| Literature DB >> 5783710 |
I L Karle, J W Daly, B Witkop.
Abstract
Mass spectrometry showed the new amino acid from diatomn cell walls to be a dihydroxyproline. X-ray analysis of the unmarked free amino acid by the use of the symbolic addition procedure revealed the comnplete three-dimtensional structure as 2, 3-cis-3, 4-trans-3, 4-dihydroxy-L-proline with carbon number 3 being 0.06 angstrom above the plane of the pyrrolidine ring.Entities:
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Year: 1969 PMID： 5783710 DOI： 10.1126/science.164.3886.1401
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728