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The organic compound citrulline is an α-amino acid. [2] Its name is derived from citrullus, the Latin word for watermelon.Although named and described by gastroenterologists since the late 19th century, it was first isolated from watermelon in 1914 by Japanese researchers Yatarō Koga (古賀彌太郎) and Ryō Ōtake (大嶽了) [3] [4] and further codified by Mitsunori Wada of Tokyo ...
The chemical conversion of arginine to citrulline, known as citrullination or deimination. Citrullination or deimination is the conversion of the amino acid arginine in a protein into the amino acid citrulline. Citrulline is not one of the 20 standard amino acids encoded by DNA in the genetic code.
In enzymology, a citrullinase (EC 3.5.1.20) is an enzyme that catalyzes the chemical reaction. L-citrulline + H 2 O L-ornithine + CO 2 + NH 3. Thus, the two substrates of this enzyme are L-citrulline and H 2 O, whereas its 3 products are L-ornithine, CO 2, and NH 3.
Homocitrulline has been suggested as a confounding antigen for rheumatoid arthritis antibodies targeting citrullinated proteins/peptides. [1] Antibodies binding to homocitrulline-containing sequences have been found in rheumatoid arthritis patients' sera [2] [3] More recently, it has been shown that homocitrulline-containing proteins are present in rheumatoid arthritis (RA) joints. [4]
Citrulline Arginine. Anti-citrullinated protein antibodies (ACPAs) are autoantibodies (antibodies to an individual's own proteins) that are directed against peptides and proteins that are citrullinated. They are present in the majority of patients with rheumatoid arthritis. Clinically, cyclic citrullinated peptides (CCP) are frequently used to ...
Citrullinated protein may refer to: Any protein having undergone citrullination; The proteins (often cyclic ones) being the targets of anti-citrullinated protein ...
18416 Ensembl ENSG00000036473 ENSMUSG00000031173 UniProt P00480 P11725 RefSeq (mRNA) NM_000531 NM_008769 RefSeq (protein) NP_000522 NP_032795 Location (UCSC) Chr X: 38.35 – 38.42 Mb Chr X: 10.12 – 10.19 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Ornithine transcarbamylase (OTC) (also called ornithine carbamoyltransferase) is an enzyme (EC 2.1.3.3) that catalyzes the reaction ...
Argininosuccinate synthase or synthetase (ASS; EC 6.3.4.5) is an enzyme that catalyzes the synthesis of argininosuccinate from citrulline and aspartate. In humans, argininosuccinate synthase is encoded by the ASS gene located on chromosome 9. ASS is responsible for the third step of the urea cycle and one of the reactions of the citrulline-NO ...