Structure of the biliverdin reductase Rv2074 from Mycobacterium tuberculosis in complex with F420

Experimental Data Snapshot

  • Resolution: 1.65 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.3 of the entry. See complete history


Rv2074 is a novel F420 H2 -dependent biliverdin reductase in Mycobacterium tuberculosis.

Ahmed, F.H.Mohamed, A.E.Carr, P.D.Lee, B.M.Condic-Jurkic, K.O'Mara, M.L.Jackson, C.J.

(2016) Protein Sci 25: 1692-1709

  • DOI: https://doi.org/10.1002/pro.2975
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Bilirubin is a potent antioxidant that is produced from the reduction of the heme degradation product biliverdin. In mammalian cells and Cyanobacteria, NADH/NADPH-dependent biliverdin reductases (BVRs) of the Rossmann-fold have been shown to catalyze this reaction. Here, we describe the characterization of Rv2074 from Mycobacterium tuberculosis, which belongs to a structurally and mechanistically distinct family of F420 H2 -dependent BVRs (F-BVRs) that are exclusively found in Actinobacteria. We have solved the crystal structure of Rv2074 bound to its cofactor, F420 , and used this alongside molecular dynamics simulations, site-directed mutagenesis and NMR spectroscopy to elucidate its catalytic mechanism. The production of bilirubin by Rv2074 could exploit the anti-oxidative properties of bilirubin and contribute to the range of immuno-evasive mechanisms that have evolved in M. tuberculosis to allow persistent infection.

  • Organizational Affiliation

    Research School of Chemistry, The Australian National University, Canberra, ACT, 2601, Australia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Biliverdin reductase Rv2074
A, B, C, D
135Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: Rv2074MTCY49.13
EC: 1.3.98
Find proteins for P9WLL7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WLL7 
Go to UniProtKB:  P9WLL7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WLL7
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.65 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.756α = 90
b = 88.62β = 90
c = 98.625γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-07-13
    Type: Initial release
  • Version 1.1: 2016-08-31
    Changes: Database references
  • Version 1.2: 2017-09-27
    Changes: Author supporting evidence, Data collection, Database references, Derived calculations
  • Version 1.3: 2023-09-27
    Changes: Data collection, Database references, Refinement description