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Protein

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

Gene

fabG

Organism
Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

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.1 Publication

Miscellaneous

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

Catalytic activityi

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

Pathwayi: fatty acid biosynthesis

This protein is involved in the pathway fatty acid biosynthesis, which is part of Lipid metabolism.
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)DescriptionActionsGraphical viewLength
Binding sitei37NADPBy similarity1
Metal bindingi50Calcium 1; via carbonyl oxygen; shared with dimeric partnerBy similarity1
Metal bindingi53Calcium 1; via carbonyl oxygen; shared with dimeric partnerBy similarity1
Binding sitei86NADP; via carbonyl oxygenBy similarity1
Binding sitei138SubstrateBy similarity1
Metal bindingi145Calcium 2By similarity1
Active sitei151Proton acceptorPROSITE-ProRule annotation1
Binding sitei184NADP; via amide nitrogen and carbonyl oxygenBy similarity1
Metal bindingi233Calcium 3; shared with dimeric partnerBy similarity1
Metal bindingi234Calcium 3; via carbonyl oxygen; shared with dimeric partnerBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi12 – 15NADPBy similarity4
Nucleotide bindingi59 – 60NADPBy similarity2
Nucleotide bindingi151 – 155NADPBy similarity5

GO - Molecular functioni

GO - Biological processi

  • fatty acid elongation Source: UniProtKB

Keywordsi

Molecular functionOxidoreductase
Biological processFatty acid biosynthesis, Fatty acid metabolism, Lipid biosynthesis, Lipid metabolism
LigandCalcium, Metal-binding, NADP

Enzyme and pathway databases

BioCyciSENT99287:G1FZD-1210-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:STM1195
OrganismiSalmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
Taxonomic identifieri99287 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeSalmonella
Proteomesi
  • UP000001014 Componenti: Chromosome

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi125M → I: Loss of the temperature-sensitive phenotype; when associated with T-223. 1 Publication1
Mutagenesisi223A → T: Loss of the temperature-sensitive phenotype; when associated with I-125. 1 Publication1
Mutagenesisi224S → F: Distorts the local conformation and prevent stacking around Phe-221. The S224F mutation would additionally disrupt the hydrogen bond formed between Ser-224 and Glu-226. 1 Publication1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000546811 – 2443-oxoacyl-[acyl-carrier-protein] reductase FabGAdd BLAST244

Proteomic databases

PaxDbiP0A2C9
PRIDEiP0A2C9

Interactioni

Subunit structurei

Homotetramer.By similarity

Protein-protein interaction databases

STRINGi99287.STM1195

Structurei

3D structure databases

ProteinModelPortaliP0A2C9
SMRiP0A2C9
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

eggNOGiENOG4105CHR Bacteria
ENOG410XNW1 LUCA
KOiK00059
OMAiGSRNIRC
PhylomeDBiP0A2C9

Family and domain databases

InterProiView protein in InterPro
IPR011284 3oxo_ACP_reduc
IPR036291 NAD(P)-bd_dom_sf
IPR020904 Sc_DH/Rdtase_CS
IPR002347 SDR_fam
PRINTSiPR00081 GDHRDH
PR00080 SDRFAMILY
SUPFAMiSSF51735 SSF51735, 1 hit
TIGRFAMsiTIGR01830 3oxo_ACP_reduc, 1 hit
PROSITEiView protein in PROSITE
PS00061 ADH_SHORT, 1 hit

Sequencei

Sequence statusi: Complete.

P0A2C9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSFEGKIALV TGASRGIGRA IAETLVARGA KVIGTATSEN GAKNISDYLG
60 70 80 90 100
ANGKGLMLNV TDPASIESVL ENIRAEFGEV DILVNNAGIT RDNLLMRMKD
110 120 130 140 150
DEWNDIIETN LSSVFRLSKA VMRAMMKKRC GRIITIGSVV GTMGNAGQAN
160 170 180 190 200
YAAAKAGLIG FSKSLAREVA SRGITVNVVA PGFIETDMTR ALSDDQRAGI
210 220 230 240
LAQVPAGRLG GAQEIASAVA FLASDEASYI TGETLHVNGG MYMV
Length:244
Mass (Da):25,545
Last modified:March 15, 2005 - v1
Checksum:i86D71DA3E9AF0363
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF044668 Genomic DNA Translation: AAC38650.1
AE006468 Genomic DNA Translation: AAL20124.1
RefSeqiNP_460165.1, NC_003197.2
WP_000007236.1, NC_003197.2

Genome annotation databases

EnsemblBacteriaiAAL20124; AAL20124; STM1195
GeneIDi1252713
KEGGistm:STM1195
PATRICifig|99287.12.peg.1264

Similar proteinsi

Entry informationi

Entry nameiFABG_SALTY
AccessioniPrimary (citable) accession number: P0A2C9
Secondary accession number(s): O85141
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: March 15, 2005
Last modified: March 28, 2018
This is version 90 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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