Question: (Closed) Four protein structures
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5 weeks ago by
hisham.alhawal0 wrote:

Please show full work and indicate which programs, servers, and databases were used!

Find four protein structures containing the following sequence motif and having sequence homology of less than 70%. Sequence motif: L or I or V -I or Vor M- any two residues -F - L or I or M- any residue Q G.

(a) Are these four proteins related? (b) Are all the proteins containing this motif related? (c) What is the secondary structure assignment for the residues in this motif? (d) Measure the distances betwcen Co atoms of the first and the last residues of this motif in all four structures. Interpret the results of the measurements.

Recently discovered life forms from the planet X143-AD in the star cluster Eridani contain DNA with four types of nucleotides, and proteins composed of 75 different types of monomers. What is the likely size of a codon in their genetic code? How the structure of their proteins compares to ours? Compare the numbers of a-helices, ß-strands, and B-turms in human and chicken cystatin. Explain the results.

sequence • 105 views
ADD COMMENTlink written 5 weeks ago by hisham.alhawal0
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What are your expectations posting your exam / home-work questions here?

ADD REPLYlink written 5 weeks ago by h.mon22k
1

Hello hisham.alhawal!

We believe that this post does not fit the main topic of this site.

For this reason we have closed your question. This allows us to keep the site focused on the topics that the community can help with.

If you disagree please tell us why in a reply below, we'll be happy to talk about it.

Cheers!

ADD REPLYlink modified 5 weeks ago by zx87546.2k • written 5 weeks ago by Michael Dondrup45k
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