Chains and heterogens:
PDB Chain Sequences:
>1kemH (H:) evklvesggglgqpggslrlscatsgftftdyyfnwarqppgkalewlgfirnkakgytt eysasvkgrftisrdnsqgilylqmntlraedsatyycarwgsyamdywgqgtsvtvssa kttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdl ytlsssvtvpssprpsetvtcnvahpasstkvdkkivp
>1kemL (L:) dvlmtqtplslpvslgdqasiscrfsqsivhsngntylewylqksgqspklliykvsnrf sgvpdrfsgsgsgtdftlkisrveaedlgvyycfqgshvprtfgggtkleikradaaptv sifppsseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysm sstltltkdeyerhnsytceathktstspivksfnrn