Chains and heterogens:
PDB Chain Sequences:
>1udqA (A:) mrsdgrkedqlrpvsiqrdfleypegsclisfgktkvictasvienvpnwlkgkgqgwit aeysmlpratqqrtiresvqgriggrtheiqrmigramrtaveltkigertiwvdcdviq adggartaaitgafvavadaiiklhkegiieetpikdfvaavsvgivndrilldlnfeed saaqvdmnvvgtgsgrlsevhtmgeeysftkdelikmldlaqkginelielqkklyviqd gkwerselkevsstt
>1udqA (A:) rsdgrkedqlrpvsiqrdfleypegsclisfgktkvictasvienvpnwlkgkgqgwita eysmlpratqqrtiresvqgriggrtheiqrmigramrtaveltkigertiwvdcdviqa dggartaaitgafvavadaiiklhkegiieetpikdfvaavsvgivndrilldlnfeeds aaqvdmnvvgtgsgrlsevhtmgeeysftkdelikmldlaqkginelielqkklyviqdg kwerselkevsstt