Chains and heterogens:
PDB Chain Sequences:
>1c3vA (A:) mrvgvlgakgkvgttmvravaaaddltlsaeldagdplslltdgntevvidfthpdvvmg nleflidngihavvgttgftaerfqqveswlvakpntsvliapnfaigavlsmhfakqaa rffdsaevielhhphkadapsgtaartakliaearkglppnpdatstslpgargadvdgi pvhavrlaglvahqevlfgtegetltirhdsldrtsfvpgvllavrriaerpgltvglep lldlh
>1c3vB (B:) mrvgvlgakgkvgttmvravaaaddltlsaeldagdplslltdgntevvidfthpdvvmg nleflidngihavvgttgftaerfqqveswlvakpntsvliapnfaigavlsmhfakqaa rffdsaevielhhphkadapsgtaartakliaearkglppnpdatstslpgargadvdgi pvhavrlaglvahqevlfgtegetltirhdsldrtsfvpgvllavrriaerpgltvglep lldlh