Chains and heterogens:
PDB Chain Sequences:
>1n3qA (A:) qdslsfgfptfpsdqknlifqgdaqiknnavqltktdsngnpvastvgrilfsaqvhlwe ksssrvanfqsqfsfslksplsngadgiaffiappdttipsgsgggllglfapgtaqnts anqviavefdtfyaqdsntwdpnyphigidvnsirsvktvkwdrrdgqslnvlvtfnpst rnldvvatysdgtryevsyevdvrsvlpewvrvgfsaasgeqyqthtleswsftstllyt aqkkgenlalem
>1n3qA (A:) qdslsfgfptfpsdqknlifqgdaqiknnavqltktdsngnpvastvgrilfsaqvhlwe ksssrvanfqsqfsfslksplsngadgiaffiappdttipsgsgggllglfapgtaqnts anqviavefdtfyaqdsntwdpnyphigidvnsirsvktvkwdrrdgqslnvlvtfnpst rnldvvatysdgtryevsyevdvrsvlpewvrvgfsaasgeqyqthtleswsftstllyt a
>1n3qB (B:) qdslsfgfptfpsdqknlifqgdaqiknnavqltktdsngnpvastvgrilfsaqvhlwe ksssrvanfqsqfsfslksplsngadgiaffiappdttipsgsgggllglfapgtaqnts anqviavefdtfyaqdsntwdpnyphigidvnsirsvktvkwdrrdgqslnvlvtfnpst rnldvvatysdgtryevsyevdvrsvlpewvrvgfsaasgeqyqthtleswsftstllyt aqkkgenlalem
>1n3qB (B:) qdslsfgfptfpsdqknlifqgdaqiknnavqltktdsngnpvastvgrilfsaqvhlwe ksssrvanfqsqfsfslksplsngadgiaffiappdttipsgsgggllglfapgtaqnts anqviavefdtfyaqdsntwdpnyphigidvnsirsvktvkwdrrdgqslnvlvtfnpst rnldvvatysdgtryevsyevdvrsvlpewvrvgfsaasgeqyqthtleswsftstllyt a