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Correction: MHC Class II Tetramers Made from Isolated Recombinant α and β Chains Refolded with Affinity-Tagged Peptides

  • Peter Braendstrup,
  • Sune Justesen,
  • Thomas Østerbye,
  • Lise Lotte Bruun Nielsen,
  • Roberto Mallone,
  • Lars Vindeløv,
  • Anette Stryhn,
  • Søren Buus

Correction: MHC Class II Tetramers Made from Isolated Recombinant α and β Chains Refolded with Affinity-Tagged Peptides

  • Peter Braendstrup, 
  • Sune Justesen, 
  • Thomas Østerbye, 
  • Lise Lotte Bruun Nielsen, 
  • Roberto Mallone, 
  • Lars Vindeløv, 
  • Anette Stryhn, 
  • Søren Buus
PLOS
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There is an error in the legend of Figure 1. The correct legend is: Figure 1. Purification of H6-tagged MHC class II complexes. A) Preparative purification of DRB1*04:01 refolded with the Influenza A peptide HA307–318(H6) (YKYVKQNTLKLATHHHHHH) on IMAC column. A shallow gradient up to 50mM Imidazole in PBS (20% buffer B) eluted peak 1 containing alpha and beta chains without associated peptides, whereas peak 2, containing mature MHC II complexes, eluted by raising the concentration to 250mM imidazole in PBS (100% buffer B). B) SDS-PAGE analysis of eluted fractions, the alpha chain travels as the upper band. C) Functional LOCI assay on load, run through, and peak fractions. Notice the absence of peptide-loaded MHC class II molecules in the run through (RT) and in peak 1. D) Assessing the level of biotinylation of a DRB1*11:01 chain by incubation with increasing amounts of avidin followed by SDS-PAGE analysis.