addC("1,2-dichloroethane.pdb","meta")
addC("1,3-bisphospho-D-glycerate.pdb","carb")
addC("17-alpha-hydroxyprogesterone.pdb","steroid")
addC("1-L-myo-inositol-5-phosphate.pdb","carb")
addC("2,3-bisphospho-D-glycerate.pdb","carb")
addC("2,3-diketo-L-gulonate.pdb","carb")
addC("2,4-dihydroxy-6-amino-1,3,5-triazine.pdb","nucl")
addC("2,4-dihydroxy-6-N-ethyl-amino-1,3,5-triazine.pdb","nucl")
addC("21-deoxycortisol.pdb","steroid")
addC("2-amino-2-deoxy-D-glucose.pdb","carb")
addC("2-chloro-4,6-diamino-1,3,5-triazine.pdb","nucl")
addC("2-chloro-4,6-dihydroxy-1,3,5-triazine.pdb","nucl")
addC("2-chloro-4-hydroxy-6-amino-1,3,5-triazine.pdb","nucl")
addC("2-chloroethanol.pdb","meta")
addC("2-hydroxy-2-yl-glutarate.pdb","carb")
addC("2-hydroxy-4,6-diamino-1,3,5-triazine.pdb","nucl")
addC("2-hydroxyglutarate.pdb","carb")
addC("2-hydroxyglutarate_thiamine-pyrophosphate.pdb","cofactor")
addC("2-keto-3-deoxy-D-arabino-heptulosonate-7-phosphate.pdb","carb")
addC("2-keto-3-deoxy-D-glucarate.pdb","carb")
addC("2-keto-3-deoxy-D-gluconate.pdb","carb")
addC("2-keto-L-gulono-1,4-lactone.pdb","carb")
addC("2-methyl-4-amino-5-hydroxymethyl-pyrimidine.pdb","nucl")
addC("2-methyl-4-amino-5-methandiyl-pyrimidine.pdb","nucl")
addC("2-phospho-D-glycerate.pdb","carb")
addC("2R,3S-isocitrate.pdb","meta")
addC("3-amino-isobutyrate.pdb","meta")
addC("3-dehydroquinate.pdb","meta")
addC("3-dehydroshikimate.pdb","meta")
addC("3-keto-adipate.pdb","meta")
addC("3-keto-adipyl-CoA.pdb","meta")
addC("3-keto-L-gulonate.pdb","carb")
addC("3-ketothreonate.pdb","carb")
addC("3-methyladenine.pdb","nucl")
addC("3-phospho-D-glycerate.pdb","carb")
addC("4-hydroxybutyr-4-yl_acid.pdb","meta")
addC("4-hydroxybutyric_acid_thiamine-pyrophosphate.pdb","cofactor")
addC("4-methyl-5-2-hydroxyethyl-thiazole.pdb","meta")
addC("5,6-dihydrouracil.pdb","nucl")
addC("5-amino-4-imidazolecarboxamideriboside-5-triphosphate.pdb","meta")
addC("5-amino-4-imidazolylcarboxamide.pdb","meta")
addC("5-aminoimidazol-1-yl-4-carboxylate.pdb","meta")
addC("5-aminoimidazole.pdb","meta")
addC("5-aminoimidazole-4-carboxylate.pdb","meta")
addC("5-beta-perhydrocyclopentanophenanthrene.pdb","steroid")
addC("5-bromouracil.pdb","nucl")
addC("5-enolpyruvylshikimate-3-phosphate.pdb","meta")
addC("5-hydroxymethylcytosine.pdb","nucl")
addC("5-keto-4-deoxy-D-glucarate.pdb","carb")
addC("5-methylcytosine.pdb","nucl")
addC("5-phospho-alpha-D-ribosyl-1-pyrophosphate.pdb","carb")
addC("5-phosphoribosyl-4-carboxamide-5-aminoimidazole.pdb","nucl")
addC("5-phosphoribosyl-4-carboxamide-5-formamidoimidazole.pdb","nucl")
addC("5-phosphoribosyl-4-N-succinocarboxamide-5-aminoimidazole.pdb","nucl")
addC("5-phosphoribosyl-5-aminoimidazole.pdb","nucl")
addC("5-phosphoribosyl-5-aminoimidazole-4-carboxylate.pdb","nucl")
addC("5-phosphoribosyl-glycinamide.pdb","nucl")
addC("5-phosphoribosyl-N-formylglycinamide.pdb","nucl")
