1ROW

Structure of SSP-19, an MSP-domain protein like family member in Caenorhabditis elegans


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of sperm-specific protein SSP-19 from Caenorhabditis elegans.

Schormann, N.Symersky, J.Luo, M.

(2004) Acta Crystallogr.,Sect.D 60: 1840-1845

  • DOI: 10.1107/S0907444904017846

  • PubMed Abstract: 
  • Structural data are reported for SSP-19, a sperm-specific protein (SSP) family member from Caenorhabditis elegans. The SSP family [also known as the major sperm protein-like (MSP-like) family] contains proteins with only 107-109 amino acids, compared ...

    Structural data are reported for SSP-19, a sperm-specific protein (SSP) family member from Caenorhabditis elegans. The SSP family [also known as the major sperm protein-like (MSP-like) family] contains proteins with only 107-109 amino acids, compared with 127 amino acids in the major sperm protein (MSP) family. MSP, the most abundant protein in nematode sperm, forms a dynamic actin-like cytoskeleton that provides the framework for the nematode sperm motility. In vivo, MSP dimers polymerize to form filaments that are constructed from two helical strands, which assemble into larger macromolecular structures. Little is known about the SSP family and a similar function is inferred from sequence and structural homology [Pfam (Protein Families Database of Alignments and HMMs) and SCOP (Structural Classification of Proteins) classification]. Despite the overall structural homology, the monomer-monomer interactions in SSP-19 are strikingly different from the interactions in the two MSP canonic domains described previously.


    Organizational Affiliation

    Southeast Collaboratory for Structural Genomics, Center for Biophysical Sciences and Engineering, University of Alabama at Birmingham, Birmingham, Alabama, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MSP-domain protein like family member
A, B
109Caenorhabditis elegansMutation(s): 0 
Gene Names: ssp-19
Find proteins for O01829 (Caenorhabditis elegans)
Go to UniProtKB:  O01829
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.225 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 52.354α = 90.00
b = 31.848β = 97.67
c = 55.577γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2003-12-23
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description