Recombinant Human CHMP4B Protein (M1-M224), His/Strep tagged

Description :	Probable core component of the endosomal sorting required for transport complex III (ESCRT-III) which is involved in multivesicular bodies (MVBs) formation and sorting of endosomal cargo proteins into MVBs. MVBs contain intraluminal vesicles (ILVs) that are generated by invagination and scission from the limiting membrane of the endosome and mostly are delivered to lysosomes enabling degradation of membrane proteins, such as stimulated growth factor receptors, lysosomal enzymes and lipids. The MVB pathway appears to require the sequential function of ESCRT-O, -I,-II and -III complexes. ESCRT-III proteins mostly dissociate from the invaginating membrane before the ILV is released. The ESCRT machinery also functions in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis. Together with SPAST, the ESCRT-III complex promotes nuclear envelope sealing and mitotic spindle disassembly during late anaphase. Plays a role in the endosomal sorting pathway. ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4. When overexpressed, membrane-assembled circular arrays of CHMP4B filaments can promote or stabilize negative curvature and outward budding. CHMP4A/B/C are required for the exosomal release of SDCBP, CD63 and syndecan.
Source :	E. coli
Species :	Human
Tag :	His&Strep
Form :	Liquid
Protein length :	M1-M224
Endotoxin :	< 0.01 EU per μg of the protein
Purity :	90%
Stability :	Samples are stable for up to twelve months from date of receipt at -20 to -80 centigrade.
Storage :	Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Storage Buffer :	Supplied as sterile 50 mM Tris-HCl (pH7.5), 200 mM NaCl, 20% glycerol
Shipping :	It is shipped out with blue ice.

Gene Name	CHMP4B charged multivesicular body protein 4B [ Homo sapiens (human) ]
Official Symbol	CHMP4B
Synonyms	CHMP4B; charged multivesicular body protein 4B; C20orf178, chromatin modifying protein 4B, chromosome 20 open reading frame 178; charged multivesicular body protein 4b; dJ553F4.4; Shax1; SNF7 2; VPS32B; hSnf7-2; hVps32-2; chromatin modifying protein 4B; chromatin-modifying protein 4b; SNF7 homolog associated with Alix 1; Snf7 homologue associated with Alix 1; vacuolar protein sorting-associated protein 32-2; vacuolar protein-sorting-associated protein 32-2; SNF7; CTPP3; CHMP4A; SNF7-2; Vps32-2; C20orf178;
Gene ID	128866
mRNA Refseq	NM_176812
Protein Refseq	NP_789782
MIM	610897
UniProt ID	Q9H444