2QV4

Human pancreatic alpha-amylase complexed with nitrite and acarbose

Structural Biology Knowledgebase: 2QV4 SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.224
  • R-Value Work: 0.176

Literature

Macromolecules
Sequence Display for 2QV4

Classification: HYDROLASE

Total Structure Weight: 57046.94

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 4 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
QV4
Query on QV4

A 4,6-dideoxy-4-{[(1S,4R,5R,6S)-4-{[alpha-D- glucopyranosyl-(1->4)-alpha-D-glucopyranosyl- (1->4)-alpha-D-glucopyranosyl]oxy}-5,6-dihydroxy- 3-(hydroxymethyl)cyclohex-2-en-1-yl]amino}- alpha-D-glucopyranose
C31 H53 N O23
SPMGVWYYOZMEBD-NPPSNIQKSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NAG
Query on NAG

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

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

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
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: 1.97 Å
  • R-Value Free: 0.224
  • R-Value Work: 0.176
  • Space Group: P 21 21 21
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 51.86 α = 90.00
b = 67.72 β = 90.00
c = 130.10 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2007-08-07
  • Released Date: 2008-03-25
  • Deposition author(s): Williams, L.K., Maurus, R., Brayer, G.D.

Revision History

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