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Database: UniProt
Entry: A0A243SAG6_9ACTN
LinkDB: A0A243SAG6_9ACTN
Original site: A0A243SAG6_9ACTN 
ID   A0A243SAG6_9ACTN        Unreviewed;       695 AA.
AC   A0A243SAG6;
DT   25-OCT-2017, integrated into UniProtKB/TrEMBL.
DT   25-OCT-2017, sequence version 1.
DT   24-JAN-2024, entry version 32.
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=CA983_03445 {ECO:0000313|EMBL:OUD04608.1};
OS   Streptomyces swartbergensis.
OC   Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC   Streptomycetaceae; Streptomyces.
OX   NCBI_TaxID=487165 {ECO:0000313|EMBL:OUD04608.1, ECO:0000313|Proteomes:UP000195105};
RN   [1] {ECO:0000313|EMBL:OUD04608.1, ECO:0000313|Proteomes:UP000195105}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HMC13 {ECO:0000313|EMBL:OUD04608.1};
RA   Le Roes-Hill M., Prins A., Durrell K.A.;
RT   "Biotechnological potential of actinobacteria isolated from South African
RT   environments.";
RL   Submitted (MAY-2017) 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}.
CC   -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:OUD04608.1}.
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DR   EMBL; NGFN01000010; OUD04608.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A243SAG6; -.
DR   Proteomes; UP000195105; Unassembled WGS sequence.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProt.
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; 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          24..44
FT                   /note="Transketolase signature 1"
FT                   /evidence="ECO:0000259|PROSITE:PS00801"
SQ   SEQUENCE   695 AA;  75034 MW;  01106607484CFD2B CRC64;
     MSTKPTTTDL EWTELDQRAV DTARVLAADA VQKVGNGHPG TAMSLAPAAY TLFQKVMRHD
     PADADWVGRD RFVLSAGHSS LTLYTQLYLA GFGLELDDLK SFRTWGSKTP GHPEYGHTTG
     VETTTGPLGQ GVANAVGMAM AARYERGLFD PEAPEGESPF DHFIYCIAGD GCLQEGISAE
     ASSLAGHQKL GNLILLWDDN HISIEGDTET AVSEDTALRY EAYGWHVQRV EPQANGDLDP
     AAIFEAIQKA KAVTDKPSFI AMRSIIAWPA PNAQNTEAAH GSALGEDEVA ATKRVLGFDP
     EQSFEVAGEV IEHTRKALER GQAARAVWEK AYQQWRDNNP ERAAEYDRVA KGELPTGWEE
     KIPVFEVGKG VATRAASGKV LQALGAVVPE LWGGSADLAG SNNTTIDKTS SFLPADNPLP
     EADPYGRTIH FGIREHAMAA EMNGIALHGN TRIYGGTFLV FSDYMRNAVR LSALMHLPVT
     YVWTHDSIGL GEDGPTHQPV EHLASLRAIP GLNIVRPADA NETAIAWREI LRRWTKEFGK
     GQPHGLALTR QGVPTYEPDD DAAKGGYVLF EADGGEPDVI LIATGSEVHV AVEAREQLQG
     AGVPTRVVSM PCVEWFEQQD QGYRDSVLPP SVKARVAVEA GVGLTWHKYV GDAGRIVSLE
     HFGASADGKV LFREFGFTAE NVAAAARESI AAAQR
//
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