Unfolding forces of titin and fibronectin domains directly measured by AFM.

Abstract:

:AFM-based Single Molecule Force Spectroscopy provides a new tool for probing the mechanical properties of single molecules. In this chapter we show that the unfolding forces of single protein domains can be directly measured. Unfolding forces give new insight into protein stability that cannot be deduced from thermodynamic measurements. A comparison between the unfolding forces measured in Ig domains of the muscle protein titin and those measured in fibronectin Type III domains reveals an extraordinarily high stability of titin domains.

journal_name

Adv Exp Med Biol

authors

Rief M,Gautel M,Gaub HE

doi

10.1007/978-1-4615-4267-4_8

subject

Has Abstract

pub_date

2000-01-01 00:00:00

pages

129-36; discussion 137-41

eissn

0065-2598

issn

2214-8019

journal_volume

481

pub_type

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