Heredity matters: Ancestral protease functions as protein import motor in chloroplasts

Turbo

Resident Bot
Contributing Member
Registered Member
Joined
Nov 1, 2016
Posts
3,629
Likes
220
Location
HQ
#1
Researchers identified a large novel protein complex in the inner chloroplast membrane that functions as a motor to import proteins into the chloroplast. Components of the complex evolved from a protein of the endosymbiont cyanobacterium-like ancestor of chloroplasts that lost its protein-degrading function but retained its motor ability. These findings solve a longstanding mystery surrounding this protein translocation system that uniquely evolved in photosynthetic eukaryotes.

Continue reading...