Hemicollin is a specialized protein found in the extracellular matrix of various tissues, including connective tissues and cartilage. Its spelling is derived from the Greek word "hemi," meaning "half," and "collagen," a similar protein. The IPA phonetic transcription of "Hemicollin" is [hɛmɪˈkɑːlɪn]. The /h/ sound at the beginning is followed by a short /e/ sound, pronounced like "eh". The /k/ sound is pronounced with a hard /a/ sound, followed by a short /i/ sound, like "kin." The final syllable has a long /i/ sound, and the emphasis is on the second syllable.
Hemicollin is a term primarily used in the field of biochemistry to denote a specific family of proteins. These proteins belong to the larger category of collagens, which are the main structural components of various connective tissues within organisms.
Collagens, including hemicollins, are characterized by their unique structure, which consists of a triple helix made up of three polypeptide chains twisting around each other. The hemicollin family is particularly distinguished by its specific amino acid composition and arrangement within the triple helix structure. The name "hemicollin" is derived from this unique structural arrangement, where the term "hemi-" refers to the partial distribution of specific amino acids along the length of the polypeptide chains.
Hemicollins play crucial roles in maintaining the integrity and functionality of various tissues, including skin, bone, cartilage, tendons, and blood vessels. They contribute to the mechanical strength of these tissues, providing support and resistance to stretching or tearing forces. Additionally, hemicollins are involved in cell adhesion, signaling, and regulating cellular processes within these tissues.
Given the diverse roles of hemicollins in different tissues, their dysregulation or mutations can lead to various pathological conditions, such as connective tissue disorders or impaired wound healing. Thus, understanding the structure and function of hemicollins is of significant interest in both basic scientific research and clinical applications.
A derivative of gelatin soluble in alcohol.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.