X-ray crystal structure of a KirBac potassium channel highlights a mechanism of channel opening at the bundle-crossing gate.

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Sequence of
     ​M​​T​​G​​G​​M​​K​​P​​P​​A​​R​     ​K​​P​​R​​I​​L​​N​​S​​D​​G​​S​21   ​S​​N​​I​​T​​R​​L​​G​​L​​E​​K​     ​R​​G​​W​​L​​D​​D​​H​​Y​​H​​D​41   ​L​​L​​T​​V​​S​​W​​P​​V​​F​​I​51   ​T​​L​​I​​T​​G​​L​​Y​​L​​V​​T​61   ​N​​A​​L​​F​​A​​L​​A​​Y​​L​​A​71   ​C​​G​​D​​V​​I​​E​​N​​A​​R​​P​81   ​G​​S​​F​​T​​D​​A​​F​​F​​F​​S​91   ​V​​Q​​T​​M​​A​​T​​I​​G​​Y​​G​101  ​K​​L​​I​​P​​I​​G​​P​​L​​A​​N​111  ​T​​L​​V​​T​​L​​E​​A​​L​​C​​G​121  ​M​​L​​G​​L​​A​​V​​A​​A​​R​​L​131  ​I​​Y​​A​​R​​F​​T​​R​​P​​T​​A​141  ​G​​V​​L​​F​​S​​S​​R​​M​​V​​I​151  ​S​​D​​F​​E​​G​​K​​P​​T​​L​​M​161  ​M​​R​​L​​A​​N​​L​​R​​I​​E​​Q​171  ​I​​I​​E​​A​​D​​V​​H​​L​​V​​L​181  ​V​​R​​S​​E​​I​​S​​Q​​E​​G​​M​191  ​V​​F​​R​​R​​F​​H​​D​​L​​T​​L​201  ​T​​R​​S​​R​​S​​P​​I​​F​​S​​L​211  ​S​​W​​T​​V​​M​​H​​P​​I​​D​​H​221  ​H​​S​​P​​I​​Y​​G​​E​​T​​D​​E​231  ​T​​L​​R​​N​​S​​H​​S​​E​​F​​L​241  ​V​​L​​F​​T​​G​​H​​H​​E​​A​​F​251  ​A​​Q​​N​​V​​H​​A​​R​​H​​A​​Y​261  ​S​​C​​D​​E​​I​​I​​W​​G​​G​​H​271  ​F​​V​​D​​V​​F​​T​​T​​L​​P​​D​281  ​G​​R​​R​​A​​L​​D​​L​​G​​K​​F​291  ​H​​E​​I​​A​​Q​​H​​H​​H​​H​​H​     ​H​
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