Peptides can be used for ELISA assay. A peptide-based indirect ELISA was used to screen a population of 40 Multiple sclerosis patients and 39 healthy controls. The encephalitogenic myelin oligodendrocyte glycoprotein (MOG)35–55 synthetic peptides were synthesized by LifeTein.

LifeTein’s Synthetic Peptides for ELISA

All MOG peptides or Mycobacterium avium subspecies paratuberculosis (MAP) peptides were synthesized at >90% purity by LifeTein to make sure the ELISA results are clean and consistent. The plates were coated with peptides. After overnight incubation, the plate was blocked, rinsed, and late react with antibodies according to the protocol. In silico analysis identified two peptides belonging to MAP and BCG, which share sequence homology with MOG(35–55). The peptide-based indirect ELISA data showed that sharing of highly conserved linear amino acidic sequences is necessary to elicit antibody-mediated cross-reactivity.

These findings concluded that the presence of MOG (35–55)-specific antibodies in multiple sclerosis pathogenesis. This can be used as a diagnostic biomarker in multiple sclerosis.

 [PDF] Evaluation of the humoral response against mycobacterial peptides, homologous to MOG35–55, in multiple sclerosis patients

MG Marrosu, LA Sechi – 2014

… All peptides were synthesized at N90% purity commercially (LifeTein, South
Plainfield, NJ 07080 US). Purified peptides were prepared as [10 mM] stock solutions,
and were stored in single- use aliquots at −80 °C. 2.3. ELISA …

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