Anti-TRAM1 Antibody Picoband® Fluoro647 Conjugated

TRAM1 (Translocation-Associating Membrane Protein 1), By crosslinking and reconstitution of canine proteoliposomes, followed by microsequencing and PCR screening of canine kidney and HeLa cell cDNA libraries, Gorlich et al. (1992) isolated cDNAs encoding TRAM (translocating chain-associating membrane protein) . The International Radiation Hybrid Mapping Consortium mapped the TRAM gene to chromosome 8. Sequence analysis predicted that human TRAM is a 374-amino acid, 8-pass transmembrane protein that shares 95% amino acid identity with the canine protein. Functional analysis indicated that TRAM influences glycosylation and is stimulatory or required for the translocation of secretory proteins.

A synthetic peptide corresponding to a sequence at the C-terminus of human TRAM1, which shares 89.5% amino acid (aa) sequence identity with mouse and rat TRAM1.

Expressed during myeloid lineage development. Much higher expression in bone marrow neutrophils than in peripheral blood neutrophils (at protein level) . Strongly expressed in the prostate, small intestine and colon and moderately expressed in the bone marrow and stomach. Overexpressed in some pancreatic cancer tissues.

May promote proliferation of pancreatic cancer cells by favoring the transition from the S to G2/M phase. In myeloid leukemic cell lines, inhibits cell growth and induces cell differentiation and apoptosis. May play a role in the inhibition of EIF4EBP1 phosphorylation/deactivation. Facilitates cell adhesion, most probably through interaction with cell surface lectins and cadherin.

1. Gorlich, D., Hartmann, E., Prehn, S., Rapoport, T. A. A protein of the endoplasmic reticulum involved early in polypeptide translocation. Nature 357: 47-52, 1992.