Recombinant Human AP-2 complex subunit mu(AP2M1)

Mfr.No.	CSB-EP001872HU
Alternative Names	AP-2 mu chain,Adaptin-mu2,Adaptor protein complex AP-2 subunit mu,Adaptor-related protein complex 2 subunit mu,Clathrin assembly protein complex 2 mu medium chain,Clathrin coat assembly protein AP50,Clathrin coat-associated protein AP50,HA2 50 kDa subunit,Plasma membrane adaptor AP-2 50 kDa protein, AP-2 mu chain ; Adaptin-mu2 ; Adaptor protein complex AP-2 subunit mu ; Adaptor-related protein complex 2 subunit mu ; Clathrin assembly protein complex 2 mu medium chain ; Clathrin coat assembly protein AP50 ; Clathrin coat-associated protein AP50 ; HA2 50 kDa subunit ; Plasma membrane adaptor AP-2 50 kDa protein
Tag	N-terminal 6xHis-SUMO-tagged
Regulatory	RUO
Relevance	Component of the adaptor protein complex 2 (AP-2). Adaptor protein complexes function in protein transport via transport vesicles in different mbrane 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 surrounded 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 mbrane components. Clathrin-associated adaptor protein (AP) complexes which can bind directly to both the clathrin lattice and to the lipid and protein components of mbranes are considered to be the major clathrin adaptors contributing the CCV formation. AP-2 also serves as a cargo receptor to selectively sort the mbrane proteins involved in receptor-mediated endocytosis. AP-2 ses to play a role in the recycling of synaptic vesicle mbranes 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 transmbrane 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 mu subunit binds to transmbrane cargo proteins; it recognizes the Y-X-X-Phi motifs. The surface region interacting with to the Y-X-X-Phi motif is inaccessible in cytosolic AP-2, but becomes accessible through a conformational change following phosphorylation of AP-2 mu subunit at 'Tyr-156' in mbrane-associated AP-2. The mbrane-specific phosphorylation event appears to involve assbled clathrin which activates the AP-2 mu kinase AAK1 . Plays a role in endocytosis of frizzled family mbers upon Wnt signaling .
Source	E.coli
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Expression Region	1-435aa
Mol Weight	65.7kDa
Nature	recombinant
Protein Description	Full Length

Subcellular Location	Cell membrane, Membrane, coated pit, Peripheral membrane protein, Cytoplasmic side
Uniprot	Q96CW1, Q96CW1
Database Links	HGNC:564 OMIM:601024 KEGG:hsa:1173 STRING:9606.ENSP00000292807 UniGene:Hs.518460
Function	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 surrounded 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 mu subunit binds to transmembrane cargo proteins; it recognizes the Y-X-X-Phi motifs. The surface region interacting with to the Y-X-X-Phi motif is inaccessible in cytosolic AP-2, but becomes accessible through a conformational change following phosphorylation of AP-2 mu subunit at 'Tyr-156' in membrane-associated AP-2. The membrane-specific phosphorylation event appears to involve assembled clathrin which activates the AP-2 mu kinase AAK1 (By similarity). Plays a role in endocytosis of frizzled family members upon Wnt signaling (By similarity).
Pathway	Endocytosis; Synaptic vesicle cycle
Protein Families	Adaptor complexes medium subunit family
Research Area	Transport
Weight	65.6kDa

Stotage Note	Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
Buffer	Tris-based buffer，50% glycerol
Purity	Greater than 90% as determined by SDS-PAGE.
Storage	The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Storage Buffer	Tris-based buffer,50% glycerol