Chains and heterogens:
PDB Chain Sequences:
>3rv4A (A:) gshmldkivianrgeialeilrackelgiktvavhssadrdlkhvlladetvcigpapsv ksylnipaiisaaeitgavaihpgygflsenanfaeqversgfifigpkaetirlmgdkv saiaamkkagvpcvpgsdgplgddmdknraiakrigypviikasgggggrgmrvvrgdae laqsismtraeakaafsndmvymekylenprhveiqvladgqgnaiylaerdcsmqrrhq kvveeapapgitpelrryigercakacvdigyrgagtfeflfengefyfiemntriqveh pvtemitgvdlikeqlriaagqplsikqeevhvrghavecrinaedpntflpspgkitrf hapggfgvrweshiyagytvppyydsmigklicygenrdvaiarmknalqeliidgiktn vdlqirimndenfqhggtnihylekklglqek
>3rv4A (A:) mldkivianrgeialeilrackelgiktvavhssadrdlkhvlladetvcigpapsvksy lnipaiisaaeitgavaihpgygflsenanfaeqversgfifigpkaetirlmgdkvsai aamkkagvpcvpgsdgplgddmdknraiakrigypviikasgggggrgmrvvrgdaelaq sismtraeakaafsndmvymekylenprhveiqvladgqgnaiylaerdcsmqrrhqkvv eeapapgitpelrryigercakacvdigyrgagtfeflfengefyfiemntriqvehpvt emitgvdlikeqlriaagqplsikqeevhvrghavecrinaedpntflpspgkitrfhap ggfgvrweshiyagytvppyydsmigklicygenrdvaiarmknalqeliidgiktnvdl qirimndenfqhggtnihylekklgl