Chains and heterogens:
PDB Chain Sequences:
>1mtcA (A:) pmilgywnvrglthpirllleytdssyeekryamgdapdydrsqwlnekfklgldfpnlp ylidgsrkitqsnaimrylarkhhlcgeteeeriradivenqvmdnrmqlimlcfnpdfe kqkpeflktipekmklyseflgkrpwfagdkvtyvdflaydildqyhifepkcldafpnl kdflarfeglkkisaymkssrylstpifsklaqwsnk
>1mtcB (B:) pmilgywnvrglthpirllleytdssyeekryamgdapdydrsqwlnekfklgldfpnlp ylidgsrkitqsnaimrylarkhhlcgeteeeriradivenqvmdnrmqlimlcfnpdfe kqkpeflktipekmklyseflgkrpwfagdkvtyvdflaydildqyhifepkcldafpnl kdflarfeglkkisaymkssrylstpifsklaqwsnk