Lecture 3

Lecture 3 - Quaternary structure: more than 1 polypeptide...

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Glyciene and proleine Cysteine is both polar and nonpolar Glycine – smallest, space filler, introduces kinkiness and flexibility Praline – big and inflexible Cysteine – polar and nonpolar Primary structure: amino acid order Secondary structure: (alpha helix) coiling or (beta pleated) pleating, hydrogen bonds in backbone Tertiary structure: r group adjustments (polar/nonpolar) – disulfide (strong), van der waals forces
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Unformatted text preview: Quaternary structure: more than 1 polypeptide chain Sickle cell read book explanation DNA permanent blueprint for specifying proteins Makes up our genes, seen as chromosomes in the nucleus mRNA messenger (temporary blueprint of information for specifying proteins) tRNA transfer RNA rRNA ribosomal RNA DNA RNA proteins C2 is missing OH in DNA C3...
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