1MA3

Structure of a Sir2 enzyme bound to an acetylated p53 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.0 Å
  • R-Value Free: 0.254
  • R-Value Work: 0.209

Literature

Macromolecules
Sequence Display for 1MA3

Classification: PROTEIN BINDING TRANSCRIPTION

Total Structure Weight: 30937.17

Macromolecule Entities
Molecule Chains Length Organism Details
Transcriptional regulatory protein, Sir2 family A 253 Archaeoglobus fulgidus EC#: 3.5.1 IUBMB
Gene Name(s): cobB2 Sir2Af2 AF_0112
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
Cellular tumor antigen p53 B 18 Homo sapiens Fragment: Regulatory C-terminal tail (residues 372-389)
Mutation: K11X
Details: acetylated peptide from regulatory C-terminal tail
Gene Name(s): TP53 Gene View P53
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
MES
Query on MES

B 2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
ZN
Query on ZN

A ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
Modified Residues 1 Unique
ID Chains Type Formula 2D Diagram Parent
ALY
Query on ALY
B L-PEPTIDE LINKING C8 H16 N2 O3 LYS

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.0 Å
  • R-Value Free: 0.254
  • R-Value Work: 0.209
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 34.89 α = 90.00
b = 35.59 β = 90.00
c = 184.68 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2002-07-31
  • Released Date: 2002-10-16
  • Deposition author(s): Avalos, J.L., Celic, I., Muhammad, S., Cosgrove, M.S., Boeke, J.D., Wolberger, C.

Revision History

  • 2008-04-28
    Type: Version format compliance
  • 2011-07-13
    Type: Version format compliance