OBFC2B Component of the SOSS complex, a multiprotein complex that functions downstream of the MRN complex to promote DNA repair and G2/M checkpoint. In the SOSS complex, acts as a sensor of single-stranded DNA that binds to single-stranded DNA, in particular to polypyrimidines. The SOSS complex associates with DNA lesions and influences diverse endpoints in the cellular DNA damage response including cell-cycle checkpoint activation, recombinational repair and maintenance of genomic stability. Required for efficient homologous recombination-dependent repair of double-strand breaks (DSBs) and ATM-dependent signaling pathways. Belongs to the SOSS-B family. SOSS-B1 subfamily. 2 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.
Protein type: Cell cycle regulation; DNA repair, damage
Chromosomal Location of mouse Ortholog: 10|10 D3
Cellular Component:  chromosome, telomeric region; cytosol; nucleoplasm; nucleus; site of double-strand break; SOSS complex
Molecular Function:  DNA binding; DNA polymerase binding; G-rich strand telomeric DNA binding; nucleic acid binding; single-stranded DNA binding
Biological Process:  DNA damage response; DNA repair; double-strand break repair via homologous recombination; establishment of protein localization to telomere; mitotic cell cycle checkpoint signaling; mitotic G2/M transition checkpoint; positive regulation of telomere capping; response to ionizing radiation
Reference #:  Q8R2Y9 (UniProtKB)
Alt. Names/Synonyms: 2610036N15Rik; MGC30353; Nabp2; nucleic acid binding protein 2; Nucleic acid-binding protein 2; Obfc2; Obfc2b; oligonucleotide/oligosaccharide-binding fold containing 2B; Oligonucleotide/oligosaccharide-binding fold-containing protein 2B; Sensor of single-strand DNA complex subunit B1; Sensor of ssDNA subunit B1; Single-stranded DNA-binding protein 1; SOSB1; SOSS complex subunit B1; SOSS-B1; Ssb1
Gene Symbols: Nabp2
Molecular weight: 22,628 Da
Basal Isoelectric point: 9.17  Predict pI for various phosphorylation states
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OBFC2B

Protein Structure Not Found.


Cross-references to other databases:  AlphaFold  |  STRING  |  BioGPS  |  Pfam  |  Phospho.ELM  |  NetworKIN  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene  |  Ensembl Protein