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6SMN

A. thaliana serine hydroxymethyltransferase isoform 2 (AtSHMT2) in complex with methotrexate

Functional Information from GO Data
ChainGOidnamespacecontents
A0004372molecular_functionglycine hydroxymethyltransferase activity
A0005739cellular_componentmitochondrion
A0006544biological_processglycine metabolic process
A0006563biological_processL-serine metabolic process
A0006730biological_processone-carbon metabolic process
A0008270molecular_functionzinc ion binding
A0009507cellular_componentchloroplast
A0009536cellular_componentplastid
A0016740molecular_functiontransferase activity
A0019264biological_processglycine biosynthetic process from L-serine
A0030170molecular_functionpyridoxal phosphate binding
A0035999biological_processtetrahydrofolate interconversion
A0045271cellular_componentrespiratory chain complex I
A0046653biological_processtetrahydrofolate metabolic process
A0050897molecular_functioncobalt ion binding
B0004372molecular_functionglycine hydroxymethyltransferase activity
B0005739cellular_componentmitochondrion
B0006544biological_processglycine metabolic process
B0006563biological_processL-serine metabolic process
B0006730biological_processone-carbon metabolic process
B0008270molecular_functionzinc ion binding
B0009507cellular_componentchloroplast
B0009536cellular_componentplastid
B0016740molecular_functiontransferase activity
B0019264biological_processglycine biosynthetic process from L-serine
B0030170molecular_functionpyridoxal phosphate binding
B0035999biological_processtetrahydrofolate interconversion
B0045271cellular_componentrespiratory chain complex I
B0046653biological_processtetrahydrofolate metabolic process
B0050897molecular_functioncobalt ion binding
C0004372molecular_functionglycine hydroxymethyltransferase activity
C0005739cellular_componentmitochondrion
C0006544biological_processglycine metabolic process
C0006563biological_processL-serine metabolic process
C0006730biological_processone-carbon metabolic process
C0008270molecular_functionzinc ion binding
C0009507cellular_componentchloroplast
C0009536cellular_componentplastid
C0016740molecular_functiontransferase activity
C0019264biological_processglycine biosynthetic process from L-serine
C0030170molecular_functionpyridoxal phosphate binding
C0035999biological_processtetrahydrofolate interconversion
C0045271cellular_componentrespiratory chain complex I
C0046653biological_processtetrahydrofolate metabolic process
C0050897molecular_functioncobalt ion binding
D0004372molecular_functionglycine hydroxymethyltransferase activity
D0005739cellular_componentmitochondrion
D0006544biological_processglycine metabolic process
D0006563biological_processL-serine metabolic process
D0006730biological_processone-carbon metabolic process
D0008270molecular_functionzinc ion binding
D0009507cellular_componentchloroplast
D0009536cellular_componentplastid
D0016740molecular_functiontransferase activity
D0019264biological_processglycine biosynthetic process from L-serine
D0030170molecular_functionpyridoxal phosphate binding
D0035999biological_processtetrahydrofolate interconversion
D0045271cellular_componentrespiratory chain complex I
D0046653biological_processtetrahydrofolate metabolic process
D0050897molecular_functioncobalt ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues21
Detailsbinding site for residue PLS A 601
ChainResidue
ASER82
AHIS260
ATHR283
AHIS285
ALYS286
AARG430
AHOH773
BTYR102
BGLU104
BTYR112
BGLY330
ASER148
BGLY331
BHOH2677
AGLY149
ASER150
AHIS177
AALA231
ASER232
AASP257
AALA259

site_idAC2
Number of Residues6
Detailsbinding site for residue EDO A 602
ChainResidue
AALA169
AASP171
AHIS180
AGLY181
ATHR198
AMET199

site_idAC3
Number of Residues17
Detailsbinding site for residue MTX A 603
ChainResidue
ATYR182
ATHR184
ATHR186
AILE189
AASN413
ALYS414
AALA423
AEDO605
AEDO615
AHOH829
AHOH916
AHOH1007
AHOH1028
BGLU104
BTYR111
BPHE325
BHOH2704

site_idAC4
Number of Residues7
Detailsbinding site for residue EDO A 604
ChainResidue
AGLN126
ALEU130
AGLY141
AVAL142
AHOH728
AHOH793
AHOH841

site_idAC5
Number of Residues8
Detailsbinding site for residue EDO A 605
ChainResidue
ALEU172
AGLY176
AHIS177
ALEU178
ASER232
AMTX603
AHOH851
BHOH2531

site_idAC6
Number of Residues8
Detailsbinding site for residue EDO A 606
ChainResidue
APRO151
APHE154
AHOH714
AHOH736
AHOH753
AHOH1054
BPRO151
BPHE154

site_idAC7
Number of Residues7
Detailsbinding site for residue EDO A 607
ChainResidue
APRO504
ATHR505
AGLU509
AEDO610
AHOH820
AHOH822
BASN52

