ID G7Z274_AZOL4 Unreviewed; 587 AA.
AC G7Z274;
DT 25-JAN-2012, integrated into UniProtKB/TrEMBL.
DT 25-JAN-2012, sequence version 1.
DT 24-JAN-2024, entry version 62.
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 Name=ilvI {ECO:0000313|EMBL:CBS87457.1};
GN OrderedLocusNames=AZOLI_2237 {ECO:0000313|EMBL:CBS87457.1};
OS Azospirillum lipoferum (strain 4B).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Azospirillaceae; Azospirillum.
OX NCBI_TaxID=862719 {ECO:0000313|EMBL:CBS87457.1, ECO:0000313|Proteomes:UP000005667};
RN [1] {ECO:0000313|Proteomes:UP000005667}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=4B {ECO:0000313|Proteomes:UP000005667};
RX PubMed=22216014; DOI=10.1371/journal.pgen.1002430;
RA Wisniewski-Dye F., Borziak K., Khalsa-Moyers G., Alexandre G.,
RA Sukharnikov L.O., Wuichet K., Hurst G.B., McDonald W.H., Robertson J.S.,
RA Barbe V., Calteau A., Rouy Z., Mangenot S., Prigent-Combaret C.,
RA Normand P., Boyer M., Siguier P., Dessaux Y., Elmerich C., Condemine G.,
RA Krishnen G., Kennedy I., Paterson A.H., Gonzalez V., Mavingui P.,
RA Zhulin I.B.;
RT "Azospirillum genomes reveal transition of bacteria from aquatic to
RT terrestrial environments.";
RL PLoS Genet. 7:E1002430-E1002430(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; FQ311868; CBS87457.1; -; Genomic_DNA.
DR RefSeq; WP_014248445.1; NC_016622.1.
DR AlphaFoldDB; G7Z274; -.
DR STRING; 862719.AZOLI_2237; -.
DR KEGG; ali:AZOLI_2237; -.
DR HOGENOM; CLU_013748_1_2_5; -.
DR OMA; CFGTSGP; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000005667; 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 Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:CBS87457.1}.
FT DOMAIN 7..121
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 196..332
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 398..546
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 587 AA; 63953 MW; 5B2485E076243904 CRC64;
MSEQKLTGAQ IVIKALKDQG VDIIFGYPGG AVLPIYDALF QQNDLKHVLV RHEQAAVHAA
EGYARSTGKV GCVLVTSGPG ATNAVTGLLD ALCDSIPLVC LSGQVPTHLI GNDAFQEADT
TGITRPCTKH NYLVKDVDNL ARTLHEAFYV ARSGRPGPVL VDIPKDVQFA DGTYVPPAEV
KHKTYRPQVK PEMARIEEAI ELIANAKRPV FYTGGGVINA GPFAAKLLTQ FVKATGFPIT
STLMGLGAFP ASESQWLGML GMHGTYEANL AMYECDVMIN IGARFDDRVT GKLSAFSPGS
KKIHVDIDPS SINKNVAVDI PIVGDCGAVL EDMLRIWKAR AKSADKAALK EWWGRIEGWR
ARNCLNYNRT ESVIKPQYAL ERLREALRGK DHYITTEVGQ HQMWAAQFLP FDQPNRWLTS
GGLGTMGYGL PAAIGAQLAH PDAIVVDVSG EASFLMNMQE IGTAVQYRAP VKIFILNNQY
MGMVRQWQEL LHGSRYSQSY SEALPDFVKL AEAWGCVGLR ATTVAEVDQV IEKMLTVTDR
PCIIDIAVDP KENCFPMIPG GKAHNEILFG PDDSPSDATP EDGMVLV
//