2QMK

Human pancreatic alpha-amylase complexed with nitrite

Structural Biology Knowledgebase: 2QMK SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.218
  • R-Value Work: 0.172

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 2QMK

Classification: HYDROLASE

Total Structure Weight: 56239.18

Macromolecule Entities
Molecule Chains Length Organism Details
Pancreatic alpha-amylase A 496 Homo sapiens EC#: 3.2.1.1 IUBMB
Mutation: Q1X
Gene Name(s): AMY2A Gene View
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

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

A N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NO2
Query on NO2

A NITRITE ION
N O2
IOVCWXUNBOPUCH-UHFFFAOYSA-M
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
Modified Residues 1 Unique
ID Chains Type Formula 2D Diagram Parent
PCA
Query on PCA
A L-PEPTIDE LINKING C5 H7 N O3 GLU

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.218
  • R-Value Work: 0.172
  • Space Group: P 21 21 21
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 51.68 α = 90.00
b = 67.60 β = 90.00
c = 129.38 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2007-07-16
  • Released Date: 2008-03-25
  • Deposition author(s): Williams, L.K., Maurus, R., Brayer, G.D.

Revision History

  • 2011-07-13
    Type: Non-polymer description | Details: chemical name/synonym update
  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4