2QMJ

Crystral Structure of the N-terminal Subunit of Human Maltase-Glucoamylase in Complex with Acarbose


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.215
  • R-Value Work: 0.177

Literature

Macromolecules
Sequence Display for 2QMJ

Classification: HYDROLASE

Total Structure Weight: 101041.34

Macromolecule Entities
Molecule Chains Length Organism Details
Maltase-glucoamylase, intestinal A 870 Homo sapiens EC#: 3.2.1 IUBMB
Fragment: SEQUENCE DATABASE RESIDUES 87-954
Gene Name(s): MGAM Gene View MGA Gene View MGAML
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 4 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
ACR
Query on ACR

A ALPHA-ACARBOSE
1,4-DEOXY-4-((5-HYDROXYMETHYL-2,3,4-TRIHYDROXYCYCLOHEX- 5,6-ENYL)AMINO)FRUCTOSE (Synonym)
C25 H43 N O18
XUFXOAAUWZOOIT-WVJZLWNXSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NAG
Query on NAG

A, X N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
SO4
Query on SO4

A SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
GOL
Query on GOL

A GLYCEROL
2, (Synonym)
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
ACR N/A in BindingDB
Ki: 62000 nM  BindingMOAD
Ki: 62000 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.215
  • R-Value Work: 0.177
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 86.97 α = 90.00
b = 109.37 β = 90.00
c = 109.27 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2007-07-16
  • Released Date: 2008-01-08
  • Deposition author(s): Sim, L., Rose, D.R.

Revision History

  • Version 1_0: 2008-01-08

    Type: Initial release

  • Version 1_1: 2011-07-13

    Type: Non-polymer description, Version format compliance