Chains and heterogens:
PDB Chain Sequences:
>1pfvA (A:) tqvakkilvtcalpyangsihlghmlehiqadvwvryqrmrghevnficaddahgtpiml kaqqlgitpeqmigemsqehqtdfagfnisydnyhsthseenrqlseliysrlkengfik nrtisqlydpekgmflpdrfvkgtcpkckspdqygdncevcgatyspteliepksvvsga tpvmrdsehfffdlpsfsemlqawtrsgalqeqvankmqewfesglqqwdisrdapyfgf eipnapgkyfyvwldapigymgsfknlcdkrgdsvsfdeywkkdstaelyhfigkdivyf hslfwpamlegsnfrkpsnlfvhgyvtvngakmsksrgtfikastwlnhfdadslryyyt aklssriddidlnledfvqrvnadivnkvvnlasrnagfinkrfdgvlaseladpqlykt ftdaaevigeawesrefgkavreimaladlanryvdeqapwvvakqegrdadlqaicsmg inlfrvlmtylkpvlpklteraeaflnteltwdgiqqpllghkvnpfkalynridmrqve alveaskeevk
>1pfvA (A:) akkilvtcalpyangsihlghmlehiqadvwvryqrmrghevnficaddahgtpimlkaq qlgitpeqmigemsqehqtdfagfnisydnyhsthseenrqlseliysrlkengfiknrt isqlydpekgmflpdrfvkgtcpkckspdqygdncevcgatyspteliepksvvsgatpv mrdsehfffdlpsfsemlqawtrsgalqeqvankmqewfesglqqwdisrdapyfgfeip napgkyfyvwldapigymgsfknlcdkrgdsvsfdeywkkdstaelyhfigkdivyfhsl fwpamlegsnfrkpsnlfvhgyvtvngakmsksrgtfikastwlnhfdadslryyytakl ssriddidlnledfvqrvnadivnkvvnlasrnagfinkrfdgvlaseladpqlyktftd aaevigeawesrefgkavreimaladlanryvdeqapwvvakqegrdadlqaicsmginl frvlmtylkpvlpklteraeaflnteltwdgiqqpllghkvnpfkalynridmrqvealv easkeev