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3S68

Rat COMT in complex with SAM and Tolcapone at 1.85A, P3221, Rfree=22.0

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Catechol O-methyltransferasepolymer22124772.41UniProt (P22734)
Pfam (PF01596)
Rattus norvegicus (Rat)
2B
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
PubChem (888)
3C
(A)
SULFATE IONnon-polymer96.11Chemie (SO4)
4D, E, F
(A)
CHLORIDE IONnon-polymer35.53Chemie (CL)
PubChem (312)
5G
(A)
Tolcaponenon-polymer273.21Chemie (TCW)
PubChem (4659569)
6H
(A)
S-ADENOSYLMETHIONINEnon-polymer398.41Chemie (SAM)
PubChem (58766358)
PubChem (58633578)
PubChem (87224684)
PubChem (60038769)
PubChem (131697735)
PubChem (73897310)
PubChem (5136)
PubChem (145712080)
PubChem (34755)
PubChem (132988922)
PubChem (9865603)
PubChem (134692588)
PubChem (135030730)
PubChem (140459785)
PubChem (12312798)
PubChem (163046094)
7I
(A)
waterwater18.0200Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight24772.4
Non-Polymers*Number of molecules7
Total formula weight898.4
All*Total formula weight25670.8
*Water molecules are not included.

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PDB entries from 2026-03-25

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