addC("5-phosphoribosyl-N-formylglycinamidine.pdb","nucl")
addC("5-phosphoryl-beta-D-ribosylamine.pdb","carb")
addC("6-deoxy-alpha-D-allopyranose.pdb","carb")
addC("6-deoxy-alpha-D-altropyranose.pdb","carb")
addC("6-deoxy-alpha-D-glucopyranose.pdb","carb")
addC("6-deoxy-alpha-D-gulopyranose.pdb","carb")
addC("6-deoxy-alpha-D-idopyranose.pdb","carb")
addC("6-deoxy-alpha-D-talopyranose.pdb","carb")
addC("6-deoxy-alpha-L-talopyranose.pdb","carb")
addC("6-deoxy-beta-D-allopyranose.pdb","carb")
addC("6-deoxy-beta-D-altropyranose.pdb","carb")
addC("6-deoxy-beta-D-glucopyranose.pdb","carb")
addC("6-deoxy-beta-D-gulopyranose.pdb","carb")
addC("6-deoxy-beta-D-idopyranose.pdb","carb")
addC("6-deoxy-beta-D-talopyranose.pdb","carb")
addC("6-deoxy-D-allose.pdb","carb")
addC("6-deoxy-D-altrose.pdb","carb")
addC("6-deoxy-D-glucose.pdb","carb")
addC("6-deoxy-D-gulose.pdb","carb")
addC("6-deoxy-D-talose.pdb","carb")
addC("6-deoxy-L-talose.pdb","carb")
addC("8-azaguanine.pdb","nucl")
addC("8-oxy-caffeine.pdb","meta")
addC("acetate.pdb","meta")
addC("acetyl-CoA.pdb","meta")
addC("adenine.pdb","nucl")
addC("adenosine.pdb","nucl")
addC("ADP.pdb","nucl")
addC("aldosterone.pdb","steroid")
addC("alpha-D-allo-heptulopyranose.pdb","carb")
addC("alpha-D-allopyranose.pdb","carb")
addC("alpha-D-arabinofuranose.pdb","carb")
addC("alpha-D-arabinopyranose.pdb","carb")
addC("alpha-D-erythrofuranose.pdb","carb")
addC("alpha-D-erythro-pentulofuranose.pdb","carb")
addC("alpha-D-fructofuranose.pdb","carb")
addC("alpha-D-fucopyranose.pdb","carb")
addC("alpha-D-galactopyranose.pdb","carb")
addC("alpha-D-galacturonopyranose.pdb","carb")
addC("alpha-D-galacturonopyranose-1-phosphate.pdb","carb")
addC("alpha-D-glucopyranose.pdb","carb")
addC("alpha-D-glucuronopyranose.pdb","carb")
addC("alpha-D-glucuronopyranose-1-phosphate.pdb","carb")
addC("alpha-D-gulopyranose.pdb","carb")
addC("alpha-D-idopyranose.pdb","carb")
addC("alpha-D-lyxofuranose.pdb","carb")
addC("alpha-D-lyxopyranose.pdb","carb")
addC("alpha-D-mannopyranose.pdb","carb")
addC("alpha-D-psicopyranose.pdb","carb")
addC("alpha-D-rhamnopyranose.pdb","carb")
addC("alpha-D-ribofuranose.pdb","carb")
addC("alpha-D-ribopyranose.pdb","carb")
addC("alpha-D-sedoheptulopyranose.pdb","carb")
addC("alpha-D-tagatopyranose.pdb","carb")
addC("alpha-D-talo-heptulopyranose.pdb","carb")
addC("alpha-D-talopyranose.pdb","carb")
addC("alpha-D-threofuranose.pdb","carb")
addC("alpha-D-xylofuranose.pdb","carb")
addC("alpha-D-xylopyranose.pdb","carb")
addC("alpha-D-xylopyranose-1-phosphate.pdb","carb")
addC("alpha-ketoglutaramate.pdb","carb")
addC("alpha-ketoglutarate.pdb","carb")
addC("alpha-L-arabinopyranose.pdb","carb")
addC("alpha-L-erythrofuranose.pdb","carb")
addC("alpha-L-fucopyranose.pdb","carb")
addC("alpha-L-galactopyranose.pdb","carb")
addC("alpha-L-lyxopyranose.pdb","carb")
addC("alpha-L-rhamnopyranose.pdb","carb")
addC("alpha-L-ribopyranose.pdb","carb")
