Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

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

Macromolecule Content

• Total Structure Weight: 35682.49 
• Atom Count: 2218 
• Residue Count: 312 
• Unique protein chains: 2

1FIW

THREE-DIMENSIONAL STRUCTURE OF BETA-ACROSIN FROM RAM SPERMATOZOA

• DOI: 10.2210/pdb1FIW/pdb

• Classification: HYDROLASE
• Organism(s): Ovis aries


• 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: 2.1 Å
• R-Value Free: 0.242 
• R-Value Work: 0.197 

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 Fold.Des. 8: 1179-1188

• PubMed: 11080640 
• Primary Citation of Related Structures:  
  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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Related Citations: 

• Three Dimensional Structure of Acrosin from Ram and Boar Spermatozoa
  Tranter, R.
  () TO BE PUBLISHED --: --




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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
BETA-ACROSIN HEAVY CHAIN	A	290	Ovis aries	Mutation(s): 0  Gene Names: ACR EC: 3.4.21.10
Find proteins for Q9GL10 (Ovis aries) Go to Gene View: ACR Go to UniProtKB:  Q9GL10

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
BETA-ACROSIN LIGHT CHAIN	L	22	Ovis aries	Mutation(s): 0  Gene Names: ACR EC: 3.4.21.10
Find proteins for Q9GL10 (Ovis aries) Go to Gene View: ACR Go to UniProtKB:  Q9GL10

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
MAN	A	ALPHA-D-MANNOSE C6 H12 O6 WQZGKKKJIJFFOK-PQMKYFCFSA-N
BMA	A	BETA-D-MANNOSE C6 H12 O6 WQZGKKKJIJFFOK-RWOPYEJCSA-N
PBZ	A	P-AMINO BENZAMIDINE C7 H10 N3 WPANETAWYGDRLL-UHFFFAOYSA-O
NAG	A	N-ACETYL-D-GLUCOSAMINE C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
FUL	A	BETA-L-FUCOSE 6-DEOXY-BETA-L-GALACTOSE C6 H12 O5 SHZGCJCMOBCMKK-KGJVWPDLSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.1 Å
• R-Value Free: 0.242 
• R-Value Work: 0.197 
• Space Group: P 6₅ 2 2

Unit Cell:

Length (Å)	Angle (°)
a = 105.288	α = 90.00
b = 105.288	β = 90.00
c = 120.835	γ = 120.00

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-08-07 
• 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
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Non-polymer description, Version format compliance
• Version 1.3: 2018-01-31
  Type: Advisory, Experimental preparation