Rabbit anti-Human TTN Polyclonal Antibody

Uniprot Id

Q8WZ42

Target Species

Human

Target Name

TTN

Target Full Name

Titin

Target Function

Key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The size and extensibility of the cross-links are the main determinants of sarcomere extensibility properties of muscle. In non-muscle cells, seems to play a role in chromosome condensation and chromosome segregation during mitosis. Might link the lamina network to chromatin or nuclear actin, or both during interphase.

Target Involvement

Hereditary myopathy with early respiratory failure (HMERF); Cardiomyopathy, familial hypertrophic 9 (CMH9); Cardiomyopathy, dilated 1G (CMD1G); Tardive tibial muscular dystrophy (TMD); Limb-girdle muscular dystrophy 2J (LGMD2J); Salih myopathy (SALMY)

Target Subcellular Location

Cytoplasm. Nucleus.

Target Protein Families

Protein kinase superfamily, CAMK Ser/Thr protein kinase family

Target Tissue Specificity

Isoforms 3, 7 and 8 are expressed in cardiac muscle. Isoform 4 is expressed in vertebrate skeletal muscle. Isoform 6 is expressed in skeletal muscle (at protein level).

Target Research Area

Epigenetics and Nuclear Signaling, Cardiovascular

Target Synonyms

MPRM; Cardiomyopathy dilated 1G (autosomal dominant); CMD1G; CMH 9; CMH9; CMPD 4; CMPD4; Connectin; DKFZp451N061; EOMFC; FLJ26020; FLJ26409; FLJ32040; FLJ34413; FLJ39564; FLJ43066; HMERF; LGMD2J; MU RMS 40.14; MYLK5; Rhabdomyosarcoma antigen; Rhabdomyosarcoma antigen MU RMS 40.14; Rhabdomyosarcoma antigen MU-RMS-40.14; Titin; TITIN_HUMAN; TMD; TTN

Target Background

This gene encodes a large abundant protein of striated muscle. The product of this gene is divided into two regions, a N-terminal I-band and a C-terminal A-band. The I-band, which is the elastic part of the molecule, contains two regions of tandem immunoglobulin domains on either side of a PEVK region that is rich in proline, glutamate, valine and lysine. The A-band, which is thought to act as a protein-ruler, contains a mixture of immunoglobulin and fibronectin repeats, and possesses kinase activity. An N-terminal Z-disc region and a C-terminal M-line region bind to the Z-line and M-line of the sarcomere, respectively, so that a single titin molecule spans half the length of a sarcomere. Titin also contains binding sites for muscle associated proteins so it serves as an adhesion template for the assembly of contractile machinery in muscle cells. It has also been identified as a structural protein for chromosomes. Alternative splicing of this gene results in multiple transcript variants. Considerable variability exists in the I-band, the M-line and the Z-disc regions of titin. Variability in the I-band region contributes to the differences in elasticity of different titin isoforms and, therefore, to the differences in elasticity of different muscle types. Mutations in this gene are associated with familial hypertrophic cardiomyopathy 9, and autoantibodies to titin are produced in patients with the autoimmune disease scleroderma.