1FIZ

THREE DIMENSIONAL STRUCTURE OF BETA-ACROSIN FROM BOAR SPERMATOZOA

• PDB DOI: https://doi.org/10.2210/pdb1FIZ/pdb

• Classification: HYDROLASE
• Organism(s): Sus scrofa
• Mutation(s): No 


• Deposited: 2000-08-07 Released: 2000-11-08 
• Deposition Author(s): Tranter, R., Read, J.A., Jones, R., Brady, R.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.265 
• R-Value Work: 0.212 

Literature

Effector sites in the three-dimensional structure of mammalian sperm beta-acrosin.

Tranter, R., Read, J.A., Jones, R., Brady, R.L.

(2000) Structure 8: 1179-1188

• PubMed: 11080640 
• DOI: https://doi.org/10.1016/s0969-2126(00)00523-2
• Primary Citation of Related Structures:  
  1FIW, 1FIZ


• PubMed Abstract: 
  

  Proacrosin is a serine protease found specifically within the acrosomal vesicle of all mammalian spermatozoa. During fertilization proacrosin autoactivates to form beta-acrosin, in which there is a "light" chain cross-linked to a "heavy" chain by two disulphide bonds. beta-acrosin is thought to be multifunctional with roles in acrosomal exocytosis, as a receptor for zona pellucida proteins, and as a protease to facilitate penetration of spermatozoa into the egg.

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Organizational Affiliation: 

Department of Biochemistry University of Bristol BS8 1TD, Bristol, United Kingdom.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 33.1 kDa 
• Atom Count: 2,256 
• Modelled Residue Count: 276 
• Deposited Residue Count: 286 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-ACROSIN HEAVY CHAIN	A	263	Sus scrofa	Mutation(s): 0
UniProt
Find proteins for P08001 (Sus scrofa) Explore P08001  Go to UniProtKB:  P08001

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-ACROSIN LIGHT CHAIN	B [auth L]	23	Sus scrofa	Mutation(s): 0
UniProt
Find proteins for P08001 (Sus scrofa) Explore P08001  Go to UniProtKB:  P08001

Oligosaccharides

Help

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-[beta-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	C [auth B]	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G53389HW GlyCosmos:  G53389HW GlyGen:  G53389HW

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PBZ	H [auth A]	P-AMINO BENZAMIDINE C7 H10 N3 WPANETAWYGDRLL-UHFFFAOYSA-O
SO4	D [auth A], E [auth A], F [auth A], G [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.265 
• R-Value Work: 0.212 
• Space Group: P 4₃ 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 130.64	α = 90
b = 130.64	β = 90
c = 130.64	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-11-08 
Deposition Author(s): Tranter, R., Read, J.A., Jones, R., Brady, R.L.

Revision History  

• Version 1.0: 2000-11-08
  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: 2018-01-31
  Changes: Advisory, Experimental preparation
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary