Chains and heterogens:
PDB Chain Sequences:
>1vahA (A:) qyapqtqsgrtsivhlfewrwvdialecerylgpkgfggvqvsppnenivvtnpsrpwwe ryqpvsyklctrsgnenefrdmvtrcnnvgvriyvdavinhmcgsgaaagtgttcgsycn pgnrefpavpysawdfndgkcktasggiesyndpyqvrdcqlvglldlalekdyvrsmia dylnklidigvagfridaskhmwpgdikavldklhnlntnwfpagsrpfifqevidlgge aiksseyfgngrvtefkygaklgtvvrkwsgekmsylknwgegwgfmpsdralvfvdnhd nqrghgaggasiltfwdarlykiavgfmlahpygftrvmssyrwarnfvngedvndwigp pnnngvikevtinadttcgndwvcehrwreirnmvwfrnvvdgepfanwwdngsnqvafg rgnrgfivfnnddwqlsstlqtglpggtycdvisgdkvgnsctgikvyvssdgtaqfsis nsaedpfiaihaeskl