BP14529-13A

Family :

structural protein (scaffold, adaptor, assembly )

Catalog No. :

BP14529-13A

Protein :

CHMP4B

UniProt :

Q9H444

Organism :

Homo sapiens

Expression system :

E. coli

Tag :

His/Strep

Sequence :

M1-M224

Inquiry :

Product Information

Symbol/Gene Name:  CHMP4B

Alias:  Charged multivesicular body protein 4b,Chromatin-modifying protein 4b,CHMP4b,SNF7 homolog associated with Alix 1,SNF7-2,hSnf7-2,Vacuolar protein sorting-associated protein 32-2,Vps32-2,hVps32-2

Uniprot: Q9H444

Background: 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 (PubMed:12860994, PubMed:18209100). The ESCRT machinery also functions in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis (PubMed:21310966). Together with SPAST, the ESCRT-III complex promotes nuclear envelope sealing and mitotic spindle disassembly during late anaphase (PubMed:26040712). 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 (PubMed:22660413).

Construct: 6His-strepII-TEV-GG-CHMP4B(M1-M224 end)

Expression Host: E. coli

Purity: 90%

Formulation: 50 mM Tris-HCl (pH7.5), 200 mM NaCl, 20% glycerol

Supplied as sterile

Please contact us for any concerns or special requirements.

Please refer to the specific buffer information in the hard copy of CoA.

Endotoxin:

< 0.01 EU per μg of the protein

Shipping:

Liquid. It is shipped out with blue ice.

Stability & Storage:

Samples are stable for up to twelve months from date of receipt at -20 to -80

Store it under sterile conditions at -20 to -80. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

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