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CD1B cell lysate

Human CD1B HEK293 Overexpression Lysate

Gene Names
CD1B; R1; CD1; CD1A
Applications
Western Blot
Synonyms
CD1B; Human CD1B HEK293 Overexpression Lysate; Human CD1B/CD1A HEK293 Cell Lysate (WB positive control); CD1b molecule; Human CD1 Overexpression Lysate; Human CD1A Overexpression Lysate; Human CD1B Overexpression Lysate; Human R1 Overexpression Lysate; CD1B 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
527aa
Sequence
Met1-Ser303
Applicable Applications for CD1B 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 human CD1B (NP_001755) (Met1-Ser 303) was expressed, fused with the 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 CD1B cell lysate
CD1B contains 1 Ig-like (immunoglobulin-like) domain and belongs to the CD1 family. CD1 family members are transmembrane glycoproteins, which are structurally related to the major histocompatibility complex (MHC) proteins and form heterodimers with beta-2-microglobulin. During protein synthesis and maturation, they bind endogenous lipids that are replaced by lipid or glycolipid antigens when the proteins are internalized and pass through endosomes, before trafficking back to the cell surface. CD1B localizes to late endosomes and lysosomes via a tyrosine-based motif in the cytoplasmic tail, and requires vesicular acidification to bind lipid antigens.. It is expressed on cortical thymocytes, epidermal Langerhans cells, dendritic cells, on certain T-cell leukemias, and in various other tissues. CD1B is an antigen-presenting protein that binds self and non-self lipid and glycolipid antigens and presents them to T-cell receptors on natural killer T-cells.

This Human CD1B overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of CD1B protein from the overexpression lysate was verified.
References
Coventry B, et al. (2004) CD1a in human cancers: a new role for an old molecule. Trends Immunol. 25 (5):242-8.Martin LH, et al. (1988) Structure and expression of the human thymocyte antigens CD1a, CD1b, and CD1c. Proc Natl Acad Sci. 84(24):9189-93.Aruffo A, et al. (1989) Expression of cDNA clones encoding the thymocyte antigens CD1a, b, c demonstrates a hierarchy of exclusion in fibroblasts. J Immunol. 143(5):1723-30.Longley J, et al. (1989) Molecular cloning of CD1a (T6), a human epidermal dendritic cell marker related to class I MHC molecules. J Invest Dermatol. 92(4):628-31.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
910
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
34.2 kDa (310aa) confirmed by MALDI-TOF
NCBI Official Full Name
T-cell surface glycoprotein CD1b
NCBI Official Synonym Full Names
CD1b molecule
NCBI Official Symbol
CD1B
NCBI Official Synonym Symbols
R1; CD1; CD1A
NCBI Protein Information
T-cell surface glycoprotein CD1b
UniProt Protein Name
T-cell surface glycoprotein CD1b
UniProt Gene Name
CD1B
UniProt Entry Name
CD1B_HUMAN

NCBI Description

This gene encodes a member of the CD1 family of transmembrane glycoproteins, which are structurally related to the major histocompatibility complex (MHC) proteins and form heterodimers with beta-2-microglobulin. The CD1 proteins mediate the presentation of primarily lipid and glycolipid antigens of self or microbial origin to T cells. The human genome contains five CD1 family genes organized in a cluster on chromosome 1. The CD1 family members are thought to differ in their cellular localization and specificity for particular lipid ligands. The protein encoded by this gene localizes to late endosomes and lysosomes via a tyrosine-based motif in the cytoplasmic tail, and requires vesicular acidification to bind lipid antigens. [provided by RefSeq, Jul 2008]

Uniprot Description

CD1B: Antigen-presenting protein that binds self and non-self lipid and glycolipid antigens and presents them to T-cell receptors on natural killer T-cells. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral

Chromosomal Location of Human Ortholog: 1q23.1

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

Molecular Function: protein binding; beta-2-microglobulin binding; exogenous lipid antigen binding; endogenous lipid antigen binding

Biological Process: antigen processing and presentation, exogenous lipid antigen via MHC class Ib; immune response

Research Articles on CD1B

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Product Notes

The CD1B cd1b (Catalog #AAA8114792) 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 527aa. AAA Biotech's CD1B 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 CD1B cd1b 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-Ser30 3. It is sometimes possible for the material contained within the vial of "CD1B, 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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