1OWQ

Crystal structure of a 40 kDa signalling protein (SPC-40) secreted during involution

• PDB DOI: https://doi.org/10.2210/pdb1OWQ/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2003-03-29 Released: 2004-05-18 
• Deposition Author(s): Kumar, J., Sharma, S., Jasti, J., Bhushan, A., Singh, T.P.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.240 (Depositor) 
• R-Value Work: 
  0.203 (Depositor) 
• R-Value Observed: 
  0.203 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of a 40 kDa signalling protein (SPC-40) secreted during involution

Kumar, J., Sharma, S., Jasti, J., Bhushan, A., Singh, T.P.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 41.29 kDa 
• Atom Count: 3,154 
• Modelled Residue Count: 361 
• Deposited Residue Count: 361 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
signal processing protein	A	361	Bos taurus	Mutation(s): 0
UniProt
Find proteins for P30922 (Bos taurus) Explore P30922  Go to UniProtKB:  P30922
Glycosylation
Glycosylation Sites: 1

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G99124KT GlyCosmos:  G99124KT GlyGen:  G99124KT

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.240 (Depositor) 
• R-Value Work:  0.203 (Depositor) 
• R-Value Observed: 0.203 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.149	α = 90
b = 67.018	β = 90
c = 107.812	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-05-18 
Deposition Author(s): Kumar, J., Sharma, S., Jasti, J., Bhushan, A., Singh, T.P.

Revision History  

• Version 1.0: 2004-05-18
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2018-07-25
  Changes: Advisory, Data collection, Database references, Source and taxonomy
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-10-25
  Changes: Data collection, Database references, Refinement description, Structure summary
• Version 2.2: 2024-10-30
  Changes: Structure summary