BIosc 150 1nd Edition Lecture 4 Outline of Last Lecture I Nucleic Acids Outline of Current Lecture II Protein A Structure is equivalent to function III Hemoglobin and its job Current Lecture Protein structure determines the function Proteins build from prime 1 through prime 3 structures As researchers we study proteins to figure out human diseases such as sickle cell caused by hemoglobin In order to determine a protein s mass one would need to unfold the protein down to its polypeptide chain denaturants unfold proteins Detergent hides hydrophobic groups so water doesn t push it back together It is known that the structure of a protein is essential because if the protein is unfolded it cannot perform the same function Protein structure and function is diverse Enzymes contain active site clefts this is where substrates are bonded and its job is done Enzymes change shapes when binding substrates Hemoglobin a protein that transports oxygen Hemoglobin is composed of 4 polypeptides coded for by 2 DNA genes These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute
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