Chains and heterogens:
PDB Chain Sequences:
>1gudA (A:) aaeyavvlktlsnpfwvdmkkgiedeaktlgvsvdifaspsegdfqsqlqlfedlsnkny kgiafaplssvnlvmpvarawkkgiylvnldekidmdnlkkaggnveafvttdnvavgak gasfiidklgaeggevaiiegkagnasgearrngateafkkasqiklvasqpadwdrika ldvatnvlqrnpnikaiycandtmamgvaqavanagktgkvlvvgtdgipearkmveagq mtatvaqnpadigatglklmvdaeksgkvipldkapefklvdsilvtq
>1gudB (B:) aaeyavvlktlsnpfwvdmkkgiedeaktlgvsvdifaspsegdfqsqlqlfedlsnkny kgiafaplssvnlvmpvarawkkgiylvnldekidmdnlkkaggnveafvttdnvavgak gasfiidklgaeggevaiiegkagnasgearrngateafkkasqiklvasqpadwdrika ldvatnvlqrnpnikaiycandtmamgvaqavanagktgkvlvvgtdgipearkmveagq mtatvaqnpadigatglklmvdaeksgkvipldkapefklvdsilvtq