Hmdb loader
Identification
HMDB Protein ID HMDBP12712
Secondary Accession Numbers None
Name Digoxin reductase
Synonyms
  1. Cardenolide reductase
  2. Cardiac glycoside reductase operon protein 2
Gene Name CGR2
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Involved in the inactivation of the cardiac medication and plant natural product digoxin, thus decreasing drug efficacy and toxicity. Catalyzes the reduction of the alpha,beta-unsaturated butyrolactone ring of digoxin to the inactive metabolite dihydrodigoxin. Likely uses the cytochrome Cgr1 as the physiological electron donor, encoded by the adjacent gene in the locus. Only reduces digoxin and other cardenolide toxins, such as digitoxin, digoxigenin, ouabain and ouabagenin. Therefore is a specialized enzyme present in some gut bacteria E.lenta that protects their human host against ingested plant toxins.
Pathways Not Available
Reactions Not Available
GO Classification
Biological Process
response to toxin
Cellular Component
plasma membrane
Molecular Function
metal ion binding
4 iron, 4 sulfur cluster binding
oxidoreductase activity
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues 560
Molecular Weight 59160.825
Theoretical pI 4.561
Pfam Domain Function
Signals
  • 1-48;
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID C8WLM1
UniProtKB/Swiss-Prot Entry Name CGR2_EGGLE
PDB IDs Not Available
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Saunders E, Pukall R, Abt B, Lapidus A, Glavina Del Rio T, Copeland A, Tice H, Cheng JF, Lucas S, Chen F, Nolan M, Bruce D, Goodwin L, Pitluck S, Ivanova N, Mavromatis K, Ovchinnikova G, Pati A, Chen A, Palaniappan K, Land M, Hauser L, Chang YJ, Jeffries CD, Chain P, Meincke L, Sims D, Brettin T, Detter JC, Goker M, Bristow J, Eisen JA, Markowitz V, Hugenholtz P, Kyrpides NC, Klenk HP, Han C: Complete genome sequence of Eggerthella lenta type strain (IPP VPI 0255). Stand Genomic Sci. 2009 Sep 28;1(2):174-82. doi: 10.4056/sigs.33592. [PubMed:21304654 ]
  2. Haiser HJ, Gootenberg DB, Chatman K, Sirasani G, Balskus EP, Turnbaugh PJ: Predicting and manipulating cardiac drug inactivation by the human gut bacterium Eggerthella lenta. Science. 2013 Jul 19;341(6143):295-8. doi: 10.1126/science.1235872. [PubMed:23869020 ]
  3. Koppel N, Bisanz JE, Pandelia ME, Turnbaugh PJ, Balskus EP: Discovery and characterization of a prevalent human gut bacterial enzyme sufficient for the inactivation of a family of plant toxins. Elife. 2018 May 15;7. pii: 33953. doi: 10.7554/eLife.33953. [PubMed:29761785 ]