Mechanistic insight into the enzymatic reduction of truncated hemoglobin N of Mycobacterium tuberculosis: role of the CD loop and pre-A motif in electron cycling

S Singh, N Thakur, A Oliveira, AA Petruk… - Journal of Biological …, 2014 - ASBMB
Many pathogenic microorganisms have evolved hemoglobin-mediated nitric oxide (NO)
detoxification mechanisms, where a globin domain in conjunction with a partner reductase …

Role of Pre-A motif in nitric oxide scavenging by truncated hemoglobin, HbN, of Mycobacterium tuberculosis

A Lama, S Pawaria, A Bidon-Chanal, A Anand… - Journal of biological …, 2009 - ASBMB
Mycobacterium tuberculosis truncated hemoglobin, HbN, is endowed with a potent nitric-
oxide dioxygenase activity and has been found to relieve nitrosative stress and enhance in …

Ligand binding to truncated hemoglobin N from Mycobacterium tuberculosis is strongly modulated by the interplay between the distal heme pocket residues and …

YH Ouellet, R Daigle, P Lagüe, D Dantsker… - Journal of biological …, 2008 - ASBMB
The survival of Mycobacterium tuberculosis requires detoxification of host· NO. Oxygenated
Mycobacterium tuberculosis truncated hemoglobin N catalyzes the rapid oxidation of nitric …

Direct Monitoring of the Reaction between Photochemically Generated Nitric Oxide and Mycobacterium tuberculosis Truncated Hemoglobin N Wild Type and Variant …

KJ Koebke, MT Waletzko, AA Pacheco - Biochemistry, 2016 - ACS Publications
The previously reported nitric oxide precursor [Mn (PaPy2Q) NO] ClO4 (1), where
(PaPy2QH) is N, N-bis (2-pyridylmethyl)-amine-N-ethyl-2-quinoline-2-carboxamide, was …

Structure and Dynamics of Mycobacterium tuberculosis Truncated Hemoglobin N: Insights from NMR Spectroscopy and Molecular Dynamics Simulations

PY Savard, R Daigle, S Morin, A Sebilo, F Meindre… - Biochemistry, 2011 - ACS Publications
The potent nitric oxide dioxygenase (NOD) activity (trHbN–Fe2+–O2+• NO→ trHbN–Fe3+–
OH2+ NO3–) of Mycobacterium tuberculosis truncated hemoglobin N (trHbN) protects …

Ligand‐induced dynamical regulation of NO conversion in Mycobacterium tuberculosis truncated hemoglobin‐N

A Bidon‐Chanal, MA Martí, A Crespo… - Proteins: Structure …, 2006 - Wiley Online Library
Mycobacterium tuberculosis, the causative agent of human tuberculosis, is forced into
latency by nitric oxide produced by macrophages during infection. In response to nitrosative …

Role of PheE15 Gate in Ligand Entry and Nitric Oxide Detoxification Function of Mycobacterium tuberculosis Truncated Hemoglobin N

A Oliveira, S Singh, A Bidon-Chanal, F Forti, MA Marti… - PLoS …, 2012 - journals.plos.org
The truncated hemoglobin N, HbN, of Mycobacterium tuberculosis is endowed with a potent
nitric oxide dioxygenase (NOD) activity that allows it to relieve nitrosative stress and …

Nitric oxide scavenging and detoxification by the Mycobacterium tuberculosis haemoglobin, HbN in Escherichia coli

R Pathania, NK Navani, AM Gardner… - Molecular …, 2002 - Wiley Online Library
Nitric oxide (NO), generated in large amounts within the macrophages, controls and restricts
the growth of internalized human pathogen, Mycobacterium tuberculosis H37Rv. The …

Nitric Oxide Reductase Activity in Heme–Nonheme Binuclear Engineered Myoglobins through a One-Electron Reduction Cycle

S Sabuncu, JH Reed, Y Lu… - Journal of the American …, 2018 - ACS Publications
FeBMbs are structural and functional models of native bacterial nitric oxide reductases
(NORs) generated through engineering of myoglobin. These biosynthetic models replicate …

Mechanism of Product Release in NO Detoxification from Mycobacterium tuberculosis Truncated Hemoglobin N

MA Martí, A Bidon-Chanal, A Crespo… - Journal of the …, 2008 - ACS Publications
The capability of Mycobacterium tuberculosis to rest in latency in the infected organism
appears to be related to the disposal of detoxification mechanisms, which converts the nitric …