Chains and heterogens:
PDB Chain Sequences:
>1p43A (A:) avskvyarsvydsrgnptvevelttekgvfrsivpsgastgvhealemrdgdkskwmgkg vlhavknvndviapafvkanidvkdqkavddflisldgtanksklganailgvslaasra aaaeknvplykhladlsksktspyvlpvpflnvlnggshaggalalqqfmiaptgaktfa ealrigsevyhnlksltkkrygasagnvgdeggvapniqtaeealdlivdaikaaghdgk vkigldcasseffkdgkydldfknpnsdkskwltgpqladlyhslmkrypivsiedpfae ddweawshffktagiqivaddltvtnpkriataiekkaadalllkvnqigtlsesikaaq dsfaagwgvmvshrsgetedtfiadlvvglrtgqiktgaparserlaklnqllrieeelg dnavfagenfhhgdkl
>1p43B (B:) avskvyarsvydsrgnptvevelttekgvfrsivpsgastgvhealemrdgdkskwmgkg vlhavknvndviapafvkanidvkdqkavddflisldgtanksklganailgvslaasra aaaeknvplykhladlsksktspyvlpvpflnvlnggshaggalalqqfmiaptgaktfa ealrigsevyhnlksltkkrygasagnvgdeggvapniqtaeealdlivdaikaaghdgk vkigldcasseffkdgkydldfknpnsdkskwltgpqladlyhslmkrypivsiedpfae ddweawshffktagiqivaddltvtnpkriataiekkaadalllkvnqigtlsesikaaq dsfaagwgvmvshrsgetedtfiadlvvglrtgqiktgaparserlaklnqllrieeelg dnavfagenfhhgdkl