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2W20

Structure of the catalytic domain of the native NanA sialidase from Streptococcus pneumoniae

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
SIALIDASE Apolymer47152947.22UniProt (P62576)
Pfam (PF02012)
STREPTOCOCCUS PNEUMONIAENEURAMINIDASE A, NANA SIALIDASE
2C, H
(A, B)
2-(N-MORPHOLINO)-ETHANESULFONIC ACIDnon-polymer195.22Chemie (MES)
3D, E, I
(A, B)
CHLORIDE IONnon-polymer35.53Chemie (CL)
4F, G, J
(A, B)
GLYCEROLnon-polymer92.13Chemie (GOL)
5K, L
(A, B)
waterwater18.01025Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight105894.5
Non-Polymers*Number of molecules8
Total formula weight773.1
All*Total formula weight106667.6
*Water molecules are not included.

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PDB entries from 2025-07-30

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