Chains and heterogens:
PDB Chain Sequences:
>1tcrA (A:) qsvtqpdarvtvsegaslqlrckysysatpylfwyvqyprqglqlllkyysgdpvvqgvn gfeaefsksnssfhlrkasvhwsdsavyfcavsgfasaltfgsgtkvivlpyiqnpepav yalkdprsqdstlclftdfdsqinvpktmesgtfitdatvldmkamdsksngaiawsnqt sftcqdifketnatypssdvpc
>1tcrB (B:) eaavtqsprnkvavtggkvtlscnqtnnhnnmywyrqdtghglrlihysygagstekgdi pdgykasrpsqenfslilelatpsqtsvyfcasggggtlyfgagtrlsvledlrnvtppk vslfepskaeiankqkatlvclargffpdhvelswwvngkevhsgvstdpqaykesnysy clssrlrvsatfwhnprnhfrcqvqfhglseedkwpegspkpvtqnisaeawgradc