1pdk: Difference between revisions

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[[Image:1pdk.jpg|left|200px]]
{{Seed}}
[[Image:1pdk.png|left|200px]]


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{{STRUCTURE_1pdk|  PDB=1pdk  |  SCENE=  }}  
{{STRUCTURE_1pdk|  PDB=1pdk  |  SCENE=  }}  


'''PAPD-PAPK CHAPERONE-PILUS SUBUNIT COMPLEX FROM E.COLI P PILUS'''
===PAPD-PAPK CHAPERONE-PILUS SUBUNIT COMPLEX FROM E.COLI P PILUS===




==Overview==
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Many Gram-negative pathogens assemble architecturally and functionally diverse adhesive pili on their surfaces by the chaperone-usher pathway. Immunoglobulin-like periplasmic chaperones escort pilus subunits to the usher, a large protein complex that facilitates the translocation and assembly of subunits across the outer membrane. The crystal structure of the PapD-PapK chaperone-subunit complex, determined at 2.4 angstrom resolution, reveals that the chaperone functions by donating its G(1) beta strand to complete the immunoglobulin-like fold of the subunit via a mechanism termed donor strand complementation. The structure of the PapD-PapK complex also suggests that during pilus biogenesis, every subunit completes the immunoglobulin-like fold of its neighboring subunit via a mechanism termed donor strand exchange.
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{{ABSTRACT_PUBMED_10446050}}


==About this Structure==
==About this Structure==
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[[Category: Chaperone]]
[[Category: Chaperone]]
[[Category: Pilus]]
[[Category: Pilus]]
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