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Novel Pathway for Corrinoid Compounds Production in Lactobacillus

مسار جديد لإنتاج مركبات الكورينويد في الملبنة
Authors: Andrea Carolina Torres; Verónica Vannini; Graciela Font; Lucila Saavedra; María Pía Taranto;

Novel Pathway for Corrinoid Compounds Production in Lactobacillus

Abstract

La vitamine B12 ou cobalamine est un métabolite essentiel pour l'homme, ce qui en fait un composé intéressant pour de nombreux groupes de recherche qui se concentrent sur différentes voies de synthèse des souches productrices. Dans ce travail, nous rapportons l'influence d'intermédiaires clés pour la synthèse de cobalamine ajoutés au milieu de culture dans deux souches de Lactobacillus (L.), L. reuteri CRL 1098 et L. coryniformis CRL 1001. Ici, nous rapportons que l'ajout de Co2+ et de 5,6-diméthylbenzimidazole a augmenté la production de composés corrinoïdes dans les deux souches tandis que l'ajout de L-thréonine n'a augmenté que la production de composés corrinoïdes par la souche CRL 1001. Ensuite, nous avons purifié et caractérisé par LC-MS les composés corrinoïdes obtenus. Des études physiologiques en plus de l'analyse in silico ont révélé que L. reuteri CRL 1098 et L. coryniformis CRL 1001 suivent des voies différentes pour les dernières étapes de la synthèse des composés corrinoïdes.

La vitamina B12 o cobalamina es un metabolito esencial para los seres humanos, lo que lo convierte en un compuesto interesante para muchos grupos de investigación que se centran en diferentes vías de síntesis de cepas productoras. En este trabajo, informamos la influencia de intermediarios clave para la síntesis de cobalamina añadida al medio de cultivo en dos cepas de Lactobacillus (L.), L. reuteri CRL 1098 y L. coryniformis CRL 1001. Aquí, informamos que la adición de Co2+ y 5,6-dimetilbencimidazol aumentó la producción de compuestos corrinoides en ambas cepas, mientras que la adición de L-treonina aumentó solo la producción de compuestos corrinoides por la cepa CRL 1001. Luego, purificamos y caracterizamos por LC-MS los compuestos corrinoides obtenidos. Los estudios fisiológicos además del análisis in silico revelaron que L. reuteri CRL 1098 y L. coryniformis CRL 1001 siguen diferentes vías para los últimos pasos de la síntesis de compuestos corrinoides.

Vitamin B12 or cobalamin is an essential metabolite for humans, which makes it an interesting compound for many research groups that focus in different producer-strains synthesis pathways. In this work, we report the influence of key intermediaries for cobalamin synthesis added to the culture medium in two Lactobacillus (L.) strains, L. reuteri CRL 1098 and L. coryniformis CRL 1001. Here, we report that addition of Co2+ and 5,6-dimethylbenzimidazole increased the corrinoid compounds production in both strains while addition of L-threonine increased only the corrinoid compounds production by CRL 1001 strain. Then, we purified and characterized by LC-MS the corrinoid compounds obtained. Physiological studies besides in silico analysis revealed that L. reuteri CRL 1098 and L. coryniformis CRL 1001 follow different pathways for the last steps of the corrinoid compounds synthesis.

فيتامين ب 12 أو الكوبالامين هو مستقلب أساسي للبشر، مما يجعله مركبًا مثيرًا للاهتمام للعديد من مجموعات البحث التي تركز على مسارات تخليق السلالات المنتجة المختلفة. في هذا العمل، نبلغ عن تأثير الوسطاء الرئيسيين لتوليف الكوبالامين المضاف إلى وسط الاستنبات في سلالتين من العصيات اللبنية (L.)، L. reuteri CRL 1098 و L. coryniformis CRL 1001. هنا، نذكر أن إضافة ثاني أكسيد الكربون+ و 5،6 - ثنائي ميثيل بنزيميدازول زادت من إنتاج مركبات الكورينويد في كلتا السلالتين بينما أدت إضافة L - threonine إلى زيادة إنتاج مركبات الكورينويد فقط بواسطة سلالة CRL 1001. ثم قمنا بتنقية وتمييز مركبات الكورينويد التي تم الحصول عليها بواسطة LC - MS. كشفت الدراسات الفسيولوجية إلى جانب تحليل السيليكو أن L. reuteri CRL 1098 و L. coryniformis CRL 1001 يتبعان مسارات مختلفة للخطوات الأخيرة من تخليق مركبات الكورينويد.

Country
Argentina
Keywords

Management of Hyperbilirubinemia in Newborn Infants, Lactobacillus reuteri, Metabolite, Biochemistry, Microbiology, Methylation, Gene, BIOSYNTHETIC INTERMEDIARIES, LACTOBACILLUS, cobalamin gene cluster, Rheumatology, LACTIC ACID BACTERIA, https://purl.org/becyt/ford/1.6, Biochemistry, Genetics and Molecular Biology, Health Sciences, biosynthetic intermediaries, Molecular Mechanisms of Heme Biosynthesis and Related Disorders, Corrinoid, https://purl.org/becyt/ford/1, Molecular Biology, Biology, Methyltransferase, Vitamin B12, COBALAMIN GENE CLUSTER, Life Sciences, Role of Homocysteine in Health and Disease, corrinoid synthesis, QR1-502, Cobalamin, CORRINOID SYNTHESIS, lactic acid bacteria, Lactobacillus, FOS: Biological sciences, Pediatrics, Perinatology and Child Health, Fermentation, Medicine

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
16
Top 10%
Average
Average
Green
gold