1 6QR (2~{S},3~{R},4~{R})-4-(1~{H}-indol-3-ylsulfanyl)-3-methyl-2-[(2~{S},3~{S})-3-oxidanyl-1-oxidanylidene-butan-2-yl]-3,4-dihydro-2~{H}-pyrrole-5-carboxylic acid 1.000 2 E0Y (3s,5r)-5-[(2r,3r)-1,3-dihydroxybutan-2-yl]-3-({(3r)-1-[(1e)-ethanimidoyl]pyrrolidin-3-yl}sulfanyl)-L-proline 0.714 3 DWZ (2s,3r,4s)-4-{[(3s,5s)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl}-2-[(2s,3r)-3-hydroxy-1-oxobutan-2-yl]-3-methyl-3,4-dihydro-2h-pyrrole-5-carboxylic acid 0.700 4 KE1 Meropenem, bound form 0.700 5 MER (4r,5s)-3-{[(3s,5s)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl}-5-[(2s,3r)-3-hydroxy-1-oxobutan-2-yl]-4-methyl-4,5-D ihydro-1h-pyrrole-2-carboxylic acid 0.700 6 MXR (2s,3r,4s)-4-{[(3s,5r)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl}-2-[(2s,3r)-3-hydroxy-1-oxobutan-2-yl]-3-methyl-3,4-dihydro-2h-pyrrole-5-carboxylic acid 0.700 7 O2F (2s,3r,4r)-4-[(3s,5s)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl-3-methyl-2-[(2s,3r)-3-oxidanyl-1-oxidanylidene-butan-2-yl]-3,4-dihydro-2h-pyrrole-5-carboxylic acid 0.700