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Protein

Sphingolipid delta(4)-desaturase DES1

Gene

Degs1

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Has sphingolipid-delta-4-desaturase activity. Converts D-erythro-sphinganine to D-erythro-sphingosine (E-sphing-4-enine).1 Publication

Catalytic activityi

A dihydroceramide + 2 ferrocytochrome b5 + O2 + 2 H+ = a (4E)-sphing-4-enine ceramide + 2 ferricytochrome b5 + 2 H2O.1 Publication

GO - Molecular functioni

  • sphingolipid delta-4 desaturase activity Source: MGI

GO - Biological processi

  • ceramide biosynthetic process Source: MGI
  • fatty acid biosynthetic process Source: UniProtKB-KW
  • positive regulation of apoptotic process Source: MGI

Keywordsi

Molecular functionOxidoreductase
Biological processFatty acid biosynthesis, Fatty acid metabolism, Lipid biosynthesis, Lipid metabolism

Enzyme and pathway databases

ReactomeiR-MMU-1660661. Sphingolipid de novo biosynthesis.
R-MMU-6798695. Neutrophil degranulation.

Chemistry databases

SwissLipidsiSLP:000000167.

Names & Taxonomyi

Protein namesi
Recommended name:
Sphingolipid delta(4)-desaturase DES1 (EC:1.14.19.171 Publication)
Alternative name(s):
Degenerative spermatocyte homolog 1
Gene namesi
Name:Degs1
Synonyms:Degs, Des1, Mdes
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
Proteomesi
  • UP000000589 Componenti: Chromosome 1

Organism-specific databases

MGIiMGI:1097711. Degs1.

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei41 – 61HelicalSequence analysisAdd BLAST21
Transmembranei68 – 88HelicalSequence analysisAdd BLAST21
Transmembranei104 – 124HelicalSequence analysisAdd BLAST21
Transmembranei152 – 172HelicalSequence analysisAdd BLAST21
Transmembranei184 – 204HelicalSequence analysisAdd BLAST21
Transmembranei209 – 229HelicalSequence analysisAdd BLAST21

Keywords - Cellular componenti

Endoplasmic reticulum, Membrane, Mitochondrion

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_00003127292 – 323Sphingolipid delta(4)-desaturase DES1Add BLAST322

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Lipidationi2N-myristoyl glycineBy similarity1
Modified residuei307PhosphoserineBy similarity1

Post-translational modificationi

Myristoylation can target the enzyme to the mitochondria leading to an increase in ceramide levels.By similarity

Keywords - PTMi

Lipoprotein, Myristate, Phosphoprotein

Proteomic databases

EPDiO09005.
MaxQBiO09005.
PaxDbiO09005.
PeptideAtlasiO09005.
PRIDEiO09005.

PTM databases

iPTMnetiO09005.
PhosphoSitePlusiO09005.
SwissPalmiO09005.

Expressioni

Tissue specificityi

Detected in testis. Detected in pachytene spermatocytes and round spermatids.1 Publication

Gene expression databases

BgeeiENSMUSG00000038633.
CleanExiMM_DEGS1.
ExpressionAtlasiO09005. baseline and differential.
GenevisibleiO09005. MM.

Interactioni

Protein-protein interaction databases

IntActiO09005. 1 interactor.
STRINGi10090.ENSMUSP00000048519.

Structurei

3D structure databases

ProteinModelPortaliO09005.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi89 – 93Histidine box-1Curated5
Motifi128 – 132Histidine box-2Curated5
Motifi259 – 263Histidine box-3Curated5

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiKOG2987. Eukaryota.
ENOG410XQVT. LUCA.
GeneTreeiENSGT00390000013448.
HOGENOMiHOG000188299.
HOVERGENiHBG052775.
InParanoidiO09005.
KOiK04712.
OMAiQIFFYAL.
OrthoDBiEOG091G09NW.
PhylomeDBiO09005.
TreeFamiTF313582.

Family and domain databases

CDDicd03508. Delta4-sphingolipid-FADS-like. 1 hit.
InterProiView protein in InterPro
IPR011388. DES1/DES2.
IPR005804. FA_desaturase_dom.
IPR013866. Sphingolipid_d4-desaturase_N.
PfamiView protein in Pfam
PF00487. FA_desaturase. 1 hit.
PF08557. Lipid_DES. 1 hit.
PIRSFiPIRSF017228. Sphnglp_dlt4_des. 1 hit.
SMARTiView protein in SMART
SM01269. Lipid_DES. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

O09005-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MGSRVSREEF EWVYTDQPHA ARRKEILAKY PEIKSLMKPD HNLIWIVAMM
60 70 80 90 100
LLVQLASFYL VKDLDWKWVI FWSYVFGSCL NHSMTLAIHE ISHNFPFGHH
110 120 130 140 150
KALWNRWFGM FANLSLGVPY SISFKRYHMD HHRYLGADKI DVDIPTDFEG
160 170 180 190 200
WFFCTTFRKF VWVILQPLFY AFRPLFINPK PITYLEIINT VIQITFDIII
210 220 230 240 250
YYVFGVKSLV YMLAATLLGL GLHPISGHFI AEHYMFLKGH ETYSYYGPLN
260 270 280 290 300
LLTFNVGYHN EHHDFPNVPG KNLPMVRKIA SEYYDDLPHY NSWIKVLYDF
310 320
VTDDTISPYS RMKRPPKGNE ILE
Length:323
Mass (Da):38,241
Last modified:July 1, 1997 - v1
Checksum:iC1840C24E6FF29E0
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti203V → A in AAM12532 (PubMed:11937514).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y08460 mRNA. Translation: CAA69714.1.
AF466376 mRNA. Translation: AAM12532.1.
AK002617 mRNA. Translation: BAB22233.1.
AK077257 mRNA. Translation: BAC36713.1.
AK149811 mRNA. Translation: BAE29098.1.
AK163404 mRNA. Translation: BAE37337.1.
BC003751 mRNA. Translation: AAH03751.1.
CCDSiCCDS15587.1.
RefSeqiNP_031879.1. NM_007853.4.
UniGeneiMm.29648.

Genome annotation databases

EnsembliENSMUST00000035295; ENSMUSP00000048519; ENSMUSG00000038633.
GeneIDi13244.
KEGGimmu:13244.
UCSCiuc007dxw.1. mouse.

Similar proteinsi

Entry informationi

Entry nameiDEGS1_MOUSE
AccessioniPrimary (citable) accession number: O09005
Secondary accession number(s): Q8R4H3
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 4, 2007
Last sequence update: July 1, 1997
Last modified: August 30, 2017
This is version 129 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. SIMILARITY comments
    Index of protein domains and families