>3vkvB (B:) observed residues (from ATOM records)
dkdhqkvilvgdgavgssyayamvlqgiaqeigivdifkdktkgdaidlsnalpftspkk
iysaeysdakdadlvvitagapqkpgetrldlvnknlkilksivdpivdsgfngiflvaa
npvdiltyatwklsgfpknrvvgsgtsldtarfrqsiaemvnvdarsvhayimgehgdte
fpvwshaniggvtiaewvkahpeikedklvkmfedvrdaayeiiklkgatfygiatalar
iskailndenavlplsvymdgqyglndiyigtpavinrngiqnileipltdheeesmqks
asqlkkvltdafa