Cysteine and Glycine-Rich Protein 3 (CSRP3) Antibody – Rabbit Polyclonal

This gene encodes a member of the CSRP family of LIM domain proteins, which may be involved in regulatory processes important for development and cellular differentiation. The LIM/double zinc-finger motif found in this protein is found in a group of proteins with critical functions in gene regulation, cell growth, and somatic differentiation. Mutations in this gene are thought to cause heritable forms of hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM) in humans. Alternatively spliced transcript variants with different 5' UTR, but encoding the same protein, have been found for this gene. [provided by RefSeq, Jul 2008]

CSRP3: Positive regulator of myogenesis. Plays a crucial and specific role in the organization of cytosolic structures in cardiomyocytes. Could play a role in mechanical stretch sensing. May be a scaffold protein that promotes the assembly of interacting proteins at Z-line structures. It is essential for calcineurin anchorage to the Z line. Required for stress-induced calcineurin-NFAT activation. Defects in CSRP3 are the cause of cardiomyopathy dilated type 1M (CMD1M). Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death. Defects in CSRP3 are the cause of familial hypertrophic cardiomyopathy type 12 (CMH12). Familial hypertrophic cardiomyopathy is a hereditary heart disorder characterized by ventricular hypertrophy, which is usually asymmetric and often involves the interventricular septum. The symptoms include dyspnea, syncope, collapse, palpitations, and chest pain. They can be readily provoked by exercise. The disorder has inter- and intrafamilial variability ranging from benign to malignant forms with high risk of cardiac failure and sudden cardiac death.

Protein type: Transcription regulation

Chromosomal Location of Human Ortholog: 11p15.1

Cellular Component: cytoskeleton; Z disc; nucleus

Molecular Function: actinin binding; protein binding; telethonin binding; zinc ion binding; structural constituent of muscle

Biological Process: cellular calcium ion homeostasis; cardiac muscle development; skeletal muscle development; protein localization in organelle; positive regulation of transcription from RNA polymerase II promoter; cardiac myofibril assembly; regulation of the force of heart contraction; cardiac muscle contraction

Disease: Cardiomyopathy, Familial Hypertrophic, 12; Cardiomyopathy, Dilated, 1m