PMID- 9441901 OWN - NLM STAT- MEDLINE DCOM- 19980831 LR - 20161020 IS - 1089-8603 (Print) IS - 1089-8603 (Linking) VI - 1 IP - 4 DP - 1997 Aug TI - An unprocessed pseudogene of inducible nitric oxide synthase gene in human. PG - 294-300 AB - Inducible nitric oxide synthase (iNOS or NOSII) is one of three distinct NOS isoforms in human. The NOSII isoform is expressed in a variety of cells and tissues in response to endotoxins and cytokines. The human genome contains at least two loci for the NOSII gene, one of which (NOSII-1) has previously been assigned to proximal region of the long arm (cen-q11.2 or q11.2-q12) or to pericentric (p11-q11) regions of chromosome 17. The present study, carried out using fluorescence in situ hybridization (FISH) method, shows that a pseudogene gene (NOSII-2) is mapped to chromosome 17q11.2 site. The NOSII-2 sequence contains the exon and intron sequences present in NOSII-1 but with several mutations such as single base substitutions, additions, and deletions. Additionally, the NOSII-2 sequence also contains an incomplete reductase domain which corresponds only to the cofactor binding sites without the oxygenase domain that carry heme and substrate binding sites. NOSII-2, therefore, appears to be an unprocessed pseudogene, which cannot be translated to a functional enzyme because of its incomplete sequences and mutations. FAU - Park, C S AU - Park CS AD - Section of Chemical Pharmacology, Laboratory of Molecular Immunology, NHLBI, National Institutes of Health, Bethesda, Maryland 20892, USA. parkshin@dragon.inha.ac.kr FAU - Lee, H S AU - Lee HS FAU - Lee, H Y AU - Lee HY FAU - Krishna, G AU - Krishna G LA - eng PT - Journal Article PL - United States TA - Nitric Oxide JT - Nitric oxide : biology and chemistry JID - 9709307 RN - 0 (DNA, Complementary) RN - EC 1.14.13.39 (NOS2 protein, human) RN - EC 1.14.13.39 (Nitric Oxide Synthase) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) SB - IM MH - Amino Acid Sequence MH - Base Sequence MH - Chromosomes, Human, Pair 17 MH - DNA, Complementary MH - Humans MH - In Situ Hybridization, Fluorescence MH - Molecular Sequence Data MH - Nitric Oxide Synthase/*genetics MH - Nitric Oxide Synthase Type II MH - *Pseudogenes EDAT- 1997/08/01 00:00 MHDA- 1998/01/27 00:01 CRDT- 1997/08/01 00:00 PHST- 1997/08/01 00:00 [pubmed] PHST- 1998/01/27 00:01 [medline] PHST- 1997/08/01 00:00 [entrez] AID - S1089-8603(97)90138-5 [pii] AID - 10.1006/niox.1997.0138 [doi] PST - ppublish SO - Nitric Oxide. 1997 Aug;1(4):294-300. doi: 10.1006/niox.1997.0138.