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MPact protein interaction

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About CYGD

MIPS Fungal Genomes

mips home MIPS-FUNGI-ADM      FTP
SCS7 Protein required for hydroxylation of ceramide 
Alias:FAH1; YM8156.14
Classification:known protein | 5422 Entries | Evi | PUBMED
Feature Type:CDS
   Blast-Simap    DNA VIEW    PROTEIN VIEW

Paralogs (10.4 %) ;  |  Homologs in   Hemiascomycota (98.7 %);  Basidiomycota (47 %);  Fungi (98.7 %);  Eukaryota (98.7 %);  Plants (29.4 %);  Mammalia (37.5 %);  Human (33.8 %);  Bacteria (21.3 %);  All except yeast (98.7 %)

  • weak similarity to cytochrome b5
  • homologs in A.thaliana, C.elegans, S.pombe | PUBMED
Functional Classification:
TC Class:
  • Non Transporting Mebrane Proteins
    ......The Inositolphosphorylceramide Hydroxylase Subfamily | 1 Entry | Evi | PUBMED
Localization:  SCS7 localization details
  • cytoplasm
  • ER
  • golgi
    • contains C-terminal ER retention signal | PUBMED
    • contains a desaturase/hydroxylase domain | PUBMED
    • amino-terminal cytochrome b5 domain | PUBMED
    • b5 core domain shows a 52% identity and 70% similarity to that of the yeast microsomal cytochrome b5 and a 35% identity and 54% similarity to the b5 core domain of OLE1 | PUBMED
    • contains together with Ole1p HX(2-3)(XH)H motifs that are characteristic of membrane-bound fatty acid desaturases | PUBMED
Phenotypes:  Disruption: SCS7 details
  • viable
  • null mutany shows approximately 40-fold reduction of alpha-HO 26:0 and a complementary increase in 26:0 | PUBMED
  • scs7 mutants show reduced hydroxylation of ceramides | PUBMED
  • scs7 csg2 double null mutants contain both hydroxylated and unhydroxylated fatty acids | PUBMED
  • scs7 csg2 sur2 triple null mutants synthetize only one sphingolipid inositolphosphorylceramide IPC-A | PUBMED
  • scs7 csg2 double mutant accumulate IPC-B and IPC-C formation is blocked | PUBMED
  • scs7 deletion mutation suppresses the Ca2+-sensitivity of csg1 and csg2 mutants | PUBMED
  • Carbohydrate and lipid biosynthesis defects
    ..other carbohydrate and lipid biosynthesis defects | 36 Entries
Click for larger Map
Physical Features
Coordinates:810776 - 809622 (C)
Length:1155 nt
Exon Coordinates:810776 - 809622
GC Content:42.5 %
Protein Length:384 aa
Isoelectric Point:6.08
Molecular Weight:44881.7 Da
Transmembrane Domains:Begin - End / Length (aa)
196 - 215 / 20
222 - 244 / 23
298 - 320 / 23

3 TM- Domains
Retrieve Sequence: DNA /Protein
Literature | References
CYGD curated Lit.:PubMed
PubMed:Search abstracts
PubMed Central:Search full-text articles
Sequence References:
EMBL: Z49260
PIR: S54484
UniProtKB: Q03529
NCBI: NP_013999
Additional Links:
CYGD Pathways:
  • Sphingolipid biosynthesis
  • LinkOut:
  • SGD - Saccharomyces Genome Database
  • YGOB - Yeast Gene Order Browser
  • yMGV - yeast Microarray Global Viewer

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