Chains and heterogens:
PDB Chain Sequences:
>3upbA (A:) mhhhhhhssgvdlgtenlyfqsnamqksvleqlkqvtmvvadtgdfelikkykpvdattn pslilkavkeqkysnlvaetiskvkannpdlnsddlvkeiaieilvsfgikildviegkv ssevdarvsfnsattidyakriiaryesngipkdrvlikiaatwegikaakllqkeginc nltlifdkaqakacaeagvylvspfvgritdwqmqqnnlktfpaiadddgvnsvkaiykl ykshgfktivmgasfrnveqvialagcdaltispvlleelknrdehlevkltknddvvtq spqiseadfrwlmnenamathklaegirlftkdtieleniikqnl
>3upbA (A:) mqksvleqlkqvtmvvadtgdfelikkykpvdattnpslilkavkeqkysnlvaetiskv kannpdlnsddlvkeiaieilvsfgikildviegkvssevdarvsfnsattidyakriia ryesngipkdrvlikiaatwegikaakllqkegincnltlifdkaqakacaeagvylvsp fvgritdwqmqqnnlktfpaiadddgvnsvkaiyklykshgfktivmgasfrnveqvial agcdaltispvlleelknrdehlevkltqiseadfrwlmnenamathklaegirlftkdt ieleniikqnl
>3upbB (B:) mhhhhhhssgvdlgtenlyfqsnamqksvleqlkqvtmvvadtgdfelikkykpvdattn pslilkavkeqkysnlvaetiskvkannpdlnsddlvkeiaieilvsfgikildviegkv ssevdarvsfnsattidyakriiaryesngipkdrvlikiaatwegikaakllqkeginc nltlifdkaqakacaeagvylvspfvgritdwqmqqnnlktfpaiadddgvnsvkaiykl ykshgfktivmgasfrnveqvialagcdaltispvlleelknrdehlevkltknddvvtq spqiseadfrwlmnenamathklaegirlftkdtieleniikqnl
>3upbB (B:) ksvleqlkqvtmvvadtgdfelikkykpvdattnpslilkavkeqkysnlvaetiskvka nnpdlnsddlvkeiaieilvsfgikildviegkvssevdarvsfnsattidyakriiary esngipkdrvlikiaatwegikaakllqkegincnltlifdkaqakacaeagvylvspfv gritdwqmqqnnlktfpaiadddgvnsvkaiyklykshgfktivmgasfrnveqvialag cdaltispvlleelknrdehlevkltqiseadfrwlmnenamathklaegirlftkdtie leniikqnl