cDNA sequence and deduced amino acid sequence of the
WFIKKN gene. The signal peptide of the predicted WFIKKN
protein is bold and underlined. The protein sequences corresponding to
the WAP domain (WAP-domain), the follistatin domain (FS-domain), the Ig
domain (Ig-domain), the two Kunitz-type inhibitor domains (KU-domains 1
and 2), and the NTR module (NTR-domain) are underlined. Nucleotides
171–172, separated by an intron in the WFIKKN gene, are
highlighted by a bold double underline. The nucleotide positions
matching the PCR primers used for amplification of the cDNA from a
fetal lung cDNA library are underlined.