DNA gyrase protein segment
ATP-dependent protease molecule
Bacterial nanocompartment
Bacterial protease molecule
Manganese catalase enzyme molecule
Galactoside acetyltransferase molecule
Simian virus SV40 large T antigen
Iron-regulatory protein bound to RNA
Bacterial protein-chaperone complex
Src protein molecule
Phosphofructokinase bacterial enzyme
Hexokinase sugar enzyme
Citrate acid cycle enzyme
Proteinase inhibitor molecule
PolyA polymerase, molecular model
HGPRTase molecule
Chitinase enzyme molecule
Lysozyme complexed with antibody
DNA transcription, molecular model
Citrate synthase molecule
Uricase enzyme, molecular model
Scavenger mRNA-decapping enzyme
Carbonic anhydrase molecule
Bioluminescent enzyme molecule
Lysozyme molecule
Family 84 glycoside hydrolase molecule
DNA and MECP2 complex, molecular model
mRNA capping apparatus
Glycosylation enzyme molecule
DNA repair enzyme, molecular model
Human lysine-specific demethylase
Methionine aminopeptidase molecule
Alcohol dehydrogenase molecule
Respiratory complex I
Cyclin-dependent kinase inhibitor complex
Antibiotic resistance enzyme molecule
Bacterial RNA-binding protein molecule
HU DNA binding protein molecule
FecA transmembrane channel
Multidrug transporter molecule
Urea channel molecule
Insect antifreeze protein
Tetraubiquitin protein molecule
Fish antifreeze protein
Cell adhesion protein molecule
Importin heterodimer protein
Calcium-binding protein molecule
Transthyretin blood protein
Eye lens protein molecule
cAMP-dependent protein kinase molecule
Malignant brain-tumor-like protein
Multidrug transporter molecule, illustration
UV-damaged DNA-binding protein and DNA
70S ribosome, molecular model
Pyruvate dehydrogenase complex enzyme
Cytochrome P450 and erythromycin
RNA exosome complex, molecular model
RNA interference molecules
Ribonuclease A molecule
Human RNA exosome complex, molecular mode
Dynamin enzyme, molecular model
Adenovirus fibre shaft protein
Shrew eye lens protein molecule
Rabbit eye lens protein molecule
Marburg viral protein 35 and RNA
Glycogen phosphorylase molecule
Human catalase, molecular model
Glutamine synthetase enzyme
Antibody fragment-lysozyme complex
HIV enzyme protein, molecular model
Bacterial penicillin-binding protein
Calcium pumping ATPase muscle enzyme
Hammerhead ribozyme molecule
NpmA methyltransferase
Elongation factors Tu and Ts
Biotin ligase enzyme, molecular model
Resolvase complexed with DNA
Anthrax toxin prepore, molecular model
Flu virus surface protein molecule
Epidermal growth factor molecule
Epidermal growth factor and receptor
Endonuclease and DNA, molecular model
Ubiquitin molecule
Nuclear import complex molecule
Haemoglobin, molecular model
Growth factor receptor molecule
Integrin transmembrane domain
Wilms tumor suppressor bound to DNA
SelB elongation factor bound to RNA
Human pathogen recognition molecule
P-glycoprotein molecule
Zinc transporter Yiip molecule
ATP-binding cassette transporter
Transcription factor bound to DNA
Guanine-responsive riboswitch
Catalase, molecular model
Lumazine synthase molecule
Small heat shock protein
H-Ras p21 oncogene protein
Heat shock protein 90 chaperone complex
Fungal prion protein
Light-harvesting protein complex
Herpesvirus surface protein molecule
LAC repressor molecule
Tumour suppressor p53 degraded by proteasome, illustration
Argonaute protein molecule
Importin alpha 1 protein
Heterotrimeric G protein molecule
Chaperonin folding protein