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Protein

3-oxoacyl-[acyl-carrier-protein] synthase 3

Gene

fabH

Organism
Campylobacter jejuni subsp. jejuni serotype O:6 (strain 81116 / NCTC 11828)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. Catalyzes the first condensation reaction which initiates fatty acid synthesis and may therefore play a role in governing the total rate of fatty acid production. Possesses both acetoacetyl-ACP synthase and acetyl transacylase activities. Its substrate specificity determines the biosynthesis of branched-chain and/or straight-chain of fatty acids.UniRule annotation

Catalytic activityi

Acetyl-CoA + malonyl-[acyl-carrier-protein] = acetoacetyl-[acyl-carrier-protein] + CoA + CO2.UniRule annotation

Pathwayi: fatty acid biosynthesis

This protein is involved in the pathway fatty acid biosynthesis, which is part of Lipid metabolism.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway fatty acid biosynthesis and in Lipid metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei114 – 1141UniRule annotation
Active sitei246 – 2461UniRule annotation
Active sitei276 – 2761UniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Acyltransferase, Transferase

Keywords - Biological processi

Fatty acid biosynthesis, Fatty acid metabolism, Lipid biosynthesis, Lipid metabolism

Enzyme and pathway databases

BioCyciCJEJ407148:GHCS-310-MONOMER.
UniPathwayiUPA00094.

Names & Taxonomyi

Protein namesi
Recommended name:
3-oxoacyl-[acyl-carrier-protein] synthase 3UniRule annotation (EC:2.3.1.180UniRule annotation)
Alternative name(s):
3-oxoacyl-[acyl-carrier-protein] synthase IIIUniRule annotation
Beta-ketoacyl-ACP synthase IIIUniRule annotation
Short name:
KAS IIIUniRule annotation
Gene namesi
Name:fabHUniRule annotation
Ordered Locus Names:C8J_0305
OrganismiCampylobacter jejuni subsp. jejuni serotype O:6 (strain 81116 / NCTC 11828)
Taxonomic identifieri407148 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaEpsilonproteobacteriaCampylobacteralesCampylobacteraceaeCampylobacter

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 3243243-oxoacyl-[acyl-carrier-protein] synthase 3PRO_1000073680Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA8FKB7.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni247 – 2515ACP-bindingUniRule annotation

Domaini

The last Arg residue of the ACP-binding site is essential for the weak association between ACP/AcpP and FabH.UniRule annotation

Sequence similaritiesi

Belongs to the FabH family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000246674.
KOiK00648.
OMAiESGMYEN.
OrthoDBiEOG6J74XN.

Family and domain databases

Gene3Di3.40.47.10. 2 hits.
HAMAPiMF_01815. FabH.
InterProiIPR013751. ACP_syn_III.
IPR013747. ACP_syn_III_C.
IPR004655. FabH_synth.
IPR016039. Thiolase-like.
[Graphical view]
PfamiPF08545. ACP_syn_III. 1 hit.
PF08541. ACP_syn_III_C. 1 hit.
[Graphical view]
SUPFAMiSSF53901. SSF53901. 1 hit.
TIGRFAMsiTIGR00747. fabH. 1 hit.

Sequencei

Sequence statusi: Complete.

A8FKB7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLKASLKSIA SYIPEKILSN ADLEKMVDTT DEWITRRTGI KERRIASENE
60 70 80 90 100
NTSDLGTKAA LKAIKRANLK PEDIDAILVA TLSPDYFTMP STACKIASNL
110 120 130 140 150
GLVNISAFDI SAACSGFIYL LEQAKALVES GLKKNVLIIG AEKTSSIMDY
160 170 180 190 200
NDRSICILFG DGAGAGVVSL DNENHILDVH TASNGNYGDL LMTQRSQKSN
210 220 230 240 250
LCQTLSMQMK GNEVFKIAVN TLSNDVVEIL AKNNILAQEI DLFIPHQANL
260 270 280 290 300
RIIKAVQEKL NLSDEKCVIT VQKYGNTSAA SIPMAMNDAY EEGRLKKGDL
310 320
ILLDAFGGGF TWGSALLKFG GENF
Length:324
Mass (Da):35,192
Last modified:November 13, 2007 - v1
Checksum:i7774F8A82451709B
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000814 Genomic DNA. Translation: ABV51904.1.
RefSeqiWP_002866654.1. NC_009839.1.

Genome annotation databases

EnsemblBacteriaiABV51904; ABV51904; C8J_0305.
KEGGicju:C8J_0305.
PATRICi20054180. VBICamJej119085_0313.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000814 Genomic DNA. Translation: ABV51904.1.
RefSeqiWP_002866654.1. NC_009839.1.

3D structure databases

ProteinModelPortaliA8FKB7.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABV51904; ABV51904; C8J_0305.
KEGGicju:C8J_0305.
PATRICi20054180. VBICamJej119085_0313.

Phylogenomic databases

HOGENOMiHOG000246674.
KOiK00648.
OMAiESGMYEN.
OrthoDBiEOG6J74XN.

Enzyme and pathway databases

UniPathwayiUPA00094.
BioCyciCJEJ407148:GHCS-310-MONOMER.

Family and domain databases

Gene3Di3.40.47.10. 2 hits.
HAMAPiMF_01815. FabH.
InterProiIPR013751. ACP_syn_III.
IPR013747. ACP_syn_III_C.
IPR004655. FabH_synth.
IPR016039. Thiolase-like.
[Graphical view]
PfamiPF08545. ACP_syn_III. 1 hit.
PF08541. ACP_syn_III_C. 1 hit.
[Graphical view]
SUPFAMiSSF53901. SSF53901. 1 hit.
TIGRFAMsiTIGR00747. fabH. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. "The complete genome sequence of Campylobacter jejuni strain 81116 (NCTC11828)."
    Pearson B.M., Gaskin D.J.H., Segers R.P.A.M., Wells J.M., Nuijten P.J.M., van Vliet A.H.M.
    J. Bacteriol. 189:8402-8403(2007) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 81116 / NCTC 11828.

Entry informationi

Entry nameiFABH_CAMJ8
AccessioniPrimary (citable) accession number: A8FKB7
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 26, 2008
Last sequence update: November 13, 2007
Last modified: December 9, 2015
This is version 57 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Multifunctional enzyme

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.