Expression pattern for the classII helical cytokine receptor genes. RNA samples were prepared from tissues, reverse transcribed and abundance of each cDNA was measured by QPCR using oligonucleotides listed in supplementary material. All data were normalized to the level of hnRNPA2 cDNA. 5% confidence in a student T test is shown. Orf4 stands for the T nigroviridis homologue of the human C21orf4 gene.