000 01753nam a2200217Ia 4500
003 MX-MdCICY
005 20250625160135.0
040 _cCICY
090 _aB-15580
245 1 0 _aCommon origins of RNA, protein and lipid precursors in a cyanosul?dic protometabolism
490 0 _vNature Chemistry, 7, p.301-307, 2015
520 3 _aA minimal cell can be thought of as comprising informational, compartment-forming and metabolic subsystems. To imagine the abiotic assembly of such an overall system, however, places great demands on hypothetical prebiotic chemistry. The perceived differences and incompatibilities between these subsystems have led to the widely held assumption that one or other subsystem must have preceded the others. Here we experimentally investigate the validity of this assumption by examining the assembly of various biomolecular building blocks from prebiotically plausible intermediates and one-carbon feedstock molecules. We show that precursors of ribonucleotides, amino acids and lipids can all be derived by the reductive homologation of hydrogen cyanide and some of its derivatives, and thus that all the cellular subsystems could have arisen simultaneously through common chemistry. The key reaction steps are driven by ultraviolet light, use hydrogen sul?de as the reductant and can be accelerated by Cu(I)-Cu(II)photoredox cycling.
700 1 2 _aPatel, B.H.
700 1 2 _aPercivalle, C.
700 1 2 _aRitson, D.J.
700 1 2 _aDuffy, C.D.
700 1 2 _aSutherland, J.D.
856 4 0 _uhttps://drive.google.com/file/d/1ZW34Whye4MFdSddjGbeExFaQUdSGX7yb/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 _2Loc
_cREF1
008 250602s9999 xx |||||s2 |||| ||und|d
999 _c49760
_d49760