Topic: i, i+1, i+2 etc in protein secondary structure (Read 4071 times)

spirochete · « **on:** August 03, 2009, 01:19:44 AM »

I keep reading this term in papers and I forget exactly what it means. I can't find anything about it in my biochem text or by googling.

Could someone explain it and or post a link to something that does explain it? Thanks.

sjb · « **Reply #1 on:** August 03, 2009, 02:05:43 AM »

I'm not sure what it means *specifically* in secondary structure terms, but I simply thought it meant 3 amino acid residues consecutively in the sequence. So, in the polypeptide HAPPYCHRISTMAS, you could say the tyrosine is i, the cysteine i+1, and the second histidine i+2 ?

Topic: i, i+1, i+2 etc in protein secondary structure (Read 4071 times)

spirochete

i, i+1, i+2 etc in protein secondary structure

sjb

Re: i, i+1, i+2 etc in protein secondary structure

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