The domain within your query sequence starts at position 51 and ends at position 450; the E-value for the 4bwp domain shown below is 1e-134.
MADELRQELINRHLITMAQIDQADMPAVPTEVDSYHSLFPLEPLPPPNRIQKSSNFGYIT
SCYKAVNSKDDLPYCLRRIHALVFAYDFHAGGETMMSRHFNDPNSDAYFTKRKWGQHDGP
LPRQHAGLLPESLIWAYIVQLSSALRTIHTAGLACRVMDPTKILITSKTRLRVNCVGVFD
VLTFDNSQNNNPLALMAQYQQADLISLGKVVLALACNSLAGIQRENLQKAMELVTINYSS
DLKNLILYLLTDQNRMRSVNDIMPMIGARFYTQLDAAQMRNDVIEEDLAKEVQNGRLFRL
LAKLGTINERPEFQKDPTWSETGDRYLLKLFRDHLFHQVTEAGAPWIDLSHIISCLNKLD
AGVPEKISLISRDEKSVLVVTYSDLKRCFENTFQELIAAA
This is a PDB domain - please see the PDBSUM entry of 4bwp for further annotation