The domain within your query sequence starts at position 1486 and ends at position 2009; the E-value for the RPT_1 domain shown below is 8.08e-127.

VHPESSEGEEHSVVPQRHSGSGHGHGHGQGQGQAGHQQRESVHGQRGRPQGPSQDSSRQP
QAGQGQPSQSGSGRSPGRSPVHPESSEGEEHSVVPQRHSGSGHGYGQGQAGHQQRESVHG
QRGRPQGPSQDSSRQPQAGQGQPSQSGSGRSPRRSPVHPESSEDEEHSVIPQRHSGSGHS
HGQGQVHAEHQQRESVHGQRGRPQGPSQDSSRQPQAGQGQPSQSGSGRSPRRSPVHPESS
EGEEHSVVPQRHSGSGHGHGHGQGQGQAGHQQRESVHGQRGRPQGPSQDSSRQPQAGQGQ
PLQSGSGRSPRRSPVHPESSEGEEHSVVPQRHSGSGHGHGQGQGQAGHQQRESVHGQRGR
PQGPSQDSSRQPQAGQGQPSQSGSGRSPRRSPVHPESSEGEEHSVVPQRHSGSGHGHGQG
QGQAGHQQRESVHGQRGRPQGPSQDSSRQPQAGQGQPSQSSSGRSPRRSPVHPESSEGEE
HSVVPQRHSGSGHGHGQGQGQAGHQQRESLHGQRGRSQSPFHPS

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.