The domain within your query sequence starts at position 235 and ends at position 391; the E-value for the 3a1b domain shown below is 1e-101.
RKSTTEKPKVKEIIDERTRERLVYEVRQKCRNIEDICISCGSLNVTLEHPLFIGGMCQNC KNCFLECAYQYDDDGYQSYCTICCGGREVLMCGNNNCCRCFCVECVDLLVGPGAAQAAIK EDPWNCYMCGHKGTYGLLRRREDWPSRLQMFFANNHD