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Protein

Homoserine O-acetyltransferase

Gene

metX

Organism
Rhizobium loti (strain MAFF303099) (Mesorhizobium loti)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Involved in the methionine biosynthesis. Catalyzes the transfer of the acetyl group from acetyl-CoA to the hydroxyl group of L-homoserine to yield O-acetyl-L-homoserine.UniRule annotation

Catalytic activityi

Acetyl-CoA + L-homoserine = CoA + O-acetyl-L-homoserine.UniRule annotation

Pathwayi: L-methionine biosynthesis via de novo pathway

This protein is involved in step 1 of the subpathway that synthesizes O-acetyl-L-homoserine from L-homoserine.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Homoserine O-acetyltransferase (metX)
This subpathway is part of the pathway L-methionine biosynthesis via de novo pathway, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes O-acetyl-L-homoserine from L-homoserine, the pathway L-methionine biosynthesis via de novo pathway and in Amino-acid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei161NucleophileUniRule annotation1
Active sitei327UniRule annotation1
Active sitei360UniRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Acyltransferase, Transferase

Keywords - Biological processi

Amino-acid biosynthesis, Methionine biosynthesis

Enzyme and pathway databases

UniPathwayiUPA00051; UER00074.

Protein family/group databases

ESTHERimeslo-MLR3538. Homoserine_transacetylase.

Names & Taxonomyi

Protein namesi
Recommended name:
Homoserine O-acetyltransferaseUniRule annotation (EC:2.3.1.31UniRule annotation)
Alternative name(s):
Homoserine O-trans-acetylaseUniRule annotation
Short name:
HTAUniRule annotation
Short name:
Homoserine transacetylaseUniRule annotation
Gene namesi
Name:metXUniRule annotation
Ordered Locus Names:mlr3538
OrganismiRhizobium loti (strain MAFF303099) (Mesorhizobium loti)
Taxonomic identifieri266835 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesPhyllobacteriaceaeMesorhizobium
Proteomesi
  • UP000000552 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001557411 – 389Homoserine O-acetyltransferaseAdd BLAST389

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi266835.mlr3538.

Structurei

3D structure databases

ProteinModelPortaliQ98G09.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini56 – 366AB hydrolase-1Sequence analysisAdd BLAST311

Sequence similaritiesi

Belongs to the AB hydrolase superfamily. HTA family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105DWV. Bacteria.
COG2021. LUCA.
HOGENOMiHOG000246301.
KOiK00641.
OMAiGSVGGMN.
OrthoDBiPOG091H08NY.

Family and domain databases

Gene3Di3.40.50.1820. 1 hit.
HAMAPiMF_00296. Homoser_O_acetyltr. 1 hit.
InterProiIPR029058. AB_hydrolase.
IPR000073. AB_hydrolase_1.
IPR008220. Homoserine_AcTrfase.
[Graphical view]
PfamiPF00561. Abhydrolase_1. 1 hit.
[Graphical view]
PIRSFiPIRSF000443. Homoser_Ac_trans. 1 hit.
SUPFAMiSSF53474. SSF53474. 1 hit.
TIGRFAMsiTIGR01392. homoserO_Ac_trn. 1 hit.

Sequencei

Sequence statusi: Complete.

Q98G09-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAALRAGKTN NEADQPSSPV LRFGADKPLK LDAGTLLSPF QIAYQTYGTL
60 70 80 90 100
NDARSNAILV CHALTGDQHV ANTNPVTGKP GWWEVLIGPG RIIDTNRFFV
110 120 130 140 150
ICSNVIGGCL GSTGPASTNP ATGKPYGLDL PVITIRDMVR AQQMLIDHFG
160 170 180 190 200
IEKLFCVLGG SMGGMQVLEW ASSYPERVFS ALPIATGARH SSQNIAFHEV
210 220 230 240 250
GRQAVMADPD WHGGKYFENG KRPEKGLAVA RMAAHITYLS EAALHRKFGR
260 270 280 290 300
NLQDREALTF GFDADFQIES YLRHQGMTFV DRFDANSYLY MTRSMDYFDL
310 320 330 340 350
AADHGGRLAD AFAGTKTRFC LVSFTSDWLF PTEESRSIVH ALNAAGASVS
360 370 380
FVEIETDRGH DAFLLDEPEL FAAINGFIGS AARARGLSA
Length:389
Mass (Da):42,364
Last modified:October 1, 2001 - v1
Checksum:i0679C21C79C92CA7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000012 Genomic DNA. Translation: BAB50407.1.
RefSeqiWP_010911753.1. NC_002678.2.

Genome annotation databases

EnsemblBacteriaiBAB50407; BAB50407; BAB50407.
GeneIDi1227282.
KEGGimlo:mlr3538.
PATRICi22479855. VBIMesLot2464_2818.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000012 Genomic DNA. Translation: BAB50407.1.
RefSeqiWP_010911753.1. NC_002678.2.

3D structure databases

ProteinModelPortaliQ98G09.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi266835.mlr3538.

Protein family/group databases

ESTHERimeslo-MLR3538. Homoserine_transacetylase.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAB50407; BAB50407; BAB50407.
GeneIDi1227282.
KEGGimlo:mlr3538.
PATRICi22479855. VBIMesLot2464_2818.

Phylogenomic databases

eggNOGiENOG4105DWV. Bacteria.
COG2021. LUCA.
HOGENOMiHOG000246301.
KOiK00641.
OMAiGSVGGMN.
OrthoDBiPOG091H08NY.

Enzyme and pathway databases

UniPathwayiUPA00051; UER00074.

Family and domain databases

Gene3Di3.40.50.1820. 1 hit.
HAMAPiMF_00296. Homoser_O_acetyltr. 1 hit.
InterProiIPR029058. AB_hydrolase.
IPR000073. AB_hydrolase_1.
IPR008220. Homoserine_AcTrfase.
[Graphical view]
PfamiPF00561. Abhydrolase_1. 1 hit.
[Graphical view]
PIRSFiPIRSF000443. Homoser_Ac_trans. 1 hit.
SUPFAMiSSF53474. SSF53474. 1 hit.
TIGRFAMsiTIGR01392. homoserO_Ac_trn. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiMETX_RHILO
AccessioniPrimary (citable) accession number: Q98G09
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 23, 2003
Last sequence update: October 1, 2001
Last modified: November 2, 2016
This is version 77 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

Complete proteome, Reference proteome

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.