@prefix this: . @prefix sub: . @prefix beldoc: . @prefix rdfs: . @prefix rdf: . @prefix xsd: . @prefix dct: . @prefix dce: . @prefix pav: . @prefix np: . @prefix belv: . @prefix prov: . @prefix chebi: . @prefix RNA: . @prefix hgnc: . @prefix geneProductOf: . @prefix species: . @prefix occursIn: . @prefix pubmed: . @prefix orcid: . sub:Head { this: np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo; a np:Nanopublication . } sub:assertion { sub:_1 geneProductOf: hgnc:5013; a RNA: . sub:_2 occursIn: species:9606; rdf:object sub:_1; rdf:predicate belv:increases; rdf:subject chebi:7583; a rdf:Statement . sub:assertion rdfs:label "a(CHEBI:\"nitric oxide\") -> r(HGNC:HMOX1)" . } sub:provenance { beldoc: dce:description "Approximately 61,000 statements."; dce:rights "Copyright (c) 2011-2012, Selventa. All rights reserved."; dce:title "BEL Framework Large Corpus Document"; pav:authoredBy sub:_4; pav:version "1.4" . sub:_3 prov:value " View this table: [in this window] [in a new window] TABLE 1 Summary of the various functions of HO isoforms, their tissue distribution, and gene regulation Maines et al. (1986) were the first to report the identification of a second form of HO from rat liver microsomes, designated HO-2. Only recently, a third isoform, HO-3, was discovered (McCoubrey et al., 1997). HO-1 and HO-2 share little similarity in amino acid sequence (40%), whereas the HO-2 and HO-3 isoform are far more homologous (90%). All HO isoforms are highly conserved among species in evolution. HO is expressed in virtually all life forms; in prokaryotic bacteria as well as in fungi, plants, and humans, regulating a wide spectrum of cellular processes (Terry et al., 2002). The homology between rat, mouse, and human is for HO-1 and HO-2 proteins higher than 80% and 90%, respectively. Under normal physiological conditions, most cells express low or undetectable levels of HO-1 protein, whereas HO-2 proteins are constitutively expressed. HO-3 protein expression awaits further characterization. HO-2 transcription is only up-regulated by few agents, such as opiates and adrenal glucocorticoids (Li and David Clark, 2000; Liu et al., 2000). HO-1 gene expression is highly inducible by more diverse stimuli than any other enzyme described to date (Maines, 1997) and involves a multitude of signaling pathways (Table 2) (Immenschuh and Ramadori, 2000). HO-1 expression is mainly regulated at the transcriptional level. View this table: [in this window] [in a new window] TABLE 2 Selection of different inducers of HO-1 gene expression "; prov:wasQuotedFrom pubmed:12869663 . sub:_4 rdfs:label "Selventa" . sub:assertion prov:hadPrimarySource pubmed:12869663; prov:wasDerivedFrom beldoc:, sub:_3 . } sub:pubinfo { this: dct:created "2014-07-03T14:30:14.797+02:00"^^xsd:dateTime; pav:createdBy orcid:0000-0001-6818-334X, orcid:0000-0002-1267-0234 . }