Chains and heterogens:
PDB Chain Sequences:
>2cexA (A:) adydlkfgmnagtssneykaaemfakevkeksqgkieislypssqlgddramlkqlkdgs ldftfaesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtlls qayngtrqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtn avdgqenplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaen aakyhtklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkq ieainp
>2cexA (A:) dydlkfgmnagtssneykaaemfakevkeksqgkieislypssqlgddramlkqlkdgsl dftfaesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtllsq ayngtrqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtna vdgqenplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaena akyhtklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkqi eain
>2cexB (B:) adydlkfgmnagtssneykaaemfakevkeksqgkieislypssqlgddramlkqlkdgs ldftfaesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtlls qayngtrqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtn avdgqenplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaen aakyhtklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkq ieainp
>2cexB (B:) dydlkfgmnagtssneykaaemfakevkeksqgkieislypssqlgddramlkqlkdgsl dftfaesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtllsq ayngtrqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtna vdgqenplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaena akyhtklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkqi eainp
>2cexC (C:) adydlkfgmnagtssneykaaemfakevkeksqgkieislypssqlgddramlkqlkdgs ldftfaesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtlls qayngtrqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtn avdgqenplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaen aakyhtklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkq ieainp
>2cexC (C:) dydlkfgmnagtssneykaaemfakevkekieislypssqlgddramlkqlkdgsldftf aesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtllsqayng trqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtnavdgq enplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaenaakyh tklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkqieain
>2cexD (D:) adydlkfgmnagtssneykaaemfakevkeksqgkieislypssqlgddramlkqlkdgs ldftfaesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtlls qayngtrqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtn avdgqenplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaen aakyhtklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkq ieainp
>2cexD (D:) adydlkfgmnagtssneykaaemfakevkeksqgkieislypssqlgddramlkqlkdgs ldftfaesarfqlfypeaavfalpyvisnynvaqkalfdtefgkdlikkmdkdlgvtlls qayngtrqttsnrainsiadmkglklrvpnaatnlayakyvgasptpmafsevylalqtn avdgqenplaavqaqkfyevqkflamtnhilndqlylvsnetykelpedlqkvvkdaaen aakyhtklfvdgekdlvtffekqgvkithpdlvpfkesmkpyyaefvkqtgqkgesalkq ieain