Rabbit Polyclonal antibody to alpha Adaptin 2 (adaptor-related protein complex 2, alpha 2 subunit)Component of the adaptor protein complex 2 (AP-2). Adaptor protein complexes function in protein transport via transport vesicles in different membrane traffic pathways. Adaptor protein complexes are vesicle coat components and appear to be involved in cargo selection and vesicle formation. AP-2 is involved in clathrin-dependent endocytosis in which cargo proteins are incorporated into vesicles surrrounded by clathrin (clathrin-coated vesicles, CCVs) which are destined for fusion with the early endosome. The clathrin lattice serves as a mechanical scaffold but is itself unable to bind directly to membrane components. Clathrin-associated adaptor protein (AP) complexes which can bind directly to both the clathrin lattice and to the lipid and protein components of membranes are considered to be the major clathrin adaptors contributing the CCV formation. AP-2 also serves as a cargo receptor to selectively sort the membrane proteins involved in receptor-mediated endocytosis. AP-2 seems to play a role in the recycling of synaptic vesicle membranes from the presynaptic surface. AP-2 recognizes Y-X-X-[FILMV] (Y-X-X-Phi) and [ED]-X-X-X-L-[LI] endocytosis signal motifs within the cytosolic tails of transmembrane cargo molecules. AP-2 may also play a role in maintaining normal post-endocytic trafficking through the ARF6-regulated, non-clathrin pathway. The AP-2 alpha subunit binds polyphosphoinositide-containing lipids, positioning AP-2 on the membrane. The AP-2 alpha subunit acts via its C-terminal appendage domain as a scaffolding platform for endocytic accessory proteins. The AP-2 alpha and AP-2 sigma subunits are thought to contribute to the recognition of the [ED]-X-X-X-L-[LI] motif.
Immunogen
Recombinant protein encompassing a sequence within the center region of human alpha Adaptin 2. The exact sequence is proprietary.
Key Feature
Clonality
Polyclonal
Isotype
IgG
Host Species
Rabbit
Tested Applications
WB
*Optimal dilutions/concentrations should be determined by the researcher.
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Species Reactivity
Mouse
Predicted Reactivity
Human, Rat, Xenopus laevis, Chicken, BovineHuman (100%), Rat (99%), Xenopus laevis (98%), Chicken (98%), Bovine (98%)
Concentration
1mg/ml
Purification
Affinity purified
Target Information
Gene Synonyms
ADTAB antibody CLAPA2 antibody HIP9 antibody HYPJ antibody AP2A2 antibody plasma membrane adaptor HA2/AP2 adaptin alpha C subunit antibody "clathrin-associated/assembly/adaptor protein large alpha 2 antibody" AP-2 complex subunit alpha-2 antibody