Chains and heterogens:
PDB Chain Sequences:
>2ramA (A:) pyveiieqpkqrgmrfrykcegrsagsipgerstdttkthptikingytgpgtvrislvt kdpphrphphelvgkdcrdgyyeadlcpdrsihsfqnlgiqcvkkrdleqaisqriqtnn npfhvpieeqrgdydlnavrlcfqvtvrdpagrpllltpvlshpifdnrapntaelkicr vnrnsgsclggdeifllcdkvqkedievyftgpgweargsfsqadvhrqvaivfrtppya dpslqapvrvsmqlrrpsdrelsepmefqylpd
>2ramB (B:) pyveiieqpkqrgmrfrykcegrsagsipgerstdttkthptikingytgpgtvrislvt kdpphrphphelvgkdcrdgyyeadlcpdrsihsfqnlgiqcvkkrdleqaisqriqtnn npfhvpieeqrgdydlnavrlcfqvtvrdpagrpllltpvlshpifdnrapntaelkicr vnrnsgsclggdeifllcdkvqkedievyftgpgweargsfsqadvhrqvaivfrtppya dpslqapvrvsmqlrrpsdrelsepmefqylpd