Chameleon peptide
From Proteopedia
(Difference between revisions)
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== Seeing is believing == | == Seeing is believing == | ||
| - | To simplify the figure, the entire IgG-Binding domain<ref>PMID:1871600 </ref> is colored <scene name='61/611445/Cartoon_beige/1'>beige</scene>. | + | To simplify the figure, the entire IgG-Binding domain<ref>PMID:1871600 </ref> is colored <scene name='61/611445/Cartoon_beige/1'>beige</scene>. Now, if the amino acids residues, <scene name='61/611445/Cartoon_pink_23-33/1'>23-33</scene>, are changed to the ''Chameleon'' sequence i.e. <span style="color:#FFFFFF; background:#FF69B4">AWTVEKAFKTF</span style>, virtually no change in structure is seen. |
| - | + | ||
Specifically the WT sequence in yellow (residues 23-33) is changed to Chameleon sequence shown in pink, , n.b. only 5 AA's have been changed in this region<br /> | Specifically the WT sequence in yellow (residues 23-33) is changed to Chameleon sequence shown in pink, , n.b. only 5 AA's have been changed in this region<br /> | ||
<font face=Courier> | <font face=Courier> | ||
| - | WT: | + | WT: {{spaces|6}} TTYKLILNGKTLKGETTTEAVD<span style="color:#000000; background:#FFFF00">AATAEKVFKQY</span style>ANDNGVDGEWTYDDATKTFTVTEK<br /> |
Mutated: TTYKLILNGKTLKGETTTEAVD<span style="color:#FFFFFF; background:#FF69B4">AWTVEKAFKTF</span style>ANDNGVDGEWTYDDATKTFTVTEK</font face> | Mutated: TTYKLILNGKTLKGETTTEAVD<span style="color:#FFFFFF; background:#FF69B4">AWTVEKAFKTF</span style>ANDNGVDGEWTYDDATKTFTVTEK</font face> | ||
Revision as of 17:34, 1 December 2014
Does the amino acid sequence really determine the 3D structure of a peptide?')
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References
- ↑ Minor DL Jr, Kim PS. Context-dependent secondary structure formation of a designed protein sequence. Nature. 1996 Apr 25;380(6576):730-4. PMID:8614471 doi:http://dx.doi.org/10.1038/380730a0
- ↑ Zhou X, Alber F, Folkers G, Gonnet GH, Chelvanayagam G. An analysis of the helix-to-strand transition between peptides with identical sequence. Proteins. 2000 Nov 1;41(2):248-56. PMID:10966577
- ↑ Gronenborn AM, Filpula DR, Essig NZ, Achari A, Whitlow M, Wingfield PT, Clore GM. A novel, highly stable fold of the immunoglobulin binding domain of streptococcal protein G. Science. 1991 Aug 9;253(5020):657-61. PMID:1871600
