Unknown

Dataset Information

0

SILEC: a protocol for generating and using isotopically labeled coenzyme A mass spectrometry standards.


ABSTRACT: Stable isotope labeling by essential nutrients in cell culture (SILEC) was recently developed to generate isotopically labeled coenzyme A (CoA) and short-chain acyl-CoA thioesters. This was accomplished by modifying the widely used technique of stable isotope labeling by amino acids in cell culture to include [(13)C(3)(15)N]-pantothenate (vitamin B(5)), a CoA precursor, instead of the isotopically labeled amino acids. The lack of a de novo pantothenate synthesis pathway allowed for efficient and near-complete labeling of the measured CoA species. This protocol provides a step-by-step approach for generating stable isotope-labeled short-chain acyl-CoA internal standards in mammalian and insect cells as well as instructions on how to use them in stable isotope dilution mass spectrometric-based analyses. Troubleshooting guidelines, as well as a list of unlabeled and labeled CoA species, are also included. This protocol represents a prototype for generating stable isotope internal standards from labeled essential nutrients such as pantothenate. The generation and use of SILEC standards takes approximately 2-3 weeks.

SUBMITTER: Basu SS 

PROVIDER: S-EPMC3802537 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

altmetric image

Publications

SILEC: a protocol for generating and using isotopically labeled coenzyme A mass spectrometry standards.

Basu Sankha S SS   Blair Ian A IA  

Nature protocols 20111208 1


Stable isotope labeling by essential nutrients in cell culture (SILEC) was recently developed to generate isotopically labeled coenzyme A (CoA) and short-chain acyl-CoA thioesters. This was accomplished by modifying the widely used technique of stable isotope labeling by amino acids in cell culture to include [(13)C(3)(15)N]-pantothenate (vitamin B(5)), a CoA precursor, instead of the isotopically labeled amino acids. The lack of a de novo pantothenate synthesis pathway allowed for efficient and  ...[more]

Similar Datasets

| S-EPMC4458369 | biostudies-literature
| S-EPMC6422234 | biostudies-literature
| S-EPMC3381853 | biostudies-literature
| S-EPMC7212653 | biostudies-literature
| S-EPMC3361967 | biostudies-literature
| S-EPMC4974350 | biostudies-literature
| S-EPMC2528956 | biostudies-literature
| S-EPMC6599215 | biostudies-other
| S-EPMC3690382 | biostudies-other
| S-EPMC3932135 | biostudies-literature