>3tzvA (A:) observed residues (from ATOM records)
nqveqspqsliilegknctlqcnytvspfsnlrwykqdtgrgpvsltimtfsentksngr
ytatldadtkqsslhitasqlsdsasyicvvsdrtlgrlyfgrgtqltvwpdiqnpdpav
yqlrdsksksvclftdfdsqtnvsqskdsdvyitdkcvldmrsmdfksnsavawsnksdf
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