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- Table of Contents
Facts about Tropomyosin alpha-1 chain.
Smooth muscle contraction is regulated by interaction with caldesmon. In non-muscle cells is implicated in stabilizing cytoskeleton actin filaments.
Human | |
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Gene Name: | TPM1 |
Uniprot: | P09493 |
Entrez: | 7168 |
Belongs to: |
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tropomyosin family |
alpha tropomyosin; alpha-tropomyosin; C15orf13; cardiomyopathy, hypertrophic 3; chromosome 15 open reading frame 13; CMD1Y; CMH3; HTM-alpha; sarcomeric tropomyosin kappa; TMSA; tropomyosin 1 (alpha) isoform 1; tropomyosin 1 (alpha) isoform 2; tropomyosin 1 (alpha) isoform 3; tropomyosin 1 (alpha) isoform 4; tropomyosin 1 (alpha) isoform 5; tropomyosin 1 (alpha) isoform 6; tropomyosin 1 (alpha) isoform 7; tropomyosin 1 (alpha); tropomyosin alpha-1 chain; tropomyosin-1
Mass (kDA):
32.709 kDA
Human | |
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Location: | 15q22.2 |
Sequence: | 15; NC_000015.10 (63042698..63071915) |
Detected in primary breast cancer tissues but undetectable in normal breast tissues in Sudanese patients. Isoform 1 is expressed in adult and fetal skeletal muscle and cardiac tissues, with higher expression levels in the cardiac tissues. Isoform 10 is expressed in adult and fetal cardiac tissues, but not in skeletal muscle.
Cytoplasm, cytoskeleton. Associates with F-actin stress fibers.
PMID: 3548719 by Mische S.M., et al. Relation of streptococcal M protein with human and rabbit tropomyosin: the complete amino acid sequence of human cardiac alpha tropomyosin, a highly conserved contractile protein.
PMID: 3336357 by Lin C.-S., et al. Cloning and characterization of a cDNA encoding transformation- sensitive tropomyosin isoform 3 from tumorigenic human fibroblasts.