ID C8S1J0_9RHOB Unreviewed; 210 AA.
AC C8S1J0;
DT 03-NOV-2009, integrated into UniProtKB/TrEMBL.
DT 03-NOV-2009, sequence version 1.
DT 27-MAR-2024, entry version 42.
DE RecName: Full=acetolactate synthase {ECO:0000256|ARBA:ARBA00013145};
DE EC=2.2.1.6 {ECO:0000256|ARBA:ARBA00013145};
GN ORFNames=Rsw2DRAFT_1918 {ECO:0000313|EMBL:EEW25163.1};
OS Rhodobacter sp. SW2.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Rhodobacter.
OX NCBI_TaxID=371731 {ECO:0000313|EMBL:EEW25163.1, ECO:0000313|Proteomes:UP000010121};
RN [1] {ECO:0000313|EMBL:EEW25163.1, ECO:0000313|Proteomes:UP000010121}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SW2 {ECO:0000313|EMBL:EEW25163.1,
RC ECO:0000313|Proteomes:UP000010121};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA Goodwin L., Pitluck S., Larimer F., Land M.L., Hauser L., Emerson D.;
RT "The draft genome of Rhodobacter sp. SW2.";
RL Submitted (AUG-2009) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + 2 pyruvate = (2S)-2-acetolactate + CO2;
CC Xref=Rhea:RHEA:25249, ChEBI:CHEBI:15361, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16526, ChEBI:CHEBI:58476; EC=2.2.1.6;
CC Evidence={ECO:0000256|ARBA:ARBA00000673};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 1/4.
CC {ECO:0000256|ARBA:ARBA00004974}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 1/4. {ECO:0000256|ARBA:ARBA00005025}.
CC -!- SUBUNIT: Dimer of large and small chains.
CC {ECO:0000256|ARBA:ARBA00011744}.
CC -!- SIMILARITY: Belongs to the acetolactate synthase small subunit family.
CC {ECO:0000256|ARBA:ARBA00006341}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EEW25163.1}.
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DR EMBL; ACYY01000011; EEW25163.1; -; Genomic_DNA.
DR AlphaFoldDB; C8S1J0; -.
DR STRING; 371731.Rsw2DRAFT_1918; -.
DR eggNOG; COG0440; Bacteria.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000010121; Unassembled WGS sequence.
DR GO; GO:0003984; F:acetolactate synthase activity; IEA:UniProtKB-EC.
DR GO; GO:1990610; F:acetolactate synthase regulator activity; IEA:InterPro.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd04878; ACT_AHAS; 1.
DR Gene3D; 3.30.70.260; -; 1.
DR Gene3D; 3.30.70.1150; ACT-like. Chain A, domain 2; 1.
DR InterPro; IPR004789; Acetalactate_synth_ssu.
DR InterPro; IPR027271; Acetolactate_synth/TF_NikR_C.
DR InterPro; IPR019455; Acetolactate_synth_ssu_C.
DR InterPro; IPR045865; ACT-like_dom_sf.
DR InterPro; IPR002912; ACT_dom.
DR InterPro; IPR039557; AHAS_ACT.
DR NCBIfam; TIGR00119; acolac_sm; 1.
DR PANTHER; PTHR30239; ACETOLACTATE SYNTHASE SMALL SUBUNIT; 1.
DR PANTHER; PTHR30239:SF0; ACETOLACTATE SYNTHASE SMALL SUBUNIT 1, CHLOROPLASTIC; 1.
DR Pfam; PF13710; ACT_5; 1.
DR Pfam; PF10369; ALS_ss_C; 1.
DR SUPFAM; SSF55021; ACT-like; 2.
DR PROSITE; PS51671; ACT; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304};
KW Reference proteome {ECO:0000313|Proteomes:UP000010121}.
FT DOMAIN 54..129
FT /note="ACT"
FT /evidence="ECO:0000259|PROSITE:PS51671"
SQ SEQUENCE 210 AA; 22917 MW; B0065332FF248DCB CRC64;
MAAGILYCWE NGLRLQRRWV KETAVSALNI KKGSTSHSAY ELRDPNAEAI ETHTLAVLVD
NESGVLARVI GLFSGRGYNI DSLTVAEVDH LGHRSRITVV TTGTPLVIDQ IKAQLARMVP
VHEVHDLTVE GPAVLRELAL FKVAGKGEAR IEALRLCEIF RAKVVDSTLE SFVFEMTGTP
EKVDAFADLM RPLGLREMAR TGVAALSRGA
//
