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MHC class I chain-related gene B Active Protein | MICB active protein

Recombinant Human MHC class I chain-related gene B

Gene Names
MICB; PERB11.2
Purity
Greater than 95.0% as determined by(a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Synonyms
MHC class I chain-related gene B; Recombinant Human MHC class I chain-related gene B; MICB Human; MHC Class-I chain related gene B Human Recombinant; MHC class I polypeptide-related sequence B; MIC-B; MICB; PERB11.2; MICB active protein
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For Research Use Only!
Host
E Coli
Purity/Purification
Greater than 95.0% as determined by(a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Form/Format
Lyophilized from a concentrated (1mg/ml) solution containing no additives.
Sterile Filtered White lyophilized (freeze-dried) powder.
Solubility
It is recommended to reconstitute the lyophilized MICB in sterile 18M Omega -cm H2O not less than 100 ug/ml, which can then be further diluted to other aqueous solutions.
Biological Activity
Measured by its ability to bind MICB antibody in ELISA.
Preparation and Storage
Lyophilized MICB although stable at room temperature for 3 weeks, should be stored desiccated below -18 degree C. Upon reconstitution MICB should be stored at 4 degree C between 2-7 days and for future use below -18 degree C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Related Product Information for MICB active protein
Description: MICB Human Recombinant produced in E Coli is a single, non-glycosylated polypeptide chain containing 326 amino acids and having a molecular mass of 37kDa. The sequence contains the extracellular domain of the mature human MICB (amino acid residues Ala23 Tyr312). The MICB is purified by proprietary chromatographic techniques.

Introduction: MICB (MHC class I chain-related gene B) is a transmembrane glycoprotein that functions as a ligand for human NKG2D type II receptor. A closely related protein, MICA, shares 85% amino acid identity with MICB. These 2 proteins are distantly related to the MHC class I proteins. MICA and MICB (MICA/B) possess three extracellular immunoglobulin-like domains, but have no capacity to bind peptide or interact with ?2-microglobulin. The genes encoding MICA/B are found within the major histocompatibility complex on human chromosome 6. The MICB locus is polymorphic with more than 15 recognized human alleles. MICA/B are minimally expressed on normal cells, but are frequently expressed on epithelial tumors and can be induced by bacterial and viral infections. MICA/B are ligands for NKG2D, an activating receptor expressed on NK cells, NKT cells, T cells, and CD8+ T cells. Recognition of MICA/B by NKG2D results in the activation of cytolytic activity and/or cytokine production by these effector cells. MICA/B recognition is involved in tumor surveillance, viral infections, and autoimmune diseases. The release of soluble forms of MICA/B from tumors down-regulates NKG2D surface expression on effector cells resulting in the impairment of anti-tumor immune response.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
Molecular Weight
4,287 Da
NCBI Official Full Name
MHC class I polypeptide-related sequence B isoform 2
NCBI Official Synonym Full Names
MHC class I polypeptide-related sequence B
NCBI Official Symbol
MICB
NCBI Official Synonym Symbols
PERB11.2
NCBI Protein Information
MHC class I polypeptide-related sequence B; MHC class I chain-related protein B; MHC class I mic-B antigen; MHC class I-like molecule PERB11.2-IMX; MICB; stress inducible class I homolog
UniProt Protein Name
MHC class I polypeptide-related sequence B
UniProt Gene Name
MICB
UniProt Synonym Gene Names
MIC-B
UniProt Entry Name
MICB_HUMAN

NCBI Description

This gene encodes a heavily glycosylated protein which is a ligand for the NKG2D type II receptor. Binding of the ligand activates the cytolytic response of natural killer (NK) cells, CD8 alphabeta T cells, and gammadelta T cells which express the receptor. This protein is stress-induced and is similar to MHC class I molecules; however, it does not associate with beta-2-microglobulin or bind peptides. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

Uniprot Description

MICB: Seems to have no role in antigen presentation. Acts as a stress-induced self-antigen that is recognized by gamma delta T cells. Ligand for the KLRK1/NKG2D receptor. Binding to KLRK1 leads to cell lysis. Genetic variations in MICA are a cause of susceptibility to rheumatoid arthritis (RA). It is a systemic inflammatory disease with autoimmune features and a complex genetic component. It primarily affects the joints and is characterized by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. The MICB*004 allele is associated with rheumatoid arthritis. Genetic variation in MICB is associated with cytomegalovirus and herpes simplex virus I seropositivity and this may be associated with schizophrenia risk. Belongs to the MHC class I family. MIC subfamily. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral

Chromosomal Location of Human Ortholog: 6p21.3

Cellular Component: cell surface; integral to membrane; plasma membrane

Molecular Function: beta-2-microglobulin binding; antigen binding; natural killer cell lectin-like receptor binding

Biological Process: antigen processing and presentation; regulation of immune response; response to retinoic acid; viral reproduction; response to heat; natural killer cell mediated cytotoxicity; cytolysis; immune response-activating cell surface receptor signaling pathway; negative regulation of defense response to virus by host; response to oxidative stress; gamma-delta T cell activation; T cell mediated cytotoxicity

Research Articles on MICB

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Product Notes

The MICB micb (Catalog #AAA142923) is an Active Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. It is sometimes possible for the material contained within the vial of "MHC class I chain-related gene B, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.
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