Chitinase enzyme molecule
Chymotrypsin digestive enzyme molecule
Proteinase inhibitor molecule
Hexokinase sugar enzyme
Citrate acid cycle enzyme
Manganese catalase enzyme molecule
Uricase enzyme, molecular model
Scavenger mRNA-decapping enzyme
Bioluminescent enzyme molecule
Glycosylation enzyme molecule
DNA repair enzyme, molecular model
Cytochrome P450 and erythromycin
Amylase, molecular model
HIV enzyme protein, molecular model
Pyruvate dehydrogenase complex enzyme
Glutamine synthetase enzyme
DNA gyrase protein segment
PolyA polymerase, molecular model
HGPRTase molecule
Galactoside acetyltransferase molecule
Lysozyme complexed with antibody
DNA transcription, molecular model
Citrate synthase molecule
Simian virus SV40 large T antigen
Carbonic anhydrase molecule
Lysozyme molecule
Family 84 glycoside hydrolase molecule
DNA and MECP2 complex, molecular model
mRNA capping apparatus
Iron-regulatory protein bound to RNA
Human lysine-specific demethylase
Methionine aminopeptidase molecule
Alcohol dehydrogenase molecule
Calcium pumping ATPase muscle enzyme
Hydroxysteroid dehydrogenase molecule
Antibiotic resistance enzyme molecule
Dynamin enzyme, molecular model
Phosphofructokinase bacterial enzyme
ATP-dependent protease molecule
RNA exosome complex, molecular model
Src protein molecule
RNA interference molecules
Ribonuclease A molecule
Human RNA exosome complex, molecular mode
Amylase enzyme
Rhomboid protease enzyme
Glycogen phosphorylase molecule
Human catalase, molecular model
Antibody fragment-lysozyme complex
Cyclin-dependent kinase inhibitor complex
Calcium-binding protein molecule
Cytochrome BC1 molecule
Hammerhead ribozyme molecule
NpmA methyltransferase
Elongation factors Tu and Ts
Bovine coronavirus enzyme
Epidermal growth factor molecule
Insect antifreeze protein
Tetraubiquitin protein molecule
Epidermal growth factor and receptor
Fish antifreeze protein
Cell adhesion protein molecule
Endonuclease and DNA, molecular model
Importin heterodimer protein
Ubiquitin molecule
Nuclear import complex molecule
Transthyretin blood protein
Multidrug transporter molecule
Haemoglobin, molecular model
Growth factor receptor molecule
Integrin transmembrane domain
Wilms tumor suppressor bound to DNA
SelB elongation factor bound to RNA
Eye lens protein molecule
Bacterial nanocompartment
Human pathogen recognition molecule
P-glycoprotein molecule
Zinc transporter Yiip molecule
cAMP-dependent protein kinase molecule
Urea channel molecule
ATP-binding cassette transporter
Transcription factor bound to DNA
UV-damaged DNA-binding protein and DNA
Guanine-responsive riboswitch
Malignant brain-tumor-like protein
Catalase, molecular model
Enzyme and quinazoline drug
NAD-dependent DNA ligase molecule
Isocitrate dehydrogenase kinase
Shrew eye lens protein molecule
Rabbit eye lens protein molecule
Sirtuin enzyme and p53, artwork
Tumour suppressor p53 degraded by proteasome, illustration
Yeast enzyme, molecular model
Oxidoreductase enzyme complex
Bacterial protease molecule
PolyA polymerase and RNA
Transthyretin protein, illustration
Insulin-like growth factor 1 molecule
Beta-2 adrenergic receptor molecule
RiVax ricin vaccine
D-amino acid oxidase enzyme
Human interferon alpha molecule
Insulin-like growth 1 factor molecule
Human growth hormone molecule
Amyloid beta protein molecule
Dengue virus surface protein molecule
Endoplasmic reticulum chaperone protein
Nucleosome, illustration
MDM2 and tumour suppressor p53, illustration
Human haemoglobin molecule
RNA duplex molecule
H-Ras p21 oncogene protein
Heat shock protein 90 chaperone complex