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2.5- Diaminopentanoic acid

Figure 5.19 Formation of amino acids on ice surfaces irradiated in the laboratory (Nature Nature 416, 403-406 (28 March 2002) doi 10.1038/416403a-permission granted). Data were obtained from analysis of the room temperature residue of photoprocessed interstellar medium ice analogue taken after 6 M HCl hydrolysis and derivatization (ECEE derivatives, Varian-Chrompack Chirasil-L-Val capillary column 12 m x 0.25 mm inner diameter, layer thickness 0.12 pirn splitless injection, 1.5 ml min-1 constant flow of He carrier gas oven temperature programmed for 3 min at 70°C, 5°C min-1, and 17.5 min at 180°C detection of total ion current with GC-MSD system Agilent 6890/5973). The inset shows the determination of alanine enantiomers in the above sample (Chirasil-L-Val 25 m, single ion monitoring for Ala-ECEE base peak at 116 a.m.u.). DAP, diaminopentanoic acid DAH, diaminohexanoic acid a.m.u., atomic mass units. Figure 5.19 Formation of amino acids on ice surfaces irradiated in the laboratory (Nature Nature 416, 403-406 (28 March 2002) doi 10.1038/416403a-permission granted). Data were obtained from analysis of the room temperature residue of photoprocessed interstellar medium ice analogue taken after 6 M HCl hydrolysis and derivatization (ECEE derivatives, Varian-Chrompack Chirasil-L-Val capillary column 12 m x 0.25 mm inner diameter, layer thickness 0.12 pirn splitless injection, 1.5 ml min-1 constant flow of He carrier gas oven temperature programmed for 3 min at 70°C, 5°C min-1, and 17.5 min at 180°C detection of total ion current with GC-MSD system Agilent 6890/5973). The inset shows the determination of alanine enantiomers in the above sample (Chirasil-L-Val 25 m, single ion monitoring for Ala-ECEE base peak at 116 a.m.u.). DAP, diaminopentanoic acid DAH, diaminohexanoic acid a.m.u., atomic mass units.
D-ornithine 4,5-aminomutase catalyzes the reversible interconversion of d-ornithine 11 to (2R,4S)-diaminopentanoic acid 46 [78] (Scheme 1.6.17). [Pg.102]

Scheme 1.6.17. Biosynthesis of (2R,4S)-diaminopentanoic acid in Clostridium sticklandii. Scheme 1.6.17. Biosynthesis of (2R,4S)-diaminopentanoic acid in Clostridium sticklandii.
H2N(CH2)3CH(NH2)C02H (ornithine) Rearrangement of 14.8.2.2.(table) CH3CH(NH2)CH2CH(NH2)C02H (2,4-diaminopentanoic acid)... [Pg.792]

Ornithine 4,5-aminomutase AdoCbi-dependent 2,4-Diaminopentanoic acid Stickiand fermentation 389... [Pg.312]

DIAMINOPENTANO (Spanish) (462-94-2) Combustible liquid (flash point 144°F/ 62°C). Reacts violently with strong oxidizers, acids. A strong organic base. Incompatible with organic anhydrides, alkylene oxides, epichlorohydrin, aldehydes, alcohols, glycols, phenols, cresols, caprolactam solution. Attacks copper, nickel, steel. Attacks some plastics, rubber, and coatings. [Pg.386]

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2,5-Diaminopentanoic Acid *Ornithine

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