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3F4H

Crystal structure of the FMN riboswitch bound to roseoflavin

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(X)
FMN riboswitchpolymer5417455.41GenBank (20095250)
2B
(Y)
FMN riboswitchpolymer5618092.81GenBank (20095250)
3C, M
(X, Y)
POTASSIUM IONnon-polymer39.12Chemie (K)
4D, E, F, G, H...
(X, Y)
MAGNESIUM IONnon-polymer24.311Chemie (MG)
5L
(Y)
1-deoxy-1-[8-(dimethylamino)-7-methyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl]-D-ribitolnon-polymer405.41Chemie (RS3)
6Q
(X)
waterwater18.01Chemie (HOH)
Sequence modifications
X: 3 - 54 (GenBank: 20095250)
PDBExternal DatabaseDetails
G 1-insertion
G 2-insertion
C 52U 2544engineered mutation
U 53A 2545engineered mutation
Y: 57 - 109 (GenBank: 20095250)
PDBExternal DatabaseDetails
U 110-insertion
U 111-insertion
C 112-insertion
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight35548.2
Non-Polymers*Number of molecules14
Total formula weight751.0
All*Total formula weight36299.1
*Water molecules are not included.

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PDB entries from 2025-06-18

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