ID Q1R095_CHRSD Unreviewed; 585 AA.
AC Q1R095;
DT 16-MAY-2006, integrated into UniProtKB/TrEMBL.
DT 16-MAY-2006, sequence version 1.
DT 24-JAN-2024, entry version 113.
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 OrderedLocusNames=Csal_0501 {ECO:0000313|EMBL:ABE57863.1};
OS Chromohalobacter salexigens (strain ATCC BAA-138 / DSM 3043 / CIP 106854 /
OS NCIMB 13768 / 1H11).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Halomonadaceae; Chromohalobacter.
OX NCBI_TaxID=290398 {ECO:0000313|EMBL:ABE57863.1, ECO:0000313|Proteomes:UP000000239};
RN [1] {ECO:0000313|EMBL:ABE57863.1, ECO:0000313|Proteomes:UP000000239}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-138 / DSM 3043 / CIP 106854 / NCIMB 13768 / 1H11
RC {ECO:0000313|Proteomes:UP000000239};
RX PubMed=22675587; DOI=10.4056/sigs.2285059;
RA Copeland A., O'Connor K., Lucas S., Lapidus A., Berry K.W., Detter J.C.,
RA Del Rio T.G., Hammon N., Dalin E., Tice H., Pitluck S., Bruce D.,
RA Goodwin L., Han C., Tapia R., Saunders E., Schmutz J., Brettin T.,
RA Larimer F., Land M., Hauser L., Vargas C., Nieto J.J., Kyrpides N.C.,
RA Ivanova N., Goker M., Klenk H.P., Csonka L.N., Woyke T.;
RT "Complete genome sequence of the halophilic and highly halotolerant
RT Chromohalobacter salexigens type strain (1H11(T)).";
RL Stand. Genomic Sci. 5:379-388(2011).
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: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; CP000285; ABE57863.1; -; Genomic_DNA.
DR AlphaFoldDB; Q1R095; -.
DR STRING; 290398.Csal_0501; -.
DR KEGG; csa:Csal_0501; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_6; -.
DR OMA; CFGTSGP; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000000239; 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, CHLOROPLASTIC; 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}; FAD {ECO:0000256|ARBA:ARBA00022827};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630};
KW Magnesium {ECO:0000256|RuleBase:RU003591};
KW Metal-binding {ECO:0000256|RuleBase:RU003591};
KW Reference proteome {ECO:0000313|Proteomes:UP000000239};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:ABE57863.1}.
FT DOMAIN 16..130
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 207..341
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 407..556
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 585 AA; 64517 MW; 389B86E76E4ED759 CRC64;
MALAISRGEL PVELLSGADM IARFLQDEGV ERIYGYPGGA ALHIYDALFR QDKVKHILVR
HEQAATHAAD GYARASGKPG TVLVTSGPGA TNAVTGIATA YMDSIPMVVL CGQVASHLIG
EDAFQETDIV GVTRPIVKHS FAIKHPSEIP EVLKKAYYLA STGRPGPVVV DIPKDMTAPT
ERYEYVYPKK VKIRSYNPVT RGHSGQIKKA VDMMLKARRP VFYTGGGIVT SGASENLTAL
VRRLGFPITT TLMGIGAYPQ TDAQSLSWLG MHGSYEANMA MHHADLIIAI GARFDDRVTN
NTSKFCPTAK IVHVDIDPSS ISKTVRADVP IVGPADSVIN EMISLLQGRE MANAEALPEW
WATIDGWRAE REGKLYEPSQ PGERLKPQEV VEAVYHITRG EAFVTTDVGQ HQMFAAQYYK
FDKPNRWITS GGLGTMGFGF PAAMGIKQNF PDDIVVCFTG EGSFQMMMQE LSTCKQFGTG
VKIINLNNGS LGMVRQWQDL NYKSRHAHSY MESLPDFHKL IEAYGFTALK VERHDQLDAA
LERMFADNDE LVFLDVDVDP REHVYPMQVP LGAMRDMLLS KTERT
//