Alignment of the sequence of the NTR module of the WFIKKN protein
(wfikkn_hu) with those of murine-, chicken-, and human-secreted
apoptosis-related proteins (sarp1_mu, AC O35297;
sarp2_chick, AC AF218056; sarp-2_hu, AC O14779 and sarp-3_hu, AC
O14780), bullfrog and bovine frza proteins (frza_xela, AC Q9YI24 and
frza_bo, AC O19116), bullfrog frzb3 protein (frzb3_xela, AF136184),
and chicken crescent protein (crs_chick, AF006508). Residues
conserved in more than 50% of the sequences are highlighted in bold.