File:La proteína mioglobina.png
La_proteína_mioglobina.png (510 × 480 pixels, file size: 178 KB, MIME type: image/png)
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Summary
[edit]DescriptionLa proteína mioglobina.png |
Español: La proteína mioglobina, descrita en primer lugar en 1973 por H.C. watson y john kendrew.
PDB-ID: 1MNB En esta representación de la estructura observamos un claro predominio de las estructuras secundarias α-hélice, concretamente 8 segmentos (representadas en cian) unidas mediante giros(magenta).El grupo prostético hemo o tetrapirrol cíclico(magenta) se asocia de manera no covalente a la hendidura hidrofóbica que se forma entre la hélices E y F cunado la proteína adopta su conformación nativa. En el centro de este anillo existe un hierro ferroso (Fe+2, en color ocre) que se coordina con 4 átomos de nitrógeno de la poriforina, un N de la cadena lateral de la histidina proximal F8( HIS 93) y como 6º ligando un grupo hidroxilo (OH, oxígeno en rojo), cerca de éste último ligando observamos la histidina distal (HIS 93). |
Date | |
Source | Own work |
Author | BiancaDescals |
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