Product Name
TAPA1/CD81 Recombinant Rabbit Monoclonal Antibody [SN206-01] - BSA and Azide free
Antibody Type
Recombinant Rabbit monoclonal Antibody
Immunogen
Synthetic peptide within Human TAPA1 / CD81 aa 161-210 / 236.
Target Molecular Weight
Predicted band size: 26 kDa
Positive Control
PC-12 cell lysate, JAR cell lysate, 293, A549, SH-SY5Y, PC-12, human liver tissue, mouse testis tissue, mouse lung tissue, Jurkat.
Storage Instructions
Store at 2-8℃. Avoid freeze.
Purification Method
Protein A affinity purified.
Function
CD81, also called TAPA-1, is a type III transmembrane protein that is broadly expressed on cells of hematopoietic, neuroectodermal and mesenchymal origin. CD81 is believed to be involved in both cell growth and signal transduction. It can be present as a multimolecular complex in association with CD37 and/or CD53, or on the surface of B cells in association with CD19, CD21 and/or MHC class II antigens.
Background References
1. Gu J et al. Gastric cancer exosomes trigger differentiation of umbilical cord derived mesenchymal stem cells to carcinoma-associated fibroblasts through TGF- /Smad pathway. PLoS One 7:e52465 (2012).
2. Drummond HA et al. Renal inflammation and elevated blood pressure in a mouse model of reduced {beta}-ENaC. Am J Physiol Renal Physiol 301:F443-9 (2011).
Sequence Similarity
Belongs to the tetraspanin (TM4SF) family.
Tissue Specificity
Expressed on B cells (at protein level). Expressed in hepatocytes (at protein level). Expressed in monocytes/macrophages (at protein level). Expressed on both naive and memory CD4-positive T cells (at protein level).
Post-translational Modification
Not glycosylated.; Likely constitutively palmitoylated at low levels. Protein palmitoylation is up-regulated upon coligation of BCR and CD9-C2R-CD81 complexes in lipid rafts.
Subcellular Location
Cell membrane, Basolateral cell membrane.
Synonyms
26 kDa cell surface protein TAPA 1 antibody
26 kDa cell surface protein TAPA-1 antibody
26 kDa cell surface protein TAPA1 antibody
CD 81 antibody
CD81 antibody
CD81 antigen (target of antiproliferative antibody
1) antibody
CD81 antigen antibody
CD81 molecule antibody
CD81_HUMAN antibody
Expand
26 kDa cell surface protein TAPA 1 antibody
26 kDa cell surface protein TAPA-1 antibody
26 kDa cell surface protein TAPA1 antibody
CD 81 antibody
CD81 antibody
CD81 antigen (target of antiproliferative antibody
1) antibody
CD81 antigen antibody
CD81 molecule antibody
CD81_HUMAN antibody
CVID6 antibody
S5.7 antibody
TAPA 1 antibody
TAPA1 antibody
Target of the antiproliferative antibody
1 antibody
Tetraspanin 28 antibody
Tetraspanin-28 antibody
Tetraspanin28 antibody
Tspan 28 antibody
Tspan-28 antibody
Tspan28 antibody
Collapse
-
☑ Knockdown (KD)
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
Western blot analysis of TAPA1/CD81 on different lysates with Rabbit anti-TAPA1/CD81 antibody (ET1611-87) at 1/2,000 dilution.
Lane 1: HCT 116-si NT cell lysate
Lane 2: HCT 116-si TAPA1/CD81 cell lysate
Lysates/proteins at 20 µg/Lane.
Predicted band size: 26 kDa
Observed band size: 25 kDa
Exposure time: 2 minutes; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ET1611-87) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
-
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
ICC staining of TAPA1/CD81 in SH-SY5Y cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with the primary antibody (ET1611-87, 1/50) for 1 hour at room temperature, washed with PBS. Alexa Fluor®488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/1,000 dilution. The nuclear counter stain is DAPI (blue).
-
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
ICC staining of TAPA1/CD81 in PC-12 cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with the primary antibody (ET1611-87, 1/50) for 1 hour at room temperature, washed with PBS. Alexa Fluor®488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/1,000 dilution. The nuclear counter stain is DAPI (blue).
-
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
Immunohistochemical analysis of paraffin-embedded human liver tissue using anti-TAPA1/CD81 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1611-87, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
-
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
Immunohistochemical analysis of paraffin-embedded mouse testis tissue using anti-TAPA1/CD81 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1611-87, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
-
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
Immunohistochemical analysis of paraffin-embedded mouse lung tissue using anti-TAPA1/CD81 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1611-87, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
-
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
Flow cytometric analysis of TAPA1/CD81 was done on Jurkat cells. The cells were fixed, permeabilized and stained with the primary antibody (ET1611-87, 1/50) (red). After incubation of the primary antibody at room temperature for an hour, the cells were stained with a Alexa Fluor 488-conjugated Goat anti-Rabbit IgG Secondary antibody at 1/1000 dilution for 30 minutes.Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
-
This data was developed using ET1611-87, the same antibody clone in a different buffer formulation.
Western blot analysis of TAPA1/CD81 on different lysates with Rabbit anti-TAPA1/CD81 antibody (ET1611-87) at 1/1,000 dilution.
Lane 1: Rat liver tissue lysate
Lysates/proteins at 40 µg/Lane.
Exposure time:1 min 50s; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: ET1611-87, 1/1,000 in 5% NFDM/TBST, overnight at 4 ℃
Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 26 kDa
Observed band size: 26 kDa
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"