Chains and heterogens:
PDB Chain Sequences:
>1nrlA (A:) mkkghhhhhhgsertgtqplgvqglteeqrmmirelmdaqmktfdttfshfknfrlpgvl ssgcelpeslqapsreeaakwsqvrkdlcslkvslqlrgedgsvwnykppadsggkeifs llphmadmstymfkgiisfakvisyfrdlpiedqisllkgaafelcqlrfntvfnaetgt wecgrlsycledtaggfqqlllepmlkfhymlkklqlheeeyvlmqaislfspdrpgvlq hrvvdqlqeqfaitlksyiecnrpqpahrflflkimamltelrsinaqhtqrllriqdih pfatplmqelfgitgs
>1nrlA (A:) glteeqrmmirelmdaqmktfdttfshfknfrlpgvsreeaakwsqvrkdlcslkvslql rgedgsvwnykppadsggkeifsllphmadmstymfkgiisfakvisyfrdlpiedqisl lkgaafelcqlrfntvfnaetgtwecgrlsycledtaggfqqlllepmlkfhymlkklql heeeyvlmqaislfspdrpgvlqhrvvdqlqeqfaitlksyiecnrpqpahrflflkima mltelrsinaqhtqrllriqdihpfatplmqelfgitg
>1nrlB (B:) mkkghhhhhhgsertgtqplgvqglteeqrmmirelmdaqmktfdttfshfknfrlpgvl ssgcelpeslqapsreeaakwsqvrkdlcslkvslqlrgedgsvwnykppadsggkeifs llphmadmstymfkgiisfakvisyfrdlpiedqisllkgaafelcqlrfntvfnaetgt wecgrlsycledtaggfqqlllepmlkfhymlkklqlheeeyvlmqaislfspdrpgvlq hrvvdqlqeqfaitlksyiecnrpqpahrflflkimamltelrsinaqhtqrllriqdih pfatplmqelfgitgs
>1nrlB (B:) glteeqrmmirelmdaqmktfdttfshfknfrlpgvreeaakwsqvrkdlcslkvslqlr gedgsvwnykppadsggkeifsllphmadmstymfkgiisfakvisyfrdlpiedqisll kgaafelcqlrfntvfnaetgtwecgrlsycledtaggfqqlllepmlkfhymlkklqlh eeeyvlmqaislfspdrpgvlqhrvvdqlqeqfaitlksyiecnrpqpahrflflkimam ltelrsinaqhtqrllriqdihpfatplmqelfgi