasia–mutated) and ATR(ataxia telangiectasia– and RAD3-related) in response to γ-irradiation. PTIP tandem BRCT domains are responsible for phosphorylation-dependent protein localization into 53BP1- and phospho-H2AX (γ-H2AX)–containing nuclear foci, a marker of DNA damage. These findings provide a molecular basis for BRCT domain function in the DNA damage response and may help to explain why the BRCA1 BRCT domain mutation Met 1775 → Arg, which fails to bind phosphopeptides, predisposes women to breast and ovarian cancer.

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Crossref · 10.1126/science.1088877

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  • CTIP and ABRA1/Abraxas contain phospho-SXXF motifs that mediate direct interaction with BRCA1-BRCTs.

    “In addition to FANCJ, several proteins, including CTIP and ABRA1/Abraxas, have phospho-SXXF motifs (S is serine, F is phenylalanine and X varies) that mediate the direct interaction with the BRCA1-BRCTs, which are phospho-binding motifs [37–40].”
  • The C-terminal BRCT domains of BRCA1 form a phospho-peptide recognition domain that specifically binds phospho-peptides containing a pSPxF motif.

    “The C-terminal BRCT domains of BRCA1 constitute a phospho-peptide recognition domain that binds specifically to phospho-peptides containing a pSPxF (phosphor-serine-proline-x-phenylalanine) motif (Manke et al., 2003; Rodriguez et al., 2003; Yu et al., 2003).”

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Authors
Manke, I. A., Lowery, D. M., Nguyen, A., & Yaffe, M. B.
Affiliations
Massachusetts Institute of Technology (US)
Venue
Science
Published
2003-10-24
Volume
302
Issue
5645
Pages
636-639
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2038260399
Cited by
651
References
23
Citations by year
2026: 13 · 2025: 6 · 2024: 17 · 2023: 25 · 2022: 15 · 2021: 19 · 2020: 24 · 2019: 14 · 2018: 12 · 2017: 15 · 2016: 17 · 2015: 21 · 2014: 29 · 2013: 28 · 2012: 40
FWCI
18.73
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of General Medical Sciences (GM-60594, R01GM060594)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › BRCA gene mutations in cancer
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
BRCT domain, phosphopeptide binding, PTIP, BRCA1, ATM kinase, ATR kinase, DNA damage response, signal transduction, 53BP1 foci, γH2AX, protein localization, breast cancer predisposition, ovarian cancer predisposition, gamma irradiation
MeSH terms
Caffeine, Calorimetry, Carrier Proteins, Cell Nucleus, Cytosol, DNA Damage, DNA-Binding Proteins, Gamma Rays, Humans, Nuclear Proteins, Phosphopeptides, Phosphorylation, Phosphoserine, Phosphothreonine, Protein Binding, Tumor Cells, Cultured, Signal Transduction, Protein Serine-Threonine Kinases, Protein Structure, Tertiary, Cell Cycle Proteins, Peptide Library, BRCA1 Protein, Amino Acid Motifs, Tumor Suppressor Proteins, Proteomics, Ataxia Telangiectasia Mutated Proteins

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