Chains and heterogens:
PDB Chain Sequences:
>1r49A (A:) kkpknkdkdkkvpepdnkkkkpkkeeeqkwkwweeerypegikwkflehkgpvfappyep lpenvkfyydgkvmklspkaeevatffakmldheyttkeifrknffkdwrkemtneekni itnlskcdftqmsqyfkaqtearkqmskeeklkikeenekllkeygfcimdnhkerianf kieppglfrgrgnhpkmgmlkrrimpediiincskdakvpspppghkwkevrhdnkvtwl vswteniqgsikyimlnpssrikgekdwqkyetarrlkkcvdkirnqyredwkskemkvr qravalyfidklalragnekeegetadtvgccslrvehinlhpeldgqeyvvefdflgrd siryynkvpvekrvfknlqlfmenkqpeddlfdrlntgilnkhlqdlmegltakvfrtyn asitlqqqlkeltapdenipakilsynranravailcnhqrappktfeksmmnlqtkida kkeqladarrdlksakadakvmkdaktkkvveskkkavqrleeqlmklevqatdreenkq ialgtsklnfldpritvawckkwgvpiekiynktqrekfawaidmadedyef
>1r49A (A:) kwkwweeerypegikwkflehkgpvfappyeplpenvkfyydgkvmklspkaeevatffa kmldheyttkeifrknffkdwrkemtneekniitnlskcdftqmsqyfkaqtearkqmsk eeklkikeenekllkeygfcimdnhkerianfkieppglfrgrgnhpkmgmlkrrimped iiincsdakvpspppghkwkevrhdnkvtwlvswteniqgsikyimlnpssrikgekdwq kyetarrlkkcvdkirnqyredwkskemkvrqravalyfidklalragnekeegetadtv gccslrvehinlhpeldgqeyvvefdflgrdsiryynkvpvekrvfknlqlfmenkqped dlfdrlntgilnkhlqdlmegltakvfrtynasitlqqqlkeltapdenipakilsynra nravailcnhqmmnlqtkidakkeqladarrdlksakadakvmkdaktkkvveskkkavq rleeqlmklevqatdreenkqsklnfldpritvawckkwgvpiekiynktqrekfawaid madedyef