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53.6 MB (5.7 MB compressed)
5000 x 3750 pixels
42.4 x 31.8 cm ⏐ 16.7 x 12.5 in (300dpi)
LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Clostridium botulinum neurotoxin, molecular model showing secondary structure. This is botulinum neurotoxin type A (BoNT/A), one the toxins that causes the deadly paralytic illness botulism. It is produced by the bacterium Clostridium botulinum and is usually ingested in the form of contaminated food. Type A is used in botox therapy. This single-chain protein, with a central pair of alpha-helices, contains 1295 amino acids.
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