Enzyme Collection (page 7)

Viral RNA-binding protein molecule
RNA-binding protein. Molecular model of the nonstructural protein 2 (NSP2) RNA-binding protein from the rotavirus. This enzyme is essential for the formation of viroplasms

DNA translocase, molecular model
ftsk, , protein, biomolecule, macromolecule, translocase, enzyme, pseudomonas aeruginosa, bacteria, biochemistry, biology, genetics, molecular biology, proteomics, artwork, illustration

Photosystem II molecule
Photosystem II. Molecular model of the photosystem II complex. Photosystems are protein complexes involved in photosynthesis

Bacterial twitching motility protein
pilt, , protein, biomolecule, macromolecule, bacterial twitching motility, enzyme, aquifex aeolicus, bacterium, biochemistry, biology, molecular biology, proteomics, bacteriology, microbiology

RuvBL1 helicase enzyme, molecular model. Helicases are enzymes that carry out several roles, primarily separating the two strands of the DNA (deoxyribonucleic acid) double helix

Ribonuclease bound to angiogenin C015 / 5069
Ribonuclease bound to angiogenin. Molecular model of a molecule of human angiogenin bound to a human placental ribonuclease inhibitor molecule

Grapefruit and drugs C016 / 8811
Many of the drugs that are usually prescribed and essential for the treatment of common medical conditions interact adversely with grapefruit, grapefruit juice and some other citrus fruits

DNA repair enzyme, molecular model
DNA repair enzyme. Molecular model of a recG molecule (purple) complexed with a three-way DNA (deoxyribonucleic acid, pink, green and yellow) junction

Pancreatic exocrine cells, TEM
Pancreatic exocrine cells. Transmission electron micrograph (TEM) of a section through exocrine cells in the pancreas, showing numerous zymogen granules (circles), rough endoplasmic reticulum (ER)

Carbamoylsarcosine amidase enzyme, molecular model. This enzyme catalyses the chemical reaction that converts the chemical N-carbamoylsarcosine in the presence of water to sarcosine (N-methylglycine)

Eosinophil white blood cell, TEM
Eosinophil white blood cell. Transmission electron micrograph (TEM) of a section through an eosinophil white blood cell (leukocyte)

Pancreatic acinar cell, TEM
Pancreatic acinar cell. Transmission electron micrograph (TEM) of a section through an enzyme-secreting acinar cell in the human pancreas, showing the nucleus (dark purple, centre)

Cytochrome c oxidase molecule
Cytochrome c oxidase. Molecular model of a cytochrome c oxidase enzyme from the mitochondria of a cows heart. Cytochrome molecules perform oxidation and reduction reactions for electron transport

Cre-Lox recombination, molecular model
Cre-Lox recombination. Molecular model of the enzyme CRE (cyclization recombination) recombinase (blue) mediating the recombination of strands of DNA (deoxyribonucleic acid, pink and yellow)

Bacterial protease molecule. Computer model of a molecule of HsIUV protease complexed with its chaperone protein from a bacterium. Proteases are enzymes that break down proteins

Thymidylic acid-ribonuclease A complex. Molecular model of a thymidylic acid tetramer (blue) in complex with ribonuclease A (red)

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

Cyclin-dependent kinase inhibitor complex. Molecular model of the inhibitor protein P27Kip1 bound to a cyclin-A-cyclin dependent kinase 2 complex

Drug effect on viruses, conceptual image C016 / 6253
Drug effect on viruses, conceptual image. Computer artwork showing a single strand of DNA (deoxyribonucleic acid, spiral, centre), red blood cells (pink), virus particles (virions, green, small)

Calcium ATPase ion pump C015 / 7143
Calcium ATPase ion pump, molecular model. This enzyme is found in muscle cell membranes, where it pumps calcium in and out of muscle cells and controls muscle contractions

Amylase, molecular model C015 / 7141
Amylase. Molecular model of the enzyme alpha-amylase from human saliva. Amylase catalyses the breakdown of starch to sugars, and so starts the digestive process

Trypsin molecule with inhibitor C015 / 8436
Trypsin molecule. Molecular model of the digestive protease enzyme beta-trypsin (pink) complexed with an inhibitor (blue)

Sodium-potassium ion pump proteins C015 / 9993
Sodium-potassium ion pump proteins, molecular model. Sodium-potassium ATPase (adenosine triphosphatase) is an ATP-powered ion pump found in all animal cells

Thrombin complexed with fibrinogen C015 / 7148
Thrombin complexed with fibrinogen, molecular model. The thrombin molecules (left and right, purple and green) are bound to the central part of the fibrinogen molecule (centre, multiple colours)

Amylase, molecular model C015 / 7140
Amylase. Molecular model of the enzyme alpha-amylase from human saliva. Amylase catalyses the breakdown of starch to sugars, and so starts the digestive process

