Recombinant Human Charged multivesicular body protein 2b(CHMP2B)

Code CSB-EP891990HU
Size $1812 How to order?
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names CHMP2B
Uniprot No. Q9UQN3
Research Area Signal Transduction
Alternative Names ALS17; Charged multivesicular body protein 2b; CHM2B_HUMAN; CHMP family; member 2B; CHMP2.5; CHMP2b; Chromatin modifying protein 2b; Chromatin-modifying protein 2b; DMT1; hVps2-2; Vacuolar protein sorting 2; yeast; homolog of; B; Vacuolar protein sorting 2-2; Vacuolar protein sorting-associated protein 2-2; VPS2 homolog B; Vps2-2; VPS2B
Species Homo sapiens (Human)
Source E.coli
Expression Region 1-213aa
Target Protein Sequence ASLFKKKTVDDVIKEQNRELRGTQRAIIRDRAALEKQEKQLELEIKKMAKIGNKEACKVLAKQLVHLRKQKTRTFAVSSKVTSMSTQTKVMNSQMKMAGAMSTTAKTMQAVNKKMDPQKTLQTMQNFQKENMKMEMTEEMINDTLDDIFDGSDDEEESQDIVNQVLDEIGIEISGKMAKAPSAARSLPSASTSKATISDEEIERQLKALGVD
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 50.8kDa
Protein Length Full Length
Tag Info N-terminal GST-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life 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.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

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Target Background

Function
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 and the budding of enveloped viruses (HIV-1 and other lentiviruses). ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4.
Gene References into Functions
  1. We directly link TDP-43 loss of function toxicity to two genes with rare amyotrophic lateral sclerosis and frontotemporal lobar degeneration-causing mutations, CHMP2B and ErbB4 PMID: 27621269
  2. these data indicate that the neuronal expression of human CHMP2B(intron5) in areas involved in motor and cognitive functions induces progressive motor alterations associated with dementia symptoms and with histopathological hallmarks reminiscent of both amyotrophic lateral sclerosis and frontotemporal dementia. PMID: 27329763
  3. Endogenous TMEM106B was partly sequestered in CHMP2B-positive structures. SNP T185 was more associated with CHMP2B than SNP S185, and it enhanced neurotoxicity caused by CHMP2B(Intron5) compared to S185-expressing cells. PMID: 26651479
  4. Study showed that mutant CHMP2B causes the pathological accumulation of endolysosomal components early in the frontotemporal dementia disease course PMID: 26358247
  5. Protein kinase CK2 alpha is involved in the phosphorylation of the ESCRT-III subunits CHMP3 and CHMP2B, as well as of VPS4B/SKD1, an ATPase that mediates ESCRT-III disassembly. PMID: 24440309
  6. Data indicate that knockdown of syntaxin 13 (syx13) further increased the cellular toxicity caused by muaant CHMP2B (CHMP2BIntron5) expression. PMID: 24095276
  7. CHMP2B immunoreactivity was increased in the dorsal motor nucleus of the vagus nerve in Parkinson's disease and incidental Lewy body disease brains PMID: 22989140
  8. These findings suggest that endosomal and autophagic pathway is associated with degradation or formation of alpha-synuclein aggregates in alpha-synucleinopathy. PMID: 22947304
  9. Subjects with CHMP2B mutation show cognitive changes dominated by executive dysfunctions, years before they fulfil diagnostic criteria of FTD. PMID: 23142962
  10. Direct link between disease-causing mutations and the cellular phenotype in cells originating from CHMP2B mutation patients with frontotemporal dementia. PMID: 22786763
  11. This study provided a better understanding of the cellular pathogenesis of neurodegenerative diseases associated with various missense mutations of CHMP2B as well as endocytic defects. PMID: 22521643
  12. CHMP2B polymerization scaffolds membranes in vivo represents a first step toward demonstrating its structural role during outward membrane deformation PMID: 21926173
  13. recent advances in our understanding of the molecular basis of CHMP2B mutations indicate that the mechanisms involved may be broadly relevant to neurodegenerative processes.[review] PMID: 21222599
  14. A novel heterozygous variant p.Ser194Leu (c.581C>T) is found in exon 6 of the CHMP2B gene in one male patient with pure frontotemporal lobar degeneration. PMID: 20625756
  15. The results of this study confirmed that mutations in CHMP2B are not a common cause of frontotemporal lobar degeneration. PMID: 20412296
  16. CHMP2B is required for spine growth. Taken together, these results demonstrate that a mutant ESCRT-III subunit linked to a human neurodegenerative disease can disrupt the normal pattern of spine development. PMID: 20699355
  17. analysis of CHMP2B mutations in lower motor neuron predominant amyotrophic lateral sclerosis PMID: 20352044
  18. The fusion of endosomes with lysosomes is required for neuronal function suggesting a pathogenic mechanism for frontotemporal dementia caused by CHMP2B mutations. PMID: 20223751
  19. CHMP2B can be used as a reliable marker for GVD in neurons of the AD hippocampus. PMID: 20420883
  20. there were no significant differences in the frequencies of the IVS4 + 44C/A, 1303C/A, 1254T/C and IVS15Ex16-16C/G polymorphism haplotypes in the patient cohorts (regardless of the degree of hepatic iron deposition) compared to the control cohort PMID: 15223008
  21. identify a mutation in CHMP2B, encoding a component of the endosomal ESCRTIII complex, and show that it results in aberrant mRNA splicing in tissue samples from affected members of family with autosomal dominant frontotermporal dementia PMID: 16041373
  22. Mutations in CHMP2B are a rare cause of familial FTLD and may be specific to the Danish pedigree. PMID: 16431024
  23. This studyidentified mutations (Q206H; I29V) in two patients with non-SOD1 ALS. PMID: 16807408
  24. CHMP2B mutations are not a cause of dementia in Dutch patients with familial and sporadic frontotemporal dementia. PMID: 16941655
  25. CHMP2B can be excluded as a susceptibility gene conferring risk to sporadic forms of frontotemporal dementia. PMID: 16979267
  26. These data suggest that C-truncating mutations in CHMP2B might underlie the pathogenic mechanism in frontotemporal lobar degeneration. PMID: 17956895
  27. data indicates that CHMP2B mutations are a rare cause of ALS, and no mutations were found in classic ALS phenotypes. PMID: 18270236
  28. These data suggest that SgIII, DMT-1 and HNP-1 are implicated in cell-mediated LDL oxidation. PMID: 19150442
  29. The specificity of DMT1 inhibition by 4 molecules in a cell line is reported. PMID: 19179627
  30. finding suggests that mutations in CHMP2B have widespread effects throughout the brain, leading to a neuro-anatomical signature distinct from other diseases in the frontotemporal lobar degeneration spectrum PMID: 19202337
  31. Divalent metal transporter 1 (DMT1) regulation by Ndfip1 prevents metal toxicity in human neurons. PMID: 19706893

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Involvement in disease Frontotemporal dementia, chromosome 3-linked (FTD3); Amyotrophic lateral sclerosis 17 (ALS17)
Subcellular Location Cytoplasm, cytosol. Late endosome membrane; Peripheral membrane protein.
Protein Families SNF7 family
Tissue Specificity Widely expressed. Expressed in brain, heart, skeletal muscle, spleen, kidney, liver, small intestine, pancreas, lung, placenta and leukocytes. In brain, it is expressed in cerebellum, cerebral cortex, medulla, spinal chord, occipital lobe, frontal lobe, t
Database Links

HGNC: 24537

OMIM: 600795

KEGG: hsa:25978

STRING: 9606.ENSP00000263780

UniGene: Hs.476930

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