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Protein

3-oxoacyl-[acyl-carrier-protein] reductase FabG

Gene

fabG

Organism
Buchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the NADPH-dependent reduction of beta-ketoacyl-ACP substrates to beta-hydroxyacyl-ACP products, the first reductive step in the elongation cycle of fatty acid biosynthesis.By similarity

Catalytic activityi

(3R)-3-hydroxyacyl-[acyl-carrier-protein] + NADP+ = 3-oxoacyl-[acyl-carrier-protein] + NADPH.

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei37 – 371NADPBy similarity
Metal bindingi50 – 501Calcium 1; via carbonyl oxygen; shared with dimeric partnerBy similarity
Metal bindingi53 – 531Calcium 1; via carbonyl oxygen; shared with dimeric partnerBy similarity
Binding sitei86 – 861NADP; via carbonyl oxygenBy similarity
Binding sitei138 – 1381SubstrateBy similarity
Metal bindingi145 – 1451Calcium 2By similarity
Active sitei151 – 1511Proton acceptorPROSITE-ProRule annotation
Binding sitei184 – 1841NADP; via amide nitrogen and carbonyl oxygenBy similarity
Metal bindingi233 – 2331Calcium 3; shared with dimeric partnerBy similarity
Metal bindingi234 – 2341Calcium 3; via carbonyl oxygen; shared with dimeric partnerBy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi12 – 154NADPBy similarity
Nucleotide bindingi59 – 602NADPBy similarity
Nucleotide bindingi151 – 1555NADPBy similarity

GO - Molecular functioni

  1. 3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity Source: UniProtKB-EC
  2. metal ion binding Source: UniProtKB-KW
  3. NAD binding Source: InterPro

GO - Biological processi

  1. fatty acid biosynthetic process Source: UniProtKB-UniPathway
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

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

Keywords - Ligandi

Calcium, Metal-binding, NADP

Enzyme and pathway databases

BioCyciBAPH198804:GHMG-356-MONOMER.
UniPathwayiUPA00094.

Names & Taxonomyi

Protein namesi
Recommended name:
3-oxoacyl-[acyl-carrier-protein] reductase FabG (EC:1.1.1.100)
Alternative name(s):
3-ketoacyl-acyl carrier protein reductase
Beta-Ketoacyl-acyl carrier protein reductase
Beta-ketoacyl-ACP reductase
Gene namesi
Name:fabG
Ordered Locus Names:BUsg_339
OrganismiBuchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Taxonomic identifieri198804 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeBuchnera
ProteomesiUP000000416: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 2442443-oxoacyl-[acyl-carrier-protein] reductase FabGPRO_0000054667Add
BLAST

Interactioni

Subunit structurei

Homotetramer.By similarity

Protein-protein interaction databases

STRINGi198804.BUsg339.

Structurei

3D structure databases

ProteinModelPortaliQ8K9J5.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG1028.
KOiK00059.
OMAiSAFIGCK.
OrthoDBiEOG6N3CR8.

Family and domain databases

Gene3Di3.40.50.720. 1 hit.
InterProiIPR011284. 3oxo_ACP_reduc.
IPR002198. DH_sc/Rdtase_SDR.
IPR002347. Glc/ribitol_DH.
IPR016040. NAD(P)-bd_dom.
IPR020904. Sc_DH/Rdtase_CS.
[Graphical view]
PfamiPF00106. adh_short. 1 hit.
[Graphical view]
PRINTSiPR00081. GDHRDH.
PR00080. SDRFAMILY.
TIGRFAMsiTIGR01830. 3oxo_ACP_reduc. 1 hit.
PROSITEiPS00061. ADH_SHORT. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q8K9J5-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MKIEKKTALV TGANQGLGKE IAIKLSQKGI QVIGTSTTVD GVKTINKYLK
60 70 80 90 100
KNGFGFILDL KDTDSILEKM KEICQKKYSI DILINNAGIT SDNLLVYMSN
110 120 130 140 150
KEWENVIKIN LTSVFYMSKS VIRSMIKKRY GRIVTIGSVI GYLGNRGQIN
160 170 180 190 200
YSASKSGLIG FHKSLALEVA QKGITVNIVS PGFIKTNLTK NLNVFQYKKH
210 220 230 240
LSKIPMKRIG TAEEIANAVI FLSSEKASYI TGQTIHVNGG MYMT
Length:244
Mass (Da):26,939
Last modified:October 1, 2002 - v1
Checksum:i14526C91CDC54D5A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE013218 Genomic DNA. Translation: AAM67893.1.
RefSeqiNP_660682.1. NC_004061.1.

Genome annotation databases

EnsemblBacteriaiAAM67893; AAM67893; BUsg_339.
GeneIDi1005569.
KEGGibas:BUsg339.
PATRICi21247493. VBIBucAph100086_0353.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE013218 Genomic DNA. Translation: AAM67893.1.
RefSeqiNP_660682.1. NC_004061.1.

3D structure databases

ProteinModelPortaliQ8K9J5.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi198804.BUsg339.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAM67893; AAM67893; BUsg_339.
GeneIDi1005569.
KEGGibas:BUsg339.
PATRICi21247493. VBIBucAph100086_0353.

Phylogenomic databases

eggNOGiCOG1028.
KOiK00059.
OMAiSAFIGCK.
OrthoDBiEOG6N3CR8.

Enzyme and pathway databases

UniPathwayiUPA00094.
BioCyciBAPH198804:GHMG-356-MONOMER.

Family and domain databases

Gene3Di3.40.50.720. 1 hit.
InterProiIPR011284. 3oxo_ACP_reduc.
IPR002198. DH_sc/Rdtase_SDR.
IPR002347. Glc/ribitol_DH.
IPR016040. NAD(P)-bd_dom.
IPR020904. Sc_DH/Rdtase_CS.
[Graphical view]
PfamiPF00106. adh_short. 1 hit.
[Graphical view]
PRINTSiPR00081. GDHRDH.
PR00080. SDRFAMILY.
TIGRFAMsiTIGR01830. 3oxo_ACP_reduc. 1 hit.
PROSITEiPS00061. ADH_SHORT. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Sg.

Entry informationi

Entry nameiFABG_BUCAP
AccessioniPrimary (citable) accession number: Q8K9J5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 15, 2002
Last sequence update: October 1, 2002
Last modified: February 4, 2015
This is version 86 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Miscellaneous

Calcium ions stabilize the structure, and may inhibit FabG activity by obstructing access to the active site.By similarity

Keywords - Technical termi

Complete proteome

Documents

  1. Buchnera aphidicola (subsp. Schizaphis graminum)
    Buchnera aphidicola (subsp. Schizaphis graminum): entries and gene names
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.