Search results
Results from the WOW.Com Content Network
Titin is the third most abundant protein in muscle (after myosin and actin), and an adult human contains approximately 0.5 kg of titin. [13] With its length of ~27,000 to ~35,000 amino acids (depending on the splice isoform ), titin is the largest known protein . [ 14 ]
The IUPAC name for Titin. This is the largest known protein and so has the longest chemical name. Written in full, it contains 189,819 letters. [48] Periplanone B: Periplanone B A pheromone of the female American cockroach. Thebacon: Thebacon Dihydrocodeinone enol acetate, an opioid analgesic or antitussive. [citation needed]
The protein complex composed of actin and myosin, contractile proteins, is sometimes referred to as actomyosin.In striated skeletal and cardiac muscle, the actin and myosin filaments each have a specific and constant length in the order of a few micrometers, far less than the length of the elongated muscle cell (up to several centimeters in some skeletal muscle cells). [5]
Regarding the first duality (same symbol and name for gene or protein), the context usually makes the sense clear to scientific readers, and the nomenclatural systems also provide for some specificity by using italic for a symbol when the gene is meant and plain (roman) for when the protein is meant.
Thick filaments consist primarily of the protein myosin, that is responsible for force generation. It is composed of a globular head with both ATP and actin binding sites, and a long tail involved in its polymerization into myosin filaments. Elastic filaments are made up of a giant protein called titin and hold the thick filaments in place.
The giant protein titin (connectin) extends from the Z-line of the sarcomere, where it binds to the thick filament (myosin) system, to the M-band, where it is thought to interact with the thick filaments. Titin (and its splice isoforms) is the biggest single highly elasticated protein found in nature.
The longest recognized systematic name is for the protein titin, at 189,819 letters. [1] While lexicographers regard generic names of chemical compounds as verbal formulae rather than words, [2] for its sheer length the systematic name for titin is often included in longest-word lists.
Nebulin is another protein that can bind to the sides of the actin preventing the attachment of myosin to them. This causes stabilization of the actin limiting muscle contraction. Titin is another protein, but it binds to the myosin rather than the actin microfilament. Titin will help stabilize the contraction and myosin-actin structure.