The domain within your query sequence starts at position 2 and ends at position 81; the E-value for the COX7B domain shown below is 7.5e-40.

MFPLARYALNYLKTPSILKIVGRLKHSKPSSEETHDKYGNMMLISGTIFCLAGYTIYMTQ
MGVEWNLSPIGRVTPQEWKK

COX7B

COX7B
PFAM accession number:PF05392
Interpro abstract (IPR008433):

Cytochrome oxidase subunit VIIB is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport. The X-ray structure of azide-bound fully oxidized cytochrome c oxidase from bovine heart at 2.9 A resolution has been determined [ (PUBMED:10771420) ].

GO component:mitochondrial respirasome (GO:0005746)
GO function:cytochrome-c oxidase activity (GO:0004129)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry COX7B