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Specific recognition of mimivirus collagen L71 by human sera. Representative Western blots of L71-positive sera from healthy subjects (HS) and rheumatoid arthritis (RA) patients recognizing mimivirus collagen L71 but not a fragment of human collagen type III containing 114 G-X-Y repeats (CIII). Sera were diluted 1:4,000. Positions of recombinant L71 and CIII proteins in the blots are shown at the left of the panel using an anti-His6 antibody (His6).
