Search results
Results from the WOW.Com Content Network
In biological taxonomy, a domain (/ d ə ˈ m eɪ n / or / d oʊ ˈ m eɪ n /) (Latin: regio [1]), also dominion, [2] superkingdom, realm, or empire, is the highest taxonomic rank of all organisms taken together. It was introduced in the three-domain system of taxonomy devised by Carl Woese, Otto Kandler and Mark Wheelis in 1990. [1]
A Link domain or Link module, also known as Xlink domain (X for extracellular), is a protein domain that binds to hyaluronic acid. [1] It is important in blood cell migration and apoptosis . [ 2 ] The link domain is found in some extracellular proteins in vertebrates such as the hyalectans . [ 3 ]
The WW domain is known to mediate regulatory protein complexes in various signaling networks, including the Hippo signaling pathway. [15] The importance of WW domain-mediated complexes in signaling was underscored by the characterization of genetic syndromes that are caused by loss-of-function point mutations in the WW domain or its cognate ligand.
In molecular biology, a protein domain is a region of a protein's polypeptide chain that is self-stabilizing and that folds independently from the rest. Each domain forms a compact folded three-dimensional structure. Many proteins consist of several domains, and a domain may appear in a variety of different proteins.
The three-domain system adds a level of classification (the domains) "above" the kingdoms present in the previously used five- or six-kingdom systems.This classification system recognizes the fundamental divide between the two prokaryotic groups, insofar as Archaea appear to be more closely related to eukaryotes than they are to other prokaryotes – bacteria-like organisms with no cell nucleus.
Domain (biology), a taxonomic subdivision larger than a kingdom; Domain of discourse, the collection of entities of interest in logical analysis; High-field domain (physics) in semiconductors, also called Böer domain; Knowledge domain, knowledge within a certain discipline, often formalized as a terminology
LIM domains are protein structural domains, composed of two contiguous zinc fingers, separated by a two-amino acid residue hydrophobic linker. [1] The domain name is an acronym of the three genes in which it was first identified (LIN-11, Isl-1 and MEC-3). [ 2 ]
The tree of life. Two domains of life are Bacteria (top branches) and Archaea (bottom branches, including eukaryotes). The two-domain system is a biological classification by which all organisms in the tree of life are classified into two domains, Bacteria and Archaea.