3-hydroxyacyl-CoA dehydrogenase C015 / 9940
3-hydroxyacyl-CoA dehydrogenase, molecular model. This enzyme is found in human heart tissue, and catalyzes a reaction that is part of the beta-oxidation pathway

Sodium-potassium ion pump proteins C015 / 9997
Sodium-potassium ion pump proteins, molecular model. Sodium-potassium ATPase (adenosine triphosphatase) is an ATP-powered ion pump found in all animal cells

Bacterial alcohol dehydrogenase molecule C015 / 7146
Bacterial alcohol dehydrogenase. Molecular model of an NADP-dependent alcohol dehydrogenase enzyme from the bacterium Thermoanaerobacter brockii

Retinal-producing oxygenase enzyme C015 / 7150
Retinal-producing oxygenase enzyme, molecular model. This enzyme, an oxygenase, plays a role in the production and metabolism of retinal and other apocarotenoids

Chymotrypsin inhibitor 2 molecule C015 / 8937
Chymotrypsin inhibitor 2, molecular model. This enzyme is a serine protease inhibitor (serpin) found in barley (Hordeum vulgare) seeds

Chymotrypsin inhibitor 2 molecule C015 / 8902
Chymotrypsin inhibitor 2, molecular model. This enzyme is a serine protease inhibitor (serpin) found in barley (Hordeum vulgare) seeds

Islet of Langerhans, light micrograph C016 / 0514
Islet of Langerhans. Light micrograph of a section through an islet of Langerhans in a pancreas. Scattered throughout the pancreas, the islets are endocrine cells that secrete a range of hormones

Thrombin complexed with fibrinogen C015 / 7149
Thrombin complexed with fibrinogen, molecular model. The thrombin molecules (left and right, brown and pink) are bound to the central part of the fibrinogen molecule (centre, multiple colours)

3-hydroxyacyl-CoA dehydrogenase C015 / 9941
3-hydroxyacyl-CoA dehydrogenase, molecular model. This enzyme is found in human heart tissue, and catalyzes a reaction that is part of the beta-oxidation pathway

Calcium ATPase ion pump C015 / 7142
Calcium ATPase ion pump, molecular model. This enzyme is found in muscle cell membranes, where it pumps calcium in and out of muscle cells and controls muscle contractions

Islet of Langerhans, light micrograph C016 / 0513
Islet of Langerhans. Light micrograph of a section through an islet of Langerhans in a pancreas. Scattered throughout the pancreas, the islets are endocrine cells that secrete a range of hormones

Trypsin molecule with inhibitor C015 / 8379
Trypsin molecule. Molecular model of the digestive protease enzyme beta-trypsin (pink) complexed with an inhibitor (blue)

Retinal-producing oxygenase enzyme C015 / 7151
Retinal-producing oxygenase enzyme, molecular model. This enzyme, an oxygenase, plays a role in the production and metabolism of retinal and other apocarotenoids

Restriction enzyme and DNA, illustration C018 / 0785
Restriction enzyme. Illustration of a restriction enzyme (green) complexed with DNA (deoxyribonucleic acid, across centre)

DNA repair, illustration C018 / 0782
DNA repair. Illustation of a DNA (deoxyribonucleic acid) ligase enzyme (upper centre) repairing damaged DNA (spiral)

Ricin molecule, artwork C017 / 3656
Ricin molecule. Computer artwork showing the structure of a molecule of the toxic protein ricin. Ricin comprises two entwined amino acid chains; A (yellow) and B (blue)

Ricin molecule, artwork C017 / 3655
Ricin molecule. Computer artwork showing the structure of a molecule of the toxic protein ricin. Ricin comprises two entwined amino acid chains; A (yellow) and B (blue)

Ricin molecule, artwork C017 / 3648
Ricin molecule Computer artwork showing the structure of a molecule of the toxic protein ricin (blue and yellow) with an active ribosome in the background

Aspartyl-tRNA synthetase protein molecule C014 / 0874
Aspartyl-tRNA synthetase protein molecule. Molecular model showing the structure of the active site of aspartyl-tRNA synthetase (DARS) from yeast

Coagulation factor complex molecule C014 / 0409
Coagulation factor complex molecule. Molecular model showing the interaction between coagulation factor VIII (FVIII, pink, blue and yellow), factor IXa (FIXa)

EcoRV restriction enzyme molecule C014 / 2113
EcoRV restriction enzyme. Molecular model of the type II restriction enzyme EcoRV (pink and blue) bound to a cleaved section of DNA (deoxyribonucleic acid, white)

DNA helicase molecule
DNA helicase. Molecular model of a helicase molecule (blue) complexed with a molecule of DNA (deoxyribonucleic acid, pink and yellow)

Methyladenine glycosylase bound to DNA C014 / 0877
Methyladenine glycosylase bound to DNA. Computer model showing a molecule of human DNA-3-methyladenine glycosylase (purple) in complex with DNA (deoxyribonucleic acid, green and orange)

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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.