Structure and activity of Streptococcus pyogenes SipA: a signal peptidase homologue essential for pilus polymerisation

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     ​M​​S​​Y​​Y​​H​​H​​H​​H​​H​​H​     ​D​​Y​​D​​I​​P​​T​​T​​E​​N​​L​     ​Y​​F​​Q​​G​​A​​Q​​Y​​V​​F​​G​41   ​V​​M​​I​​I​​N​​T​​N​​D​​M​​S​51   ​P​​A​​L​​S​​A​​G​​D​​G​​V​​L​61   ​Y​​Y​​R​​L​​T​​D​​R​​Y​​H​​I​71   ​N​​D​​V​​V​​V​​Y​​E​​V​​D​​N​81   ​T​​L​​K​​V​​G​​R​​I​​A​​A​​Q​91   ​A​​G​​D​​E​​V​​S​​F​​T​​Q​​E​101  ​G​​G​​L​​L​​I​​N​​G​​H​​P​​P​111  ​E​​K​​E​​V​​P​​Y​​L​​T​​Y​​P​121  ​H​​S​​S​​G​​P​​N​​F​​P​​Y​​K​131  ​V​​P​​T​​G​​T​​Y​​F​​I​​L​​N​141  ​D​​Y​​R​​E​​E​​R​​L​​D​​S​​R​151  ​Y​​Y​​G​​A​​L​​P​​I​​N​​Q​​I​161  ​K​​G​​K​​I​​S​​T​​L​​L​​R​​V​171  ​R​​G​​I​
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