Chains and heterogens:
PDB Chain Sequences:
>1y44A (A:) mellflgtgagipakarnvtsvalklleerrsvwlfdcgeatqhqmlhttikprkiekif ithmhgdhvyglpgllgsrsfqggedeltvygpkgikafietslavtkthltyplaiqei eegivfeddqfivtavsvihgveafgyrvqekdvpgslkadvlkemnippgpvyqkikkg etvtledgriingndfleppkkgrsvvfsgdtrvsdklkelardcdvmvheatfakedrk laydyyhstteqaavtakearakqlilthisaryqgdaslelqkeavdvfpnsvaaydfl evnvprgklaaalehhhhhh
>1y44A (A:) mellflgtgagipakarnvtsvalklleerrsvwlfdcgeatqhqmlhttikprkiekif ithmhgdhvyglpgllgsrsfqggedeltvygpkgikafietslavtkthltyplaiqei eegivfeddqfivtavsvihgveafgyrvqekdvpgslleppkkgrsvvfsgdtrvsdkl kelardcdvmvheatfakedrklaydyyhstteqaavtakearakqlilthisaryqgda slelqkeavdvfpnsvaaydflevnvprg
>1y44B (B:) mellflgtgagipakarnvtsvalklleerrsvwlfdcgeatqhqmlhttikprkiekif ithmhgdhvyglpgllgsrsfqggedeltvygpkgikafietslavtkthltyplaiqei eegivfeddqfivtavsvihgveafgyrvqekdvpgslkadvlkemnippgpvyqkikkg etvtledgriingndfleppkkgrsvvfsgdtrvsdklkelardcdvmvheatfakedrk laydyyhstteqaavtakearakqlilthisaryqgdaslelqkeavdvfpnsvaaydfl evnvprgklaaalehhhhhh
>1y44B (B:) mellflgtgagipakarnvtsvalklleerrsvwlfdcgeatqhqmlhttikprkiekif ithmhgdhvyglpgllgsrsfqggedeltvygpkgikafietslavtkthltyplaiqei eegivfeddqfivtavsvihgveafgyrvqekdvpgslkadvlkemnippgpvyqkikkg etvtledgriingndfleppkkgrsvvfsgdtrvsdklkelardcdvmvheatfakhstt eqaavtakearakqlilthisaryqgdaslelqkeavdvfpnsvaaydflevnvprg