H-Ras p21 oncogene protein
MDM2 and tumour suppressor p53, illustration
Sepiapterin reductase molecule
Wilms tumor suppressor bound to DNA
GTP cyclohydrolase I molecule
PTPS synthase molecule
Tumour suppressor p53 degraded by proteasome, illustration
P-glycoprotein molecule
Sirtuin enzyme and p53, artwork
Nucleosome, illustration
Ubiquitinin molecule, molecular model
Epidermal growth factor molecule
Insect antifreeze protein
Tetraubiquitin protein molecule
HGPRTase molecule
Epidermal growth factor and receptor
Calcium pumping ATPase muscle enzyme
Fish antifreeze protein
Endonuclease and DNA, molecular model
Shrew eye lens protein molecule
Importin heterodimer protein
Adenovirus fibre shaft protein
Uricase enzyme, molecular model
Carbonic anhydrase molecule
Argonaute protein molecule
Ubiquitin molecule
Glycosylation enzyme molecule
Calcium-binding protein molecule
Nuclear import complex molecule
Multidrug transporter molecule
SelB elongation factor bound to RNA
Eye lens protein molecule
Rabbit eye lens protein molecule
Bacterial nanocompartment
Human pathogen recognition molecule
cAMP-dependent protein kinase molecule
Urea channel molecule
ATP-binding cassette transporter
Human lysine-specific demethylase
UV-damaged DNA-binding protein and DNA
Guanine-responsive riboswitch
Malignant brain-tumor-like protein
Alcohol dehydrogenase molecule
Glycogen phosphorylase molecule
Human catalase, molecular model
Glutamine synthetase enzyme
RNA duplex molecule
Heat shock protein 90 chaperone complex
Chloride ion channel, molecular model
Nucleoplasmin molecule
Small heat shock protein
Photosystem I antenna complex
Photosystem I, molecular model
Myoglobin molecule
Importin alpha 1 protein
Exportin complexed with pre-microRNA
Tumour suppressor protein molecular model
Cytochrome P450 and erythromycin
Hexokinase sugar enzyme
Citrate acid cycle enzyme
DNA gyrase protein segment
Proteinase inhibitor molecule
PolyA polymerase, molecular model
Chitinase enzyme molecule
Manganese catalase enzyme molecule
Galactoside acetyltransferase molecule
Cell adhesion protein molecule
Lysozyme complexed with antibody
Hammerhead ribozyme molecule
DNA transcription, molecular model
Citrate synthase molecule
Scavenger mRNA-decapping enzyme
Simian virus SV40 large T antigen
Bioluminescent enzyme molecule
Transthyretin blood protein
Haemoglobin, molecular model
Growth factor receptor molecule
Integrin transmembrane domain
Lysozyme molecule
Family 84 glycoside hydrolase molecule
DNA and MECP2 complex, molecular model
Zinc transporter Yiip molecule
mRNA capping apparatus
DNA repair enzyme, molecular model
Iron-regulatory protein bound to RNA
Transcription factor bound to DNA
Methionine aminopeptidase molecule
Human haemoglobin molecule
Antibody fragment-lysozyme complex
Cyclin-dependent kinase inhibitor complex
Tumour suppressor protein and DNA
NpmA methyltransferase
Signal recognition particle RNA molecule
Transcription factor complexed with DNA
Max transcription factor-DNA complex