Ontology highlight
ABSTRACT:
SUBMITTER: LaMattina JW
PROVIDER: S-EPMC5087033 | biostudies-literature | 2016 Oct
REPOSITORIES: biostudies-literature
LaMattina Joseph W JW Nix David B DB Lanzilotta William Nicholas WN
Proceedings of the National Academy of Sciences of the United States of America 20161010 43
All of the heme-degrading enzymes that have been characterized to date require molecular oxygen as a cosubstrate. Escherichia coli O157:H7 has been shown to express heme uptake and transport proteins, as well as use heme as an iron source. This enteric pathogen colonizes the anaerobic space of the lower intestine in mammals, yet no mechanism for anaerobic heme degradation has been reported. Herein we provide evidence for an oxygen-independent heme-degradation pathway. Specifically, we demonstrat ...[more]