METXS_ALKEH
ID METXS_ALKEH Reviewed; 384 AA.
AC Q0ABU4;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 17-OCT-2006, sequence version 1.
DT 03-AUG-2022, entry version 91.
DE RecName: Full=Homoserine O-succinyltransferase {ECO:0000255|HAMAP-Rule:MF_00296};
DE Short=HST {ECO:0000255|HAMAP-Rule:MF_00296};
DE EC=2.3.1.46 {ECO:0000255|HAMAP-Rule:MF_00296};
DE AltName: Full=Homoserine transsuccinylase {ECO:0000255|HAMAP-Rule:MF_00296};
DE Short=HTS {ECO:0000255|HAMAP-Rule:MF_00296};
GN Name=metXS {ECO:0000255|HAMAP-Rule:MF_00296}; OrderedLocusNames=Mlg_0338;
OS Alkalilimnicola ehrlichii (strain ATCC BAA-1101 / DSM 17681 / MLHE-1).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales;
OC Ectothiorhodospiraceae; Alkalilimnicola.
OX NCBI_TaxID=187272;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1101 / DSM 17681 / MLHE-1;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Sims D., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Oremland R.S.,
RA Hoeft S.E., Switzer-Blum J., Kulp T., King G., Tabita R., Witte B.,
RA Santini J.M., Basu P., Hollibaugh J.T., Xie G., Stolz J.F., Richardson P.;
RT "Complete sequence of Alkalilimnicola ehrilichei MLHE-1.";
RL Submitted (AUG-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Transfers a succinyl group from succinyl-CoA to L-homoserine,
CC forming succinyl-L-homoserine. {ECO:0000255|HAMAP-Rule:MF_00296}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-homoserine + succinyl-CoA = CoA + O-succinyl-L-homoserine;
CC Xref=Rhea:RHEA:22008, ChEBI:CHEBI:57287, ChEBI:CHEBI:57292,
CC ChEBI:CHEBI:57476, ChEBI:CHEBI:57661; EC=2.3.1.46;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00296};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC pathway; O-succinyl-L-homoserine from L-homoserine: step 1/1.
CC {ECO:0000255|HAMAP-Rule:MF_00296}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00296}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00296}.
CC -!- SIMILARITY: Belongs to the AB hydrolase superfamily. MetX family.
CC {ECO:0000255|HAMAP-Rule:MF_00296}.
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DR EMBL; CP000453; ABI55693.1; -; Genomic_DNA.
DR RefSeq; WP_011628089.1; NC_008340.1.
DR AlphaFoldDB; Q0ABU4; -.
DR SMR; Q0ABU4; -.
DR ESTHER; alheh-metx; Homoserine_transacetylase.
DR PRIDE; Q0ABU4; -.
DR EnsemblBacteria; ABI55693; ABI55693; Mlg_0338.
DR KEGG; aeh:Mlg_0338; -.
DR eggNOG; COG2021; Bacteria.
DR HOGENOM; CLU_028760_1_2_6; -.
DR OMA; TRFCVVS; -.
DR OrthoDB; 536745at2; -.
DR UniPathway; UPA00051; UER00075.
DR Proteomes; UP000001962; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008899; F:homoserine O-succinyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009086; P:methionine biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.1820; -; 1.
DR HAMAP; MF_00296; MetX_acyltransf; 1.
DR InterPro; IPR029058; AB_hydrolase.
DR InterPro; IPR000073; AB_hydrolase_1.
DR InterPro; IPR008220; HAT_MetX-like.
DR PANTHER; PTHR32268; PTHR32268; 1.
DR Pfam; PF00561; Abhydrolase_1; 1.
DR PIRSF; PIRSF000443; Homoser_Ac_trans; 1.
DR SUPFAM; SSF53474; SSF53474; 1.
DR TIGRFAMs; TIGR01392; homoserO_Ac_trn; 1.
PE 3: Inferred from homology;
KW Acyltransferase; Amino-acid biosynthesis; Cytoplasm;
KW Methionine biosynthesis; Reference proteome; Transferase.
FT CHAIN 1..384
FT /note="Homoserine O-succinyltransferase"
FT /id="PRO_1000115210"
FT DOMAIN 51..361
FT /note="AB hydrolase-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT ACT_SITE 157
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT ACT_SITE 324
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT ACT_SITE 357
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT BINDING 227
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT BINDING 358
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT SITE 326
FT /note="Important for acyl-CoA specificity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
SQ SEQUENCE 384 AA; 43094 MW; 6D85CE49C16400D4 CRC64;
MPKHLPADSV GIVEQHSLHF DEPLPLDCGR SLPAYDLVYE TYGELNAERS NAILICHALS
GSHHAAGYHS EEDRKPGWWE ACVGPGKPID TDRFYVVCCN NLGGCHGSTG PSSINPETHR
PYGPDFPLVT VRDWVHSQAR LADALGIERW AAVVGGSLGG MQAIQWAIDY PDRLGHVVAI
AVAPRLSAQN IGFNEVARQA ILTDPEFHGG RYYEHHTVPR RGLALARMLG HITYLSDDAM
RDKFGRDLRA DGGRYKFNFD VEFEVESYLR YQGRSFVDRF DANTYLLMTK VLDYFDPAAE
YDHDLSAALA HVQARFLLIS FSSDWRFPPE RSREIVRALE DNQKPISYLE VETSQGHDAF
LKPIPVYTEA FRAYMQGIAR EVGA
