3.4.21.B26	additional information	knockout of the enzyme by siRNA	732515	
3.4.21.B26	additional information	Pcsk5delta4-deficient allele missing exon 4 that encodes the catalytic Asp173, delta4/delta4 genotype is embryonic lethal, heterozygote mice are healthy and fertile	675967	
3.4.21.B26	additional information	stable knockout of the enzyme in HEC-1-A cells by specific siRNA	731899