ID M1WMF9_PSEP2 Unreviewed; 159 AA.
AC M1WMF9;
DT 01-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 01-MAY-2013, sequence version 1.
DT 27-MAR-2024, entry version 53.
DE RecName: Full=Acetolactate synthase small subunit {ECO:0000256|RuleBase:RU368092};
DE Short=AHAS {ECO:0000256|RuleBase:RU368092};
DE Short=ALS {ECO:0000256|RuleBase:RU368092};
DE EC=2.2.1.6 {ECO:0000256|RuleBase:RU368092};
DE AltName: Full=Acetohydroxy-acid synthase small subunit {ECO:0000256|RuleBase:RU368092};
GN OrderedLocusNames=BN4_12300 {ECO:0000313|EMBL:CCH49535.1};
OS Pseudodesulfovibrio piezophilus (strain DSM 21447 / JCM 15486 / C1TLV30)
OS (Desulfovibrio piezophilus).
OC Bacteria; Thermodesulfobacteriota; Desulfovibrionia; Desulfovibrionales;
OC Desulfovibrionaceae.
OX NCBI_TaxID=1322246 {ECO:0000313|EMBL:CCH49535.1, ECO:0000313|Proteomes:UP000011724};
RN [1] {ECO:0000313|EMBL:CCH49535.1, ECO:0000313|Proteomes:UP000011724}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 10523 / SB164P1 {ECO:0000313|Proteomes:UP000011724};
RX PubMed=23383081; DOI=10.1371/journal.pone.0055130;
RA Pradel N., Ji B., Gimenez G., Talla E., Lenoble P., Garel M., Tamburini C.,
RA Fourquet P., Lebrun R., Bertin P., Denis Y., Pophillat M., Barbe V.,
RA Ollivier B., Dolla A.;
RT "The first genomic and proteomic characterization of a deep-sea sulfate
RT reducer: insights into the piezophilic lifestyle of Desulfovibrio
RT piezophilus.";
RL PLoS ONE 8:e55130-e55130(2013).
RN [2] {ECO:0000313|Proteomes:UP000011724}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 10523 / SB164P1 {ECO:0000313|Proteomes:UP000011724};
RX PubMed=23961312; DOI=10.4056/sigs.3777412;
RA Finster K.W., Kjeldsen K.U., Kube M., Reinhardt R., Mussmann M., Amann R.,
RA Schreiber L.;
RT "Complete genome sequence of Desulfocapsa sulfexigens, a marine
RT deltaproteobacterium specialized in disproportionating inorganic sulfur
RT compounds.";
RL Stand. Genomic Sci. 8:58-68(2013).
CC -!- FUNCTION: Catalyzes the conversion of 2 pyruvate molecules into
CC acetolactate in the first common step of the biosynthetic pathway of
CC the branched-amino acids such as leucine, isoleucine, and valine.
CC {ECO:0000256|RuleBase:RU368092}.
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 ECO:0000256|RuleBase:RU368092};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 1/4.
CC {ECO:0000256|RuleBase:RU368092}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 1/4. {ECO:0000256|RuleBase:RU368092}.
CC -!- SUBUNIT: Dimer of large and small chains.
CC {ECO:0000256|ARBA:ARBA00011744, ECO:0000256|RuleBase:RU368092}.
CC -!- SIMILARITY: Belongs to the acetolactate synthase small subunit family.
CC {ECO:0000256|RuleBase:RU368092}.
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DR EMBL; FO203427; CCH49535.1; -; Genomic_DNA.
DR RefSeq; WP_015415578.1; NC_020409.1.
DR AlphaFoldDB; M1WMF9; -.
DR STRING; 1322246.BN4_12300; -.
DR KEGG; dpi:BN4_12300; -.
DR PATRIC; fig|879567.3.peg.2450; -.
DR eggNOG; COG0440; Bacteria.
DR HOGENOM; CLU_055003_1_3_7; -.
DR OrthoDB; 9787365at2; -.
DR BioCyc; DPIE1322246:BN4_RS11555-MONOMER; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000011724; Chromosome.
DR GO; GO:0003984; F:acetolactate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:1990610; F:acetolactate synthase regulator activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniRule.
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 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; PF01842; ACT; 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|RuleBase:RU368092};
KW Branched-chain amino acid biosynthesis {ECO:0000256|RuleBase:RU368092};
KW Reference proteome {ECO:0000313|Proteomes:UP000011724};
KW Transferase {ECO:0000256|RuleBase:RU368092}.
FT DOMAIN 4..78
FT /note="ACT"
FT /evidence="ECO:0000259|PROSITE:PS51671"
SQ SEQUENCE 159 AA; 17381 MW; 2C603541D4B40CBD CRC64;
MKRTLSALAK NKPGVLADIA TEFSKSEANI LSLAAGETEQ AEISRIVIRL EGNDAAIDDA
EQTLKNLDAI IQIDDLSRKD FVDRELVMIK IAMSPGNTGQ LMQIFEVFRA NVVGMGQETI
TVELSGDQER IEGLIQMLVP YGIKSLCRSG MIALKRGDE
//
