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4FEL

Crystal structure of the U25A/A46G mutant of the xpt-pbuX guanine riboswitch aptamer domain in complex with hypoxanthine

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(B)
U25A/A46G mutant of the B. subtilis xpt-pbuX guanine riboswitch aptamer domainpolymer6721545.81
2B
(B)
HYPOXANTHINEnon-polymer136.11Chemie (HPA)
3C
(B)
ACETATE IONnon-polymer59.01Chemie (ACT)
4D, E, F, G, H...
(B)
COBALT HEXAMMINE(III)non-polymer161.19Chemie (NCO)
5M
(B)
waterwater18.0611Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight21545.8
Non-Polymers*Number of molecules11
Total formula weight1645.2
All*Total formula weight23191.0
*Water molecules are not included.

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PDB entries from 2025-06-18

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