Oh my goodness, how far from reality some illustrations, aka. scientific diagrams, are from the truth. I do not understand how individuals who are supposed to “know” a topic, a “protein” a function of something like surfactant can use a ridiculous diagram like this and expect to gain any credibility whatsoever. My gosh…. These diagrams have nothing at all to do with either SP-D or SP-A, they are fake news, provide conflicting understanding and do little to advance the knowledge of how proteins really look. So sorry, but there is absolutely no excuse for this lack of understanding and depth of falsity.
I wonder if i could establish a monthly award for the dumbest scientific diagram ever seen.