| Function | Component of the 9-1-1 cell-cycle checkpoint response complex that plays a major role in DNA repair. The 9-1-1 complex is recruited to DNA lesion upon damage by the RAD17-replication factor C (RFC) clamp loader complex. Acts then as a sliding clamp platform on DNA for several proteins involved in long-patch base excision repair (LP-BER). The 9-1-1 complex stimulates DNA polymerase beta (POLB) activity by increasing its affinity for the 3'-OH end of the primer-template and stabilizes POLB to those sites where LP-BER proceeds.endonuclease FEN1 cleavage activity on substrates with double, nick, or gap flaps of distinct sequences and lengths.and DNA ligase I (LIG1) on long-patch base excision repair substrates. The 9-1-1 complex is necessary for the recruitment of RHNO1 to sites of double-stranded breaks (DSB) occurring during the S phase. |
| Protein Name | Checkpoint Protein Hus1Hhus1 |
| Database Links | Reactome: R-HSA-176187Reactome: R-HSA-5685938Reactome: R-HSA-5693607Reactome: R-HSA-5693616Reactome: R-HSA-6804756Reactome: R-HSA-69473Reactome: R-HSA-9709570 |
| Cellular Localisation | NucleusCytoplasmCytosolIn Discrete Nuclear Foci Upon Dna DamageLocalized Also In The CytoplasmDna Damage Induces Its Nuclear TranslocationShuttles Between The Nucleus And The Cytoplasm |
| Alternative Protein Names | Checkpoint Protein Hus1 proteinHhus1 proteinHUS1 protein |
Information sourced from Uniprot.org
