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4SRN

STRUCTURAL CHANGES THAT ACCOMPANY THE REDUCED CATALYTIC EFFICIENCY OF TWO SEMISYNTHETIC RIBONUCLEASE ANALOGS

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
RIBONUCLEASE Apolymer11312495.01UniProt (P61823)
Pfam (PF00074)
Bos taurus (cattle)
2B
(B)
RIBONUCLEASE Apolymer111187.41UniProt (P61823)Bos taurus (cattle)
3C
(B)
SULFATE IONnon-polymer96.11Chemie (SO4)
4D, E
(A, B)
waterwater18.0111Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight13682.3
Non-Polymers*Number of molecules1
Total formula weight96.1
All*Total formula weight13778.4
*Water molecules are not included.

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PDB entries from 2025-12-10

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