Question

What is the length of a motif, in terms of amino acids residue?

(a) 30- 60

(b) 10- 20

(c) 70- 90

(d) 1- 10

I got this question in a job interview.

My query is from Protein Motifs and Domain Prediction topic in chapter Sequence Alignment of Bioinformatics

Answer 1

Correct choice is (b) 10- 20

For explanation: A typical motif is 10-20 amino acids long. For e.g. Zn-finger motif. Hence it is also referred to as super secondary structure. This motif is seen in transcription factors.