Aliases for ABCB5 Gene
External Ids for ABCB5 Gene
ABCB5 belongs to the ATP-binding cassette (ABC) transporter superfamily of integral membrane proteins. These proteins participate in ATP-dependent transmembrane transport of structurally diverse molecules ranging from small ions, sugars, and peptides to more complex organic molecules (Chen et al., 2005 [PubMed 15760339]).[supplied by OMIM, Mar 2008]
GeneCards Summary for ABCB5 Gene
ABCB5 (ATP-Binding Cassette, Sub-Family B (MDR/TAP), Member 5) is a Protein Coding gene. Among its related pathways are Transport of glucose and other sugars, bile salts and organic acids, metal ions and amine compounds and ABC-family proteins mediated transport. GO annotations related to this gene include ATPase activity, coupled to transmembrane movement of substances and efflux transmembrane transporter activity. An important paralog of this gene is ABCB11.
UniProtKB/Swiss-Prot for ABCB5 Gene
Drug efflux transporter present in a number of stem cells that acts as a regulator of cellular differentiation. Able to mediate efflux from cells of the rhodamine dye and of the therapeutic drug doxorubicin. Specifically present in limbal stem cells, where it plays a key role in corneal development and repair.
P-glycoprotein (ABCB1, MDR1) is a well-characterized human ABC transporter that was the first ABC transporter implicated in multidrug resistance. Normal physiological expression of P-glycoprotein has been found to prevent uptake of some lipophilic drugs into the brain and other key organs. P-glycoprotein is frequently overexpressed in cancer cells resulting in drugs being pumped out of the cells faster than they can enter. This causes a lower concentration of the drug in the cell and reduces the effectiveness of the drugs in killing cancer cells. Drugs that are affected by classical multidrug resistance include the vinca alkaloids (vinblastine and vincristine), the anthracyclines (doxorubicin and daunorubicin), the RNA transcription inhibitor actinomycin D and the microtubule-stabilizing drug taxol.