Chains and heterogens:
PDB Chain Sequences:
>1mgvA (A:) mttddlafdqrhilhpytsmtsplpvypvvsaegcelilsdgrrlvdgmsswwaaihgyn hpqlnaamksqidamshvmfggithapaielcrklvamtpqplecvfladsgsvavevam kmalqywqakgearqrfltfrngyhgdtfgamsvcdpdnsmhslwkgylpenlfapapqs rmdgewderdmvgfarlmaahrheiaaviiepivqgaggmrmyhpewlkrirkicdregi lliadeiatgfgrtgklfacehaeiapdilclgkaltggtmtlsatlttrevaetisnge agcfmhgptfmgnplacaaanaslailesgdwqqqvadievqlreqlapardaemvadvr vlgaigvvetthpvnmaalqkffveqgvwiapfgkliylmppyiilpqqlqrltaavnra vqdetffc
>1mgvB (B:) mttddlafdqrhilhpytsmtsplpvypvvsaegcelilsdgrrlvdgmsswwaaihgyn hpqlnaamksqidamshvmfggithapaielcrklvamtpqplecvfladsgsvavevam kmalqywqakgearqrfltfrngyhgdtfgamsvcdpdnsmhslwkgylpenlfapapqs rmdgewderdmvgfarlmaahrheiaaviiepivqgaggmrmyhpewlkrirkicdregi lliadeiatgfgrtgklfacehaeiapdilclgkaltggtmtlsatlttrevaetisnge agcfmhgptfmgnplacaaanaslailesgdwqqqvadievqlreqlapardaemvadvr vlgaigvvetthpvnmaalqkffveqgvwiapfgkliylmppyiilpqqlqrltaavnra vqdetffc