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MICB cell lysate

Human MICB HEK293 Overexpression Lysate

Gene Names
MICB; PERB11.2
Applications
Western Blot
Synonyms
MICB; Human MICB HEK293 Overexpression Lysate; Human MICB HEK293 Cell Lysate (WB positive control); MHC class I polypeptide-related sequence B; Human PERB11.2 Overexpression Lysate; MICB cell lysate
Ordering
For Research Use Only!
Host
HEK293 Cells
Form/Format
1x Sample Buffer (1x modified RIPA buffer+1x SDS loading buffer).
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Sequence Positions
524aa
Sequence
Met1-Gly298
Applicable Applications for MICB cell lysate
Western Blot (WB)
Application Notes
WB: Use at an assay dependent dilution.
Species
Human
Recommend Usage
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.2. Re-dissolve the pellet using 200uL pure water and boil for 2-5 min.
Sequence Construction
A DNA sequence encoding the extracellular domain of human MICB (NP_005922.2) (Met 1-Gly 298) was fused with the C-terminal polyhistidine-tagged Fc region of human IgG1 at the C-terminus.
Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors. Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Preparation and Storage
Store at 4 degree C for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80 degree C for up to twelve months. Avoid repeated freeze-thaw cycles.
Samples are stable for up to twelve months from date of receipt.
Related Product Information for MICB cell lysate
MHC class I polypeptide-related sequence B, also known as MICB, is a heavily glycosylated protein serving as a ligand for the type II receptor NKG2D. MICB shares 85% amino acid identity with MICA, a closely related protein, both of which contain three extracellular immunoglobulin-like domains, but without the capacity to bind peptide or interact with beta-2-microglobulin. acting as a stress-induced self-antigen, binding of MICB to the NKG2D receptor activates the cytolytic response of natural killer (NK) cells, CD8+alphabeta T cells, and gammadelta T cells on which the receptor is expressed. MICA/B is minimally expressed on normal cells, but are frequently expressed on epithelial tumors and can be induced by bacterial and viral infections. MICA/B recognition thus is involved in tumor surveillance, viral infections, and autoimmune diseases.

This Human MICB overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of MICB protein from the overexpression lysate was verified.
References
Bauer, S. et al., 1999, Science. 285:727-729. Braud, V.M. et al., 1999, Curr. Opin. Immunol. 11: 100-108. Groh, V. et al., 2001, Nature Immunol. 2: 255-260. Stephens, H., 2001, Trends Immunol. 22: 378-385. Borrego, F. et al., 2002, Mol. Immunol. 38: 637-660. Groh, V. et al., 2002, Nature. 419:734-738.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
Molecular Weight
42,646 Da
NCBI Official Full Name
MHC class I polypeptide-related sequence B isoform 1
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 mic-B antigen; stress inducible class I homolog; MHC class I chain-related protein B; MHC class I-like molecule PERB11.2-IMX
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 #AAA8114106) is a Cell Lysate produced from HEK293 Cells and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is 524aa. AAA Biotech's MICB can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). WB: Use at an assay dependent dilution. Researchers should empirically determine the suitability of the MICB micb for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: Met1-Gly29 8. It is sometimes possible for the material contained within the vial of "MICB, Cell Lysate" 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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