Structural Differences Between Tubz And The Rest Of The Tubulin Family

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Sofia Paz BIO 206 Writing Assignment #3

Detailed Focus Question: What role do the structural changes in GTPase domains between TubZ and the rest of the Tubulin family play in the function of TubZ in plasmids and bacteriophages?

Introduction - Before examining the structural differences between TubZ and the rest of the Tubulin family, it will be necessary to give background on both. Specifically, what Tubulin is and the common characteristics of the Tubulin family, Tubulin’s role in the cell, what TubZ is, what it’s role is, and what similarities it shares with other members of the Tubulin family. A general layout of the paper will also be given at the end of this introduction. General layout would briefly describe the order of the sections to follow.
Tubulin
“What is it?” - Tubulin is a family of proteins which belong in to a bigger family known as globular proteins. “Globular protein” refers to a particular class of protein characterized by its spherical-like shape and water solubility. The Tubulin family contains proteins which make up microtubules.
“What is its function?” - Since Tubulin makes up microtubules they play a role in the structure of eukaryotes and form the cytoskeleton. They also play a role in chromosomal separation in mitosis/meiosis.
FtsZ is the prokaryotic homolog of Tubulin (eukaryotic protein). One reason it will be useful to mention FtsZ is because, while the

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