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mohammad tabish ahmed - eTheses Repository - University of ...

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Chapter 4<br />

(a)<br />

Dilutions<br />

10 -1 10 -2 10 -3 10 -4 10 -5 10 -6 10 -7<br />

1<br />

2<br />

3<br />

4<br />

(b)<br />

1 2 3 4<br />

95 kDa<br />

72 kDa<br />

55 kDa<br />

Fig 4.8: Complementation and expression <strong>of</strong> MQO.<br />

(a) Lack <strong>of</strong> complementation <strong>of</strong> MQO in MGM100 at 30°C in the presence <strong>of</strong> 0.2%<br />

glucose and 0.1 mM IPTG. 1- MGM100 pTrc-GroES-MQO, 2- MGM100 pTrc-<br />

GroES-GroEL, 3- MGM100 pTrc-GroES-Cpn60.2, 4- MGM100 pTrc99a.<br />

(b) SDS-PAGE gel showing minimal over expression <strong>of</strong> MQO. Samples were taken from<br />

cultures after 4 hours incubation with 0.1 mM IPTG and 0.2% arabinose. Lane 1-<br />

Prestained protein marker (Fermentas), Lane 2- MGM100 pTrc-GroES-MQO; Lane<br />

3: MGM100 pTrc99a, Lane 4: MGM100 pTrc-GroES-GroEL.<br />

167

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