Protons. Hydrogen Ion . Ion, Hydrogen . Ions, Hydrogen . Proton . Hydrogen Ions . Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom, i.e., the hydrogen ion. . 0.59
Protoporphyrinogen Oxidase. Protoporphyrinogen Dehydrogenase . Protoporphyrinogen IX Oxidase . Protoporphyrinogenase . Protox . Dehydrogenase, Protoporphyrinogen . Oxidase, Protoporphyrinogen . Oxidase, Protoporphyrinogen IX . A membrane-bound flavoenzyme that catalyzes the oxygen-dependent aromatization of protoporphyrinogen IX (Protogen) to protoporphyrin IX (Proto IX). It is the last enzyme of the common branch of the HEME and CHLOROPHYLL pathways in plants, and is the molecular target of diphenyl ether-type herbicides. VARIEGATE PORPHYRIA is an autosomal dominant disorder associated with deficiency of protoporphyrinogen oxidase. . 0.58
Rectocele. Proctocele . Proctoceles . Rectoceles . Herniation of the RECTUM into the VAGINA. . 0.58
Protein Subunits. Protein Subunit . Protomer . Subunit, Protein . Subunits, Protein . Protomers . Single chains of amino acids that are the units of multimeric PROTEINS. Multimeric proteins can be composed of identical or non-identical subunits. One or more monomeric subunits may compose a protomer which itself is a subunit structure of a larger assembly. . 0.52
Procollagen. Procollagen Type M . Protocollagen . A biosynthetic precursor of collagen containing additional amino acid sequences at the amino-terminal and carboxyl-terminal ends of the polypeptide chains. . 0.49
