The domain within your query sequence starts at position 1899 and ends at position 2119; the E-value for the 4nf9 domain shown below is 1e-115.

KEQTTKTEELLDQLSLSEWDVIEWSDDQAVFTFVYDSIELIITFGEPLVGLPFLDKACRK
INALSFQSLLDEDKAPPSSLLVHKLIFQYIEEQESWKKKCTAQHQVPQMLQELSLVVNHC
RLLGEEIEFLKRWGPNYSLMHINVNNTELRLLFSSCAAFAKFEITLSPSAHYPLVPLPFT
IHNHIGKTGHDEIAAIISKVPLEENYLKNVVKQIYQDLLKD

This is a PDB domain - please see the PDBSUM entry of 4nf9 for further annotation