Alpha-Adaptin (clone 100/2), anti-human, rat

Description: Mouse IgG monoclonal antibody for alpha-Adaptin, adaptor-related protein complex 2, alpha 1 subunit (AP2A1 ) detection. Tested with WB in Human;rat. No cross reactivity with other proteins.Protein Name: AP-2 complex subunit alpha-1

Protein Function:
AP2A1: Component of the adaptor protein complex 2 (AP-2).Adaptor protein complexes function in protein transport viatransport vesicles in different membrane traffic pathways. Adaptorprotein complexes are vesicle coat components and appear to beinvolved in cargo selection and vesicle formation. AP-2 isinvolved in clathrin-dependent endocytosis in which cargo proteinsare incorporated into vesicles surrounded by clathrin (clathrin-coated vesicles, CCVs) which are destined for fusion with theearly endosome. The clathrin lattice serves as a mechanicalscaffold but is itself unable to bind directly to membranecomponents. Clathrin-associated adaptor protein (AP) complexeswhich can bind directly to both the clathrin lattice and to thelipid and protein components of membranes are considered to be themajor clathrin adaptors contributing the CCV formation. AP-2 alsoserves as a cargo receptor to selectively sort the membraneproteins involved in receptor-mediated endocytosis. AP-2 seems toplay a role in the recycling of synaptic vesicle membranes fromthe presynaptic surface. AP-2 recognizes Y-X-X-[FILMV] (Y-X-X-Phi)and [ED]-X-X-X-L-[LI] endocytosis signal motifs within thecytosolic tails of transmembrane cargo molecules. AP-2 may alsoplay a role in maintaining normal post-endocytic traffickingthrough the ARF6-regulated, non-clathrin pathway. The AP-2 alphasubunit binds polyphosphoinositide-containing lipids, positioningAP-2 on the membrane. The AP-2 alpha subunit acts via its C-terminal appendage domain as a scaffolding platform for endocyticaccessory proteins. The AP-2 alpha and AP-2 sigma subunits arethought to contribute to the recognition of the [ED]-X-X-X-L-[LI]motif (By similarity).

Clone Name(s):
100/2

Subcellular Localization: AP2A1: Cell membrane Membrane,coated pit Note: AP-2 appearsto be excluded from internalizing CCVs and to disengage from sitesof endocytosis seconds before internalization of the nascent CCV.|Ap2a1: Cell membrane Membrane,coated pit Note: AP-2 appearsto be excluded from internalizing CCVs and to disengage from sitesof endocytosis seconds before internalization of the nascent CCV.

Tissue Specificity: AP2A1: Isoform A expressed in forebrain, skeletalmuscle, spinal cord, cerebellum, salivary gland, heart and colon.Isoform B is widely expressed in tissues and also in breast cancerand in prostate carcinoma cells.

Immunogen: AP-2 adaptor polypeptides from bovine brain.

Calculated MW: 107675 MW

Purification: Ascites

Format: Lyophilized

Reconstitution: Add 1ml of PBS buffer will yield a concentration of 100ug/ml.

Contents: Mouse ascites fluid, 1.2% sodium acetate, 2mg BSA, with 0.01mg NaN3 as preservative.

Concentration (mg/ml): Add 1ml of PBS buffer will yield a concentration of 100ug/ml.

Storage: At -20˚C for one year. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for a longer time.Avoid repeated freezing and thawing.