Enzyme Collection (page 3)

Parathion hydrolase enzyme F006 / 9731
Parathion hydrolase, molecular model. This enzyme hydrolyses bonds in organophosphates, which include pesticides and the nerve gas sarin

Iron-regulatory protein bound to RNA F006 / 9727
Iron-regulatory protein bound to RNA, molecular model. Iron regulatory protein 1 (IRP1, purple) bound to a short strand of RNA (ribonucleic acid, red) that includes iron-responsive elements (IREs)

DNA repair enzyme, molecular model F006 / 9726
DNA repair enzyme. Molecular model of the DNA (deoxyribonucleic acid) repair enzyme alpha-ketoglutarate-dependent dioxygenase bound to a molecule of DNA (red and blue)

Oxidoreductase enzyme complex F006 / 9725
Oxidoreductase enzyme complex, molecular model. This is the membrane-bound domain formed from of a complex of NADH-quinone oxidoreductase subunits

Aldo-keto reductase enzyme and ibuprofen F006 / 9724
Aldo-keto reductase enzyme and ibuprofen. Molecular model of the enzyme aldo-keto reductase family 1 member C3 (AKR1C3) bound to a molecule of the anti-inflammatory drug ibuprofen

Methyltransferase complexed with DNA F006 / 9711
Methyltransferase complexed with DNA, molecular model. The strand of DNA (deoxyribonucleic acid, red and blue) is enclosed by DNA methyltransferase 1 (DNMT-1, beige)

Pepsinogen molecule F006 / 9710
Pepsinogen. Molecular model of pepsinogen, the inactive precursor to the digestive enzyme pepsin. Pepsion, which is released by the stomach digests proteins

Glycosylation enzyme molecule F006 / 9708
Glycosylation enzyme. Molecular model of the enzyme N-acetylglucosamine (GlcNAc) transferase. This intracellular enzyme adds N-acetylglucosamine molecules to target proteins

Retroviral intasome molecule F006 / 9705
Retroviral intasome molecule. Molecular model of an intasome from a retrovirus complexed with host cell DNA (deoxyribonucleic acid)

Retroviral intasome molecule F006 / 9706
Retroviral intasome molecule. Molecular model of an intasome from a retrovirus complexed with host cell DNA (deoxyribonucleic acid)

NpmA methyltransferase F006 / 9707
NpmA methyltransferase, molecular model. Methyltransferase enzymes act to add methyl groups to nucleic acids such as DNA (deoxyribonucleic acid), a process called DNA methylation

Notch transcription complex F006 / 9703
Notch transcription complex. Molecular model of the notch transcription complex bound to the human Hes1 promoter on a strand of DNA (deoxyribonucleic acid, red and blue)

Oxidoreductase enzyme complex F006 / 9700
Oxidoreductase enzyme complex. Molecular model of a complex of NADH-quinone oxidoreductase subunits. The whole is termed respiratory complex I

DNA repair enzyme, molecular model F006 / 9704
DNA repair enzyme. Molecular model of the DNA (deoxyribonucleic acid) repair enzyme dioxygenase bound to a molecule of DNA (red and blue)

Isocitrate dehydrogenase kinase F006 / 9698
Isocitrate dehydrogenase kinase. Molecular model of isocitrate dehydrogenase kinase phosphatase (AceK) complexed with its substrate isocitrate dehydrogenase (ICDH)

Lactate dehydrogenase enzyme molecule F006 / 9699
Lactate dehydrogenase enzyme, molecular model. This enzyme converts pyruvate to lactate in the final steps of glycolysis, and lactate to pyruvate during the lactic acid cycle

mRNA capping apparatus F006 / 9694
mRNA capping apparatus. Molecular model of the Cet-1-Ceg1 mRNA capping apparatus

Glucansucrase enzyme molecule F006 / 9685
Glucansucrase, molecular model. This enzyme catalyses the cleavage of sucrose into fructose and glucose

