The Pfam:CD20 domain within your query sequence starts at position 27 and ends at position 172, and its E-value is 2.3e-37.

ALGAIQILNGILILALGIFLVCLQHVSHHFRHFFFFTFYTGYPLWGAVFFISSGSLTVAAGRNPTRMLMQNSFGINIASTTIAFVGTVFLSVHLAFNTQAFKGCQSSPSPDVCISLGSSSDGLVSLMLILTLLELSVTISISAMWC
Pfam:CD20

Pfam:CD20
Pfam domain

Pfam ACC: