Cytochrome BC1 molecule
cAMP-dependent protein kinase molecule
Heterotrimeric G protein molecule
Cytochrome P450 and erythromycin
Cytochrome b6f complex, molecular model
Respiratory complex I
Oxidoreductase enzyme complex
Transcription factor bound to DNA
Proteinase inhibitor molecule
Chitinase enzyme molecule
Calcium-binding protein molecule
Beta-cyclodextrin bound to AMPK beta subunit, illustration
Transthyretin protein, illustration
Bile salt hydrolase, molecular model
Transcription activation of IFN-beta gene
Serotonin N-acetyltransferase complex
Human electron transfer flavoprotein
Mutant insulin, molecular model
Growth and differentiation factor 15 molecule, illustration
Hydroxysteroid dehydrogenase molecule
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
Importin heterodimer protein
Uricase enzyme, molecular model
Carbonic anhydrase molecule
Ubiquitin molecule
Glycosylation enzyme molecule
Nuclear import complex molecule
Multidrug transporter molecule
Wilms tumor suppressor bound to DNA
SelB elongation factor bound to RNA
Eye lens protein molecule
Toll-like receptor 3 and RNA
Bacterial nanocompartment
Human pathogen recognition molecule
P-glycoprotein 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
tRNA molecule
Alcohol dehydrogenase molecule
Clathrin lattice, molecular model
Myoglobin molecule
Heterotrimeric G protein complex molecule
Insulin-like growth factor 1 molecule
Shrew eye lens protein molecule
Rabbit eye lens protein molecule
Dienoyl-coenzyme A isomerase molecule
RiVax ricin vaccine
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
NADQ complexed with DNA, molecular model
Human brain aldehyde dehydrogenase, molecular model
Phosphoglycolate phosphatase, illustration
Glucose molecule, illustration
MscS ion channel protein structure
FAD (flavin adenine dinucleotide) molecule
Vitamin B2 (riboflavin) organic compound molecule
Hexokinase sugar enzyme
Citrate acid cycle enzyme
Elongation factors Tu and Ts
DNA gyrase protein segment
PolyA polymerase, molecular model
Manganese catalase enzyme molecule
Galactoside acetyltransferase molecule
Cell adhesion protein molecule
Lysozyme complexed with antibody
DNA transcription, molecular model
Citrate synthase molecule
Nerve growth factor bound to receptor
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
Methionine aminopeptidase molecule
Importin alpha 1 protein
Cytochrome P450 and fluconazole
Succinyl-CoA synthetase enzyme
LAC repressor molecule
Nucleosome, illustration
MDM2 and tumour suppressor p53, illustration
Glycogen phosphorylase molecule
Human catalase, molecular model
Ricin molecule
Glutamine synthetase enzyme
RNA duplex molecule
H-Ras p21 oncogene protein
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
Anthrax oedema factor molecule
Crystal structure of human transthyretin, illustration
Catalase, molecular model
HIV enzyme protein, molecular model
Adenovirus fibre shaft protein
Argonaute protein molecule