HIV reverse transcription enzyme F006 / 9684
HIV reverse transcription enzyme. Molecular model of the reverse transcriptase enzyme found in HIV (the human immunodeficiency virus) bound to the inhibitor nevirapine

Nucleoside diphosphate kinase molecule F006 / 9671
Nucleoside diphosphate kinase. Molecular model of the enzyme nucleoside diphosphate kinase from the Acanthamoeba polyphaga mimivirus

Isocitrate dehydrogenase molecule F006 / 9663
Isocitrate dehydrogenase, molecular model. This enzyme catalyses the third step in the citric acid (or Krebs) cycle, the process by which mitochondria convert glucose to energy

DNA and MECP2 complex, molecular model F006 / 9664
DNA and MECP2 complex. Molecular model of MECP2 (methyl CpG binding protein 2 (Rett syndrome)) bound to the BDNF (brain-derived neurotrophic factor)

Selenocysteine synthase enzyme molecule F006 / 9661
Selenocysteine synthase enzyme molecule. Computer model showing the molecular structure of the enzyme selenocysteine synthase (SecS)

Bacterial biofilm enzyme F006 / 9658
Bacterial biofilm enzyme. Molecular model of the enzyme glucansucrase from the bacterium Streptococcus mutans. This enzyme is used to form bacterial biofilms on teeth that cause dental caries

Sodium-potassium ion pump protein F006 / 9656
Sodium-potassium ion pump protein, molecular model. Sodium-potassium ATPase (adenosine triphosphatase) is an ATP-powered ion pump found in all animal cells

Fatty acid synthase molecule F006 / 9647
Fatty acid synthase (FAS), molecular model. FAS is a multi-enzyme that plays a key role in the synthesis of fatty acids (lipids) in the human body. It is not a single enzyme but a whole enzyme system

Src protein molecule F006 / 9646
Src protein, molecular model. Src is a tyrosine kinase, a signalling protein in cells that has the ability to turn on protein synthesis and cellular growth

Copper, zinc superoxide dismutase enzyme F006 / 9645
Copper, zinc superoxide dismutase enzyme

Trypsin molecule F006 / 9634
Trypsin molecule. Molecular model of the digestive protease enzyme trypsin. Trypsin is released by the pancreas to break down proteins into smaller chains of amino acids

PolyA polymerase and RNA F006 / 9635
Poly(A) polymerase and RNA. Molecular model of poly(A) polymerase complexed with RNA (ribonucleic acid) and ATP (adenosine triphosphate)

Trypsin molecule with inhibitor F006 / 9633
Trypsin molecule. Molecular model of the digestive protease enzyme beta-trypsin complexed with an inhibitor. Trypsin is released by the pancreas to break down proteins into smaller chains of amino

RNA exosome complex, molecular model F006 / 9620
RNA exosome complex, molecular model. This multi-protein complex functions to break up strands of RNA (ribonucleic acid, pink) during biochemical processes

Rhomboid protease molecule F006 / 9621
Rhomboid protease. Molecular model of the rhomboid protease enzyme GlpG from the bacterium Escherichia coli. Proteases are enzymes that break down proteins

RNA editing enzyme F006 / 9615
RNA editing enzyme, molecular model. This enzyme binds to double-stranded RNA (ribonucleic acid)

Lysozyme molecule F006 / 9616
Lysozyme, molecular model. Lysozymes are enzymes found in a wide range of biological fluids such as tears, saliva and milk. This lysozyme is from chicken egg white

RNA-dependent RNA polymerase molecule F006 / 9611
RNA-dependent RNA polymerase, molecular model. This enzyme catalyses the replication of RNA (ribonucleic acid) from an RNA template

HIV reverse transcription enzyme F006 / 9606
HIV reverse transcription enzyme. Molecular model of the reverse transcriptase enzyme (pink) found in HIV (the human immunodeficiency virus)

Rhomboid protease molecule F006 / 9607
Rhomboid protease. Molecular model of the rhomboid protease enzyme GlpG from the bacterium Escherichia coli. Proteases are enzymes that break down proteins

