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4KXW

Human transketolase in covalent complex with donor ketose D-xylulose-5-phosphate, crystal 2

Functional Information from GO Data
ChainGOidnamespacecontents
A0000287molecular_functionmagnesium ion binding
A0004802molecular_functiontransketolase activity
A0005509molecular_functioncalcium ion binding
A0005515molecular_functionprotein binding
A0005654cellular_componentnucleoplasm
A0005737cellular_componentcytoplasm
A0005777cellular_componentperoxisome
A0005829cellular_componentcytosol
A0006098biological_processpentose-phosphate shunt
A0009052biological_processpentose-phosphate shunt, non-oxidative branch
A0016604cellular_componentnuclear body
A0016607cellular_componentnuclear speck
A0016740molecular_functiontransferase activity
A0016744molecular_functiontransketolase or transaldolase activity
A0019682biological_processglyceraldehyde-3-phosphate metabolic process
A0030976molecular_functionthiamine pyrophosphate binding
A0031982cellular_componentvesicle
A0042803molecular_functionprotein homodimerization activity
A0046166biological_processglyceraldehyde-3-phosphate biosynthetic process
A0046872molecular_functionmetal ion binding
A0070062cellular_componentextracellular exosome
A1901159biological_processD-xylulose 5-phosphate biosynthetic process
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 1001
ChainResidue
AASP155
AASN185
ALEU187
ATPP1015
AHOH7001

site_idAC2
Number of Residues8
DetailsBINDING SITE FOR RESIDUE EDO A 1002
ChainResidue
APHE71
AARG379
AHOH7186
AHOH7847
APRO63
AASN68
AASP69
AARG70

site_idAC3
Number of Residues7
DetailsBINDING SITE FOR RESIDUE EDO A 1003
ChainResidue
ATYR564
AALA588
AASN590
AHOH7051
AHOH7055
AHOH7126
AHOH7247

site_idAC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE EDO A 1004
ChainResidue
APHE71
AVAL72
ALEU73
ALEU82
APHE117
AHOH7040
AHOH7056
AHOH7068

site_idAC5
Number of Residues13
DetailsBINDING SITE FOR RESIDUE EDO A 1005
ChainResidue
AASP155
AGLY156
ALEU158
ASER159
ATRP164
APRO194
ALEU195
ATYR202
AARG205
AEDO1012
AHOH7467
AHOH7960
AHOH7961

site_idAC6
Number of Residues7
DetailsBINDING SITE FOR RESIDUE EDO A 1006
ChainResidue
ALEU92
ALEU107
AGLN115
AHOH7110
AHOH7124
AHOH7174
AHOH7920

site_idAC7
Number of Residues4
DetailsBINDING SITE FOR RESIDUE EDO A 1007
ChainResidue
AGLN10
AASN590
AARG591
AHOH7260

site_idAC8
Number of Residues6
DetailsBINDING SITE FOR RESIDUE EDO A 1008
ChainResidue
ATYR137
ATYR141
ATYR173
AHOH7409
AHOH7610
AHOH7914

site_idAC9
Number of Residues8
DetailsBINDING SITE FOR RESIDUE EDO A 1009
ChainResidue
AALA33
AARG101
AGLU423
ALYS597
AHOH7103
AHOH7586
AHOH7742
AHOH7934

site_idBC1
Number of Residues10
DetailsBINDING SITE FOR RESIDUE EDO A 1010
ChainResidue
AARG21
ASER25
AALA84
AGLU88
AGLU94
ALEU97
ALYS283
AHOH7177
AHOH7472
AHOH7672

site_idBC2
Number of Residues7
DetailsBINDING SITE FOR RESIDUE EDO A 1011
ChainResidue
APHE142
AASP333
AARG358
AHOH7406
AHOH7539
AHOH7700
AHOH7894

site_idBC3
Number of Residues10
DetailsBINDING SITE FOR RESIDUE EDO A 1012
ChainResidue
ALEU158
ASER159
ATRP164
ATRP164
AGLU165
AALA168
APHE209
AEDO1005
AEDO1014
AHOH7961

site_idBC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE NA A 1013
ChainResidue
AASN411
AALA461
ATHR464
ACYS468
AHOH7070
AHOH7081

site_idBC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE EDO A 1014
ChainResidue
ASER159
AGLU165
AALA168
AEDO1012
AHOH7467
AHOH7715

site_idBC6
Number of Residues26
DetailsBINDING SITE FOR RESIDUE TPP A 1015
ChainResidue
ASER40
ALYS75
AHIS77
AGLY123
ASER124
ALEU125
AGLY154
AASP155
AGLY156
AGLU157
AGLU160
AASN185
ALEU187
AGLY188
AGLN189
ALYS244
AHIS258
AASP341
AILE364
AGLU366
APHE392
AARG395
AGLN428
AMG1001
ADX51016
AHOH7001

site_idBC7
Number of Residues19
DetailsBINDING SITE FOR RESIDUE DX5 A 1016
ChainResidue
AHIS37
AHIS77
AHIS110
AGLN189
AHIS258
ASER345
APHE389
AHIS416
AASP424
AGLN428
AARG474
ATPP1015
ADX51017
AHOH7053
AHOH7095
AHOH7108
AHOH7246
AHOH7263
AHOH7299

site_idBC8
Number of Residues14
DetailsBINDING SITE FOR RESIDUE DX5 A 1017
ChainResidue
AHIS37
AGLN189
AHIS258
AARG318
ASER345
AHIS416
AASP424
AARG474
ADX51016
AHOH7108
AHOH7246
AHOH7263
AHOH7272
AHOH7299

Functional Information from PROSITE/UniProt
site_idPS00801
Number of Residues21
DetailsTRANSKETOLASE_1 Transketolase signature 1. RissIQattaagSGHPTscCS
ChainResidueDetails
AARG23-SER43

site_idPS00802
Number of Residues17
DetailsTRANSKETOLASE_2 Transketolase signature 2. GEDGPSQmALEdlAmfR
ChainResidueDetails
AGLY422-ARG438

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton donor","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues6
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues12
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsSite: {"description":"Important for catalytic activity","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues7
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"19608861","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues2
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"UniProtKB","id":"P40142","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues1
DetailsModified residue: {"description":"Phosphotyrosine","evidences":[{"source":"PubMed","id":"19690332","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"20068231","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"PubMed","id":"19690332","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"20068231","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"18669648","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"20068231","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"P50137","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues2
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)","evidences":[{"source":"PubMed","id":"28112733","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

247947

PDB entries from 2026-01-21

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