Chains and heterogens:
PDB Chain Sequences:
>1vi6A (A:) mslekeyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaa kflsryepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvf vndpaidkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareia kirgqdftysiedfeaeleggshhhhhh
>1vi6A (A:) eyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaakflsr yepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvfvndpa idkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareiakirgq dftysiedfeael
>1vi6B (B:) mslekeyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaa kflsryepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvf vndpaidkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareia kirgqdftysiedfeaeleggshhhhhh
>1vi6B (B:) eyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaakflsr yepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvfvndpa idkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareiakirgq dftysiedfeael
>1vi6C (C:) mslekeyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaa kflsryepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvf vndpaidkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareia kirgqdftysiedfeaeleggshhhhhh
>1vi6C (C:) eyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaakflsr yepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvfvndpa idkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareiakirgq dftysiedfeaele
>1vi6D (D:) mslekeyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaa kflsryepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvf vndpaidkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareia kirgqdftysiedfeaeleggshhhhhh
>1vi6D (D:) eyeylvppddylaagvhigtqiktgdmkkfifkvrqdglyvldirklderirvaakflsr yepskillvaarqyahkpvqmfskvvgsdyivgrfipgtltnpmlseyrepevvfvndpa idkqavseatavgipvvalcdsnnssadvdlviptnnkgrralaivywllareiakirgq dftysiedfeael