site_idAC8
Number of Residues6
Detailsbinding site for residue EDO A 608
ChainResidue
AALA159
ALEU160
ALEU161
ALYS162
AARG319
AHOH885

site_idAC9
Number of Residues4
Detailsbinding site for residue EDO A 609
ChainResidue
AGLU61
AASP64
AHOH718
AHOH948

site_idAD1
Number of Residues7
Detailsbinding site for residue EDO A 610
ChainResidue
AGLU509
ALYS510
AGLU511
AEDO607
AHOH820
DLYS307
DGLY309

site_idAD2
Number of Residues3
Detailsbinding site for residue EDO A 611
ChainResidue
AARG110
ATYR111
BLYS414

site_idAD3
Number of Residues6
Detailsbinding site for residue EDO A 612
ChainResidue
AHOH962
AILE210
AASP211
ATYR212
AASP213
AHOH732

site_idAD4
Number of Residues4
Detailsbinding site for residue EDO A 613
ChainResidue
AARG348
APRO350
ALYS353
AHOH716

site_idAD5
Number of Residues6
Detailsbinding site for residue EDO A 614
ChainResidue
ALEU55
AASP56
AALA63
AGLU67
AHOH845
AHOH934

site_idAD6
Number of Residues4
Detailsbinding site for residue EDO A 615
ChainResidue
AMET424
AMTX603
AHOH918
BTYR111

site_idAD7
Number of Residues3
Detailsbinding site for residue EDO A 616
ChainResidue
ALYS414
BALA109
BARG110

site_idAD8
Number of Residues4
Detailsbinding site for residue EDO A 617
ChainResidue
ALYS188
AILE189
BGLN322
BHOH2719

site_idAD9
Number of Residues4
Detailsbinding site for residue EDO B 2401
ChainResidue
AGLN322
AHOH959
BLYS188
BILE189

site_idAE1
Number of Residues22
Detailsbinding site for residue PLS B 2402
ChainResidue
ATYR102
AGLU104
ATYR112
AGLY330
AGLY331
AHOH897
BSER82
BSER148
BGLY149
BSER150
BHIS177
BALA231
BSER232
BASP257
BALA259
BHIS260
BTHR283
BHIS285
BLYS286
BARG430
BHOH2602
BHOH2810

site_idAE2
Number of Residues6
Detailsbinding site for residue EDO B 2403
ChainResidue
BLEU170
BHIS180
BGLY181
BTHR198
BMET199
BPRO200

site_idAE3
Number of Residues10
Detailsbinding site for residue MTX B 2404
ChainResidue
AGLU104
ATYR111
BTYR182
BTHR184
BASP185
BTHR186
BASN413
BLYS414
BHOH2638
BHOH2778

site_idAE4
Number of Residues7
Detailsbinding site for residue EDO B 2405
ChainResidue
BGLN126
BLEU130
BGLY141
BVAL142
BHOH2542
BHOH2559
BHOH2633

site_idAE5
Number of Residues5
Detailsbinding site for residue EDO B 2406
ChainResidue
BTYR375
BLYS394
BASP454
BLYS458
BHOH2746

site_idAE6
Number of Residues5
Detailsbinding site for residue EDO B 2407
ChainResidue
AMET120
BASP64
BILE65
BLEU68
BHOH2729

site_idAE7
Number of Residues3
Detailsbinding site for residue EDO B 2408
ChainResidue
BTRP140
BPHE274
BHOH2723

site_idAE8
Number of Residues6
Detailsbinding site for residue EDO B 2409
ChainResidue
BALA159
BLEU160
BLEU161
BLYS162
BARG319
BHOH2613

site_idAE9
Number of Residues5
Detailsbinding site for residue EDO B 2410
ChainResidue
BASP211
BTYR212
BASP213
BHOH2502
BHOH2538

site_idAF1
Number of Residues3
Detailsbinding site for residue EDO B 2411
ChainResidue
BGLN134
BLEU135
BASP136

site_idAF2
Number of Residues2
Detailsbinding site for residue EDO B 2412
ChainResidue
AGLU311
BGLN502

site_idAF3
Number of Residues22
Detailsbinding site for residue PLS C 601
ChainResidue
CSER82
CSER148
CGLY149
CSER150
CHIS177
CALA231
CSER232
CASP257
CALA259
CHIS260
CTHR283
CHIS285
CLYS286
CARG430
CHOH816
CHOH1049
DTYR102
DGLU104
DTYR112
DGLY330
DGLY331
DHOH982

site_idAF4
Number of Residues8
Detailsbinding site for residue EDO C 602
ChainResidue
CILE167
CALA169
CHIS180
CGLY181
CTHR198
CMET199
CPRO200
CHOH714

site_idAF5
Number of Residues9
Detailsbinding site for residue MTX C 603
ChainResidue
CTYR182
CTHR184
CASP185
CTHR186
CLYS414
CALA423
DGLU104
DTYR111
DHOH812

