CLSPN | Claspin
 
image/svg+xmlExtracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion None Substrate Localization legend

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Sequence Viewer
Gene
Synonyms
-
Protein Name
Claspin
UniProt ID
Q9HAW4 [go to UniProt ] [go to PDBe-KB ]
Ensembl Gene ID
NCBI Gene ID
Molecular Weight
151094
Protein Length
1339
Protein Domain
Target by Small Molecules
Protein-protein Interaction Database
Gene Expression
Drugs and Diseases
Enzyme Class
-
Catalytic Site
Catalytic Activity
-
Localization
Nucleus;
Function
Required for checkpoint mediated cell cycle arrest in response to inhibition of DNA replication or to DNA damage induced by both ionizing and UV irradiation. Adapter protein which binds to BRCA1 and the checkpoint kinase CHEK1 and facilitates the ATR-dependent phosphorylation of both proteins. Can also bind specifically to branched DNA structures and may associate with S-phase chromatin following formation of the pre-replication complex (pre-RC). This may indicate a role for this protein as a sensor which monitors the integrity of DNA replication forks.
Gene Ontology
GO:0005794; GO:0005654; GO:0010997; GO:0003677; GO:0032147; GO:0000077; GO:0006281; GO:0006260; GO:0033314; GO:0007095; GO:0018105; GO:0016579