Dihydrofolate reductase and folic acid
Dihydrofolate reductase and methotrexate
DNA clamp and DNA, molecular model
DNA polymerase bound with DNA
Galactoside acetyltransferase molecule
Fatty acid synthase in complex with NADP+
PolyA polymerase and RNA
Pyridoxal phosphate molecule
DNA clamp, molecular model
Multidrug transporter molecule
Methyl-coenzyme M reductase
Oxoguanine glycosylase complex
Epidermal growth factor and receptor complex, illustration
PolyA polymerase, molecular model
Lysozyme complexed with antibody
RNA exosome complex, molecular model
Glycosylation enzyme molecule
Human RNA exosome complex, molecular mode
Enzyme catalysing DNA recombination
Hammerhead ribozyme molecule
Glycogen phosphorylase molecule
Acetyltransferase complex
Succinyl-CoA synthetase enzyme
Hexokinase enzyme binding to glucose, illustration
Citrate synthase molecule
Dihydrofolate reductase complex
Heat shock protein 90 chaperone complex
Fat mass and obesity-associated protein
TATA box-binding protein complex
DNA-RNA hybrid molecule
Retinal dehydrogenase molecule
GTP cyclohydrolase I molecule
Serotonin N-acetyltransferase complex
PhaB reductase complex, molecular model
Importin heterodimer protein
Nuclear import complex molecule
Glycogen phosphorylase active site
HIV enzyme protein, molecular model
RNA Polymerase II, illustration
AlkB in complex with 1-methyl adenine
Aldehyde dehydrogenase enzyme structure
Ovarian tumour complexed with ubiquitin, molecular model
Carbon monoxide bound to horseradish peroxidase, illustration
Palladium bound to cellulase active site, illustration
Transaldolase, illustation
Plant serotonin N-acetyltransferase complex, illustration
Anthrax bacillus glms ribozyme
RNA duplex molecule
Polynucleotide phosphorylase molecule
GABA-B receptor activation, molecular model
Active membrane transport, illustration
Folic acid, molecular model
DNA polymerase III holoenzyme
RecBCD enzyme complex unwinding DNA, illustration
Methyltransferase complexed with DNA
Haemoglobin subunit, illustration
Protein folding, illustration
RuBisCO-RuBP complex, illustration
Pit-1 transcription factor bound to DNA
Foot-and-mouth disease virus drug complex
Hexokinase and glucose complex
Tryptophan hydroxylase molecule
Blood coagulation factor Xa molecule
Kinase complexed with quercetin
Antibody Fab complex
H-NOX complexed to NO
BRAF-MEK complex
Z-RNA editing enzyme complex
Isoprene synthase molecule complex
Adenosine deaminase RNA complex
Sepiapterin reductase molecule
Bacteriophage T7 capsid, molecular model
Lac-repressor, illustration
IgG Fab complex
Murine tRNA-guanine transglycosylase, molecular model
Heterotrimeric G protein complex molecule
SV40 antigen and tumor suppressor
RNA polymerase II and TFIIB
G protein complex
Hepatitis C polymerase enzyme molecule
Enzyme reaction models, illustration
Cyclodextrin glycosyltransferase
V-ATPase molecule, molecular model
Myoglobin molecule
Haemophore protein, illustration
Histone methylation, molecular model
Type I topoisomerase bound to DNA
Lead atoms complexed with ALAD enzyme, illustration
Hepatitis C virus NS5A domain, molecular model
Insulin-degrading enzyme and inhibitor
Rhodopsin molecule
HIV reverse transcription enzyme, illustration
Glutathione transferase complex, molecular model
Methyltransferase-tRNA complex, molecular model
Human ARTD2 complexed with DNA, illustration
Human dihydrofolate reductase
GABA B receptor binding to baclofen, molecular model
Vitamin B9, molecular model
Urea channel molecule
Tumour suppressor p53 degraded by proteasome, illustration
Hexokinase sugar enzyme
Citrate acid cycle enzyme
Pyruvate dehydrogenase complex enzyme