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1YC5

Sir2-p53 peptide-nicotinamide

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
NAD-dependent deacetylasepolymer24627569.81UniProt (Q9WYW0)
Pfam (PF02146)
Thermotoga maritimaRegulatory protein SIR2 homolog
2B
(B)
Cellular tumor antigen p53 peptidepolymer182139.51UniProt (Q9NP68)
UniProt (by SIFTS) (P04637)
Tumor suppressor p53, Phosphoprotein p53, Antigen NY-CO-13
3C
(A)
ZINC IONnon-polymer65.41Chemie (ZN)
4D
(A)
NICOTINAMIDEnon-polymer122.11Chemie (NCA)
5E, F
(A, B)
waterwater18.0266Chemie (HOH)
Sequence modifications
B: 372 - 389 (UniProt: Q9NP68)
PDBExternal DatabaseDetails
Aly 382Lys 382modified residue
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight29709.3
Non-Polymers*Number of molecules2
Total formula weight187.5
All*Total formula weight29896.8
*Water molecules are not included.

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PDB entries from 2025-07-30

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