R01 ATOM C1G C1 O2 C4A C3A C2A C1A C2B C3B C4B ATOM C1C C5B C6B N1D C1F C1E C2E C3E C6A C5A ATOM C2G C3G C4G C1B BR27 C5G C6G CONNECT - C1G C1 O2 + CONNECT C1G C2G C3G C4G BR27 CONNECT C1G C6G C5G C4G CONNECT C1 C4A C3A C2A C1A C6A C5A C4A CONNECT C1A C1B C2B C3B C4B C1C N1D C1F CONNECT C4B C5B C6B C1B CONNECT N1D C1E C2E C3E