What Has Two Words But Thousands Of Letters

I have only two words but thousands of letters. What am I?

What Has Two Words But Thousands Of Letters. Two really long protein names. Web although i think exal has the correct answer, it could also be.

I have only two words but thousands of letters. What am I?
I have only two words but thousands of letters. What am I?

Two really long protein names. Web although i think exal has the correct answer, it could also be.

Web although i think exal has the correct answer, it could also be. Two really long protein names. Web although i think exal has the correct answer, it could also be.