The domain within your query sequence starts at position 1703 and ends at position 2176; the E-value for the Apt1 domain shown below is 2.4e-112.

IISRCNCRMYYISYSHDIDPELATQIKPPEVHENQEKEDLLKKQEGAVDTFTLIHHELEI
STNPAQYAMILDIVNNLLLHVEPKRKEHSEKKQRVRFQLEISSNPEEQRSSILHLQEAVR
QHVAQIRHLEKQMYSIMKSLQDDSKNENLLDLNQKLQLQLNQEKANLQLESEELNILIRC
FKDFQLQRANKMELRKQQEDVSVVRRTEFYFAQARWRLTEEDGQLGIAELELQRFLYSKV
NKSDDTAEHLLELGWFTMNNLLPNAIYKVVLRPQSSCQSGRQLALRLFSKVRPPVGGISV
KEHFEVNVVPLTIQLSHRFFHRMMGFFFPGRNVEDDEVGDEEDKSKLVTTGIPVVKPRQL
IATDDAVPLGSGKGVAQGLTRSSGVRRSFRKLPEHPVDDIDKMKERAAMNNSFIYIKIPQ
VPLCVSYKGEKNSVDWGDLNLVLPCLEYHNNTWTWLDFAMAVKRDSRKALVAQV

Apt1

Apt1
PFAM accession number:PF10351
Interpro abstract (IPR019443):

The function of the FMP27 protein is not known. FMP27 is the product of a nuclear encoded gene but it is detected in highly purified mitochondria in high-throughput studies [ (PUBMED:16823961) ].

This domain is found in fungi, metazoans and plants. These include FMP27 and "maize" protein APT1 and Arabidopsis homologues SABRE and KIP. APT1 is required for pollen tube growth. It is a Golgi-localised protein and appears to regulate vesicular trafficking [ (PUBMED:16299389) ]. SABRE and KIP are APT1 homologues and they are involved in the elongation of root cortex cells and pollen tubes respectively.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry Apt1