The Pfam:CD20 domain within your query sequence starts at position 56 and ends at position 190, and its E-value is 6e-10.

KLGGFHIAIAFAHLAFGGYLISTVKNLHLVVLKCWYPLWGTVSFLVAGMAAMTTVTFPKTSLKVLCVIANVISLFCALAGFFVIAKDLFLEGPFPWPIWRPYPEPTTYIQRLELTLFCFTFLEIFLSGSTAITAY
Pfam:CD20

Pfam:CD20
Pfam domain

Pfam ACC: