[grokkedit]

About southern blot there is more: it's a method used to find a specific DNA sequence in a DNA sample, and was named after its creator.

When a similar method was invented that applies to RNA, was of course named Southern.

When the one for proteins was invented, was named Western.

[jszymborski]

> When a similar method was invented that applies to RNA, was of course named Southern.

I think you meant Northern :)

Also, there are Eastern blots for PTMs