Peptide transporter TAP1 is also called Antigen peptide transporter 1 (APT1), ATP-binding cassette sub-family B member 2 (ABCB2), Peptide supply factor 1 (PSF1), Peptide transporter PSF1 (PSF-1), Peptide transporter involved in antigen processing 1, and Really interesting new gene 4 protein (RING4). TAP1 is involved in the transport of antigens from the cytoplasm to the endoplasmic reticulum for association with MHC class I molecules as well as MHC class I folding. TAP1 is inhibited herpes simplex virus ICP47 protein, human cytomegalovirus US6 glycoprotein, human adenovirus E3-19K glycoprotein, and is down-regulated by human Epstein-Barr virus vIL-10 protein. TAP1 mutations can be a cause of Bare lymphocyte syndrome 1 (BLS1).

~65 kDa observed. Uniprot describes a molecular weight of ~87 kDa However, this protein may be observed at ~65 kDa (Koch, J., et al. (2006). FEBS Lett. 580(17):4091-4096.).

Epitope: This antibody recognizes the ADAPE amino acid residues within the CYWAMVQAPADAPE sequence of human TAP1 (located at the C-terminus).

Linear peptide corresponding to the CYWAMVQAPADAPE sequence of human TAP1.

Detect Antigen peptide transporter 1 using this mouse monoclonal antibody, Anti-TAP1 Antibody, clone mAb 148.3 validated for use in western blotting, IP, Immunofluorescence & Activity Assay.

Western Blotting Analysis: A representative lot from an independent laboratory detected TAP1 in transiently transfected HeLa cells (Hulpke, S., et al. (2012). FASEB J. 26(12):5071-5080.).

Western Blotting Analysis: A representative lot from an independent laboratory detected TAP1 in microsomes of baculovirus-infected SF9 cells, which express wild type or select mutations of TAP1 (Chen, M., et al. (2004). J Biol Chem. 279(44):46073-46081.).

Western Blotting Analysis: A representative lot from an independent laboratory detected TAP1 in SF9 cells infected with recombinant baculovirus containing TAP1 gene constructs (Meyer, T. H., et al. (1994). FEBS Lett. 351(3):443-447.).

Immunofluorescence Analysis: A representative lot from an independent laboratory detected TAP1 in HeLa cells contransfected with wild type TAP1 and TAP2 (Hulpke, S., et al. (2012). Cell Mol Life Sci. 69(19):3317-3327.).

Immunofluorescence Analysis: A representative lot from an independent laboratory detected TAP1 in SF9 cells infected with rBV-TAP1/rBV-TAP2 (Meyer, T. H., et al. (1994). FEBS Lett. 351(3):443-447.).

Immunoprecipitation Analysis: A representative lot from an independent laboratory immunoprecipitated TAP1 from SF9 cells infected with rBV-TAP1/rBV-TAP2 (Meyer, T. H., et al. (1994). FEBS Lett. 351(3):443-447.).

Activity Assay Analysis: This antibody inhibits TAP-specific peptide transport (Plewnia, G., et al. (2007). J Mol Biol. 369(1):95-107.).

Format: Purified

Purified mouse monoclonal IgG1κ supernatant in buffer containing PBS without preservatives.

Evaluated by Western Blotting in untreated and Interferon-gamma (IFN-g) treated HeLa cell lysate.

Western Blotting Analysis: 0.5 µg/mL of this antibody detected TAP1 in 10 µg of Interferon-gamma (IFN-g) treated HeLa cell lysate.

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.