Literature DB >> 6938991

Biosynthesis of vitamin B12: mode of incorporation of factor III into cobyrinic acid.

C Nussbaumer, M Imfeld, G Wörner, G Müller, D Arigoni.   

Abstract

Extensive chemical degradation of cobyrinic acid biosynthesized from a sample of factor III radiochemically labeled in its three methyl groups demonstrates that label is retained exclusively in the two methyl groups at positions C-2 and C-7 and confirms that the C-20 methyl group of the precursor is lost during formation of the corrin ring system.

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Year:  1981        PMID： 6938991      PMCID： PMC318976          DOI： 10.1073/pnas.78.1.9

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  2 in total

1.  [On the preparation of intermediates in cobyrinic acid biosynthesis by suspensions of Propionibacterium shermanii (author's transl)].

Authors:  K H Bergmann; R Deeg; K D Gneuss; H P Kriemler; G Müller
Journal:  Hoppe Seylers Z Physiol Chem       Date:  1977-10

2.  [On cobyrinic acid biosynthesis. Novel methylated hydroporphyrins and their role in cobyrinis acid formation (author's transl)].

Authors:  R Deeg; H P Kriemler; K H Bergmann; G Müller
Journal:  Hoppe Seylers Z Physiol Chem       Date:  1977-03
  2 in total
  7 in total

1.  Biosynthesis of vitamin B12: factor IV, a new intermediate in the anaerobic pathway.

Authors:  A I Scott; N J Stolowich; J Wang; O Gawatz; E Fridrich; G Müller
Journal:  Proc Natl Acad Sci U S A       Date:  1996-12-10       Impact factor: 11.205

2.  Biosynthesis of vitamin B12: nature of the volatile fragment generated during formation of the corrin ring system.

Authors:  L Mombelli; C Nussbaumer; H Weber; G Müller; D Arigoni
Journal:  Proc Natl Acad Sci U S A       Date:  1981-01       Impact factor: 11.205

3.  Regulation of cobalamin biosynthetic operons in Salmonella typhimurium.

Authors:  J C Escalante-Semerena; J R Roth
Journal:  J Bacteriol       Date:  1987-05       Impact factor: 3.490

4.  Ring contraction of hydroporphinoid to corrinoid complexes.

Authors:  V Rasetti; A Pfaltz; C Kratky; A Eschenmoser
Journal:  Proc Natl Acad Sci U S A       Date:  1981-01       Impact factor: 11.205

5.  Biosynthesis of vitamin B12: concerning the origin of the methine protons of the corrin nucleus.

Authors:  A I Scott; M Kajiwara; P J Santander
Journal:  Proc Natl Acad Sci U S A       Date:  1987-10       Impact factor: 11.205

6.  Biosynthesis of vitamin B12: identity of fragment extruded during ring contraction to the corrin macrocycle.

Authors:  A R Battersby; M J Bushell; C Jones; N G Lewis; A Pfenninger
Journal:  Proc Natl Acad Sci U S A       Date:  1981-01       Impact factor: 11.205

7.  Characterization of the enzyme CbiH60 involved in anaerobic ring contraction of the cobalamin (vitamin B12) biosynthetic pathway.

Authors:  Simon J Moore; Rebekka Biedendieck; Andrew D Lawrence; Evelyne Deery; Mark J Howard; Stephen E J Rigby; Martin J Warren
Journal:  J Biol Chem       Date:  2012-11-15       Impact factor: 5.157
  7 in total

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