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CD82 cell lysate

Human CD82 HEK293 Overexpression Lysate

Gene Names
CD82; R2; 4F9; C33; IA4; ST6; GR15; KAI1; SAR2; TSPAN27
Applications
Western Blot
Synonyms
CD82; Human CD82 HEK293 Overexpression Lysate; Human CD82/KAI-1 HEK293 Cell Lysate (WB positive control); CD82 molecule; Human 4F9 Overexpression Lysate; Human C33 Overexpression Lysate; Human GR15 Overexpression Lysate; Human IA4 Overexpression Lysate; Human KAI-1 Overexpression Lysate; Human KAI1 Overexpression Lysate; Human R2 Overexpression Lysate; Human SAR2 Overexpression Lysate; Human ST6 Overexpression Lysate; Human TSPAN27 Overexpression Lysate; CD82 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
129aa
Sequence
Gly111-Leu228
Applicable Applications for CD82 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 second extracellular domain of human CD82 (P27701-1) (Gly 111-Leu 228) was fused with a polyhistidine tag at the C-terminus and a signal peptide at the N-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 CD82 cell lysate
CD82, also known as KAI-1, structurally belongs to tetraspanin family while categorised as metastasis suppressor gene on functional grounds. KAI1/CD82 is localized on cell membrane and form interactions with other tetraspanins, integrins and chemokines which are respectively responsible for cell migration, adhesion and signalling. Downregulation of CD82 expression is associated with the advanced stages of many human cancers and correlates with the acquisition of metastatic potential. Recent studies suggest that complex mechanisms underlie CD82 loss of function, including altered transcriptional regulation, splice variant production and post-translational protein modifications, and indicate a central role for CD82 in controlling metastasis as a 'molecular facilitator'. The loss of KAI1/CD82 expression in invasive and metastatic cancers is due to a complex, epigenetic mechanism that probably involves transcription factors such as NFkappaB, p53, and beta-catenin. A loss of KAI1 expression is also associated with the advanced stages of many human malignancies and results in the acquisition of invasive and metastatic capabilities by tumour cells. Thus, KAI1/CD82 is regarded as a wide-spectrum tumor metastasis suppressor.

This Human CD82 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of CD82 protein from the overexpression lysate was verified.
References
Malik FA, et al. (2009) KAI-1/CD82, the molecule and clinical implication in cancer and cancer metastasis. Histol Histopathol. 24(4): 519-30.Liu WM, et al. (2006) KAI1/CD82, a tumor metastasis suppressor. Cancer Lett. 240(2): 183-94.Tonoli H, et al. (2006) CD82 metastasis suppressor gene: a potential target for new therapeutics? Trends Mol Med. 11(12): 563-70.Jackson P, et al. (2005) KAI1 tetraspanin and metastasis suppressor. Int J Biochem Cell Biol. 37(3): 530-4.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
26,818 Da
NCBI Official Full Name
CD82 antigen isoform 1
NCBI Official Synonym Full Names
CD82 molecule
NCBI Official Symbol
CD82
NCBI Official Synonym Symbols
R2; 4F9; C33; IA4; ST6; GR15; KAI1; SAR2; TSPAN27
NCBI Protein Information
CD82 antigen; tspan-27; C33 antigen; tetraspanin-27; inducible membrane protein R2; metastasis suppressor Kangai-1; kangai 1 (suppression of tumorigenicity 6, prostate; CD82 antigen (R2 leukocyte antigen, antigen detected by monoclonal and antibody IA4))
UniProt Protein Name
CD82 antigen
Protein Family
UniProt Gene Name
CD82
UniProt Synonym Gene Names
KAI1; SAR2; ST6; TSPAN27; Tspan-27
UniProt Entry Name
CD82_HUMAN

NCBI Description

This metastasis suppressor gene product is a membrane glycoprotein that is a member of the transmembrane 4 superfamily. Expression of this gene has been shown to be downregulated in tumor progression of human cancers and can be activated by p53 through a consensus binding sequence in the promoter. Its expression and that of p53 are strongly correlated, and the loss of expression of these two proteins is associated with poor survival for prostate cancer patients. Two alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Uniprot Description

CD82: a widespread transmembrane protein of the tetraspanin family. A metastasis-suppressor whose decreased expression may be involved in malignant progression. Suppresses tumor metastasis of many cancers including cancers of the prostate, bladder, colon, cervix, liver, and lung (NSCLC). It is a target of estrogen receptor-mediated gene repression and is downregulated in primary human breast cancer. May be a prognostic marker for lung cancer and tumor metastatic potential. Interacts with cell surface proteins including integrins, cadherins, CD4, CD8, IGSF8. Modulates EGFR signaling. May suppress invasion by inhibiting integrin-dependent crosstalk with c-Met receptor and Src kinases. Its regulation of c-Met signaling apparently affects cancer cell migration.

Protein type: Cell surface; Membrane protein, multi-pass; Membrane protein, integral

Chromosomal Location of Human Ortholog: 11p11.2

Cellular Component: integral to plasma membrane; plasma membrane

Molecular Function: protein binding

Disease: Prostate Cancer

Research Articles on CD82

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Product Notes

The CD82 cd82 (Catalog #AAA8114943) 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 129aa. AAA Biotech's CD82 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 CD82 cd82 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: Gly111-Leu 228. It is sometimes possible for the material contained within the vial of "CD82, 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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