Aliases for BAP1 Gene
External Ids for BAP1 Gene
Previous GeneCards Identifiers for BAP1 Gene
This gene belongs to the ubiquitin C-terminal hydrolase subfamily of deubiquitinating enzymes that are involved in the removal of ubiquitin from proteins. The encoded enzyme binds to the breast cancer type 1 susceptibility protein (BRCA1) via the RING finger domain of the latter and acts as a tumor suppressor. In addition, the enzyme may be involved in regulation of transcription, regulation of cell cycle and growth, response to DNA damage and chromatin dynamics. Germline mutations in this gene may be associated with tumor predisposition syndrome (TPDS), which involves increased risk of cancers including malignant mesothelioma, uveal melanoma and cutaneous melanoma. [provided by RefSeq, May 2013]
BAP1 is a deubiquitylase thought to be a key regulator of many cancer-associated pathways. Germline alterations in BAP1 have been characterized as predisposing variants to familial melanocytic skin tumors. These alterations also have been linked to the development of mesothelioma, uveal melanoma, cutaneous melanoma and others. Clinically, the role of BAP1 is still being investigated. However, the development of intradermal tumors known as melanocytic BAP1-associated intradermal tumors (MBAITs) are enough for a patient to be subject to more intense surveillance to catch other malignancies as early as possible.
GeneCards Summary for BAP1 Gene
BAP1 (BRCA1 Associated Protein 1) is a Protein Coding gene. Diseases associated with BAP1 include Tumor Predisposition Syndrome and Bap1 Tumor Predisposition Syndrome. Among its related pathways are Metabolism of proteins and DNA Double-Strand Break Repair. Gene Ontology (GO) annotations related to this gene include chromatin binding and thiol-dependent ubiquitin-specific protease activity. An important paralog of this gene is UCHL5.
UniProtKB/Swiss-Prot for BAP1 Gene
Deubiquitinating enzyme that plays a key role in chromatin by mediating deubiquitination of histone H2A and HCFC1. Catalytic component of the PR-DUB complex, a complex that specifically mediates deubiquitination of histone H2A monoubiquitinated at Lys-119 (H2AK119ub1). Does not deubiquitinate monoubiquitinated histone H2B. Acts as a regulator of cell growth by mediating deubiquitination of HCFC1 N-terminal and C-terminal chains, with some specificity toward Lys-48-linked polyubiquitin chains compared to Lys-63-linked polyubiquitin chains. Deubiquitination of HCFC1 does not lead to increase stability of HCFC1. Interferes with the BRCA1 and BARD1 heterodimer activity by inhibiting their ability to mediate ubiquitination and autoubiquitination. It however does not mediate deubiquitination of BRCA1 and BARD1. Able to mediate autodeubiquitination via intramolecular interactions to couteract monoubiquitination at the nuclear localization signal (NLS), thereby protecting it from cytoplasmic sequestration (PubMed:24703950). Acts as a tumor suppressor.