A0A5Q0GYB2 · A0A5Q0GYB2_SACSY

Function

function

Fatty acid synthetase is a multifunctional enzyme that catalyzes the de novo biosynthesis of long-chain saturated fatty acids starting from acetyl-CoA and malonyl-CoA in the presence of NADPH. This multifunctional protein contains 7 catalytic activities and a site for the binding of the prosthetic group 4'-phosphopantetheine of the acyl carrier protein ([ACP]) domain.

Catalytic activity

  • (2E)-decenoyl-[ACP] + H+ + NADPH = decanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • (2E)-dodecenoyl-[ACP] + H+ + NADPH = dodecanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • (2E)-hexadecenoyl-[ACP] + H+ + NADPH = hexadecanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • (2E)-hexenoyl-[ACP] + H+ + NADPH = hexanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • (2E)-octadecenoyl-[ACP] + H+ + NADPH = NADP+ + octadecanoyl-[ACP]
    This reaction proceeds in the forward direction.
  • (2E)-octenoyl-[ACP] + H+ + NADPH = NADP+ + octanoyl-[ACP]
    This reaction proceeds in the forward direction.
  • (2E)-tetradecenoyl-[ACP] + H+ + NADPH = NADP+ + tetradecanoyl-[ACP]
    This reaction proceeds in the forward direction.
  • (3R)-hydroxybutanoyl-[ACP] = (2E)-butenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • (3R)-hydroxydecanoyl-[ACP] = (2E)-decenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • (3R)-hydroxydodecanoyl-[ACP] = (2E)-dodecenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • (3R)-hydroxyhexadecanoyl-[ACP] = (2E)-hexadecenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • (3R)-hydroxyhexanoyl-[ACP] = (2E)-hexenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • (3R)-hydroxyoctadecanoyl-[ACP] = (2E)-octadecenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • (3R)-hydroxyoctanoyl-[ACP] = (2E)-octenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • (3R)-hydroxytetradecanoyl-[ACP] = (2E)-tetradecenoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
  • 3-oxobutanoyl-[ACP] + H+ + NADPH = (3R)-hydroxybutanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • 3-oxodecanoyl-[ACP] + H+ + NADPH = (3R)-hydroxydecanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • 3-oxododecanoyl-[ACP] + H+ + NADPH = (3R)-hydroxydodecanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • 3-oxohexadecanoyl-[ACP] + H+ + NADPH = (3R)-hydroxyhexadecanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • 3-oxohexanoyl-[ACP] + H+ + NADPH = (3R)-hydroxyhexanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • 3-oxooctadecanoyl-[ACP] + H+ + NADPH = (3R)-hydroxyoctadecanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • 3-oxooctanoyl-[ACP] + H+ + NADPH = (3R)-hydroxyoctanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • 3-oxotetradecanoyl-[ACP] + H+ + NADPH = (3R)-hydroxytetradecanoyl-[ACP] + NADP+
    This reaction proceeds in the forward direction.
  • H+ + hexadecanoyl-[ACP] + malonyl-[ACP] = 3-oxooctadecanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
  • H+ + hexanoyl-[ACP] + malonyl-[ACP] = 3-oxooctanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
  • H+ + malonyl-[ACP] + octanoyl-[ACP] = 3-oxodecanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
  • H+ + malonyl-[ACP] + tetradecanoyl-[ACP] = 3-oxohexadecanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
  • H2O + hexadecanoyl-[ACP] = H+ + hexadecanoate + holo-[ACP]
    This reaction proceeds in the forward direction.
    EC:3.1.2.14 (UniProtKB | ENZYME | Rhea)
  • H2O + tetradecanoyl-[ACP] = H+ + holo-[ACP] + tetradecanoate
    This reaction proceeds in the forward direction.
    EC:3.1.2.14 (UniProtKB | ENZYME | Rhea)
  • a (3R)-hydroxyacyl-[ACP] + NADP+ = a 3-oxoacyl-[ACP] + H+ + NADPH
    This reaction proceeds in the backward direction.
    EC:1.1.1.100 (UniProtKB | ENZYME | Rhea)
  • a (3R)-hydroxyacyl-[ACP] = a (2E)-enoyl-[ACP] + H2O
    This reaction proceeds in the forward direction.
    EC:4.2.1.59 (UniProtKB | ENZYME | Rhea)
  • a 2,3-saturated acyl-[ACP] + NADP+ = a (2E)-enoyl-[ACP] + H+ + NADPH
    This reaction proceeds in the backward direction.
    EC:1.3.1.39 (UniProtKB | ENZYME | Rhea)
  • a fatty acyl-[ACP] + H+ + malonyl-[ACP] = a 3-oxoacyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
    EC:2.3.1.41 (UniProtKB | ENZYME | Rhea)
  • acetyl-CoA + holo-[ACP] = acetyl-[ACP] + CoA
    This reaction proceeds in the forward direction.
    EC:2.3.1.38 (UniProtKB | ENZYME | Rhea)
  • acetyl-[ACP] + H+ + malonyl-[ACP] = 3-oxobutanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
  • butanoyl-[ACP] + H+ + malonyl-[ACP] = 3-oxohexanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
  • decanoyl-[ACP] + H+ + malonyl-[ACP] = 3-oxododecanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.
  • dodecanoyl-[ACP] + H+ + malonyl-[ACP] = 3-oxotetradecanoyl-[ACP] + CO2 + holo-[ACP]
    This reaction proceeds in the forward direction.

