Question

What are acceptable E-values for a nucleotide sequence alignement vs. an acceptable E-value for an amino acid sequence?​

Answer 1

Answer:

The Expect value (E) is a parameter that describes the number of hits one can "expect" to see by chance when searching a database of a particular size. It decreases exponentially as the Score (S) of the match increases. Essentially, the E value describes the random background noise.