addC("alpha-L-sorbopyranose.pdb","carb")
addC("alpha-L-threofuranose.pdb","carb")
addC("alpha-L-xylopyranose.pdb","carb")
addC("aminoacid_D_backbone.pdb","amino")
addC("aminoacid_L_backbone.pdb","amino")
addC("AMP.pdb","nucl")
addC("anthranilate.pdb","meta")
addC("arachidate.pdb","lipid")
addC("arachidonate.pdb","lipid")
addC("ATP.pdb","nucl")
addC("atrazine.pdb","meta")
addC("barbiturate.pdb","meta")
addC("behenate.pdb","lipid")
addC("beta-D-allopyranose.pdb","carb")
addC("beta-D-altro-3-heptulopyranose.pdb","carb")
addC("beta-D-arabinofuranose.pdb","carb")
addC("beta-D-arabinopyranose.pdb","carb")
addC("beta-D-erythrofuranose.pdb","carb")
addC("beta-D-fructofuranose.pdb","carb")
addC("beta-D-fructofuranose-1,6-bisphosphate.pdb","carb")
addC("beta-D-fructofuranose-6-phosphate.pdb","carb")
addC("beta-D-fructopyranose.pdb","carb")
addC("beta-D-fucopyranose.pdb","carb")
addC("beta-D-galactopyranose.pdb","carb")
addC("beta-D-glucopyranose.pdb","carb")
addC("beta-D-glucopyranose-1,6-bisphosphate.pdb","carb")
addC("beta-D-glucopyranose-1-phosphate.pdb","carb")
addC("beta-D-glucopyranose-6-phosphate.pdb","carb")
addC("beta-D-gulopyranose.pdb","carb")
addC("beta-D-idopyranose.pdb","carb")
addC("beta-D-lyxofuranose.pdb","carb")
addC("beta-D-lyxopyranose.pdb","carb")
addC("beta-D-manno-heptulopyranose.pdb","carb")
addC("beta-D-mannopyranose.pdb","carb")
addC("beta-D-rhamnopyranose.pdb","carb")
addC("beta-D-ribofuranose.pdb","carb")
addC("beta-D-ribopyranose.pdb","carb")
addC("beta-D-tagatopyranose.pdb","carb")
addC("beta-D-talopyranose.pdb","carb")
addC("beta-D-threofuranose.pdb","carb")
addC("beta-D-threo-pentulofuranose.pdb","carb")
addC("beta-D-xylopyranose.pdb","carb")
addC("beta-estradiol.pdb","steroid")
addC("beta-L-arabinopyranose.pdb","carb")
addC("beta-L-arabinopyranose-1-phosphate.pdb","carb")
addC("beta-L-erythrofuranose.pdb","carb")
addC("beta-L-lyxopyranose.pdb","carb")
addC("beta-L-ribopyranose.pdb","carb")
addC("beta-L-threofuranose.pdb","carb")
addC("beta-L-xylopyranose.pdb","carb")
addC("beta-mercaptoethylamine.pdb","meta")
addC("biuret.pdb","meta")
addC("caffeine.pdb","meta")
addC("cAMP.pdb","nucl")
addC("catechol.pdb","meta")
addC("CDP.pdb","nucl")
addC("ceramide.pdb","lipid")
addC("chloroacetaldehyde.pdb","meta")
addC("chloroacetic_acid.pdb","meta")
addC("choline.pdb","meta")
addC("chorismate.pdb","meta")
addC("cis-aconitate.pdb","meta")
addC("citrate.pdb","meta")
addC("CMP.pdb","nucl")
addC("coenzymeA.pdb","cofactor")
addC("corticosterone.pdb","steroid")
addC("cortisol.pdb","steroid")
addC("CTP.pdb","nucl")
addC("cyanuric_acid.pdb","meta")
addC("cytidine.pdb","nucl")
addC("cytosine.pdb","nucl")
addC("D-3-allohydroxyproline.pdb","amino")
addC("D3HI_HUMAN.pdb","peptide")
addC("D-3-hydroxyproline.pdb","amino")
addC("D-4-allohydroxyproline.pdb","amino")
addC("D-4-hydroxyproline.pdb","amino")
addC("dADP.pdb","nucl")
addC("D-alanine.pdb","amino")
