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Database: UniProt
Entry: A0A0A1FG64_9BURK
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ID   A0A0A1FG64_9BURK        Unreviewed;       163 AA.
AC   A0A0A1FG64;
DT   04-FEB-2015, integrated into UniProtKB/TrEMBL.
DT   04-FEB-2015, sequence version 1.
DT   24-JAN-2024, entry version 32.
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   ORFNames=LT85_3506 {ECO:0000313|EMBL:AIY42664.1};
OS   Collimonas arenae.
OC   Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC   Oxalobacteraceae; Collimonas.
OX   NCBI_TaxID=279058 {ECO:0000313|EMBL:AIY42664.1, ECO:0000313|Proteomes:UP000030302};
RN   [1] {ECO:0000313|EMBL:AIY42664.1, ECO:0000313|Proteomes:UP000030302}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Cal35 {ECO:0000313|EMBL:AIY42664.1,
RC   ECO:0000313|Proteomes:UP000030302};
RA   Uroz S., Tech J.J., Sawaya N.A., Frey-Klett P., Leveau J.H.J.;
RT   "Structure and function of bacterial communities in ageing soils: insights
RT   from the Mendocino ecological staircase.";
RL   Soil Biol. Biochem. 69:265-274(2014).
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|ARBA:ARBA00004974, ECO:0000256|RuleBase:RU368092}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC       pyruvate: step 1/4. {ECO:0000256|ARBA:ARBA00005025,
CC       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|ARBA:ARBA00006341, ECO:0000256|RuleBase:RU368092}.
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DR   EMBL; CP009962; AIY42664.1; -; Genomic_DNA.
DR   RefSeq; WP_014005248.1; NZ_CP009962.1.
DR   AlphaFoldDB; A0A0A1FG64; -.
DR   STRING; 279058.LT85_3506; -.
DR   KEGG; care:LT85_3506; -.
DR   HOGENOM; CLU_055003_1_3_4; -.
DR   OrthoDB; 9787365at2; -.
DR   UniPathway; UPA00047; UER00055.
DR   UniPathway; UPA00049; UER00059.
DR   Proteomes; UP000030302; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
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   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 2, 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   ECO:0000256|RuleBase:RU368092};
KW   Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW   ECO:0000256|RuleBase:RU368092};
KW   Transferase {ECO:0000256|RuleBase:RU368092, ECO:0000313|EMBL:AIY42664.1}.
SQ   SEQUENCE   163 AA;  17975 MW;  C921516A6EB44F39 CRC64;
     MRHIVSVLLE NEAGALSRVV GLFSARGYNI ETLTVAPTED ATLSRMTIVT SGSDDVIEQI
     TKHLNRLIEV VKVVDLTEGA HIERELMLIK VRAVGKEREE MKRTADIFRG RIIDVTDKSY
     TLELTGNKGK LDAFIDSIDR AAILETVRTG GSGIGRGERI LKV
//
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