UniProt functional annotation for P58772

UniProt code: P58772.

Organism: Oryctolagus cuniculus (Rabbit).
Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Lagomorpha; Leporidae; Oryctolagus.
 
Function: Binds to actin filaments in muscle and non-muscle cells. Plays a central role, in association with the troponin complex, in the calcium dependent regulation of vertebrate striated muscle contraction. Smooth muscle contraction is regulated by interaction with caldesmon. In non-muscle cells is implicated in stabilizing cytoskeleton actin filaments. {ECO:0000250|UniProtKB:P09493}.
 
Subunit: Homodimer (PubMed:23832280). Heterodimer of an alpha (TPM1, TPM3 or TPM4) and a beta (TPM2) chain (By similarity). Interacts with HRG (via the HRR domain); the interaction contributes to the antiangiogenic properties of the histidine/proline-rich region (HRR) of HRG (By similarity). Interacts (via N-terminus) with LMOD2 (via N- terminus) and TMOD1 (via N-terminus) (By similarity). {ECO:0000250|UniProtKB:P04268, ECO:0000250|UniProtKB:P04692, ECO:0000250|UniProtKB:P09493, ECO:0000269|PubMed:23832280}.
Subcellular location: Cytoplasm, cytoskeleton {ECO:0000250|UniProtKB:P04692}. Note=Associates with F-actin stress fibers. {ECO:0000250|UniProtKB:P04692}.
Domain: The molecule is in a coiled coil structure that is formed by 2 polypeptide chains. The sequence exhibits a prominent seven-residues periodicity.
Ptm: Phosphorylated at Ser-283 by DAPK1 in response to oxidative stress and this phosphorylation enhances stress fiber formation in endothelial cells. {ECO:0000250}.
Similarity: Belongs to the tropomyosin family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.