The ineluctable requirement for the trans-iron elements molybdenum and/or tungsten in the origin of life | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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  The ineluctable requirement for the trans-iron elements molybdenum and/or tungsten in the origin of life

Type de publication:

Journal Article

Source:

Scientific Reports, Volume 2 (2012)

ISBN:

2045-2322

Numéro d'accès:

WOS:000300582000002

URL:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3278043/

Mots-clés:

UMR 7154 ; Géobiosphère actuelle et primitive

Résumé:

An evolutionary tree of key enzymes from the Complex-Iron-Sulfur-Molybdoenzyme (CISM) superfamily distinguishes "ancient" members, i.e. enzymes present already in the last universal common ancestor (LUCA) of prokaryotes, from more recently evolved subfamilies. The majority of the presented subfamilies and, as a consequence, the Molybdo-enzyme superfamily as a whole, appear to have existed in LUCA. The results are discussed with respect to the nature of bioenergetic substrates available to early life and to problems arising from the low solubility of molybdenum under conditions of the primordial Earth.

Notes:

Times Cited: 0