Chains and heterogens:
PDB Chain Sequences:
>1z90A (A:) maattenlpqlksavdgltemseseksgfislvsrylsgeaqhiewskiqtptdeivvpy ekmtpvsqdvaetknlldklvvlklngglgttmgctgpksvievrdgltfldliviqien lnnkygckvplvlmnsfnthddthkivekytnsnvdihtfnqskyprvvadefvpwpskg ktdkegwyppghgdvfpalmnsgkldtflsqgkeyvfvansdnlgaivdltilkhliqnk neycmevtpktladvkggtlisyegkvqlleiaqvpdehvnefksiekfkifntnnlwvn lkaikklveadalkmeiipnpkevdgvkvlqletaagaairffdnaigvnvprsrflpvk assdlllvqsdlytlvdgfvtrnkartnpsnpsielgpefkkvatflsrfksipsiveld slkvsgdvwfgssivlkgkvtvaaksgvkleipdravvenkningpedl
>1z90A (A:) enlpqlksavdgltemseseksgfislvsrylsgiewskiqtptdeivvpyekmtpvsqd vaetknlldklvvlklngglgttmgctgpksvievrdgltfldliviqienlnnkygckv plvlmnsfnthddthkivekytnsnvdihtfnqskyprvvadefvpwpskgktdkegwyp pghgdvfpalmnsgkldtflsqgkeyvfvansdnlgaivdltilkhliqnkneycmevtp ktladvkggtlisyegkvqlleiaqvpdehvnefksiekfkifntnnlwvnlkaikklve adalkmeiipnpkevdgvkvlqletaagaairffdnaigvnvprsrflpvkassdlllvq sdlytlvdgfvtrnkartnpsnpsielgpefkkvatflsrfksipsiveldslkvsgdvw fgssivlkgkvtvaaksgvkleipdravvenkningpedl
>1z90B (B:) maattenlpqlksavdgltemseseksgfislvsrylsgeaqhiewskiqtptdeivvpy ekmtpvsqdvaetknlldklvvlklngglgttmgctgpksvievrdgltfldliviqien lnnkygckvplvlmnsfnthddthkivekytnsnvdihtfnqskyprvvadefvpwpskg ktdkegwyppghgdvfpalmnsgkldtflsqgkeyvfvansdnlgaivdltilkhliqnk neycmevtpktladvkggtlisyegkvqlleiaqvpdehvnefksiekfkifntnnlwvn lkaikklveadalkmeiipnpkevdgvkvlqletaagaairffdnaigvnvprsrflpvk assdlllvqsdlytlvdgfvtrnkartnpsnpsielgpefkkvatflsrfksipsiveld slkvsgdvwfgssivlkgkvtvaaksgvkleipdravvenkningpedl
>1z90B (B:) lpqlksavdgltemseseksgfislvsryliewskiqtptdeivvpyekmtpvsqdvaet knlldklvvlklngglgttmgctgpksvievrdgltfldliviqienlnnkygckvplvl mnsfnthddthkivekytnsnvdihtfnqskyprvvadefvpwpskgktdkegwyppghg dvfpalmnsgkldtflsqgkeyvfvansdnlgaivdltilkhliqnkneycmevtpktla dvkggtlisyegkvqlleiaqvpdehvnefksiekfkifntnnlwvnlkaikklveadal kmeiipnpkevdgvkvlqletaagaairffdnaigvnvprsrflpvkassdlllvqsdly tlvdgfvtrnkartnpsnpsielgpefkkvatflsrfksipsiveldslkvsgdvwfgss ivlkgkvtvaaksgvkleipdravvenkningped