The large subunit (HycE, 569 amino acids) of Escherichia coli hydrogenase 3 produces hydrogen from formate via its Ni-Fe-binding site. In this paper, we engineered HycE for enhanced hydrogen production by an error-prone polymerase chain reaction (epPCR) using a host that lacked hydrogenase activity via the hyaB hybC hycE mutations. Seven enhanced HycE variants were obtained with a novel chemochromic membrane screen that directly detected hydrogen from individual colonies. The best epPCR variant contained eight mutations (S2T, Y50F, I171T, A291V, T366S, V433L, M444I, and L523Q) and had 17-fold higher hydrogen-producing activity than wild-type HycE. In addition, this variant had eightfold higher hydrogen yield from formate compared to wild-type HycE. Deoxyribonucleic acid shuffling using the three most-active HycE variants created a variant that has 23-fold higher hydrogen production and ninefold higher yield on formate due to a 74-amino acid carboxy-terminal truncation. Saturation mutagenesis at T366 of HycE also led to increased hydrogen production via a truncation at this position; hence, 204 amino acids at the carboxy terminus may be deleted to increase hydrogen production by 30-fold. This is the first random protein engineering of a hydrogenase.

Moi il me suffit de savoir que presqu’aucun scientifique n’étudie ou n’utilise la théorie de l’évolution dans ces travaux (sauf pour faire du « plug-in ») pour conclure que l’évolution est une CROYANCE et non une théorie comprise et supportée par la communauté scientifique.

C'est tout de même une réponse "in your face" à cette perle de Julien:

La base de la foi évolutionniste est la négation/ignorance des faits scientifiques.
Le créationnisme, lui, est un constat biologique.

If somebody believes that the world is only six thousand years old or of the order of a few thousand years old, when the true age of the earth is of the order or a few billion years old, that means they are out by a factor of... A million. Which is not a trivial error.