{"title":"Studies on fatty acid esters of flavins. VII. Reaction of riboflavin tetrabutyrate with linoleic acid under ultra violet light irradiation.","authors":"H Oama, K Yagi","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 4","pages":"297-303"},"PeriodicalIF":0.0,"publicationDate":"1970-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16578487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biogenesis of riboflavin in green leaves. VII. Isolation and characterization of spinach riboflavin synthetase.","authors":"H Mitsuda, F Kawai, Y Suzuki, S Yoshimoto","doi":"10.5925/jnsv1954.16.285","DOIUrl":"https://doi.org/10.5925/jnsv1954.16.285","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 4","pages":"285-92"},"PeriodicalIF":0.0,"publicationDate":"1970-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5925/jnsv1954.16.285","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16578486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The biosynthesis of folic acid compounds in plants. V. Reaction mechanism of the dihydropteroate-synthesizing enzyme from pea seedlings.","authors":"O. Okinaka, K. Iwai","doi":"10.5925/JNSV1954.14.160","DOIUrl":"https://doi.org/10.5925/JNSV1954.14.160","url":null,"abstract":"Cell-free extracts of pea seedlings contain the enzyme system which catalyzes the formation of folate compounds from 2-amino-4-hydroxy-6-substituted pteridines and p-aminobenzoic acid or p-aminobenzoylglutamic acid. Active pteridines were 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine and its pyrophosphate ester, i.e., 2-amino-4-hydroxy-6-pyrophosphorylmethyldihydropteridine, and a considerable amount of folate compound was formed enzymatically from the latter compound in the presence of Mg2+ as a cofactor, whereas the less amount was formed from the former in the presence of both ATP and Mg2+. The products were characterized, by a bioautographic technique, as dihydropteroic acid and dihydrofolic acid from p-aminobenzoic acid and p-aminobenzoylglutamic acid, respectively, in the presence of pyrophosphorylmethyldihydropteridine. In the enzymatic reaction, p-aminobenzoic acid was more active as substrate than p-aminobenzoylglutamic acid. When p-aminobenzoic acid and L-glutamic acid were used in place of p-aminobenzoic acid in the enzyme system, dihydropteroic acid and dihydrofolic acid were formed in the presence of the pteridine, ATP and Mg2+. From these results presented, the following pathway for the biosynthesis of folate compounds in plants was proposed:","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"132 1","pages":"210-4"},"PeriodicalIF":0.0,"publicationDate":"1970-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88833667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preparation and properties of crystalline riboflavin-tryptophan complex.","authors":"H Mitsuda, H Tsuge, F Kawai","doi":"10.5925/jnsv1954.16.219","DOIUrl":"https://doi.org/10.5925/jnsv1954.16.219","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 3","pages":"219-24"},"PeriodicalIF":0.0,"publicationDate":"1970-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5925/jnsv1954.16.219","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16587959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biosynthesis of vitamin B6. II. Localization of 14C-carbons in vitamin B6.","authors":"R Suzue, Y Haruna","doi":"10.5925/jnsv1954.16.161","DOIUrl":"https://doi.org/10.5925/jnsv1954.16.161","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 3","pages":"161-3"},"PeriodicalIF":0.0,"publicationDate":"1970-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5925/jnsv1954.16.161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16588366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effect of vitamin E on the preservation of blood.","authors":"I Kurokawa, T Kimura, Y Ueno, I Suzuki, Y Kishi","doi":"10.5925/jnsv1954.16.180","DOIUrl":"https://doi.org/10.5925/jnsv1954.16.180","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 3","pages":"180-9"},"PeriodicalIF":0.0,"publicationDate":"1970-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5925/jnsv1954.16.180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16587957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of 8-azaguanine, chloramphenicol and 3-amino-1,2,4-triazole on riboflavin formation by Eremothecium ashbyii.","authors":"H Mitsuda, Y Suzuki","doi":"10.5925/jnsv1954.16.172","DOIUrl":"https://doi.org/10.5925/jnsv1954.16.172","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 3","pages":"172-9"},"PeriodicalIF":0.0,"publicationDate":"1970-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16587956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vitamin D3 action on D,L-serine-3-14C incorporation into phospholipid fractions with rat liver mitochondria.","authors":"N Hosoya, S Moriuchi, K Ooizumi","doi":"10.5925/jnsv1954.16.190","DOIUrl":"https://doi.org/10.5925/jnsv1954.16.190","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 3","pages":"190-5"},"PeriodicalIF":0.0,"publicationDate":"1970-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15423798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The biosynthesis of folic acid compounds in plants. V. Reaction mechanism of the dihydropteroate-synthesizing enzyme from pea seedlings.","authors":"O Okinaka, K Iwai","doi":"10.5925/jnsv1954.16.210","DOIUrl":"https://doi.org/10.5925/jnsv1954.16.210","url":null,"abstract":"","PeriodicalId":22950,"journal":{"name":"The Journal of vitaminology","volume":"16 3","pages":"210-4"},"PeriodicalIF":0.0,"publicationDate":"1970-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5925/jnsv1954.16.210","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15354596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}