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2I2X

Crystal structure of methanol:cobalamin methyltransferase complex MtaBC from Methanosarcina barkeri

Functional Information from GO Data
ChainGOidnamespacecontents
A0005515molecular_functionprotein binding
A0008168molecular_functionmethyltransferase activity
A0016740molecular_functiontransferase activity
A0032259biological_processmethylation
A0046872molecular_functionmetal ion binding
A0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
B0005515molecular_functionprotein binding
B0005829cellular_componentcytosol
B0008168molecular_functionmethyltransferase activity
B0008705molecular_functionmethionine synthase activity
B0009086biological_processmethionine biosynthetic process
B0015948biological_processmethanogenesis
B0031419molecular_functioncobalamin binding
B0046653biological_processtetrahydrofolate metabolic process
B0046872molecular_functionmetal ion binding
B0050667biological_processhomocysteine metabolic process
B0050897molecular_functioncobalt ion binding
B0071267biological_processL-methionine salvage
C0005515molecular_functionprotein binding
C0008168molecular_functionmethyltransferase activity
C0016740molecular_functiontransferase activity
C0032259biological_processmethylation
C0046872molecular_functionmetal ion binding
C0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
D0005515molecular_functionprotein binding
D0005829cellular_componentcytosol
D0008168molecular_functionmethyltransferase activity
D0008705molecular_functionmethionine synthase activity
D0009086biological_processmethionine biosynthetic process
D0015948biological_processmethanogenesis
D0031419molecular_functioncobalamin binding
D0046653biological_processtetrahydrofolate metabolic process
D0046872molecular_functionmetal ion binding
D0050667biological_processhomocysteine metabolic process
D0050897molecular_functioncobalt ion binding
D0071267biological_processL-methionine salvage
E0005515molecular_functionprotein binding
E0008168molecular_functionmethyltransferase activity
E0016740molecular_functiontransferase activity
E0032259biological_processmethylation
E0046872molecular_functionmetal ion binding
E0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
F0005515molecular_functionprotein binding
F0005829cellular_componentcytosol
F0008168molecular_functionmethyltransferase activity
F0008705molecular_functionmethionine synthase activity
F0009086biological_processmethionine biosynthetic process
F0015948biological_processmethanogenesis
F0031419molecular_functioncobalamin binding
F0046653biological_processtetrahydrofolate metabolic process
F0046872molecular_functionmetal ion binding
F0050667biological_processhomocysteine metabolic process
F0050897molecular_functioncobalt ion binding
F0071267biological_processL-methionine salvage
G0005515molecular_functionprotein binding
G0008168molecular_functionmethyltransferase activity
G0016740molecular_functiontransferase activity
G0032259biological_processmethylation
G0046872molecular_functionmetal ion binding
G0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
H0005515molecular_functionprotein binding
H0005829cellular_componentcytosol
H0008168molecular_functionmethyltransferase activity
H0008705molecular_functionmethionine synthase activity
H0009086biological_processmethionine biosynthetic process
H0015948biological_processmethanogenesis
H0031419molecular_functioncobalamin binding
H0046653biological_processtetrahydrofolate metabolic process
H0046872molecular_functionmetal ion binding
H0050667biological_processhomocysteine metabolic process
H0050897molecular_functioncobalt ion binding
H0071267biological_processL-methionine salvage
I0005515molecular_functionprotein binding
I0008168molecular_functionmethyltransferase activity
I0016740molecular_functiontransferase activity
I0032259biological_processmethylation
I0046872molecular_functionmetal ion binding
I0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
J0005515molecular_functionprotein binding
J0005829cellular_componentcytosol
J0008168molecular_functionmethyltransferase activity
J0008705molecular_functionmethionine synthase activity
J0009086biological_processmethionine biosynthetic process
J0015948biological_processmethanogenesis
J0031419molecular_functioncobalamin binding
J0046653biological_processtetrahydrofolate metabolic process
J0046872molecular_functionmetal ion binding
J0050667biological_processhomocysteine metabolic process
J0050897molecular_functioncobalt ion binding
J0071267biological_processL-methionine salvage
K0005515molecular_functionprotein binding
K0008168molecular_functionmethyltransferase activity
K0016740molecular_functiontransferase activity
K0032259biological_processmethylation
K0046872molecular_functionmetal ion binding
K0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
L0005515molecular_functionprotein binding
L0005829cellular_componentcytosol
L0008168molecular_functionmethyltransferase activity
L0008705molecular_functionmethionine synthase activity
L0009086biological_processmethionine biosynthetic process
L0015948biological_processmethanogenesis
L0031419molecular_functioncobalamin binding
L0046653biological_processtetrahydrofolate metabolic process
L0046872molecular_functionmetal ion binding
L0050667biological_processhomocysteine metabolic process
L0050897molecular_functioncobalt ion binding
L0071267biological_processL-methionine salvage
M0005515molecular_functionprotein binding
M0008168molecular_functionmethyltransferase activity
M0016740molecular_functiontransferase activity
M0032259biological_processmethylation
M0046872molecular_functionmetal ion binding
M0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
N0005515molecular_functionprotein binding
N0005829cellular_componentcytosol
N0008168molecular_functionmethyltransferase activity
N0008705molecular_functionmethionine synthase activity
N0009086biological_processmethionine biosynthetic process
N0015948biological_processmethanogenesis
N0031419molecular_functioncobalamin binding
N0046653biological_processtetrahydrofolate metabolic process
N0046872molecular_functionmetal ion binding
N0050667biological_processhomocysteine metabolic process
N0050897molecular_functioncobalt ion binding
N0071267biological_processL-methionine salvage
O0005515molecular_functionprotein binding
O0008168molecular_functionmethyltransferase activity
O0016740molecular_functiontransferase activity
O0032259biological_processmethylation
O0046872molecular_functionmetal ion binding
O0047152molecular_functionmethanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity
P0005515molecular_functionprotein binding
P0005829cellular_componentcytosol
P0008168molecular_functionmethyltransferase activity
P0008705molecular_functionmethionine synthase activity
P0009086biological_processmethionine biosynthetic process
P0015948biological_processmethanogenesis
P0031419molecular_functioncobalamin binding
P0046653biological_processtetrahydrofolate metabolic process
P0046872molecular_functionmetal ion binding
P0050667biological_processhomocysteine metabolic process
P0050897molecular_functioncobalt ion binding
P0071267biological_processL-methionine salvage
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 501
ChainResidue
AGLU164
ACYS220
ACYS269
AK511

