Protein: Sphingolipid delta(4)-desaturase/C4-monooxygenase DES2 (EC 1.14.18.5) (EC 1.14.19.17) (Degenerative spermatocyte homolog 2) (Sphingolipid 4-desaturase) (Sphingolipid C4-monooxygenase) (Q8R2F2)
Organism: Mus musculus (Mouse)
Function: Bifunctional enzyme which acts as both a sphingolipid delta(4)-desaturase and a sphingolipid C4-monooxygenase.
Subcellular location: Endoplasmic reticulum membrane {ECO:0000269|PubMed:16571104, ECO:0000305}; Multi-pass membrane protein {ECO:0000269|PubMed:16571104, ECO:0000305}.
Sequence: MGNSAARSDFEWVYSDQPHTQRRKEMLAKYPAIKALMRPDPHIKWTVSGMVLVQVLACWLVRGLSWRWLLFWAYAFGGCINHSLTLAIHDISHNTAFGTSCVSRNRWFAIFANLPIGLPYATSFKKYHVDHHRYLGGDGLDVDIPTNFEGWFFCTPARKLLWLVLQPFFYSLRPLCVNPKVVTRMEILNALVQLAFDVTIFALWGIKPIVYLLGSSLLGLGLHPISGHFVAEHYMFLKGHETYSYYGPLNWITFNVGYHMEHHDFPSIPGYYLPLVRKIAPEYYDHLPQHHSWVKVLWDFVFEDSMGPYSRVKRKCKLAKDHL
InterPro domains: - IPR011388: Sphingolipid delta4-desaturase (family) [1-323]
- IPR005804: Fatty acid desaturase domain (domain) [67-290]
- IPR013866: Sphingolipid delta4-desaturase, N-terminal (domain) [5-43]
Interaction partners: - Ceramide synthase 4
- 3-ketodihydrosphingosine reductase
- Ceramide glucosyltransferase
- Ceramide synthase 5
- Ceramide synthase 2
- Sphingomyelin phosphodiesterase 4
- Alkaline ceramidase 1
- Ceramide synthase 3
- Phosphatidylcholine:ceramide cholinephosphotransferase 2
- Alkaline ceramidase 2
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0003824 (catalytic activity), GO:0016853 (isomerase activity), GO:0016491 (oxidoreductase activity), GO:0016859 (cis-trans isomerase activity), GO:0016705 (oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen), GO:0016717 (oxidoreductase activity, acting on paired donors, with oxidation of a pair of donors resulting in the reduction of molecular oxygen to two molecules of water)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:1901576 (organic substance biosynthetic process), GO:1901564 (organonitrogen compound metabolic process), GO:0006629 (lipid metabolic process), GO:0044255 (cellular lipid metabolic process), GO:0044249 (cellular biosynthetic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:0043603 (amide metabolic process), GO:1901566 (organonitrogen compound biosynthetic process), GO:0006643 (membrane lipid metabolic process), GO:0006672 (ceramide metabolic process), GO:0043604 (amide biosynthetic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0046467 (membrane lipid biosynthetic process), GO:0008610 (lipid biosynthetic process), GO:0006665 (sphingolipid metabolic process), GO:0046513 (ceramide biosynthetic process), GO:0030148 (sphingolipid biosynthetic process)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0016020 (membrane), GO:0005737 (cytoplasm), GO:0012505 (endomembrane system), GO:0031984 (organelle subcompartment), GO:0042175 (nuclear outer membrane-endoplasmic reticulum membrane network), GO:0031090 (organelle membrane), GO:0005783 (endoplasmic reticulum), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0098827 (endoplasmic reticulum subcompartment), GO:0043231 (intracellular membrane-bounded organelle), GO:0005789 (endoplasmic reticulum membrane)