Chains and heterogens:
PDB Chain Sequences:
>1xu2A (A:) kkhsvlhlvpvnitskadsdvtevmwqpvlrrgrgleaqgdivrvwdtgiyllysqvlfh dvtftmgqvvsregqgrretlfrcirsmpsdpdraynscysagvfhlhqgdiitvkipra naklslsphgtflgfvkl
>1xu2A (A:) khsvlhlvpvnitskadsdvtevmwqpvlrrgrgleaqgdivrvwdtgiyllysqvlfhd vtftmgqvvsregqgrretlfrcirsmpsdpdraynscysagvfhlhqgdiitvkipran aklslsphgtflgfvkl
>1xu2B (B:) kkhsvlhlvpvnitskadsdvtevmwqpvlrrgrgleaqgdivrvwdtgiyllysqvlfh dvtftmgqvvsregqgrretlfrcirsmpsdpdraynscysagvfhlhqgdiitvkipra naklslsphgtflgfvkl
>1xu2B (B:) khsvlhlvpvnitskadsdvtevmwqpvlrrgrgleaqgdivrvwdtgiyllysqvlfhd vtftmgqvvsregqgrretlfrcirsmpsdpdraynscysagvfhlhqgdiitvkipran aklslsphgtflgfvkl
>1xu2D (D:) kkhsvlhlvpvnitskadsdvtevmwqpvlrrgrgleaqgdivrvwdtgiyllysqvlfh dvtftmgqvvsregqgrretlfrcirsmpsdpdraynscysagvfhlhqgdiitvkipra naklslsphgtflgfvkl
>1xu2D (D:) khsvlhlvpvnitskadsdvtevmwqpvlrrgrgleaqgdivrvwdtgiyllysqvlfhd vtftmgqvvsregqgrretlfrcirsmpsdpdraynscysagvfhlhqgdiitvkipran aklslsphgtflgfvkl
>1xu2R (R:) agqcsqneyfdsllhacipcqlrcssntppltcqrycnasvtnsvkg
>1xu2R (R:) csqneyfdsllhacipcqlrcssntppltcqrycna
>1xu2S (S:) agqcsqneyfdsllhacipcqlrcssntppltcqrycnasvtnsvkg
>1xu2S (S:) gqcsqneyfdsllhacipcqlrcssntppltcqrycn
>1xu2T (T:) agqcsqneyfdsllhacipcqlrcssntppltcqrycnasvtnsvkg
>1xu2T (T:) csqneyfdsllhacipcqlrcssntppltcqrycn