METXA_RHORT
ID METXA_RHORT Reviewed; 391 AA.
AC Q2RP84;
DT 04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT 24-JAN-2006, sequence version 1.
DT 03-AUG-2022, entry version 92.
DE RecName: Full=Homoserine O-acetyltransferase {ECO:0000255|HAMAP-Rule:MF_00296};
DE Short=HAT {ECO:0000255|HAMAP-Rule:MF_00296};
DE EC=2.3.1.31 {ECO:0000255|HAMAP-Rule:MF_00296};
DE AltName: Full=Homoserine transacetylase {ECO:0000255|HAMAP-Rule:MF_00296};
DE Short=HTA {ECO:0000255|HAMAP-Rule:MF_00296};
GN Name=metXA {ECO:0000255|HAMAP-Rule:MF_00296}; OrderedLocusNames=Rru_A3266;
OS Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 /
OS NCIMB 8255 / S1).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC Rhodospirillaceae; Rhodospirillum.
OX NCBI_TaxID=269796;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIMB 8255 / S1;
RX PubMed=21886856; DOI=10.4056/sigs.1804360;
RA Munk A.C., Copeland A., Lucas S., Lapidus A., Del Rio T.G., Barry K.,
RA Detter J.C., Hammon N., Israni S., Pitluck S., Brettin T., Bruce D.,
RA Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M., Kyrpides N.C.,
RA Mavromatis K., Richardson P., Rohde M., Goeker M., Klenk H.P., Zhang Y.,
RA Roberts G.P., Reslewic S., Schwartz D.C.;
RT "Complete genome sequence of Rhodospirillum rubrum type strain (S1).";
RL Stand. Genomic Sci. 4:293-302(2011).
CC -!- FUNCTION: Transfers an acetyl group from acetyl-CoA to L-homoserine,
CC forming acetyl-L-homoserine. {ECO:0000255|HAMAP-Rule:MF_00296}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=acetyl-CoA + L-homoserine = CoA + O-acetyl-L-homoserine;
CC Xref=Rhea:RHEA:13701, ChEBI:CHEBI:57287, ChEBI:CHEBI:57288,
CC ChEBI:CHEBI:57476, ChEBI:CHEBI:57716; EC=2.3.1.31;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00296};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC pathway; O-acetyl-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; CP000230; ABC24061.1; -; Genomic_DNA.
DR RefSeq; WP_011391014.1; NC_007643.1.
DR RefSeq; YP_428348.1; NC_007643.1.
DR AlphaFoldDB; Q2RP84; -.
DR SMR; Q2RP84; -.
DR STRING; 269796.Rru_A3266; -.
DR ESTHER; rhort-metx; Homoserine_transacetylase.
DR EnsemblBacteria; ABC24061; ABC24061; Rru_A3266.
DR KEGG; rru:Rru_A3266; -.
DR PATRIC; fig|269796.9.peg.3383; -.
DR eggNOG; COG2021; Bacteria.
DR HOGENOM; CLU_028760_1_2_5; -.
DR OMA; TRFCVVS; -.
DR OrthoDB; 536745at2; -.
DR PhylomeDB; Q2RP84; -.
DR UniPathway; UPA00051; UER00074.
DR Proteomes; UP000001929; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004414; F:homoserine O-acetyltransferase 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..391
FT /note="Homoserine O-acetyltransferase"
FT /id="PRO_0000231886"
FT DOMAIN 50..360
FT /note="AB hydrolase-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT ACT_SITE 155
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT ACT_SITE 321
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT ACT_SITE 354
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT BINDING 225
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT BINDING 355
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
SQ SEQUENCE 391 AA; 42656 MW; AF31C0C40E5BFE5C CRC64;
MNVLPAASQP LNQSVTLCVD APMRLDSGLE LGPLTVAYQT IGRLNAERTN AILICHALTG
DQHVIGPHPV TGRPGWWETL VGPGKTIDTD RYFIICSNVL GGCLGTTGPK EINPATGKPW
GLGFPVITIG DMVRAQALLL DHLGIERLFC AIGGSMGAMQ VLQWAVSYPE RVRAVVPIAG
SWRHSAQNIA FHEVGRQAIM ADPDWNGGDY LNQGTVPRRG LAVARMTAHI TYLSEPALQS
KFGRKLQDRA SITYGFDADF QVESYLRHQG ANFVKRFDAN SYLYITRAMD YFDLAAEHDG
VLARAFQGTK VRFCVVSFTS DWLFPTAESR AVVRAMNAAA ADVSFVEVTT DKGHDAFLLD
EPEFHDTLQG FLDGAADMFG LPRGLFSGIR P