The gene information section lists the gene name (HUGO Gene Nomenclature Committee (HGNC) name if available), any approved gene synonyms, Ensembl gene description, and the Entrez gene summary from the National Center for Biotechnology Information.
The chromosomal and cytoband location of the gene according to Ensembl is reported together with the Ensembl gene identifier and Ensembl database version. The Entrez gene identifier for the gene is also given. If any of the protein products of the gene is linked to a UniProt KB/SWISS-PROT entry, links to the UniProt and the neXtProt databases for these proteins are displayed.
Gene name
TTN (HGNC Symbol)
Synonyms
CMD1G, CMH9, CMPD4, FLJ32040, LGMD2J, MYLK5, TMD
Description
Titin (HGNC Symbol)
Entrez gene summary
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. [provided by RefSeq, Feb 2012]
The protein view displays protein features. The tabs at the top of the protein view section can be used to switch between the different splice variants encoded by this gene. The mouse over function displays additional data for the features in the protein view.
At the top of the protein view, the maximum percent sequence identity of the protein to all other proteins from other human genes is shown, using a sliding window of 10 aa residues (HsID 10) or 50 aa residues (HsID 50) (read more).
If a signal peptide is predicted by a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0 and Phobius (turquoise) and/or transmembrane regions (orange) are predicted by MDM, these are displayed.
Common (purple) and unique (grey) regions between alternative processed transcripts from the same gene are also displayed (read more), and at the bottom of the protein view is the protein scale.
The protein information section displays the alternative protein-coding transcripts (splice variants) encoded by this gene, according to the Ensembl database.
The ENSP identifier links to the Ensembl website for that protein, and the ENST identifier links to the Ensembl website for that transcript. The data in the UniProt column can be expanded to show links to all matching UniProt identifiers for this protein.
The protein classes to which this protein has been assigned are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The Gene Ontology terms assigned to this protein are listed if expanding the Gene ontology column.
The length of the protein (amino acid residues) (according to Ensembl), molecular mass (kDalton), predicted signal peptide (according to a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0 and Phobius and predicted transmembrane region(s) (according to MDM) are also reported.
Transferases CAMK Ser/Thr protein kinases SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins Enzymes ENZYME proteins Kinases Plasma proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transferases CAMK Ser/Thr protein kinases Enzymes ENZYME proteins Kinases Plasma proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transferases CAMK Ser/Thr protein kinases Enzymes ENZYME proteins Kinases Plasma proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transferases CAMK Ser/Thr protein kinases SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins Enzymes ENZYME proteins Kinases Plasma proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transferases CAMK Ser/Thr protein kinases SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins Enzymes ENZYME proteins Kinases Plasma proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transferases CAMK Ser/Thr protein kinases Enzymes ENZYME proteins Kinases Plasma proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transferases CAMK Ser/Thr protein kinases Enzymes ENZYME proteins Kinases Plasma proteins Disease related genes Potential drug targets Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)