Chains and heterogens:
PDB Chain Sequences:
>1e3kA (A:) spgqdiqlipplinllmsiepdviyaghdntkpdtssslltslnqlgerqllsvvkwsks lpgfrnlhiddqitliqyswmslmvfglgwrsykhvsgqmlyfapdlilneqrmkessfy slcltmwqipqefvklqvsqeeflcmkvllllntipleglrsqtqfeemrssyirelika iglrqkgvvsssqrfyqltklldnlhdlvkqlhlyclntfiqsralsvefpemmseviaa qlpkilagmvkpllfhkk
>1e3kA (A:) qlipplinllmsiepdviyaghdntkpdtssslltslnqlgerqllsvvkwskslpgfrn lhiddqitliqyswmslmvfglgwrsykhvsgqmlyfapdlilneqrmkessfyslcltm wqipqefvklqvsqeeflcmkvllllntipleglrsqtqfeemrssyirelikaiglrqk gvvsssqrfyqltklldnlhdlvkqlhlyclntfiqsralsvefpemmseviaaqlpkil agmvkpllfhk
>1e3kB (B:) spgqdiqlipplinllmsiepdviyaghdntkpdtssslltslnqlgerqllsvvkwsks lpgfrnlhiddqitliqyswmslmvfglgwrsykhvsgqmlyfapdlilneqrmkessfy slcltmwqipqefvklqvsqeeflcmkvllllntipleglrsqtqfeemrssyirelika iglrqkgvvsssqrfyqltklldnlhdlvkqlhlyclntfiqsralsvefpemmseviaa qlpkilagmvkpllfhkk
>1e3kB (B:) lipplinllmsiepdviyaghdntkpdtssslltslnqlgerqllsvvkwskslpgfrnl hiddqitliqyswmslmvfglgwrsykhvsgqmlyfapdlilneqrmkessfyslcltmw qipqefvklqvsqeeflcmkvllllntipleglrsqtqfeemrssyirelikaiglrqkg vvsssqrfyqltklldnlhdlvkqlhlyclntfiqsralsvefpemmseviaaqlpkila gmvkpllfh