Find Proteins of Unknown Structure - Fast & Easy

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SUMMARY

The discussion focuses on locating proteins of unknown structure, emphasizing that most proteins indeed lack a determined 3D structure. The ExPASy Molecular Biology Server serves as the primary online repository for protein sequences, while the Protein Data Bank (PDB) is the go-to source for 3D protein structures derived from methods like x-ray crystallography and NMR. Users are advised to search for proteins in ExPASy and then verify their structural status in the PDB. Additional resources include the Scripps Metallo database for specialized protein information.

PREREQUISITES
  • Understanding of protein structure terminology (primary, secondary, tertiary, quaternary).
  • Familiarity with the ExPASy Molecular Biology Server.
  • Knowledge of the Protein Data Bank (PDB) and its usage.
  • Basic concepts of protein determination methods such as x-ray crystallography and NMR.
NEXT STEPS
  • Explore the ExPASy Molecular Biology Server for protein sequence data.
  • Investigate the Protein Data Bank (PDB) for available 3D structures.
  • Research protein determination techniques like x-ray crystallography and NMR.
  • Examine the Scripps Metallo database for specialized protein information.
USEFUL FOR

Researchers in structural biology, bioinformaticians, and anyone involved in protein characterization and analysis will benefit from this discussion.

karthik3k
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I want a list of Proteins of Unknown structure...
Where shall i find it ?
 
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Don't most proteins have an unknown 3D (tertiary or quarternairy) structure? Or are you talking about the aminoacid (primary) structure?
 
The online repository for protein sequences is the ExPASy Molecular Biology Server. The online repository for 3-D protein structures (determined by x-ray crystallography, NMR, etc.) is the Protein Data Bank .

Insofar as I know, there is no convenient listing of proteins without an experimentally determined 3-D structure. Your best bet is to find a protein in the ExPASy files and then check the PDB to see if there is a structure available. Trust me, a little bit of hard work never killed anyone. :)

You may also want to take a look at the http://metallo.scripps.edu/ at Scripps if you're interested in that sort of thing.
 
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