1TYX | pdb_00001tyx

TITLE OF TAILSPIKE-PROTEIN

• PDB DOI: https://doi.org/10.2210/pdb1TYX/pdb

• Classification: VIRAL ADHESION PROTEIN
• Organism(s): Lederbergvirus P22
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1996-07-26 Released: 1997-07-23 
• Deposition Author(s): Steinbacher, S., Huber, R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Work: 
  0.183 (Depositor) 
• R-Value Observed: 
  0.183 (Depositor) 

Literature

Crystal structure of phage P22 tailspike protein complexed with Salmonella sp. O-antigen receptors.

Steinbacher, S., Baxa, U., Miller, S., Weintraub, A., Seckler, R., Huber, R.

(1996) Proc Natl Acad Sci U S A 93: 10584-10588

• PubMed: 8855221 
• DOI: https://doi.org/10.1073/pnas.93.20.10584
• Primary Citation of Related Structures:  
  1TYU, 1TYV, 1TYW, 1TYX


• PubMed Abstract: 
  

  The O-antigenic repeating units of lipopolysaccharides from Salmonella serogroups A, B, and D1 serve as receptors for the phage P22 tailspike protein, which also has receptor destroying endoglycosidase (endorhamnosidase) activity, integrating the functions of both hemagglutinin and neuraminidase in influenza virus. Crystal structures of the tailspike protein in complex with oligosaccharides, comprising two O-antigenic repeating units from Salmonella typhimurium, Salmonella enteritidis, and Salmonella typhi 253Ty were determined at 1.8 A resolution. The active-site topology with Asp-392, Asp-395, and Glu-359 as catalytic residues was identified. Kinetics of binding and cleavage suggest a role of the receptor destroying endorhamnosidase activity primarily for detachment of newly assembled phages.

---

Organizational Affiliation: 

Abteilung Strukturforschung, Max-Planck-Institut für Biochemie, Martinsried, Germany.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 60.84 kDa 
• Atom Count: 4,407 
• Modelled Residue Count: 543 
• Deposited Residue Count: 554 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TAILSPIKE PROTEIN	A	554	Lederbergvirus P22	Mutation(s): 0  Gene Names: PHAGE P22 GENE 9 EC: 3.2.1
UniProt
Find proteins for P12528 (Salmonella phage P22) Explore P12528  Go to UniProtKB:  P12528

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-galactopyranose-(1-2)-[alpha-D-Abequopyranose-(1-3)]alpha-D-mannopyranose-(1-4)-alpha-L-rhamnopyranose-(1-3)-alpha-D-galactopyranose-(1-2)-[alpha-D-Abequopyranose-(1-3)]alpha-D-mannopyranose-(1-4)-alpha-L-rhamnopyranose	B	8		N/A
Glycosylation Resources
GlyTouCan:  G56937DQ GlyCosmos:  G56937DQ

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Work:  0.183 (Depositor) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 2₁ 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 120.9	α = 90
b = 120.9	β = 90
c = 120.9	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MOSFLM	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-07-23 
Deposition Author(s): Steinbacher, S., Huber, R.

Revision History  

• Version 1.0: 1997-07-23
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Other, Structure summary
• Version 2.1: 2024-02-14
  Changes: Data collection, Database references, Structure summary