Chains and heterogens:
PDB Chain Sequences:
>4cyrA (A:) mskrpnflvivaddlgfsdigtfggeiatpnldalaiaglrltdfhtasaxsptrsmllt gtdhhiagigtmaealtpelegkpgyeghlnervvalpellreagyqtlmagkwhlglkp eqtphargfersfallpgaanhygfeppydestprilkgtpalyvederyldtlpegfys sdafgdkllqylkerdqsrpffaylpfsaphwplqapreivekyrgrydagpealrqerl arlkelglveadveahpvlaltrewealedeeraksaramevyaamvermdwnigrvvdy lrrqgeldntfvlfmsdngaegalleafpkfgpdlldfldrhydnslenigransyvwyg prwaqaatapsrlykafttqggirvpalvryprlsrqgaishafatvmdvtptlldlagv rhpgkrwrgreiaeprgrswlgwlsgeteaahdentvtgwglfgmrairqgdwkavylpa pvgpatwqlydlardpgeihdladsqpgklaeliehwkryvsdtgvvegaspflvr
>4cyrA (A:) krpnflvivaddlgfsdigtfggeiatpnldalaiaglrltdfhtasaxsptrsmlltgt dhhiagigtmaealtpelegkpgyeghlnervvalpellreagyqtlmagkwhlglkpeq tphargfersfallpgaanhygfeppydestprilkgtpalyvederyldtlpegfyssd afgdkllqylkerdqsrpffaylpfsaphwplqapreivekyrgrydagpealrqerlar lkelglveadveahpvlaltrewealedeeraksaramevyaamvermdwnigrvvdylr rqgeldntfvlfmsdngaegalleafpkfgpdlldfldrhydnslenigransyvwygpr waqaatapsrlykafttqggirvpalvryprlsrqgaishafatvmdvtptlldlagvrh pgkrwrgreiaeprgrswlgwlsgeteaahdentvtgwglfgmrairqgdwkavylpapv gpatwqlydlardpgeihdladsqpgklaeliehwkryvsdtgvve
>4cyrB (B:) mskrpnflvivaddlgfsdigtfggeiatpnldalaiaglrltdfhtasaxsptrsmllt gtdhhiagigtmaealtpelegkpgyeghlnervvalpellreagyqtlmagkwhlglkp eqtphargfersfallpgaanhygfeppydestprilkgtpalyvederyldtlpegfys sdafgdkllqylkerdqsrpffaylpfsaphwplqapreivekyrgrydagpealrqerl arlkelglveadveahpvlaltrewealedeeraksaramevyaamvermdwnigrvvdy lrrqgeldntfvlfmsdngaegalleafpkfgpdlldfldrhydnslenigransyvwyg prwaqaatapsrlykafttqggirvpalvryprlsrqgaishafatvmdvtptlldlagv rhpgkrwrgreiaeprgrswlgwlsgeteaahdentvtgwglfgmrairqgdwkavylpa pvgpatwqlydlardpgeihdladsqpgklaeliehwkryvsdtgvvegaspflvr
>4cyrB (B:) krpnflvivaddlgfsdigtfggeiatpnldalaiaglrltdfhtasaxsptrsmlltgt dhhiagigtmaealtpelegkpgyeghlnervvalpellreagyqtlmagkwhlglkpeq tphargfersfallpgaanhygfeppydestprilkgtpalyvederyldtlpegfyssd afgdkllqylkerdqsrpffaylpfsaphwplqapreivekyrgrydagpealrqerlar lkelglveadveahpvlaltrewealedeeraksaramevyaamvermdwnigrvvdylr rqgeldntfvlfmsdngaegalleafpkfgpdlldfldrhydnslenigransyvwygpr waqaatapsrlykafttqggirvpalvryprlsrqgaishafatvmdvtptlldlagvrh pgkrwrgreiaeprgrswlgwlsgeteaahdentvtgwglfgmrairqgdwkavylpapv gpatwqlydlardpgeihdladsqpgklaeliehwkryvsdtgvve