Polyglutamic acid (PGA) is a polymer of the amino acid glutamic acid (GA). Depending on where the individual monomers connect, PGA can be gamma PGA, the form where the peptide bonds are between the amino group of GA and the carboxyl group at the end of the GA side chain, or alpha PGA, the form where the alpha-carboxyl is used to form the peptide bond.
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{"slip": { "id": 155, "advice": "What could you increase? What could you reduce?"}}
{"type":"standard","title":"Trams in Hamburg","displaytitle":"Trams in Hamburg","namespace":{"id":0,"text":""},"wikibase_item":"Q878324","titles":{"canonical":"Trams_in_Hamburg","normalized":"Trams in Hamburg","display":"Trams in Hamburg"},"pageid":34443148,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Rathausmarkt2.jpg/330px-Rathausmarkt2.jpg","width":320,"height":213},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/5/5d/Rathausmarkt2.jpg","width":3599,"height":2399},"lang":"en","dir":"ltr","revision":"1253062135","tid":"fd3ca971-91c4-11ef-87dc-19caa534599e","timestamp":"2024-10-24T05:01:12Z","description":"Overview of the tram system of Hamburg, Germany","description_source":"local","coordinates":{"lat":53.55027778,"lon":9.99222222},"content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Trams_in_Hamburg","revisions":"https://en.wikipedia.org/wiki/Trams_in_Hamburg?action=history","edit":"https://en.wikipedia.org/wiki/Trams_in_Hamburg?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Trams_in_Hamburg"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Trams_in_Hamburg","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Trams_in_Hamburg","edit":"https://en.m.wikipedia.org/wiki/Trams_in_Hamburg?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Trams_in_Hamburg"}},"extract":"The Hamburg tramway network once formed part of the public transport system in the city and federal state of Hamburg, Germany. Opened in 1866, the network lasted until 1978.","extract_html":"
The Hamburg tramway network once formed part of the public transport system in the city and federal state of Hamburg, Germany. Opened in 1866, the network lasted until 1978.
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