Chains and heterogens:
PDB Chain Sequences:
>3e7xA (A:) mkllhaiqthaetypqtdafrsqgqsltyqelweqsdraaaaiqkrisgekkspilvygh mephmivsflgsvkaghpyipvdlsipseriakiiessgaellihaaglsidavgqqiqt vsaeelleneggsvsqdqwvkehetfyiiytsgstgnpkgvqisaanlqsftdwicadfp vsggkiflnqapfsfdlsvmdlypclqsggtlhcvtkdavnkpkvlfeelkksglnvwts tpsfvqmclmdpgfsqdllphadtfmfcgevlpvsvakallerfpkakifntygpteatv avtsveitndvisrseslpvgfakpdmnifimdeegqplpegekgeiviagpsvsrgylg epeltekaffshegqwayrtgdagfiqdgqifcqgrldfqiklhgyrmeleeiefhvrqs qyvrsavvipyqpngtveyliaaivpeehefekefqltsaikkelaaslpaymiprkfiy qdhiqmtangkidrkrigeevlvrshhhhhh
>3e7xA (A:) mkllhaiqthaetypqtdafrsqgqsltyqelweqsdraaaaiqkrisgekkspilvygh mephmivsflgsvkaghpyipvdlsipseriakiiessgaellihaaglsidavgqqiqt vsaeelleneggsvsqdqwvkehetfyiiytsgstgnpkgvqisaanlqsftdwicadfp vsggkiflnqapfsfdlsvmdlypclqsggtlhcvtkdavnkpkvlfeelkksglnvwts tpsfvqmclmdpgfsqdllphadtfmfcgevlpvsvakallerfpkakifntygpteatv avtsveitndvisrseslpvgfakpdmnifimdeegqplpegekgeiviagpsvsrgylg epeltekaffshegqwayrtgdagfiqdgqifcqgrldfqiklhgyrmeleeiefhvrqs qyvrsavvipyqpngtveyliaaivpeehefekefqltsaikkelaaslpaymiprkfiy qdhiqmtangkidrkrigeevlvrshhh