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Helices

Helices

Plural of helix.


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how predict which aminoacid form secondary structure

hi all How do predict what types of secondary structure (left alpha helices, right alpha helices, parallel beta sheet, anti parallel beta sheet) from amino acid sequence? Reply as soon as possible

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by kanagasundar
Thu Nov 29, 2012 2:49 pm
 
Forum: General Discussion
Topic: how predict which aminoacid form secondary structure
Replies: 2
Views: 1548

Formation of helices in heterogeneous protein vs. homogeneou

What is the main difference of helices in a heterogeneous protein compared to homogeneous protein, other than the propensity for helices being sequence dependent. Relate it to the coil-helix transition, fractional helicity and melting temperature.

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by JordanGo
Fri Oct 19, 2012 8:16 pm
 
Forum: Cell Biology
Topic: Formation of helices in heterogeneous protein vs. homogeneou
Replies: 0
Views: 1126

Collect the cytoplasmic loop segments from 7TM receptors

You need to determine, which segments are membrane-spanning helices. The rest are the extra-membranous loops. What I remember about 7TM proteins, one of them should be considerably longer and that's the one you are looking for ;)

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by JackBean
Mon Apr 02, 2012 10:07 am
 
Forum: Bioinformatics
Topic: Collect the cytoplasmic loop segments from 7TM receptors
Replies: 1
Views: 2433

Re: Protein structure

... means the beta sheet, I think it's marked E) However, there are more secondary structures, than just alpha-helix and beta-sheet. There are several helices (e.g. pi-helix, left-handed helix etc.), also several turns etc. Anyway, the primary structure says only the sequence, as above.The secondary ...

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by JackBean
Thu Sep 29, 2011 8:51 am
 
Forum: Molecular Biology
Topic: Protein structure
Replies: 4
Views: 13040

Protein alignment agains all known databases

... PrositeScan. If you look for some signals as cleavage sites and postranslational modifications or wonder if your protein contains trans-membrane helices, try the applications on: http://www.cbs.dtu.dk/services/

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by verginov
Wed Sep 21, 2011 8:23 am
 
Forum: Bioinformatics
Topic: Protein alignment agains all known databases
Replies: 11
Views: 6524
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