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3I53

Crystal structure of an O-methyltransferase (NcsB1) from neocarzinostatin biosynthesis in complex with S-adenosyl-L-homocysteine (SAH)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
O-methyltransferasepolymer33234633.12UniProt (Q84HC8)Streptomyces carzinostaticus subsp. neocarzinostaticus
2C, D
(A, B)
S-ADENOSYL-L-HOMOCYSTEINEnon-polymer384.42Chemie (SAH)
PubChem (16760024)
PubChem (193)
PubChem (13792)
PubChem (177678424)
PubChem (189149)
PubChem (439155)
PubChem (25210495)
PubChem (21125603)
PubChem (44361184)
PubChem (25203782)
PubChem (46936206)
PubChem (50989525)
PubChem (51380914)
PubChem (52224398)
PubChem (57544532)
PubChem (52224400)
PubChem (59046843)
PubChem (59170628)
PubChem (59576228)
PubChem (66805708)
PubChem (5284331)
PubChem (70689219)
PubChem (70702054)
PubChem (70832431)
PubChem (71170554)
PubChem (13231890)
PubChem (6419189)
PubChem (118374891)
PubChem (118560068)
PubChem (126969526)
PubChem (129105892)
PubChem (164157219)
PubChem (143518505)
PubChem (154578335)
PubChem (163054214)
PubChem (163335525)
3E
(B)
GLYCEROLnon-polymer92.11Chemie (GOL)
PubChem (753)
4F, G
(A, B)
waterwater18.0305Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight69266.2
Non-Polymers*Number of molecules3
Total formula weight860.9
All*Total formula weight70127.1
*Water molecules are not included.

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PDB entries from 2026-04-01

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