PMID- 36697941 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230202 IS - 2399-3669 (Electronic) IS - 2399-3669 (Linking) VI - 5 IP - 1 DP - 2022 Nov 9 TI - Elucidating N-acyl amino acids as a model protoamphiphilic system. PG - 147 LID - 10.1038/s42004-022-00762-9 [doi] LID - 147 AB - Protoamphiphiles are prebiotically-plausible moieties that would have constituted protocell membranes on early Earth. Although prebiotic soup would have contained a diverse set of amphiphiles capable of generating protocell membranes, earlier studies were mainly limited to fatty acid-based systems. Herein, we characterize N-acyl amino acids (NAAs) as a model protoamphiphilic system. To the best of our knowledge, we report a new abiotic route in this study for their synthesis under wet-dry cycles from amino acids and monoglycerides via an ester-amide exchange process. We also demonstrate how N-oleoyl glycine (NOG, a representative NAA) results in vesicle formation over a broad pH range when blended with a monoglyceride or a fatty acid. Notably, NOG also acts as a substrate for peptide synthesis under wet-dry cycles, generating different lipopeptides. Overall, our study establishes NAAs as a promising protoamphiphilic system, and highlights their significance in generating robust and functional protocell membranes on primitive Earth. CI - (c) 2022. The Author(s). FAU - Joshi, Manesh Prakash AU - Joshi MP AUID- ORCID: 0000-0003-2718-4033 AD - Department of Biology, Indian Institute of Science Education and Research Pune, Pune, 411008, India. manesh.joshi@students.iiserpune.ac.in. FAU - Uday, Ashwin AU - Uday A AD - Department of Biology, Indian Institute of Science Education and Research Pune, Pune, 411008, India. FAU - Rajamani, Sudha AU - Rajamani S AUID- ORCID: 0000-0002-6030-495X AD - Department of Biology, Indian Institute of Science Education and Research Pune, Pune, 411008, India. srajamani@iiserpune.ac.in. LA - eng GR - CRG/2021/001851/DST | Science and Engineering Research Board (SERB)/ PT - Journal Article DEP - 20221109 PL - England TA - Commun Chem JT - Communications chemistry JID - 101725670 PMC - PMC9814278 COIS- The authors declare no competing interests. EDAT- 2023/01/26 06:00 MHDA- 2023/01/26 06:01 PMCR- 2022/11/09 CRDT- 2023/01/25 23:48 PHST- 2022/07/13 00:00 [received] PHST- 2022/10/19 00:00 [accepted] PHST- 2023/01/25 23:48 [entrez] PHST- 2023/01/26 06:00 [pubmed] PHST- 2023/01/26 06:01 [medline] PHST- 2022/11/09 00:00 [pmc-release] AID - 10.1038/s42004-022-00762-9 [pii] AID - 762 [pii] AID - 10.1038/s42004-022-00762-9 [doi] PST - epublish SO - Commun Chem. 2022 Nov 9;5(1):147. doi: 10.1038/s42004-022-00762-9.