Chains and heterogens:
PDB Chain Sequences:
>4xarA (A:) malkmltrlqvltlalfskgfllslgdhnflrreikiegdlvlgglfpinekgtgteecg rinedrgiqrleamlfaideinkddyllpgvklgvhildtcsrdtyaleqslefvraslt kvdeaeymcpdgsyaiqeniplliagviggsyssvsiqvanllrlfqipqisyastsakl sdksrydyfartvppdfyqakamaeilrffnwtyvstvasegdygetgieafeqearlrn isiataekvgrsnirksydsvirellqkpnarvvvlfmrsddsreliaaasranasftwv asdgwgaqesiikgsehvaygaitlelasqpvrqfdryfqslnpynnhrnpwfrdfweqk fqcslqnkrnhrrvcdkhlaidssnyeqeskimfvvnavyamahalhkmqrtlcpnttkl cdamkildgkklykdyllkinftapfnpnkdadsivkfdtfgdgmgrynvfnfqnvggky sylkvghwaetlsldvnsihwsrnsvptseghhhhhh
>4xarA (A:) rreikiegdlvlgglfpinekgtgteecgrinedrgiqrleamlfaideinkddyllpgv klgvhildtcsrdtyaleqslefvrasllliagviggsyssvsiqvanllrlfqipqisy astsaklsdksrydyfartvppdfyqakamaeilrffnwtyvstvasegdygetgieafe qearlrnisiataekvgrsnirksydsvirellqkpnarvvvlfmrsddsreliaaasra nasftwvasdgwgaqesiikgsehvaygaitlelasqpvrqfdryfqslnpynnhrnpwf rdfweqkfqcslrvcdkhlaidssnyeqeskimfvvnavyamahalhkmqrtlcpnttkl cdamkildgkklykdyllkinftapdadsivkfdtfgdgmgrynvfnfqnvggkysylkv ghwaetlsldvnsihwsrnsvptse