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BCH210H1 (62)
Midterm

BCH210 Midterm Review 1

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Department
Biochemistry
Course
BCH210H1
Professor
Charles Deber
Semester
Fall

Description
Interactions Electrostatic Hydrogen bonding- Hydrophobic interactions - Van der Waals forces - btwn between a H+ and a N drives the nonpolar aa to interactions - btwn fully charges and O atom. Stabilizing come closer together by side chains when opposite atoms the 2 structure their desire to NOT want packing closely or btwn one fully however it is not that to interact with the polar together. They pack charged and strong, ribonuclease molecules around it. Also tight but there are still one polar can easily cleave it. the polar molecules have spaces in between However when in a a greater desire to to limit them. however there is network of hydrogen interaction with non polar a limit as to how close bonds, they are aa, so the polar molecules they can get to each stronger together. push them into the middle. other. the interference This is more favourable, line. the C=O.....H-N bond higher entropy. is the hydrogen bond in sheets and helices Secondary structures alpha helix b-sheet polyproline helix - the c-c and c-n bond -formed by long peptides - found in collagen has to rotate in order to -interstand hydrogen bonds - 3 L handed polyproline helices in minimize the steric clash on diff strands a right handed coil between the r groups -antiparallel and parallel -mostly gly and pro are found in this - rotated is more E strands, in a zig zag way -gly is in
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