Chains and heterogens:
PDB Chain Sequences:
>1gtg1 (1:) aaptaytpldvaqayqfpegldgqgqciaiielgggydetslaqyfaslgvsapqvvsvs vdgatnqptgdpngpdgeveldievagalapgakiavyfapntdagflnaittavhdpth kpsivsiswggpedswapasiaamnrafldaaalgvtvlaaagdsgstdgeqdglyhvdf paaspyvlacggtrlvasagrieretvwndgpdggstgggvsrifplpswqeranvppsa npgagsgrgvpdvagnadpatgyevvidgettviggtsavaplfaalvarinqklgkpvg ylnptlyqlppevfhditegnndianrariyqagpgwdpctglgspigirllqallp