>4r31E (E:) observed residues (from ATOM records)
evfhlgltkamlkgakiavipgdparseriaqrmdkpeflassreftswlgylenepvvv
cstgiggpsvsicveelaqlgvgtflrigttgaiqpyinvgdvlvttgavrldgasrhfa
pleypavadfsctnalysaavaqgitpyvgitassdtfypgqerydtfsgkvypayqgsl
kqwqdlnvmnyemesatlftmcaalglkagmvagvivnrtqqeipneatiksteqkavav
vieaarrlisa