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 524
ChainResidue
AHIS318
AGLU320
CHIS318
CGLU320

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE K A 511
ChainResidue
AGLU164
AGLU313
AZN501
AGLU86

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN C 502
ChainResidue
CGLU164
CCYS220
CCYS269
CK512

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE K C 512
ChainResidue
CGLU86
CGLU164
CGLU313
CZN502
CHOH679

site_idAC6
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN E 503
ChainResidue
EGLU164
ECYS220
ECYS269
EK513

site_idAC7
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN E 522
ChainResidue
EHIS318
EGLU320
GHIS318
GGLU320

site_idAC8
Number of Residues4
DetailsBINDING SITE FOR RESIDUE K E 513
ChainResidue
EGLU86
EGLU164
EGLU313
EZN503

site_idAC9
Number of Residues5
DetailsBINDING SITE FOR RESIDUE ZN G 504
ChainResidue
GGLU164
GCYS220
GCYS269
GGLU313
GK514

site_idBC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE K G 514
ChainResidue
GGLU86
GGLU164
GGLU313
GZN504

site_idBC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN I 505
ChainResidue
IGLU164
ICYS220
ICYS269
IK515

site_idBC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN I 521
ChainResidue
IHIS318
IGLU320
KHIS318
KGLU320

site_idBC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE K I 515
ChainResidue
IGLU86
IGLU164
IGLU313
IZN505

site_idBC5
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN K 506
ChainResidue
KGLU164
KCYS220
KCYS269
KK516

site_idBC6
Number of Residues4
DetailsBINDING SITE FOR RESIDUE K K 516
ChainResidue
KGLU86
KGLU164
KGLU313
KZN506

site_idBC7
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN M 507
ChainResidue
MGLU164
MCYS220
MCYS269
MK517

site_idBC8
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN M 523
ChainResidue
MHIS318
MGLU320
OHIS318
OGLU320

site_idBC9
Number of Residues5
DetailsBINDING SITE FOR RESIDUE K M 517
ChainResidue
MGLU86
MGLU164
MGLU313
MZN507
MHOH615

site_idCC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN O 508
ChainResidue
OGLU164
OCYS220
OCYS269
OK518

site_idCC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE K O 518
ChainResidue
OGLU86
OGLU164
OGLU313
OZN508

site_idCC3
Number of Residues32
DetailsBINDING SITE FOR RESIDUE B13 B 500
ChainResidue
BTHR181
BLEU183
BMET184
BTHR185
BALA208
BGLY210
BGLY211
BGLY212
BGLY228
BGLU229
BGLU230
BALA231
BHOH504
BHOH512
BHOH534
CPHE321
ALYS169
AASP173
ATHR225
APHE228
AALA294
AHOH606
BGLY133
BASP134
BVAL135
BHIS136
BASP137
BILE138
BGLY139
BVAL143
BTHR179
BGLY180

site_idCC4
Number of Residues33
DetailsBINDING SITE FOR RESIDUE B13 D 500
ChainResidue
APHE321
CLYS169
CASP173
CTHR225
CPHE228
CALA294
CSER314
CHOH643
DGLY133
DASP134
DVAL135
DHIS136
DASP137
DILE138
DGLY139
DVAL143
DTHR179
DGLY180
DTHR181
DLEU183
DMET184
DTHR185
DALA208
DGLY210
DGLY211
DGLY212
DGLY228
DGLU229
DGLU230
DALA231
DHOH507
DHOH512
DHOH527