addC("D-allo-heptulose.pdb","carb")
addC("D-allose.pdb","carb")
addC("D-altrose.pdb","carb")
addC("dAMP.pdb","nucl")
addC("D-arabinose.pdb","carb")
addC("D-arginine.pdb","amino")
addC("D-asparagine.pdb","amino")
addC("D-aspartate.pdb","amino")
addC("dATP.pdb","nucl")
addC("dCDP.pdb","nucl")
addC("dCMP.pdb","nucl")
addC("dCTP.pdb","nucl")
addC("D-cysteine.pdb","amino")
addC("deethylatrazine.pdb","meta")
addC("deoxyadenosine.pdb","nucl")
addC("deoxycytidine.pdb","nucl")
addC("deoxyguanosine.pdb","nucl")
addC("deoxyinosine.pdb","nucl")
addC("deoxyuridine.pdb","nucl")
addC("deoxyxanthosine.pdb","nucl")
addC("D-erythrose.pdb","carb")
addC("D-erythrulose.pdb","carb")
addC("D-fructose.pdb","carb")
addC("D-fucose.pdb","carb")
addC("D-galactose.pdb","carb")
addC("dGDP.pdb","nucl")
addC("D-glucarate.pdb","carb")
addC("D-glucitol.pdb","carb")
addC("D-gluconate.pdb","carb")
addC("D-glucose.pdb","carb")
addC("D-glucuronate.pdb","carb")
addC("D-glucurono-3,6-lactone.pdb","carb")
addC("D-glutamate.pdb","amino")
addC("D-glutamine.pdb","amino")
addC("D-glyceraldehyde.pdb","carb")
addC("D-glyceraldehyde-3-phosphate.pdb","carb")
addC("D-glycerate.pdb","carb")
addC("D-glycero-alpha-D-gluco-heptopyranose.pdb","carb")
addC("D-glycero-alpha-D-manno-heptopyranose.pdb","carb")
addC("D-glycero-beta-D-manno-heptopyranose.pdb","carb")
addC("D-glycero-D-galacto-heptose.pdb","carb")
addC("D-glycero-D-gluco-heptose.pdb","carb")
addC("D-glycero-D-manno-heptose.pdb","carb")
addC("dGMP.pdb","nucl")
addC("dGTP.pdb","nucl")
addC("D-gulose.pdb","carb")
addC("D-histidine.pdb","amino")
addC("D-idose.pdb","carb")
addC("dIDP.pdb","nucl")
addC("dihydro-thymine.pdb","cofactor")
addC("dihydroxyacetone.pdb","carb")
addC("dihydroxyacetone_phosphate.pdb","carb")
addC("dIMP.pdb","nucl")
addC("D-isoleucine.pdb","amino")
addC("dITP.pdb","nucl")
addC("D-leucine.pdb","amino")
addC("D-lysine.pdb","amino")
addC("D-lyxose.pdb","carb")
addC("D-manno-heptulose.pdb","carb")
addC("D-mannose.pdb","carb")
addC("D-methionine.pdb","amino")
addC("D-phenylalanine.pdb","amino")
addC("D-proline.pdb","amino")
addC("D-psicose.pdb","carb")
addC("D-ribose.pdb","carb")
addC("D-ribulose.pdb","carb")
addC("D-serine.pdb","amino")
addC("D-sorbose.pdb","carb")
addC("D-tagatose.pdb","carb")
addC("D-talo-heptulose.pdb","carb")
addC("D-talose.pdb","carb")
addC("D-tartarate.pdb","meta")
addC("D-threonine.pdb","amino")
addC("D-threose.pdb","carb")
addC("D-tryptophan.pdb","amino")
addC("D-tyrosine.pdb","amino")
addC("dUDP.pdb","nucl")
addC("dUMP.pdb","nucl")
addC("dUTP.pdb","nucl")
addC("D-valine.pdb","amino")
addC("dXDP.pdb","nucl")
addC("dXMP.pdb","nucl")
addC("dXTP.pdb","nucl")
addC("D-xylose.pdb","carb")
addC("D-xylulose.pdb","carb")
addC("EOSI_HUMAN.pdb","peptide")
addC("estrone.pdb","steroid")
addC("ethylamine.pdb","meta")
addC("FAD.pdb","cofactor")
addC("formate.pdb","meta")
addC("formyl-CoA.pdb","meta")
