>4grxB (B:) observed residues (from ATOM records)
qswearaetyslygftdmpsvhqrgtvvvthgegpyivdvhgrryldansglwnmvagfd
hkglieaakaqydrfpgyhaffgrmsdqtvmlseklvevspfdngrvfytnsgseandtm
vkmlwflhaaegkpqkrkiltrwnayhgvtavsasmtgkpynsvfglplpgfihltcphy
wrygeegeteaqfvarlareledtitregadtiagffaepvmgaggvippakgyfqailp
ilrkydipmisdevicgfgrtgntwgcltydfmpdaiissknltagffpmgavilgpdla
krveaaveaieefphgftasghpvgcaialkaidvvmneglaenvrrlaprfeaglkria
drpnigeyrgigfmwaleavkdkptktpfdanlsvseriantctdlglicrplgqsivlc
ppfilteaqmdemfeklekaldkvfaeva