Biological process: heme binding^{(2011, 2019, 2020, 2025)} metal ion binding⁽²⁰²⁵⁾ electron transfer activity^{(2005, 2006, 2007, 2009, 2013, 2014, 2025)} oxidoreductase activity^{(2019, 2025)} nitrite reductase (NO-forming) activity^{(2020, 2025)} enzyme binding^{(2010, 2025)} nitrate reductase (NADH) activity⁽²⁰²⁵⁾ iron-sulfur cluster binding⁽²⁰²⁵⁾ enzyme activator activity^{(2006, 2025)} 2 iron, 2 sulfur cluster binding⁽²⁰²⁵⁾
± 5 stearoyl-CoA 9-desaturase activity²⁰⁰² quinol-cytochrome-c reductase activity²⁰⁰⁵ oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen²⁰²⁵ cytochrome-b5 reductase activity, acting on NAD(P)H²⁰²⁴ acyl-CoA 6-desaturase activity²⁰²⁵

Molecular function: sterol biosynthetic process^{2013, 2020, 2021} nitric oxide biosynthetic process^{2020, 2025} fatty acid metabolic process^{2004, 2025} lipid metabolic process²⁰²⁵ fatty acid biosynthetic process²⁰²⁵ ergosterol biosynthetic process^{2005, 2006, 2014} xenobiotic metabolic process²⁰²⁰ response to oxidative stress²⁰²⁰ electron transport chain²⁰⁰⁹ very long-chain fatty acid biosynthetic process²⁰¹⁹
± 9 sensory perception of chemical stimulus²⁰²⁵ response to cadmium ion²⁰⁰⁷ proton transmembrane transport²⁰²⁵ post-transcriptional regulation of gene expression²⁰¹⁶ iron ion import across plasma membrane²⁰²⁵ cellular response to xenobiotic stimulus²⁰⁰⁸ alkane biosynthetic process²⁰¹² L-tryptophan catabolic process to kynurenine²⁰²⁵ L-tryptophan catabolic process²⁰²⁵

Cellular component: membrane^{2013, 2014, 2019, 2025} endoplasmic reticulum membrane^{2006, 2007, 2013, 2020, 2021, 2023, 2025} mitochondrial outer membrane^{2013, 2015, 2016, 2019, 2020, 2025} endoplasmic reticulum^{2007, 2009, 2017, 2018, 2020, 2021, 2025} cytosol^{2011, 2018, 2019, 2024, 2025} nitric-oxide synthase complex^{2020, 2025} cytoplasm^{2017, 2025} stromule^{2008, 2025} chloroplast outer membrane^{2008, 2025} mitochondrion^{2007, 2009, 2014, 2018, 2025}
± 14 nuclear envelope^{2017, 2025} plastid²⁰¹⁹ plasma membrane^{2021, 2025} perinuclear region of cytoplasm^{2012, 2025} mitochondrial inner membrane^{2005, 2009} endomembrane system^{2014, 2025} ciliary pocket²⁰¹⁷ plant-type vacuole²⁰²¹ nucleus²⁰¹⁷ mitochondrial membrane²⁰²⁵ food vacuole²⁰¹³ chloroplast thylakoid membrane²⁰²¹ chloroplast membrane²⁰²⁵ chloroplast²⁰¹⁸