Gesto BR, Arredondo PR

Idioma: Español
Referencias bibliográficas: 18
Paginas: 66-71
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RESUMEN

Durante los últimos años se han identificado genes de hemoglobina (hb) en organismos que pertenecen a los tres dominios de la vida. Estos genes se clasifican en las familias M, S y T. La familia M incluye a las flavohemoglobinas (fHbs) y a las Hbs de un solo dominio (SDgbs), la familia S incluye a los sensores acoplados a globinas (GCSs), a las protoglobinas (Pgbs) y a las globinas sensoras de un solo dominio (SSDgbs), y la familia T incluye a las Hbs truncadas (Hbts). En el dominio Eubacteria se han detectado todos los tipos de Hbs que se conocen (fHbs, SDgbs, GCSs, SSDgbs, Pgbs y Hbts), sin embargo, en el dominio Archaea solamente se han detectado GCSs, Pgbs, SSDgbs y Hbts. En esta revisión se describen aspectos generales sobre los avances recientes en el estudio de las Hbs bacterianas desde una perspectiva evolutiva, estructural y funcional.

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