site_idAF6
Number of Residues6
Detailsbinding site for residue EDO C 604
ChainResidue
CTRP140
CPHE274
CARG299
CHOH922
CHOH967
CHOH1030

site_idAF7
Number of Residues5
Detailsbinding site for residue EDO C 605
ChainResidue
CGLU61
CASP64
CHOH745
CHOH999
DMET120

site_idAF8
Number of Residues5
Detailsbinding site for residue EDO C 606
ChainResidue
CLYS471
CLEU472
CLYS473
CHOH765
CHOH1043

site_idAF9
Number of Residues6
Detailsbinding site for residue EDO C 607
ChainResidue
AGLU368
ATHR369
CVAL269
CASP357
CHOH769
CHOH920

site_idAG1
Number of Residues3
Detailsbinding site for residue EDO C 608
ChainResidue
CARG236
CHOH840
CHOH979

site_idAG2
Number of Residues9
Detailsbinding site for residue EDO C 609
ChainResidue
CPRO151
CPHE154
CLEU328
CHOH717
CHOH867
CHOH930
DPRO151
DPHE154
DHOH842

site_idAG3
Number of Residues5
Detailsbinding site for residue EDO C 610
ChainResidue
CTYR375
CLYS394
CASP454
CLYS458
CHOH710

site_idAG4
Number of Residues4
Detailsbinding site for residue EDO C 611
ChainResidue
CASP445
CTYR499
CGLN502
CHOH739

site_idAG5
Number of Residues5
Detailsbinding site for residue EDO C 612
ChainResidue
CGLY95
CHOH782
DMET91
DGLY95
DHOH886

site_idAG6
Number of Residues6
Detailsbinding site for residue EDO C 613
ChainResidue
CTHR505
CGLU509
CLYS510
CGLU511
CHOH770
CHOH848

site_idAG7
Number of Residues5
Detailsbinding site for residue EDO C 614
ChainResidue
CALA159
CLEU160
CLYS162
CARG319
CHOH863

site_idAG8
Number of Residues1
Detailsbinding site for residue EDO C 615
ChainResidue
CARG44

site_idAG9
Number of Residues6
Detailsbinding site for residue EDO C 616
ChainResidue
CGLN322
CALA323
CHOH911
DLYS187
DLYS188
DILE189

site_idAH1
Number of Residues8
Detailsbinding site for residue MTX C 617
ChainResidue
AARG223
CTYR111
DTHR184
DASP185
DILE189
DLYS414
DMET424
DHOH934

site_idAH2
Number of Residues4
Detailsbinding site for residue EDO C 618
ChainResidue
CLYS188
CILE189
DGLN322
DHOH1031

site_idAH3
Number of Residues9
Detailsbinding site for residue EDO D 701
ChainResidue
DALA169
DASP171
DHIS180
DGLY181
DTHR198
DMET199
DPRO200
DHOH902
DHOH1049

site_idAH4
Number of Residues8
Detailsbinding site for residue SER D 702
ChainResidue
CTYR102
CGLU104
CTYR112
DSER82
DSER232
DHIS260
DLLP286
DARG430

site_idAH5
Number of Residues7
Detailsbinding site for residue EDO D 703
ChainResidue
DGLN126
DLEU130
DGLY141
DVAL142
DHOH918
DHOH939
DHOH1009

site_idAH6
Number of Residues3
Detailsbinding site for residue EDO D 704
ChainResidue
DTRP140
DPHE274
DHOH978

site_idAH7
Number of Residues9
Detailsbinding site for residue EDO D 705
ChainResidue
DASN206
DTHR207
DGLY208
DVAL378
DSER379
DGLY380
DHOH888
DHOH892
DHOH973

site_idAH8
Number of Residues7
Detailsbinding site for residue EDO D 706
ChainResidue
CASP376
CASN393
DALA71
DLYS75
DTYR515
DGLU517
DHOH829

site_idAH9
Number of Residues5
Detailsbinding site for residue EDO D 707
ChainResidue
DTYR276
DALA277
DARG299
DTYR314
DHOH801

site_idAI1
Number of Residues6
Detailsbinding site for residue EDO D 708
ChainResidue
DALA159
DLEU160
DLEU161
DLYS162
DARG319
DHOH874

site_idAI2
Number of Residues5
Detailsbinding site for residue EDO D 709
ChainResidue
DARG72
DGLU78
DGLU83
DASN84
DPHE85

Functional Information from PROSITE/UniProt
site_idPS00096
Number of Residues17
DetailsSHMT Serine hydroxymethyltransferase pyridoxal-phosphate attachment site. DVvTTTTHKSLrGPRGA
ChainResidueDetails
DASP278-ALA294
AASP278-ALA294

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues44
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"31873125","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"6SMN","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"6SMW","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues12
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"31873125","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"6SMN","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"31873125","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"6SMW","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsModified residue: {"description":"N6-(pyridoxal phosphate)lysine","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

250359

PDB entries from 2026-03-11

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