I have a doubt concerning the following structure:

The Asiatic lions are in danger of extinction, as are the Asiatic cheetahs. (like the Asiatic cheetahs is also possible?)
Where is this rule explained:
as + verb + word
like + word

2 answers

http://grammar.ccc.commnet.edu/grammar/conjunctions.htm#subordinating_conjunctions

Read the explanation of The Case of Like and As in the box below the lists of conjunctions.
So ... have you decided how you'll rephrase your sentence?