addC("fumarate.pdb","meta")
addC("GDP.pdb","nucl")
addC("glycerol.pdb","carb")
addC("glycine.pdb","amino")
addC("glycolate.pdb","carb")
addC("glyoxylate.pdb","carb")
addC("glyphosate.pdb","carb")
addC("GMP.pdb","nucl")
addC("GRWM_HUMAN.pdb","peptide")
addC("GTP.pdb","nucl")
addC("guanine.pdb","nucl")
addC("guanosine.pdb","nucl")
addC("H2O.pdb","meta")
addC("hydroxyatrazine.pdb","meta")
addC("hypoxanthine.pdb","nucl")
addC("IDP.pdb","nucl")
addC("imidazole.pdb","meta")
addC("IMP.pdb","nucl")
addC("inosine.pdb","nucl")
addC("isopropylammelide.pdb","meta")
addC("itaconate.pdb","meta")
addC("ITP.pdb","nucl")
addC("L-3-allohydroxyproline.pdb","amino")
addC("L-3-hydroxyproline.pdb","amino")
addC("L-4-allohydroxyproline.pdb","amino")
addC("L-4-hydroxyproline.pdb","amino")
addC("L-alanine.pdb","amino")
addC("L-arabinose.pdb","carb")
addC("L-arabitol.pdb","carb")
addC("L-arginine.pdb","amino")
addC("L-ascorbate.pdb","meta")
addC("L-asparagine.pdb","amino")
addC("L-aspartate.pdb","amino")
addC("laurate.pdb","lipid")
addC("L-cysteine.pdb","amino")
addC("L-dehydroascorbate.pdb","meta")
addC("L-erythroascorbate.pdb","meta")
addC("L-erythrose.pdb","carb")
addC("L-fucose.pdb","carb")
addC("L-glucarate.pdb","carb")
addC("L-glutamate.pdb","amino")
addC("L-glutamine.pdb","amino")
addC("L-glyceraldehyde.pdb","carb")
addC("L-glycerate.pdb","carb")
addC("L-glycero-D-manno-heptose.pdb","carb")
addC("L-glycerol-3-phosphate.pdb","carb")
addC("L-gulitol.pdb","carb")
addC("L-gulonate.pdb","carb")
addC("L-gulono-1,4-lactone.pdb","carb")
addC("L-gulose.pdb","carb")
addC("L-histidine.pdb","amino")
addC("lignocerate.pdb","lipid")
addC("linoleate.pdb","lipid")
addC("linolenate.pdb","lipid")
addC("L-isoleucine.pdb","amino")
addC("L-leucine.pdb","amino")
addC("L-lysine.pdb","amino")
addC("L-lyxonate.pdb","carb")
addC("L-malate.pdb","carb")
addC("L-methionine.pdb","amino")
addC("L-phenylalanine.pdb","amino")
addC("L-proline.pdb","amino")
addC("L-rhamnose.pdb","carb")
addC("L-ribulose.pdb","carb")
addC("L-ribulose-5-phosphate.pdb","carb")
addC("L-serine.pdb","amino")
addC("L-sorbose.pdb","carb")
addC("L-tartarate.pdb","meta")
addC("L-threonate.pdb","carb")
addC("L-threonine.pdb","amino")
addC("L-threose.pdb","carb")
addC("L-tryptophan.pdb","amino")
addC("L-tyrosine.pdb","amino")
addC("L-valine.pdb","amino")
addC("L-xylonate.pdb","carb")
addC("L-xylulose-5-phosphate.pdb","carb")
addC("malonate.pdb","meta")
addC("meso-tartarate.pdb","meta")
addC("muconate.pdb","meta")
addC("myo-inositol.pdb","carb")
addC("myo-inosose-2.pdb","carb")
addC("myristate.pdb","lipid")
addC("N10-formyl-5,6,7,8-tetrahydrofolate.pdb","cofactor")
addC("N5,N10-methenyl-5,6,7,8-tetrahydrofolate.pdb","cofactor")
addC("N5,N10-methylene-5,6,7,8-tetrahydrofolate.pdb","cofactor")
addC("N5-formimino-5,6,7,8-tetrahydrofolate.pdb","cofactor")
addC("N5-formyl-5,6,7,8-tetrahydrofolate.pdb","cofactor")
