ID A0A1M6YYL1_9PROT Unreviewed; 697 AA.
AC A0A1M6YYL1;
DT 15-MAR-2017, integrated into UniProtKB/TrEMBL.
DT 15-MAR-2017, sequence version 1.
DT 27-MAR-2024, entry version 29.
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=SAMN05216428_101574 {ECO:0000313|EMBL:SHL23203.1};
OS Nitrosospira sp. Nsp11.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC Nitrosomonadaceae; Nitrosospira.
OX NCBI_TaxID=1855338 {ECO:0000313|EMBL:SHL23203.1, ECO:0000313|Proteomes:UP000184455};
RN [1] {ECO:0000313|Proteomes:UP000184455}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Nsp11 {ECO:0000313|Proteomes:UP000184455};
RA Varghese N., Submissions S.;
RL Submitted (NOV-2016) to the EMBL/GenBank/DDBJ databases.
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; FRBV01000001; SHL23203.1; -; Genomic_DNA.
DR RefSeq; WP_072766588.1; NZ_FRBV01000001.1.
DR AlphaFoldDB; A0A1M6YYL1; -.
DR STRING; 1855338.SAMN05216428_101574; -.
DR Proteomes; UP000184455; 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 371..553
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 697 AA; 76137 MW; BAAE870DE0F83A34 CRC64;
MTQQTQSDQL CINTLRTLSI DAVQQANSGH PGTPMGAAPT AYCLWQRFLR YDPNDPEWLN
RDRFVLSAGH ASALLYSLLY LTGVKATSPR YDKADRLAVM LDDLKSFRQA GSRCTGHPEY
GWTSGVETTT GPLGQGAATS VGMAIARQWL AATYNRPGFQ LFNNNVYALC SDGDMMEGIS
SEAASLAGHL KLADLCWIYD DNRITIEGST DLTFSEDVAA RFAAYGWHVA RVGDANDLGQ
LSHAYESFLN TSDRPTLIIV RSHIGYGAPH KHDTKEAHGE ALGAEEARLA KEFYGCDPNK
QFDVPEGVRE HFKAQFGERG TAAHAAWKLL LEAYRAQYAD LAEQIDCMQR RGVPVGWDSA
LPTFPADAKG IATRDSSGKT LNAIAEKMPW LLGGAADLAP STKTELKGKD TFYGNFQAPG
QDGKPDNSYS GRNFHFGLRE HAMCAIANGM SLSKLRPYAA SFLIFSDYAR AAIRLSAMME
IPVIYIWTHD SISLGEDGPT HQPIEQLASL RAMPGMTVLR PADANEVVEA WRVIMHYTDR
PACLILTRQA IPTLDRSRYA SASGLSRGAY ILADAENCKP EVLLLATGSE VSLCVTAYEQ
LKSAGIKARV ISMPSWELFE NQSQEYRDNV LPPEIPARVA VEEASTFGWE RYTGVAGCTL
GMRSFGLSAP GKAVAQHFGF EPGHVVAAAR EQIARHA
//
