There were 2 matches in SMART for your query appX. The results are sorted based on relevance.

APPX_ECOLI (P24244)

Escherichia coli K-12 protein

Putative cytochrome bd-II ubiquinol oxidase subunit AppX

A0A124DVB6_SALCE (A0A124DVB6)

Salmonella enterica protein

Putative cytochrome bd-II ubiquinol oxidase subunit AppX