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1MA3

Structure of a Sir2 enzyme bound to an acetylated p53 peptide

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Transcriptional regulatory protein, Sir2 familypolymer25328537.01UniProt (O30124)
Pfam (PF02146)
Archaeoglobus fulgidusSir2-Af2
2B
(B)
Cellular tumor antigen p53polymer182139.51UniProt (P04637)Tumor suppressor p53, Phosphoprotein, p53, Antigen NY-CO-13
3C
(A)
ZINC IONnon-polymer65.41Chemie (ZN)
4D
(B)
2-(N-MORPHOLINO)-ETHANESULFONIC ACIDnon-polymer195.21Chemie (MES)
5E, F
(A, B)
waterwater18.0129Chemie (HOH)
Sequence modifications
B: 1 - 18 (UniProt: P04637)
PDBExternal DatabaseDetails
Aly 11Lys 382MODIFIED RESIDUE
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight30676.5
Non-Polymers*Number of molecules2
Total formula weight260.6
All*Total formula weight30937.2
*Water molecules are not included.

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PDB entries from 2024-10-30

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