Chains and heterogens:
PDB Chain Sequences:
>1ucbH (H:) evnlvesggglvqpggslkvscvtsgftfsdyymywvrqtpekrlewvayisqggditdy pdtvkgrftisrdnaknslylqmsrlksedtamyycarglddgawfaywgqgtlvtvsva stkgpsvfplapsskstsggtaalgclvkdyfpqpvtvswnsgaltsgvhtfpavlqssg lyslssvvtvpssslgtqtyicnvnhkpsntkvdkrvep
>1ucbL (L:) dvlmtqipvslpvslgdqasiscrssqiivhnngntylewylqkpgqspqlliykvsnrf sgvpdrfsgsgsgtdftlkisrveaedlgvyycfqgshvpftfgsgtkleikrtvaapsv fifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl sstltlskadyekhkvyacevthqglsspvtksfnrgec
>1ucbL (L:) mtqipvslpvslgdqasiscrssqiivhnngntylewylqkpgqspqlliykvsnrfsgv pdrfsgsgsgtdftlkisrveaedlgvyycfqgshvpftfgsgtkleikrtvaapsvfif ppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsst ltlskadyekhkvyacevthqglsspvtksfnrgec