Structure of PDB 5lqa Chain A

Receptor sequence
>5lqaA (length=213) Species: 10116 (Rattus norvegicus) [Search protein sequence]
DTKEQRILRYVQQNAKPGDPQSVLEAIDTYCTQKEWAMNVGDAKGQIMDA
VIREYSPSLVLELGAYCGYSAVRMARLLQPGARLLTMEMNPDYAAITQQM
LNFAGLQDKVTILNGASQDLIPQLKKKYDVDTLDMVFLDHWKDRYLPDTL
LLEKCGLLRKGTVLLADNVIVPGTPDFLAYVRGSSSFECTHYSSYLEYMK
VVDGLEKAIYQGP
3D structure
PDB5lqa rat catechol O-methyltransferase at high pH in complex with a bisubstrate inhibitor
ChainA
Resolution1.2 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D141 K144 D169 N170 E199
Catalytic site (residue number reindexed from 1) D139 K142 D167 N168 E197
Enzyme Commision number 2.1.1.6: catechol O-methyltransferase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 619 A W38 M40 Y68 E90 M91 S119 Q120 D141 H142 W143 K144 N170 P174 L198 E199 W36 M38 Y66 E88 M89 S117 Q118 D139 H140 W141 K142 N168 P172 L196 E197
BS02 MG A D141 D169 N170 D139 D167 N168
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0008171 O-methyltransferase activity
GO:0016206 catechol O-methyltransferase activity
Biological Process
GO:0006584 catecholamine metabolic process

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Molecular Function
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Biological Process
External links
PDB RCSB:5lqa, PDBe:5lqa, PDBj:5lqa
PDBsum5lqa
PubMed
UniProtP22734|COMT_RAT Catechol O-methyltransferase (Gene Name=Comt)

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