Chains and heterogens:
PDB Chain Sequences:
>1m6eX (X:) mdvrqvlhmkggagensyamnsfiqrqvisitkpiteaaitalysgdtvttrlaiadlgc ssgpnalfavteliktveelrkkmgrenspeyqiflndlpgndfnaifrslpiendvdgv cfingvpgsfygrlfprntlhfihssyslmwlsqvpigiesnkgniymantcpqsvlnay ykqfqedhalflrcraqevvpggrmvltilgrrsedrasteccliwqllamalnqmvseg lieeekmdkfnipqytpspteveaeilkegsflidhieaseiywssctkdgdgggsveee gynvarcmravaepllldhfgeaiiedvfhryklliiermskektkfinvivslirksd