Glutamine synthetase enzyme F006 / 9598
Glutamine synthetase enzyme, molecular model. This ligase enzyme forms chemical bonds between molecules. It plays an important role in the metabolism of nitrogen by catalysing the condensation of

3-hydroxyacyl-CoA dehydrogenase F006 / 9602
3-hydroxyacyl-CoA dehydrogenase, molecular model. This enzyme is found in human heart tissue, and catalyses a reaction that is part of the beta-oxidation pathway

Thrombin protein, molecular model F006 / 9603
Thrombin protein, molecular model. Thrombin is an enzyme involved in the blood coagulation (clotting) process. It converts fibrinogen (a soluble plasma glycoprotein synthesised in the liver)

RNA-editing enzyme, molecular model F006 / 9599
RNA-editing enzyme. Molecular model of a left-handed, RNA double helix (Z-RNA, centre) bound by the Z alpha domain of the human RNA-editing enzyme ADAR1 (double-stranded RNA adenosine deaminase)

Protein kinase regulatory subunit F006 / 9600
Protein kinase regulatory subunit. Molecular model of a regulatory subunit from cAMP-dependent protein kinase bound to. This enzyme is also known as protein kinase A (PKA)

Respiratory complex I F006 / 9593
Respiratory complex I. Molecular model of the hydrophilic domain of respiratory complex I from the bacterium Thermus thermophilus. This enzyme is involved in energy production

Chymotrypsin digestive enzyme molecule F006 / 9577
Chymotrypsin digestive enzyme, molecular model. Chymotrypsin is a protease, an enzyme that breaks down proteins and peptides. It is secreted into the duodenum (small intestine) by the pancreas

Ribonuclease bound to transfer RNA F006 / 9591
Ribonuclease bound to transfer RNA, molecular model. This complex consists of the ribonuclease Z (RNase Z, green and pink) enzyme bound to a transfer RNA (tRNA) molecule (orange and blue)

RNA interference protein, molecular model F006 / 9589
RNA interference protein, molecular model. This RNA interference protein is also known as dicer. It is an RNAase enzyme that cleaves double-stranded RNA into short fragments called small interfering

Aspartyl-tRNA synthetase protein molecule. Molecular model showing the structure of the active site of aspartyl-tRNA synthetase (DARS) from yeast

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Enzymes: The Molecular Architects of Life DNA transcription, molecular model: they are the key players in the intricate process of DNA transcription, where they faithfully transcribe genetic information into RNA molecules. Metabolic enzyme, artwork: Metabolic enzymes act as catalysts in various biochemical reactions within our bodies, ensuring efficient metabolism and energy production. HIV reverse transcription enzyme: This remarkable enzyme allows the human immunodeficiency virus (HIV) to convert its RNA genome into DNA, enabling it to integrate with our own genetic material. Hepatitis C virus enzyme, molecular model: Understanding the structure and function of hepatitis C virus enzymes is crucial for developing effective treatments against this persistent viral infection. Anatomy of Organs Engraving: Enzymes play a vital role in maintaining organ health by facilitating essential processes like digestion, respiration, and hormone regulation throughout our body's intricate anatomy. Manganese superoxide dismutase enzyme F006 / 9423: This antioxidant enzyme protects cells from harmful free radicals by converting them into less damaging substances—a guardian against oxidative stress. Cytochrome b5 molecule C015 / 6696: As an electron carrier protein found in cell membranes, cytochrome b5 assists other enzymes in performing critical metabolic reactions involved in energy production and lipid metabolism. Glutamine synthetase enzyme: Essential for nitrogen metabolism, glutamine synthetase ensures that ammonia produced during cellular processes is safely converted into non-toxic compounds like amino acids or urea. RNA-editing enzyme, molecular model: These specialized enzymes modify RNA molecules after their synthesis—fine-tuning gene expression patterns and expanding the diversity of proteins encoded by our genes. ATPase molecule: ATPases are indispensable for cellular energy transfer; these enzymes hydrolyze adenosine triphosphate (ATP), releasing stored energy to power various cellular processes.