Escape from bacterial iron piracy through rapid evolution of transferrin.
Escape from bacterial iron piracy through rapid evolution of transferrin.
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DOI:
10.1126/science.1259329
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发表时间:
2014-12-12
期刊:
影响因子:
--
通讯作者:
Elde NC
中科院分区:
文献类型:
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作者:
Barber MF;Elde NC
Iron sequestration provides an innate defense termed nutritional immunity, leading pathogens to scavenge iron from hosts. Although the molecular basis of this battle for iron is established, its potential as a force for evolution at host-pathogen interfaces is unknown. We show that the iron transport protein transferrin is engaged in ancient and ongoing evolutionary conflicts with TbpA, a transferrin surface receptor from bacteria. Single substitutions in transferrin at rapidly evolving sites reverse TbpA binding, providing a mechanism to counteract bacterial iron piracy among great apes. Furthermore, the C2 transferrin polymorphism in humans evades TbpA variants from Haemophilus influenzae, revealing a functional basis for standing genetic variation. These findings identify a central role for nutritional immunity in the persistent evolutionary conflicts between primates and bacterial pathogens.
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影响因子:
3.6
作者:
SCHRYVERS, AB;MORRIS, LJ
通讯作者:
MORRIS, LJ
影响因子:
16.8
作者:
Calmettes, Charles;Alcantara, Joenel;Yu, Rong-Hua;Schryvers, Anthony B.;Moraes, Trevor F.
通讯作者:
Moraes, Trevor F.
影响因子:
6.7
作者:
Kaelber JT;Demogines A;Harbison CE;Allison AB;Goodman LB;Ortega AN;Sawyer SL;Parrish CR
通讯作者:
Parrish CR
影响因子:
64.8
作者:
Elde NC;Child SJ;Geballe AP;Malik HS
通讯作者:
Malik HS
DOI:
10.1038/nrmicro2836
发表时间:
2012-07-16
期刊:
Nature reviews. Microbiology
影响因子:
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作者:
通讯作者:
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