Chains and heterogens:
PDB Chain Sequences:
>4bx3A (A:) gmarcerlrgaalrdvlgqaqgvlfdcdgvlwngerivpgapellqrlaragkntlfvsn nsrrarpelalrfarlgfaglraeqlfssalcaarllrqrlpgppdasgavfvlggeglr aelraaglrlagdpgedprvravlvgydeqfsfsrlteacahlrdpdcllvatdrdpwhp lsdgsrtpgtgslaaavetasgrqalvvgkpspymfqcitedfsvdpartlmvgdrletd ilfghrcgmttvltltgvssleeaqayltagqrdlvphyyvesiadlmegled
>4bx3A (A:) gmarcerlrgaalrdvlgqaqgvlfdcdgvlwngerivpgapellqrlaragkntlfvsn nsrrarpelalrfarlgfaglraeqlfssalcaarllrqrlpgppdasgavfvlggeglr aelraaglrlagdpgedprvravlvgydeqfsfsrlteacahlrdpdcllvatdrdpwhp lsdgsrtpgtgslaaavetasgrqalvvgkpspymfqcitedfsvdpartlmvgdrletd ilfghrcgmttvltltgvssleeaqayltagqrdlvphyyvesiadlmegl
>4bx3B (B:) gmarcerlrgaalrdvlgqaqgvlfdcdgvlwngerivpgapellqrlaragkntlfvsn nsrrarpelalrfarlgfaglraeqlfssalcaarllrqrlpgppdasgavfvlggeglr aelraaglrlagdpgedprvravlvgydeqfsfsrlteacahlrdpdcllvatdrdpwhp lsdgsrtpgtgslaaavetasgrqalvvgkpspymfqcitedfsvdpartlmvgdrletd ilfghrcgmttvltltgvssleeaqayltagqrdlvphyyvesiadlmegled
>4bx3B (B:) marcerlrgaalrdvlgqaqgvlfdcdgvlwngerivpgapellqrlaragkntlfvsnn srrarpelalrfarlgfaglraeqlfssalcaarllrqrlpgppdasgavfvlggeglra elraaglrlagdpgedprvravlvgydeqfsfsrlteacahlrdpdcllvatdrdpwhpl sdgsrtpgtgslaaavetasgrqalvvgkpspymfqcitedfsvdpartlmvgdrletdi lfghrcgmttvltltgvssleeaqayltagqrdlvphyyvesiadlmegle