1BB5

HUMAN LYSOZYME MUTANT A96L COMPLEXED WITH CHITOTRIOSE

• PDB DOI: https://doi.org/10.2210/pdb1BB5/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Komagataella pastoris
• Mutation(s): Yes 


• Deposited: 1998-04-28 Released: 1998-08-12 
• Deposition Author(s): Headley, A.G., Roe, S.M., Pearl, L.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.260 
• R-Value Work: 0.200 
• R-Value Observed: 0.200 

Starting Model: experimental

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30.78 kDa 
• Atom Count: 2,439 
• Modelled Residue Count: 260 
• Deposited Residue Count: 260 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
LYSOZYME	A, B	130	Homo sapiens	Mutation(s): 1  EC: 3.2.1.17
UniProt & NIH Common Fund Data Resources
Find proteins for P61626 (Homo sapiens) Explore P61626  Go to UniProtKB:  P61626
PHAROS:  P61626 GTEx:  ENSG00000090382

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	C, D	3		N/A
Glycosylation Resources
GlyTouCan:  G47362BJ GlyCosmos:  G47362BJ GlyGen:  G47362BJ

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900017	C, D	triacetyl-beta-chitotriose	Oligosaccharide / Inhibitor

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.260 
• R-Value Work: 0.200 
• R-Value Observed: 0.200 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.94	α = 90
b = 64.81	β = 90
c = 109.14	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
CCP4	data reduction
AMoRE	phasing
X-PLOR	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-08-12 
Deposition Author(s): Headley, A.G., Roe, S.M., Pearl, L.H.

Revision History  

• Version 1.0: 1998-08-12
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2021-11-03
  Changes: Database references, Structure summary
• Version 2.2: 2023-08-02
  Changes: Refinement description