Structure of PDB 1mht Chain A Binding Site BS03

Receptor Information
>1mht Chain A (length=327) Species: 726 (Haemophilus haemolyticus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MIEIKDKQLTGLRFIDLFAGLGGFRLALESCGAECVYSNEWDKYAQEVYE
MNFGEKPEGDITQVNEKTIPDHDILCAGFPCQAFSISGKQKGFEDSRGTL
FFDIARIVREKKPKVVFMENVKNFASHDNGNTLEVVKNTMNELDYSFHAK
VLNALDYGIPQKRERIYMICFRNDLNIQNFQFPKPFELNTFVKDLLLPDS
EVEHLVIDRKDLVMTNQEIEQTTPKTVRLGIVGKGGQGERIYSTRGIAIT
LSAYGGGIFAKTGGYLVNGKTRKLHPRECARVMGYPDSYKVHPSTSQAYK
QFGNSVVINVLQYIAYNIGSSLNFKPY
Ligand information
Ligand IDSAH
InChIInChI=1S/C14H20N6O5S/c15-6(14(23)24)1-2-26-3-7-9(21)10(22)13(25-7)20-5-19-8-11(16)17-4-18-12(8)20/h4-7,9-10,13,21-22H,1-3,15H2,(H,23,24)(H2,16,17,18)/t6-,7+,9+,10+,13+/m0/s1
InChIKeyZJUKTBDSGOFHSH-WFMPWKQPSA-N
SMILES
SoftwareSMILES
CACTVS 3.341N[CH](CCSC[CH]1O[CH]([CH](O)[CH]1O)n2cnc3c(N)ncnc23)C(O)=O
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)C3C(C(C(O3)CSCCC(C(=O)O)N)O)O)N
CACTVS 3.341N[C@@H](CCSC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n2cnc3c(N)ncnc23)C(O)=O
ACDLabs 10.04O=C(O)C(N)CCSCC3OC(n2cnc1c(ncnc12)N)C(O)C3O
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CSCC[C@@H](C(=O)O)N)O)O)N
FormulaC14 H20 N6 O5 S
NameS-ADENOSYL-L-HOMOCYSTEINE
ChEMBLCHEMBL418052
DrugBankDB01752
ZINCZINC000004228232
PDB chain1mht Chain A Residue 328 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1mht HhaI methyltransferase flips its target base out of the DNA helix.
Resolution2.6 Å
Binding residue
(original residue number in PDB)		F18 A19 L21 G23 E40 W41 D60 I61 N304 S305
Binding residue
(residue number reindexed from 1)		F18 A19 L21 G23 E40 W41 D60 I61 N304 S305
Annotation score5
Enzymatic activity
Catalytic site (original residue number in PDB) C81 E119 R163 R165
Catalytic site (residue number reindexed from 1) C81 E119 R163 R165
Enzyme Commision number 2.1.1.37: DNA (cytosine-5-)-methyltransferase.
Gene Ontology
Molecular Function
GO:0003677 DNA binding
GO:0003886 DNA (cytosine-5-)-methyltransferase activity
GO:0008168 methyltransferase activity
Biological Process
GO:0009307 DNA restriction-modification system
GO:0032259 methylation

View graph for
Molecular Function
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Biological Process
External links
PDB RCSB:1mht, PDBe:1mht, PDBj:1mht
PDBsum1mht
PubMed8293469
UniProtP05102|MTH1_HAEPH Type II methyltransferase M.HhaI (Gene Name=hhaIM)

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