ID A0A0N9VLS9_9GAMM Unreviewed; 575 AA.
AC A0A0N9VLS9;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 27-MAR-2024, entry version 42.
DE RecName: Full=Acetolactate synthase {ECO:0000256|ARBA:ARBA00013145, ECO:0000256|RuleBase:RU003591};
DE EC=2.2.1.6 {ECO:0000256|ARBA:ARBA00013145, ECO:0000256|RuleBase:RU003591};
GN ORFNames=AOY20_01535 {ECO:0000313|EMBL:ALH94327.1};
OS Acinetobacter equi.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Acinetobacter.
OX NCBI_TaxID=1324350 {ECO:0000313|EMBL:ALH94327.1, ECO:0000313|Proteomes:UP000064939};
RN [1] {ECO:0000313|EMBL:ALH94327.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=114 {ECO:0000313|EMBL:ALH94327.1};
RX PubMed=26620413;
RA Poppel M.T., Skiebe E., Laue M., Bergmann H., Ebersberger I., Garn T.,
RA Fruth A., Baumgardt S., Busse H.J., Wilharm G.;
RT "Acinetobacter equi sp. nov. isolated from horse faeces.";
RL Int. J. Syst. Evol. Microbiol. 0:0-0(2015).
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|RuleBase:RU003591};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|RuleBase:RU003591};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC Note=Binds 1 thiamine pyrophosphate per subunit.
CC {ECO:0000256|RuleBase:RU003591};
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:RU003591}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 1/4. {ECO:0000256|ARBA:ARBA00005025,
CC ECO:0000256|RuleBase:RU003591}.
CC -!- SIMILARITY: Belongs to the TPP enzyme family.
CC {ECO:0000256|ARBA:ARBA00007812, ECO:0000256|RuleBase:RU003591}.
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DR EMBL; CP012808; ALH94327.1; -; Genomic_DNA.
DR RefSeq; WP_054580240.1; NZ_CP012808.1.
DR AlphaFoldDB; A0A0N9VLS9; -.
DR STRING; 1324350.AOY20_01535; -.
DR KEGG; aei:AOY20_01535; -.
DR OrthoDB; 9785953at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000064939; Chromosome.
DR GO; GO:0003984; F:acetolactate synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030976; F:thiamine pyrophosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd02015; TPP_AHAS; 1.
DR CDD; cd07035; TPP_PYR_POX_like; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR Gene3D; 3.40.50.1220; TPP-binding domain; 1.
DR InterPro; IPR012846; Acetolactate_synth_lsu.
DR InterPro; IPR039368; AHAS_TPP.
DR InterPro; IPR029035; DHS-like_NAD/FAD-binding_dom.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR012000; Thiamin_PyroP_enz_cen_dom.
DR InterPro; IPR012001; Thiamin_PyroP_enz_TPP-bd_dom.
DR InterPro; IPR045229; TPP_enz.
DR InterPro; IPR011766; TPP_enzyme_TPP-bd.
DR NCBIfam; TIGR00118; acolac_lg; 1.
DR PANTHER; PTHR18968:SF13; ACETOLACTATE SYNTHASE CATALYTIC SUBUNIT, MITOCHONDRIAL; 1.
DR PANTHER; PTHR18968; THIAMINE PYROPHOSPHATE ENZYMES; 1.
DR Pfam; PF02775; TPP_enzyme_C; 1.
DR Pfam; PF00205; TPP_enzyme_M; 1.
DR Pfam; PF02776; TPP_enzyme_N; 1.
DR SUPFAM; SSF52467; DHS-like NAD/FAD-binding domain; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|RuleBase:RU003591};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|RuleBase:RU003591}; Magnesium {ECO:0000256|RuleBase:RU003591};
KW Metal-binding {ECO:0000256|RuleBase:RU003591};
KW Reference proteome {ECO:0000313|Proteomes:UP000064939};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:ALH94327.1}.
FT DOMAIN 5..119
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 196..330
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 396..545
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 575 AA; 63207 MW; E30985FDDBEBEF18 CRC64;
MELLSGGDML VRALADEGVE HVFGYPGGAV LHIYDAFFRQ DKINHYLVRH EQAAGHMADA
YSRVTGKTGV VLVTSGPGAT NTVTPIATAY MDSIPMVILS GQVASHLIGE DAFQETDMVG
ISRPIVKHSF QVRHASEIPS IIKKAFYIAS SGRPGPVVVD IPKDVTNPAE KFAYEYPEKV
KMRSYQPPHR GHSGQIRKAI DELLNAKRPV IYSGGGVVQG NASEQLTELA HILGFPVTNT
LMGLGAFPGD DSQFIGMLGM HGTYEANMTM HNADVILCIG ARFDDRVTNN PAKFCPNAKV
IHIDIDPATI SKTIMAHIPI VGAVEPVLTE MLAQLKQMNV SKPNSEEIAA WWDQINEWRK
VHGLRYQPAT NGGMKPQQVV EALDKVTNSE AIITSDVGQH QMFGALYYTY KRPRQWINSG
GLGTMGVGLP YAMAAKLAFP DQQVVCITGE ASIQMCIQEL STCKQYGLNV KILCLNNRAL
GMVKQWQDMN YEGRHSSSYV ESLPDFAKLM EAYGHVGIQI DHADELESKL AEAMAINDKC
VFINVMVDRS EHVYPMQIAG QSMQDMWLAK GERTK
//
