Structure of PDB 2adm Chain A Binding Site BS01

Receptor Information
>2adm Chain A (length=385) Species: 271 (Thermus aquaticus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
VETPPEVVDFMVSLAEAPRGGRVLEPACAHGPFLRAFREAHGTGYRFVGV
EIDPKALDLPPWAEGILADFLLWEPGEAFDLILGNPPYGIVGVFKAVKDL
YKKAFSTWKGKYNLYGAFLEKAVRLLKPGGVLVFVVPATWLVLEDFALLR
EFLAREGKTSVYYLGEVFPQKKVSAVVIRFQKSGKGLSLWDTQESESGFT
PILWAEYPHWEGEIIRFETEETRKLEISGMPLGDLFHIRFAARSPEFKKH
PAVRKEPGPGLVPVLTGRNLKPGWVDYEKNHSGLWMPKERAKELRDFYAT
PHLVVAHTKGTRVVAAWDERAYPWREEFHLLPKEGVRLDPSTLVQWLNSE
AMQKHVRTLYRDFVPHLTLRMLERLPVRREYGFHT
Ligand information
Ligand IDSAM
InChIInChI=1S/C15H22N6O5S/c1-27(3-2-7(16)15(24)25)4-8-10(22)11(23)14(26-8)21-6-20-9-12(17)18-5-19-13(9)21/h5-8,10-11,14,22-23H,2-4,16H2,1H3,(H2-,17,18,19,24,25)/t7-,8+,10+,11+,14+,27-/m0/s1
InChIKeyMEFKEPWMEQBLKI-FCKMPRQPSA-N
SMILES
SoftwareSMILES
CACTVS 3.341C[S@@+](CC[C@H](N)C([O-])=O)C[C@H]1O[C@H]([C@H](O)[C@@H]1O)n2cnc3c(N)ncnc23
OpenEye OEToolkits 1.5.0C[S+](CCC(C(=O)[O-])N)CC1C(C(C(O1)n2cnc3c2ncnc3N)O)O
CACTVS 3.341C[S+](CC[CH](N)C([O-])=O)C[CH]1O[CH]([CH](O)[CH]1O)n2cnc3c(N)ncnc23
OpenEye OEToolkits 1.5.0C[S@@+](CC[C@@H](C(=O)[O-])N)C[C@@H]1[C@H]([C@H]([C@@H](O1)n2cnc3c2ncnc3N)O)O
ACDLabs 10.04[O-]C(=O)C(N)CC[S+](C)CC3OC(n2cnc1c(ncnc12)N)C(O)C3O
FormulaC15 H22 N6 O5 S
NameS-ADENOSYLMETHIONINE
ChEMBLCHEMBL1235831
DrugBank
ZINC
PDB chain2adm Chain A Residue 500 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB2adm Differential binding of S-adenosylmethionine S-adenosylhomocysteine and Sinefungin to the adenine-specific DNA methyltransferase M.TaqI.
Resolution2.6 Å
Binding residue
(original residue number in PDB)		A47 C48 P52 E71 I72 D89 F90 N105 P107
Binding residue
(residue number reindexed from 1)		A27 C28 P32 E51 I52 D69 F70 N85 P87
Annotation score5
Enzymatic activity
Catalytic site (original residue number in PDB) N105 P106 Y108 F196
Catalytic site (residue number reindexed from 1) N85 P86 Y88 F168
Enzyme Commision number 2.1.1.72: site-specific DNA-methyltransferase (adenine-specific).
Gene Ontology
Molecular Function
GO:0003676 nucleic acid binding
GO:0003677 DNA binding
GO:0008168 methyltransferase activity
GO:0009007 site-specific DNA-methyltransferase (adenine-specific) activity
Biological Process
GO:0006304 DNA modification
GO:0009307 DNA restriction-modification system
GO:0032259 methylation

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:2adm, PDBe:2adm, PDBj:2adm
PDBsum2adm
PubMed8995524
UniProtP14385|MTTA_THEAQ Type II methyltransferase M.TaqI (Gene Name=taqIM)

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