site_idCC5
Number of Residues29
DetailsBINDING SITE FOR RESIDUE B13 F 500
ChainResidue
ELYS169
EASP173
ETHR225
EPHE228
EALA294
ESER314
FGLY133
FVAL135
FHIS136
FASP137
FILE138
FGLY139
FVAL143
FTHR179
FGLY180
FTHR181
FLEU183
FMET184
FTHR185
FALA208
FCYS209
FGLY210
FGLY211
FGLY212
FGLY228
FGLU229
FGLU230
FALA231
GPHE321

site_idCC6
Number of Residues29
DetailsBINDING SITE FOR RESIDUE B13 H 500
ChainResidue
EPHE321
GLYS169
GASP173
GTHR225
GPHE228
GALA294
GSER314
HGLY133
HASP134
HVAL135
HHIS136
HASP137
HILE138
HGLY139
HVAL143
HTHR179
HGLY180
HTHR181
HLEU183
HMET184
HTHR185
HALA208
HGLY210
HGLY211
HGLY212
HGLY228
HGLU229
HGLU230
HALA231

site_idCC7
Number of Residues28
DetailsBINDING SITE FOR RESIDUE B13 J 500
ChainResidue
ILYS169
ITHR225
IPHE228
IALA294
ISER314
JGLY133
JASP134
JVAL135
JHIS136
JASP137
JILE138
JGLY139
JILE142
JTHR179
JGLY180
JTHR181
JLEU183
JMET184
JTHR185
JALA208
JGLY210
JGLY211
JGLY212
JGLY228
JGLU229
JGLU230
JALA231
KPHE321

site_idCC8
Number of Residues33
DetailsBINDING SITE FOR RESIDUE B13 L 500
ChainResidue
IPHE321
KLYS169
KASP173
KALA221
KTHR225
KPHE228
KALA294
LGLY133
LASP134
LVAL135
LHIS136
LASP137
LILE138
LGLY139
LVAL143
LTHR179
LGLY180
LTHR181
LLEU183
LMET184
LTHR185
LALA208
LGLY210
LGLY211
LGLY212
LGLY228
LGLU229
LGLU230
LALA231
LHOH501
LHOH505
LHOH507
LHOH514

site_idCC9
Number of Residues27
DetailsBINDING SITE FOR RESIDUE B13 N 500
ChainResidue
MLYS169
MTHR225
MALA294
MSER314
NGLY133
NVAL135
NHIS136
NASP137
NILE138
NGLY139
NVAL143
NTHR179
NGLY180
NTHR181
NLEU183
NMET184
NTHR185
NALA208
NGLY210
NGLY211
NGLY212
NGLY228
NGLU229
NGLU230
NALA231
NHOH518
OPHE321

site_idDC1
Number of Residues28
DetailsBINDING SITE FOR RESIDUE B13 P 500
ChainResidue
MPHE321
OLYS169
OASP173
OTHR225
OPHE228
OALA294
OSER314
OHOH592
PGLY133
PVAL135
PHIS136
PASP137
PILE138
PGLY139
PVAL143
PTHR179
PTHR181
PLEU183
PMET184
PTHR185
PALA208
PGLY210
PGLY211
PGLY212
PGLY228
PGLU229
PGLU230
PALA231

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues8
DetailsBINDING: axial binding residue
ChainResidueDetails
BHIS136
GGLU164
GCYS220
GCYS269
IGLU164
ICYS220
ICYS269
KGLU164
KCYS220
KCYS269
MGLU164
DHIS136
MCYS220
MCYS269
OGLU164
OCYS220
OCYS269
FHIS136
HHIS136
JHIS136
LHIS136
NHIS136
PHIS136
ECYS269

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
BTHR187
BHIS136
BASP134

site_idCSA10
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
DLEU147

site_idCSA11
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
FLEU147

site_idCSA12
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
HLEU147

site_idCSA13
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
JLEU147

site_idCSA14
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
LLEU147

site_idCSA15
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
NLEU147

site_idCSA16
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
PLEU147

site_idCSA2
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
DTHR187
DHIS136
DASP134

site_idCSA3
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
FTHR187
FHIS136
FASP134

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
HTHR187
HHIS136
HASP134

site_idCSA5
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
JTHR187
JHIS136
JASP134

site_idCSA6
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
LTHR187
LHIS136
LASP134

site_idCSA7
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
NTHR187
NHIS136
NASP134

site_idCSA8
Number of Residues3
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
PTHR187
PHIS136
PASP134

site_idCSA9
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bmt
ChainResidueDetails
BLEU147

237735

PDB entries from 2025-06-18

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