Integrin transmembrane domain
Beta-2 adrenergic receptor molecule
Cell adhesion protein molecule
Growth factor receptor molecule
Zinc transporter Yiip molecule
FecA transmembrane channel
Epidermal growth factor and receptor
Chloride ion channel, molecular model
Nerve growth factor bound to receptor
Sodium proton antiporter molecule
Insulin receptor, molecular model
ATP-binding cassette transporter
Dispatched-1 protein, illustration
Cell membrane with receptors and ion channels, illustration
Hexokinase sugar enzyme
Citrate acid cycle enzyme
Epidermal growth factor molecule
DNA gyrase protein segment
Insect antifreeze protein
Proteinase inhibitor molecule
Tetraubiquitin protein molecule
PolyA polymerase, molecular model
HGPRTase molecule
Chitinase enzyme molecule
Calcium pumping ATPase muscle enzyme
Manganese catalase enzyme molecule
Fish antifreeze protein
Galactoside acetyltransferase molecule
Endonuclease and DNA, molecular model
Lysozyme complexed with antibody
DNA transcription, molecular model
Citrate synthase molecule
Shrew eye lens protein molecule
Importin heterodimer protein
Uricase enzyme, molecular model
Scavenger mRNA-decapping enzyme
Simian virus SV40 large T antigen
Carbonic anhydrase molecule
Ubiquitin molecule
Glycosylation enzyme molecule
Calcium-binding protein molecule
Nuclear import complex molecule
Bioluminescent enzyme molecule
Transthyretin blood protein
Multidrug transporter molecule
Haemoglobin, molecular model
Lysozyme molecule
Wilms tumor suppressor bound to DNA
SelB elongation factor bound to RNA
Eye lens protein molecule
Rabbit eye lens protein molecule
Family 84 glycoside hydrolase molecule
DNA and MECP2 complex, molecular model
Bacterial nanocompartment
Human pathogen recognition molecule
P-glycoprotein molecule
mRNA capping apparatus
DNA repair enzyme, molecular model
Iron-regulatory protein bound to RNA
cAMP-dependent protein kinase molecule
Urea channel molecule
Transcription factor bound to DNA
Human lysine-specific demethylase
UV-damaged DNA-binding protein and DNA
Guanine-responsive riboswitch
Malignant brain-tumor-like protein
Methionine aminopeptidase molecule
Alcohol dehydrogenase molecule
Oestrogen related receptor-DNA complex
Epidermal growth factor and receptor complex, illustration
Cholesterol binding to G-protein coupled receptor, illustration
Human RNA exosome complex, molecular mode
Pyruvate dehydrogenase complex enzyme
ATP-dependent protease molecule
Cytochrome P450 and erythromycin
RNA exosome complex, molecular model
Src protein molecule
RNA interference molecules
Ribonuclease A molecule
Integrin cytoplasmic domain
Potassium ion channel
Lassa virus receptor binding domain
Nucleosome, illustration
MDM2 and tumour suppressor p53, illustration
Ubiquitinin molecule, molecular model
Human catalase, molecular model
Human haemoglobin molecule
Glutamine synthetase enzyme
RNA duplex molecule
H-Ras p21 oncogene protein
NpmA methyltransferase
Importin alpha 1 protein
Glycogen phosphorylase molecule
Hammerhead ribozyme molecule
Adenovirus fibre shaft protein
Argonaute protein molecule
Heat shock protein 90 chaperone complex
Antibody fragment-lysozyme complex