1CPU

SUBSITE MAPPING OF THE ACTIVE SITE OF HUMAN PANCREATIC ALPHA-AMYLASE USING SUBSTRATES, THE PHARMACOLOGICAL INHIBITOR ACARBOSE, AND AN ACTIVE SITE VARIANT

Structural Biology Knowledgebase: 1CPU SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.0 Å
  • R-Value Observed: 0.170

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 1CPU

Classification: HYDROLASE

Total Structure Weight: 57072.42

Macromolecule Entities
Molecule Chains Length Organism Details
PROTEIN (ALPHA-AMYLASE) A 496 Homo sapiens EC#: 3.2.1.1 IUBMB
Mutation: Q1X
Details: MODIFIED ACARBOSE BOUND AT ACTIVE SITE
Gene Name(s): AMY2A Gene View

Small Molecules
Ligands 6 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
AGL
Query on AGL

A 4,6-DIDEOXY-4-AMINO-ALPHA-D-GLUCOSE
C6 H13 N O4
RJKBJEZZABBYBA-DVKNGEFBSA-N
Ligand Explorer
 
JSmol
CA
Query on CA

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer
 
JSmol
CL
Query on CL

A CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Ligand Explorer
 
JSmol
GLC
Query on GLC

A ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
Ligand Explorer
 
JSmol
HMC
Query on HMC

A 5-HYDROXYMETHYL-CHONDURITOL
C7 H12 O5
PJPGMULJEYSZBS-VZFHVOOUSA-N
Ligand Explorer
 
JSmol
NAG
Query on NAG

A N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Ligand Explorer
 
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: 2.0 Å
  • R-Value Observed: 0.170
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 52.91 α = 90.00
b = 68.90 β = 90.00
c = 131.77 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1999-06-07
  • Released Date: 1999-06-14
  • Deposition author(s): Brayer, G.D., Sidhu, G., Maurus, R., Rydberg, E.H., Braun, C., Wang, Y., Nguyen, N.T., Overall, C.M., Withers, S.G.

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