1G9H

TERNARY COMPLEX BETWEEN PSYCHROPHILIC ALPHA-AMYLASE, COMII (PSEUDO TRI-SACCHARIDE FROM BAYER) AND TRIS (2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL)

• PDB DOI: https://doi.org/10.2210/pdb1G9H/pdb

• Classification: HYDROLASE
• Organism(s): Pseudoalteromonas haloplanktis
• Mutation(s): No 


• Deposited: 2000-11-23 Released: 2002-06-26 
• Deposition Author(s): Aghajari, N., Roth, M., Haser, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.201 
• R-Value Work: 0.168 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 49.62 kDa 
• Atom Count: 3,822 
• Modelled Residue Count: 448 
• Deposited Residue Count: 448 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ALPHA-AMYLASE	A	448	Pseudoalteromonas haloplanktis	Mutation(s): 0  EC: 3.2.1.1
UniProt
Find proteins for P29957 (Pseudoalteromonas haloplanktis) Explore P29957  Go to UniProtKB:  P29957

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
4,6-dideoxy-4-{[(1S,5R,6S)-3-formyl-5,6-dihydroxy-4-oxocyclohex-2-en-1-yl]amino}-alpha-D-xylo-hex-5-enopyranose-(1-4)-beta-D-glucopyranose	B	2	N/A	N/A

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRS	E [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
CA	C [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
CL	D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.201 
• R-Value Work: 0.168 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.33	α = 90
b = 138.68	β = 90
c = 114.81	γ = 90

Software Package:

Software Name	Purpose
XDS	data scaling
ROTAVATA	data reduction
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
CCP4	data scaling
ROTAVATA	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-06-26 
Deposition Author(s): Aghajari, N., Roth, M., Haser, R.

Revision History  

• Version 1.0: 2002-06-26
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-04
  Changes: Refinement description
• Version 1.4: 2018-01-24
  Changes: Database references
• Version 1.5: 2018-04-04
  Changes: Data collection
• Version 1.6: 2018-04-11
  Changes: Data collection
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-08-09
  Changes: Data collection, Database references, Refinement description, Structure summary