BC000176
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UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
16,033 Da
NCBI Official Full Name
Homo sapiens RAP1B, member of RAS oncogene family, mRNA
NCBI Official Synonym Full Names
RAP1B, member of RAS oncogene family
NCBI Official Synonym Symbols
NCBI Protein Information
ras-related protein Rap-1b
UniProt Protein Name
Ras-related protein Rap-1b
UniProt Synonym Protein Names
GTP-binding protein smg p21B
UniProt Entry Name
RAP1B_HUMAN
NCBI Summary for RAP1B
This gene encodes a member of the RAS-like small GTP-binding protein superfamily. Members of this family regulate multiple cellular processes including cell adhesion and growth and differentiation. This protein localizes to cellular membranes and has been shown to regulate integrin-mediated cell signaling. This protein also plays a role in regulating outside-in signaling in platelets. Alternate splicing results in multiple transcript variants. Pseudogenes of this gene are found on chromosomes 3, 5, 6 and 9. [provided by RefSeq, Oct 2011]
UniProt Comments for RAP1B
RAP1B: GTP-binding protein that possesses intrinsic GTPase activity. Contributes to the polarizing activity of KRIT1 and CDH5 in the establishment and maintenance of correct endothelial cell polarity and vascular lumen. Required for the localization of phosphorylated PRKCZ, PARD3 and TIAM1 to the cell junction. Heterodimer with RAP1GAP. Interacts with EPAC2, SGSM1, SGSM2 and SGSM3. Activated by binding to the GTPase-activating protein RAP1GAP. Activated by guanine nucleotide-exchange factor (GEF) EPAC2 in a cAMP-dependent manner. Belongs to the small GTPase superfamily. Ras family.
Protein type: G protein, monomeric; G protein, monomeric, Ras; G protein
Chromosomal Location of Human Ortholog: 12q14
Cellular Component: cytosol; intercellular junction; intracellular; lipid particle; lipid raft; membrane; plasma membrane
Molecular Function: GDP binding; GTP binding; GTPase activity; protein binding; protein complex binding
Biological Process: microvillus biogenesis; Rap protein signal transduction
Research Articles on RAP1B
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Pathways associated with RAP1B cdna clone
Diseases associated with RAP1B cdna clone
Organs/Tissues associated with RAP1B cdna clone
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