Table 2.

Secondary structures of correspondent HBRs in hRNaseA members.

	HBR1	HBR2	HBR3	PDB number
hRNase1	Loop	Loop	β-strand	2K11
hRNase2	Loop	Loop	β-strand	2C01
hRNase3	Loop	Loop	β-strand	2KB5
hRNase4	Loop	β-strand	β-strand	1RNF
hRNase5	Loop	Loop	β-strand	1H53
hRNase6	Loop	Loop	β-strand	2HKY*
hRNase7	Loop	Loop	β-strand	2HKY
hRNase8	Loop	Loop	β-strand	2HKY*

The structures of hRNase1, 2, 3, 4, 5, and 7 are collected from protein data bank (PDB), and those of RNase6, 8 were simulated by database (PS)²—Protein Structure Prediction Server (http://ps2.life.nctu.edu.tw/). *Denotes simulated structures using hRNase7 as template.