AP1B1 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Aliases | AP1B1 , ADTB1, AP105A, BAM22, CLAPB2, adaptor related protein complex 1 beta 1 subunit, adaptor related protein complex 1 subunit beta 1, KIDAR | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | OMIM: 600157; MGI: 1096368; HomoloGene: 21972; GeneCards: AP1B1; OMA:AP1B1 - orthologs | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Wikidata | |||||||||||||||||||||||||||||||||||||||||||||||||||
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AP-1 complex subunit beta-1 is a protein that in humans is encoded by the AP1B1 gene. [5] [6] [7]
Adaptor protein complex 1 is found at the cytoplasmic face of coated vesicles located at the Golgi complex, where it mediates both the recruitment of clathrin to the membrane and the recognition of sorting signals within the cytosolic tails of transmembrane receptors. This complex is a heterotetramer composed of two large, one medium, and one small adaptin subunit. The protein encoded by this gene serves as one of the large subunits of this complex and is a member of the adaptin protein family. [8] This gene is a candidate meningioma gene. Two transcript variants encoding different isoforms have been found for this gene, and variants utilizing alternative polyadenylation signals exist. [7]
AP1B1 has been shown to interact with KIF13A [9] and AP1G1. [10] [11] [12]
Vesicular transport adaptor proteins are proteins involved in forming complexes that function in the trafficking of molecules from one subcellular location to another. These complexes concentrate the correct cargo molecules in vesicles that bud or extrude off of one organelle and travel to another location, where the cargo is delivered. While some of the details of how these adaptor proteins achieve their trafficking specificity has been worked out, there is still much to be learned.
ADP-ribosylation factor-binding protein GGA1 is a protein that in humans is encoded by the GGA1 gene.
AP-2 complex subunit mu is a protein that in humans is encoded by the AP2M1 gene.
Coatomer subunit beta is a protein that in humans is encoded by the COPB1 gene.
AP-2 complex subunit alpha-1 is a protein that in humans is encoded by the AP2A1 gene.
AP-1 complex subunit mu-1 is a protein that in humans is encoded by the AP1M1 gene.
AP-1 complex subunit gamma-1 is a protein that in humans is encoded by the AP1G1 gene.
Clathrin heavy chain 1 is a protein that in humans is encoded by the CLTC gene.
AP-2 complex subunit beta is a protein that in humans is encoded by the AP2B1 gene.
AP-3 complex subunit delta-1 is a protein that in humans is encoded by the AP3D1 gene.
AP-1 complex subunit sigma-1A is a protein that in humans is encoded by the AP1S1 gene.
Coatomer subunit gamma-2 is a protein that in humans is encoded by the COPG2 gene.
AP-1 complex subunit gamma-like 2 is a protein that in humans is encoded by the AP1G2 gene.
AP-3 complex subunit mu-1 is a protein that in humans is encoded by the AP3M1 gene.
AP-1 complex subunit sigma-2 is a protein that in humans is encoded by the AP1S2 gene.
Synergin gamma also known as AP1 subunit gamma-binding protein 1 (AP1GBP1) is a protein that in humans is encoded by the SYNRG gene.
AP-3 complex subunit sigma-2 is a protein that in humans is encoded by the AP3S2 gene.
AP-2 complex subunit sigma is a protein that in humans is encoded by the AP2S1 gene.
Clathrin adaptor proteins, also known as adaptins, are vesicular transport adaptor proteins associated with clathrin. The association between adaptins and clathrin are important for vesicular cargo selection and transporting. Clathrin coats contain both clathrin and adaptor complexes that link clathrin to receptors in coated vesicles. Clathrin-associated protein complexes are believed to interact with the cytoplasmic tails of membrane proteins, leading to their selection and concentration. Therefore, adaptor proteins are responsible for the recruitment of cargo molecules into a growing clathrin-coated pits. The two major types of clathrin adaptor complexes are the heterotetrameric vesicular transport adaptor proteins (AP1-5), and the monomeric GGA adaptors. Adaptins are distantly related to the other main type of vesicular transport proteins, the coatomer subunits, sharing between 16% and 26% of their amino acid sequence.
The C-terminal domain ofBeta2-adaptin is a protein domain is involved in cell trafficking by aiding import and export of substances in and out of the cell.