Pathway

Antibiotic biosynthesis.
Lipid metabolism.

Features

Showing features for active site.

TypeIDPosition(s)Description
Active site898Proton acceptor; for dehydratase activity
Active site1044Proton donor; for dehydratase activity
Active site2803Proton acceptor; for dehydratase activity
Active site2964Proton donor; for dehydratase activity

GO annotations

AspectTerm
Cellular Componentcytoplasm
Cellular Componentplasma membrane
Molecular Function(3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity
Molecular Function3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity
Molecular Function3-oxoacyl-[acyl-carrier-protein] synthase activity
Molecular Function[acyl-carrier-protein] S-acetyltransferase activity
Molecular Functionenoyl-[acyl-carrier-protein] reductase (NADPH) activity
Molecular Functionfatty acid synthase activity
Molecular Functionfatty acyl-[ACP] hydrolase activity
Molecular Functionphosphopantetheine binding
Molecular Functionzinc ion binding
Biological ProcessDIM/DIP cell wall layer assembly
Biological Processfatty acid biosynthetic process
Biological Processmacrolide biosynthetic process
Biological Processtoxin biosynthetic process

Keywords

Names & Taxonomy

Protein names

  • Submitted names
    • Type I polyketide synthase

Gene names

    • ORF names
      EKG83_17110

Organism names

  • Taxonomic identifier
  • Strain
    • ATCC 51364 / DSM 43886 / JCM 6844 / KCTC 9398 / NBRC 14523 / NRRL B-16468 / INA 2240
  • Taxonomic lineage
    Bacteria > Actinomycetota > Actinomycetes > Pseudonocardiales > Pseudonocardiaceae > Saccharothrix

Accessions

  • Primary accession
    A0A5Q0GYB2

Proteomes

Subcellular Location

PTM/Processing

Keywords

Family & Domains

Features

Showing features for domain, region, compositional bias.

TypeIDPosition(s)Description
Domain33-455Ketosynthase family 3 (KS3)
Region866-981N-terminal hotdog fold
Domain866-1121PKS/mFAS DH
Region992-1121C-terminal hotdog fold
Domain1829-1904Carrier
Domain1921-2325Ketosynthase family 3 (KS3)
Region2771-2893N-terminal hotdog fold
Domain2771-3037PKS/mFAS DH
Region2855-2893Disordered
Compositional bias2868-2883Basic and acidic residues
Region2904-3037C-terminal hotdog fold
Domain3733-3808Carrier

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    4,092
  • Mass (Da)
    428,000
  • Last updated
    2020-04-22 v1
  • Checksum
    307453D8A0D0A3E5

Features

Showing features for compositional bias.

TypeIDPosition(s)Description
Compositional bias2868-2883Basic and acidic residues

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP034550
EMBL· GenBank· DDBJ
QFZ18939.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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