BIBC 100 Discussion M 2-3 week 2

BIBC 100 Discussion M 2-3 week 2 - the hair fiber, where...

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Onur Erbilgin oerbilgi@ucsd.edu Problem Set 1 OH: 4-5pm Mandeville CC 1) Draw what the amino acid will look like (which groups are protonated) at each labeled point, and the overall charge of the aa at each labeled point. 2) With respect to an α-helix of the sequence N—AAAAAAAA—C, are the following α-helices more or less stable, and why? All Sequences are written N to C terminus, left to right. Sequence EAAEAAAA DAAAAAAK AAPAAAGA RAAAAAAE ARAAADAA AAWAAAWA More/Less Reason 3) (based off Lehn. 4-3) Hair grows at a rate of 0.3 mm/day. All this growth is concentrated at the base of
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Unformatted text preview: the hair fiber, where -keratin filaments are synthesized inside living epidermal cells and assembled into ropelike structures. The fundamental structural element of -keratin is the -helix. Using what you know about the dimensions of an -helix, about how many amino acids would be added to a hair in one day, and what would the estimated MW be for these added amino acids? You only need to set up this problem. Glutamate Histidine A B C D A B C D A B D C A B C D...
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This note was uploaded on 04/29/2010 for the course PSYCH PSYCH 179 taught by Professor Koob during the Fall '09 term at UCSD.

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