Chains and heterogens:
PDB Chain Sequences:
>1lxtA (A:) vkivtvktkaypdqkpgtsglrkrvkvfqsstnyaenfiqsiistvepaqrqeatlvvgg dgrfymkeaiqlivriaaangigrlvigqngilstpavsciirkikaiggiiltashnpg gpngdfgikfnisnggpapeaitdkifqisktieeyaicpdlkvdlgvlgkqqfdlenkf kpftveivdsveayatmlrnifdfnalkellsgpnrlkiridamhgvvgpyvkkilceel gapansavncvpledfgghhpdpnltyaadlvetmksgehdfgaafdgdgdrnmilgkhg ffvnpsdsvaviaanifsipyfqqtgvrgfarsmptsgaldrvanatkialyetptgwkf fgnlmdasklslcgeesfgtgsdhirekdglwavlawlsilatrkqsvedilkdhwhkfg rnfftrydyeeveaegatkmmkdlealmfdrsfvgkqfsandkvytvekadnfeyhdpvd gsvsknqglrlifadgsriifrlsgtgsagatirlyidsyekdnakinqdpqvmlaplis ialkvsqlqertgrtaptvit
>1lxtB (B:) vkivtvktkaypdqkpgtsglrkrvkvfqsstnyaenfiqsiistvepaqrqeatlvvgg dgrfymkeaiqlivriaaangigrlvigqngilstpavsciirkikaiggiiltashnpg gpngdfgikfnisnggpapeaitdkifqisktieeyaicpdlkvdlgvlgkqqfdlenkf kpftveivdsveayatmlrnifdfnalkellsgpnrlkiridamhgvvgpyvkkilceel gapansavncvpledfgghhpdpnltyaadlvetmksgehdfgaafdgdgdrnmilgkhg ffvnpsdsvaviaanifsipyfqqtgvrgfarsmptsgaldrvanatkialyetptgwkf fgnlmdasklslcgeesfgtgsdhirekdglwavlawlsilatrkqsvedilkdhwhkfg rnfftrydyeeveaegatkmmkdlealmfdrsfvgkqfsandkvytvekadnfeyhdpvd gsvsknqglrlifadgsriifrlsgtgsagatirlyidsyekdnakinqdpqvmlaplis ialkvsqlqertgrtaptvit