Recombinant Human Malignant T-cell-amplified sequence 1 (MCTS1)

Uniprot Id

Q9ULC4

Target Species

Human

Target Name

MCTS1

Target Full Name

Malignant T-cell-amplified sequence 1

Target Function

Anti-oncogene that plays a role in cell cycle regulation; decreases cell doubling time and anchorage-dependent growth; shortens the duration of G1 transit time and G1/S transition. When constitutively expressed, increases CDK4 and CDK6 kinases activity and CCND1/cyclin D1 protein level, as well as G1 cyclin/CDK complex formation. Involved in translation initiation; promotes recruitment of aminoacetyled initiator tRNA to P site of 40S ribosomes. Can promote release of deacylated tRNA and mRNA from recycled 40S subunits following ABCE1-mediated dissociation of post-termination ribosomal complexes into subunits. Plays a role as translation enhancer; recruits the density-regulated protein/DENR and binds to the cap complex of the 5'-terminus of mRNAs, subsequently altering the mRNA translation profile; up-regulates protein levels of BCL2L2, TFDP1, MRE11, CCND1 and E2F1, while mRNA levels remains constant. Hyperactivates DNA damage signaling pathway; increased gamma-irradiation-induced phosphorylation of histone H2AX, and induces damage foci formation. Increases the overall number of chromosomal abnormalities such as larger chromosomes formation and multiple chromosomal fusions when overexpressed in gamma-irradiated cells. May play a role in promoting lymphoid tumor development: lymphoid cell lines overexpressing MCTS1 exhibit increased growth rates and display increased protection against apoptosis. May contribute to the pathogenesis and progression of breast cancer via promotion of angiogenesis through the decline of inhibitory THBS1/thrombospondin-1, and inhibition of apoptosis. Involved in the process of proteasome degradation to down-regulate Tumor suppressor p53/TP53 in breast cancer cell; Positively regulates phosphorylation of MAPK1 and MAPK3. Involved in translation initiation; promotes aminoacetyled initiator tRNA to P site of 40S ribosomes. Can promote release of deacylated tRNA and mRNA from recycled 40S subunits following ABCE1-mediated dissociation of post-termination ribosomal complexes into subunits.

Target Subcellular Location

Cytoplasm. Note=Nuclear relocalization after DNA damage.

Target Protein Families

MCTS1 family

Target Tissue Specificity

Ubiquitous. Over-expressed in T-cell lymphoid cell lines and in non-Hodgkin lymphoma cell lines as well as in a subset of primary large B-cell lymphomas.

Target Research Area

Cell Cycle

Target Synonyms

FLJ39637; Malignant T cell amplified sequence 1; Malignant T cell-amplified sequence 1; MCT 1; MCT-1; MCT1; MCTS 1; MCTS1; MCTS1_HUMAN; Multiple copies T cell malignancies 1; Multiple copies T cell malignancies; Multiple copies T-cell malignancies; Oncogene MCT 1; Oncogene MCT1

Target Background

Predicted to enable translation initiation factor activity. Involved in IRES-dependent viral translational initiation; formation of translation preinitiation complex; and ribosome disassembly. Located in cytosol and plasma membrane. Colocalizes with cytosolic small ribosomal subunit.