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STION 21 e studying two proteins that you suspect cap the ends of actin filaments. To detemmine if

STION 21 e studying two proteins that you suspect cap the ends of actin filaments. To detemmine if

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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QUESTION 21 You are studying two proteins that you suspect cap the ends of actin filaments. To detemine if they do and to determine which end they cap, you measure filament formation as a function of actin concentration in the absence of either protein, in the presence of protein 1 and in the presence of protein 2 (each individually). You get the results below. Which protein caps the plus end and which caps the minus end? (A) NO ADDED PROTEIN (B) PROTEIN 1 (C) PROTEIN 2 filament monomer filament monomer filament monomer 0.2 0.4 0.6 0.8 0.2 0.4 0.6 0.8 0.2 0.4 0.6 0.8 actin (uM) actin (µM) actin (µM) O Neither protein caps either end of actin. O Both proteins cap the plus end O Protein 1 caps the minus end and protein 2 the plus end. O Protein 2 caps the minus end and protein 1 the plus end
Transcribed Image Text:QUESTION 21 You are studying two proteins that you suspect cap the ends of actin filaments. To detemine if they do and to determine which end they cap, you measure filament formation as a function of actin concentration in the absence of either protein, in the presence of protein 1 and in the presence of protein 2 (each individually). You get the results below. Which protein caps the plus end and which caps the minus end? (A) NO ADDED PROTEIN (B) PROTEIN 1 (C) PROTEIN 2 filament monomer filament monomer filament monomer 0.2 0.4 0.6 0.8 0.2 0.4 0.6 0.8 0.2 0.4 0.6 0.8 actin (uM) actin (µM) actin (µM) O Neither protein caps either end of actin. O Both proteins cap the plus end O Protein 1 caps the minus end and protein 2 the plus end. O Protein 2 caps the minus end and protein 1 the plus end
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