addC("N5-methyl-5,6,7,8-tetrahydrofolate.pdb","cofactor")
addC("N-acetyl-D-glucosamine.pdb","carb")
addC("N-acetyl-D-glucosamine-1-phosphate.pdb","carb")
addC("N-acetyl-D-glucosamine-1-yl.pdb","carb")
addC("N-acetyl-D-mannosamine.pdb","carb")
addC("N-acetyl-D-mannosamine-6-phosphate.pdb","carb")
addC("N-acetyl-neuraminate.pdb","carb")
addC("N-acetyl-neuraminate-9-phosphate.pdb","carb")
addC("NAD+.pdb","cofactor")
addC("NADH.pdb","cofactor")
addC("NADP+.pdb","cofactor")
addC("NADPH.pdb","cofactor")
addC("N-methyl-acetamide.pdb","meta")
addC("oleate.pdb","lipid")
addC("orotate.pdb","nucl")
addC("orotidine-5-phosphate.pdb","nucl")
addC("oxalate.pdb","meta")
addC("oxaloacetate.pdb","meta")
addC("oxalosuccinate.pdb","meta")
addC("oxalyl.pdb","meta")
addC("oxalyl-CoA.pdb","meta")
addC("palmitate.pdb","lipid")
addC("palmitoleate.pdb","lipid")
addC("PBP_HUMAN.pdb","peptide")
addC("peptide_backbone.pdb","amino")
addC("peptide_end.pdb","amino")
addC("peptide_start.pdb","amino")
addC("perhydrocyclopentanophenanthrene.pdb","steroid")
addC("phosphoenolpyruvate.pdb","meta")
addC("Pi.pdb","meta")
addC("prephenate.pdb","meta")
addC("progesterone.pdb","steroid")
addC("purine.pdb","nucl")
addC("pyrimidine.pdb","nucl")
addC("pyrimidinyl.pdb","nucl")
addC("pyruvate.pdb","meta")
addC("quinate.pdb","meta")
addC("riboflavin.pdb","cofactor")
addC("ribosylthymine.pdb","nucl")
addC("R-pantothenate.pdb","cofactor")
addC("rTDP.pdb","nucl")
addC("rTMP.pdb","nucl")
addC("rTTP.pdb","nucl")
addC("sarcosine.pdb","amino")
addC("sedoheptulose.pdb","carb")
addC("shikimate.pdb","meta")
addC("shikimate-3-phosphate.pdb","meta")
addC("sphingomyelin.pdb","lipid")
addC("sphingosine.pdb","lipid")
addC("stearate.pdb","lipid")
addC("stearyl-linolenyl-phosphatidate.pdb","lipid")
addC("stearyl-oleyl-phosphatidylcholine.pdb","lipid")
addC("succinyl-CoA.pdb","meta")
addC("TDP.pdb","nucl")
addC("testosterone.pdb","steroid")
addC("tetrahydrofolate.pdb","cofactor")
addC("theobromine.pdb","nucl")
addC("theophylline.pdb","nucl")
addC("thiamine.pdb","cofactor")
addC("thiamine-pyrophosphate.pdb","cofactor")
addC("thymidine.pdb","nucl")
addC("thymine.pdb","nucl")
addC("TMP.pdb","nucl")
addC("TTP.pdb","nucl")
addC("TUFT_HUMAN.pdb","peptide")
addC("UDP.pdb","nucl")
addC("UDP-alpha-D-galacturonopyranose.pdb","carb_nucl")
addC("UDP-alpha-D-glucuronopyranose.pdb","carb_nucl")
addC("UDP-alpha-D-xylopyranose.pdb","carb_nucl")
addC("UDP-beta-L-arabinopyranose.pdb","carb_nucl")
addC("UDP-N-acetyl-alpha-D-glucosaminopyranose.pdb","carb_nucl")
addC("UMP.pdb","nucl")
addC("UMP-nonresonant-terminal-oxygen.pdb","nucl")
addC("uracil.pdb","nucl")
addC("uracyl.pdb","nucl")
addC("urea.pdb","meta")
addC("uric_acid.pdb","nucl")
addC("uridine.pdb","nucl")
addC("UTP.pdb","nucl")
addC("xanthine.pdb","nucl")
addC("xanthosine.pdb","nucl")
addC("XDP.pdb","nucl")
addC("XMP.pdb","nucl")
addC("XTP.pdb","nucl")
addC("xylitol.pdb","carb")