3BLK

Role of aromatic residues in starch binding


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure-function relationships in human salivary alpha-amylase: role of aromatic residues in a secondary binding site

Ragunath, C.Manuel, S.G.A.Kasinathan, C.Ramasubbu, N.

(2008) Biologia 63: 1028-1034


Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Alpha-amylase 1
A
496Homo sapiensMutation(s): 2 
Gene Names: AMY1A, AMY1B, AMY1C (AMY1, AMY1, AMY1)
EC: 3.2.1.1
Find proteins for P04745 (Homo sapiens)
Go to Gene View: AMY1A AMY1B AMY1C
Go to UniProtKB:  P04745
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

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Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
CA
Query on CA

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Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
AGL
Query on AGL

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Download CCD File 
A
4,6-DIDEOXY-4-AMINO-ALPHA-D-GLUCOSE
C6 H13 N O4
RJKBJEZZABBYBA-DVKNGEFBSA-N
 Ligand Interaction
GLC
Query on GLC

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Download CCD File 
A
ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
HMC
Query on HMC

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Download CCD File 
A
5-HYDROXYMETHYL-CHONDURITOL
C7 H12 O5
PJPGMULJEYSZBS-VZFHVOOUSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
A
L-PEPTIDE LINKINGC5 H7 N O3GLU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.176 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 52.282α = 90.00
b = 75.046β = 90.00
c = 135.013γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
HKL-2000data scaling
REFMACphasing
HKL-2000data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2007-12-11 
  • Released Date: 2008-11-25 
  • Deposition Author(s): Ramasubbu, N.

Revision History 

  • Version 1.0: 2008-11-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance