Meteoritic C α ‐Methylated α‐Amino Acids and the Homochirality of Life: Searching for a Link | Zendy

Crisma Marco | Zendy; Moretto Alessandro | Zendy; Formaggio Fernando | Zendy; Kaptein Bernard | Zendy; Broxterman Quirinus B. | Zendy; Toniolo Claudio | Zendy

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Meteoritic C α ‐Methylated α‐Amino Acids and the Homochirality of Life: Searching for a Link

Author(s) -

Crisma Marco,

Moretto Alessandro,

Formaggio Fernando,

Kaptein Bernard,

Broxterman Quirinus B.,

Toniolo Claudio

Publication year - 2004

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200460908

Subject(s) - homochirality , amino acid , enantiomer , chemistry , meteorite , abiogenesis , enantiomeric excess , stereochemistry , astrobiology , enantioselective synthesis , organic chemistry , biochemistry , catalysis , biology

Catch a falling star : Peptides from chiral, C α ‐methylated α‐amino acids (see scheme) found in L enantiomeric excess in meteorites show diastereoselectivity when reacting with racemic proteinogenic amino acids. Accordingly, the prebiotic soup of proteinogenic amino acids may have evolved into a chirally unbalanced system, eventually seeding the homochirality of life.

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