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E3 ligase TRIM72 negatively regulates myogenesis by IRS-1 ...

E3 ligase TRIM72 negatively regulates myogenesis by IRS-1 ...

E3 ligase TRIM72 negatively regulates myogenesis by IRS-1 ...

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RING domain of <strong>TRIM72</strong> is required for <strong>IRS</strong>-1 degradation.<br />

- - - -<br />

+ + + +<br />

-<br />

MG132<br />

Flag-h<strong>IRS</strong>-1<br />

HA-h<strong>TRIM72</strong><br />

IB : Flag<br />

IB : HA<br />

140<br />

- MG132<br />

- - + +<br />

- + - +<br />

+ MG132<br />

- - + +<br />

- + - +<br />

Flag-h<strong>IRS</strong>-1<br />

HA-h<strong>TRIM72</strong><br />

IB: Flag<br />

IB: HA<br />

<strong>IRS</strong>-1 Expression<br />

Level (%)<br />

120<br />

100<br />

80<br />

60<br />

40<br />

20<br />

0<br />

+ + + +<br />

-<br />

+<br />

-<br />

+<br />

- - + +<br />

Flag-h<strong>IRS</strong>-1<br />

HA-h<strong>TRIM72</strong><br />

MG132<br />

HEK 293 cells

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