The domain within your query sequence starts at position 799 and ends at position 835; the E-value for the HIF-1a_CTAD domain shown below is 3.9e-25.

ESGLPQLTSYDCEVNAPIQGSRNLLQGEELLRALDQV

HIF-1a_CTAD

HIF-1a_CTAD
PFAM accession number:PF08778
Interpro abstract (IPR014887):

Hypoxia inducible factor-1 alpha (HIF-1 alpha) is the regulatory subunit of the heterodimeric transcription factor HIF-1. It plays a key role in cellular response to low oxygen tension. This region corresponds to the C-terminal transactivation domain.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry HIF-1a_CTAD