8F9Q

Guinea pig sialic acid esterase (SIAE)

• PDB DOI: https://doi.org/10.2210/pdb8F9Q/pdb

• Classification: HYDROLASE
• Organism(s): Cavia porcellus
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2022-11-24 Released: 2024-05-29 
• Deposition Author(s): Ide, D., Gorelik, A., Illes, K., Nagar, B.
• Funding Organization(s): Canadian Institutes of Health Research (CIHR)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.76 Å
• R-Value Free: 0.204 
• R-Value Work: 0.188 
• R-Value Observed: 0.188 

Starting Model: experimental

Literature

Guinea pig sialic acid esterase (SIAE)

Ide, D., Gorelik, A., Illes, K., Nagar, B.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 120.26 kDa 
• Atom Count: 8,285 
• Modelled Residue Count: 990 
• Deposited Residue Count: 1,010 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sialic acid acetylesterase	A, B	505	Cavia porcellus	Mutation(s): 0  Gene Names: SIAE EC: 3.1.1.53
UniProt
Find proteins for H0VB40 (Cavia porcellus) Explore H0VB40  Go to UniProtKB:  H0VB40
Glycosylation
Glycosylation Sites: 4

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	C, G	5		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42466VF GlyCosmos:  G42466VF GlyGen:  G42466VF

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D, F, H, J	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G81315DD GlyCosmos:  G81315DD GlyGen:  G81315DD

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	E, I	5		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G22768VO GlyCosmos:  G22768VO GlyGen:  G22768VO

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.76 Å
• R-Value Free: 0.204 
• R-Value Work: 0.188 
• R-Value Observed: 0.188 
• Space Group: P 6₄

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 206.554	α = 90
b = 206.554	β = 90
c = 155.19	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-05-29 
Deposition Author(s): Ide, D., Gorelik, A., Illes, K., Nagar, B.

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Funding Organization	Location	Grant Number
Canadian Institutes of Health Research (CIHR)	Canada	250057

Revision History  

• Version 1.0: 2024-05-29
  Type: Initial release