ID H0G9L3_RHIML Unreviewed; 660 AA.
AC H0G9L3;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 27-MAR-2024, entry version 58.
DE RecName: Full=Transketolase {ECO:0000256|ARBA:ARBA00013152, ECO:0000256|RuleBase:RU004996};
DE EC=2.2.1.1 {ECO:0000256|ARBA:ARBA00013152, ECO:0000256|RuleBase:RU004996};
GN ORFNames=SM0020_31102 {ECO:0000313|EMBL:EHK74017.1};
OS Sinorhizobium meliloti CCNWSX0020.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium.
OX NCBI_TaxID=1107881 {ECO:0000313|EMBL:EHK74017.1, ECO:0000313|Proteomes:UP000004038};
RN [1] {ECO:0000313|EMBL:EHK74017.1, ECO:0000313|Proteomes:UP000004038}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCNWSX0020 {ECO:0000313|EMBL:EHK74017.1,
RC ECO:0000313|Proteomes:UP000004038};
RX PubMed=22328762; DOI=10.1128/JB.06682-11;
RA Li Z., Ma Z., Hao X., Wei G.;
RT "Draft Genome Sequence of Sinorhizobium meliloti CCNWSX0020, a Nitrogen-
RT Fixing Symbiont with Copper Tolerance Capability Isolated from Lead-Zinc
RT Mine Tailings.";
RL J. Bacteriol. 194:1267-1268(2012).
CC -!- FUNCTION: Catalyzes the transfer of a two-carbon ketol group from a
CC ketose donor to an aldose acceptor, via a covalent intermediate with
CC the cofactor thiamine pyrophosphate. {ECO:0000256|RuleBase:RU004996}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-glyceraldehyde 3-phosphate + D-sedoheptulose 7-phosphate =
CC aldehydo-D-ribose 5-phosphate + D-xylulose 5-phosphate;
CC Xref=Rhea:RHEA:10508, ChEBI:CHEBI:57483, ChEBI:CHEBI:57737,
CC ChEBI:CHEBI:58273, ChEBI:CHEBI:59776; EC=2.2.1.1;
CC Evidence={ECO:0000256|ARBA:ARBA00001027,
CC ECO:0000256|RuleBase:RU004996};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Note=Binds 1 Mg(2+) ion per subunit. Can also utilize other divalent
CC metal cations, such as Ca(2+), Mn(2+) and Co(2+).
CC {ECO:0000256|RuleBase:RU004996};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Note=Binds 1 thiamine pyrophosphate per subunit.
CC {ECO:0000256|RuleBase:RU004996};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738,
CC ECO:0000256|RuleBase:RU004996}.
CC -!- SIMILARITY: Belongs to the transketolase family.
CC {ECO:0000256|ARBA:ARBA00007131, ECO:0000256|RuleBase:RU004996}.
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DR EMBL; AGVV01000105; EHK74017.1; -; Genomic_DNA.
DR RefSeq; WP_003535989.1; NZ_AGVV01000105.1.
DR AlphaFoldDB; H0G9L3; -.
DR GeneID; 61604224; -.
DR PATRIC; fig|1107881.3.peg.6284; -.
DR Proteomes; UP000004038; Unassembled WGS sequence.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004802; F:transketolase activity; IEA:UniProtKB-EC.
DR CDD; cd07033; TPP_PYR_DXS_TK_like; 1.
DR CDD; cd02012; TPP_TK; 1.
DR Gene3D; 3.40.50.920; -; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR009014; Transketo_C/PFOR_II.
DR InterPro; IPR005475; Transketolase-like_Pyr-bd.
DR InterPro; IPR005478; Transketolase_bac-like.
DR InterPro; IPR020826; Transketolase_BS.
DR InterPro; IPR033248; Transketolase_C.
DR InterPro; IPR049557; Transketolase_CS.
DR InterPro; IPR033247; Transketolase_fam.
DR InterPro; IPR005474; Transketolase_N.
DR NCBIfam; TIGR00232; tktlase_bact; 1.
DR PANTHER; PTHR43522; TRANSKETOLASE; 1.
DR PANTHER; PTHR43522:SF2; TRANSKETOLASE 1-RELATED; 1.
DR Pfam; PF02779; Transket_pyr; 1.
DR Pfam; PF02780; Transketolase_C; 1.
DR Pfam; PF00456; Transketolase_N; 1.
DR SMART; SM00861; Transket_pyr; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
DR SUPFAM; SSF52922; TK C-terminal domain-like; 1.
DR PROSITE; PS00801; TRANSKETOLASE_1; 1.
DR PROSITE; PS00802; TRANSKETOLASE_2; 1.
PE 3: Inferred from homology;
KW Calcium {ECO:0000256|RuleBase:RU004996};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|RuleBase:RU004996};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU004996};
KW Thiamine pyrophosphate {ECO:0000256|ARBA:ARBA00023052,
KW ECO:0000256|RuleBase:RU004996};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004996}.
FT DOMAIN 352..524
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 660 AA; 71265 MW; 444657409987EE42 CRC64;
MISREKHDRM ANAIRFLSMD AVEKANSGHP GLPMGAADIA TVLFTRYLSF DPKNPAWPNR
DRFVLSAGHG SMLLYSLLYL TGYDDITIDE IKNFRQLGSR TAGHPEYGHA AGIETTTGPL
GQGIANSVGM AIAERKLREE FGSELMEHYT YVLAGDGCLM EGISQEAIAL AGHLKLNKLI
VFWDDNNISI DGPISIADST DQHARFRASK WHTIAVDGHD PEAIAAAIEE AHKSDKPTMI
ACKTVIGFGA PNKAGTHKVH GSPLGAEEIA ATRKALGWEA EAFTVPSDVL DAWRIAGLRS
AKARKEWEER LEAAEAEKKA QFVRRFSGEL EGSLASAIGA YKQKLAETKP SPATRKASED
ALEVINGVLA ETIGGSADLT GSNNTKTSQT HSITPDDFSG RYIHYGVREH GMAAAMNGMA
LHGGLIPYSG GFLIFSDYCR PSIRLAALMG IRVIHVLTHD SIGLGEDGPT HQPVEHMAAL
RAIPNLLMFR PADATETAEC WQLALENRKR PSGLALTRQN LMAVRTEYEE QNLCARGAYD
LISASDAQVT IFATGSEVEI AVKACQTLTA KGIATRVVSV PCFELFAEQS EDYQQAIIGT
SPVKIAVEAG IRQGWDHFIG NDGIFIGMSS FGASGPYKDL YKHFGITPEV VVASAEAKLS
//
