It's impossible to give a definitive number of amino acids in RNA polymerase without specifying which organism you're interested in. Here's why:

* RNA polymerase is a complex enzyme: It's made up of multiple protein subunits. The number and types of subunits can vary between organisms.

* Subunit sizes differ: Even within the same organism, different subunits of RNA polymerase have different sizes, meaning they contain different numbers of amino acids.

To answer your question, you would need to specify:

1. The organism: Are you interested in bacterial, archaeal, or eukaryotic RNA polymerase?

2. The specific type of RNA polymerase: For example, eukaryotes have RNA polymerases I, II, and III, each with different subunit compositions.

Once you provide this information, you can find the specific protein sequences of each subunit and calculate the total number of amino acids.