Chains and heterogens:
PDB Chain Sequences:
>1q3eA (A:) gsamdssrrqyqekykqveqymsfhklpadfrqkihdyyehryqgkmfdedsilgelngp lreeivnfncrklvasmplfanadpnfvtamltklkfevfqpgdyiiregtigkkmyfiq hgvvsvltkgnkemklsdgsyfgeiclltrgrrtasvradtycrlyslsvdnfnevleey pmmrrafetvaidrldrigkknsillh
>1q3eA (A:) dssrrqyqekykqveqymsfhklpadfrqkihdyyehryqgkmfdedsilgelngplree ivnfncrklvasmplfanadpnfvtamltklkfevfqpgdyiiregtigkkmyfiqhgvv svltgnkemklsdgsyfgeiclltrgrrtasvradtycrlyslsvdnfnevleeypmmrr afetvaidrldr
>1q3eB (B:) gsamdssrrqyqekykqveqymsfhklpadfrqkihdyyehryqgkmfdedsilgelngp lreeivnfncrklvasmplfanadpnfvtamltklkfevfqpgdyiiregtigkkmyfiq hgvvsvltkgnkemklsdgsyfgeiclltrgrrtasvradtycrlyslsvdnfnevleey pmmrrafetvaidrldrigkknsillh
>1q3eB (B:) dssrrqyqekykqveqymsfhklpadfrqkihdyyehryqgkmfdedsilgelngplree ivnfncrklvasmplfanadpnfvtamltklkfevfqpgdyiiregtigkkmyfiqhgvv svltemklsdgsyfgeiclltrgrrtasvradtycrlyslsvdnfnevleeypmmrrafe tvaidrldr