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Enzyme Collection (page 6)

Enzymes: The Molecular Architects of Life DNA transcription, molecular model: they are the key players in the intricate process of DNA transcription

Background imageEnzyme Collection: HGPRTase molecule F006 / 9359

HGPRTase molecule F006 / 9359
HGPRTase. Molecular model of hypoxanthine-guanine phosphoribosyltransferase (HGPRTase) bound to a molecule of guanosine monophosphate (GMP). HGPRTase is involved in the purine salvage pathway

Background imageEnzyme Collection: Glycogen phosphorylase molecule F006 / 9347

Glycogen phosphorylase molecule F006 / 9347
Glycogen phosphorylase, molecular model. This is an enzyme involved in breaking down glycogen, the energy storage molecule involved in animal metabolism

Background imageEnzyme Collection: Glucose oxidase molecule F006 / 9348

Glucose oxidase molecule F006 / 9348
Glucose oxidase, molecular model. In cells this enzyme catalyses the breakdown of glucose into its metabolites

Background imageEnzyme Collection: Bacterial protease molecule F006 / 9340

Bacterial protease molecule F006 / 9340
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

Background imageEnzyme Collection: Glutamine synthetase enzyme F006 / 9338

Glutamine synthetase enzyme F006 / 9338
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

Background imageEnzyme Collection: Valyl-tRNA synthetase molecule F006 / 9342

Valyl-tRNA synthetase molecule F006 / 9342
Valyl-tRNA synthetase protein molecule. Molecular model showing bacterial valyl-tRNA synthetase complexed with valyl tRNA (transfer ribonucleic acid)

Background imageEnzyme Collection: Xanthine dehydrogenase molecule F006 / 9336

Xanthine dehydrogenase molecule F006 / 9336
Xanthine dehydrogenase molecule. Molecular model of the Xanthine dehydrogenase (XDH) enzyme. XDH is an oxidoreductase enzyme that catalyses the last two steps in the formation of urate (uric acid)

Background imageEnzyme Collection: Isoleucyl-tRNA synthetase molecule F006 / 9329

Isoleucyl-tRNA synthetase molecule F006 / 9329
Isoleucyl-tRNA synthetase protein molecule. Molecular model showing bacterial isoleucyl-tRNA synthetase complexed with aspartyl tRNA (transfer ribonucleic acid)

Background imageEnzyme Collection: Cre-Lox recombination, molecular model F006 / 9322

Cre-Lox recombination, molecular model F006 / 9322
Cre-Lox recombination. Molecular model of the enzyme CRE (cyclization recombination) recombinase (beige) mediating the recombination of strands of DNA (deoxyribonucleic acid, red and blue)

Background imageEnzyme Collection: Proteinase inhibitor molecule F006 / 9321

Proteinase inhibitor molecule F006 / 9321
Proteinase inhibitor. Molecular model of a proteinase inhibitor, or antitrypsin, molecule bound to a tryspin protease. The proteinase inhibitor is a type of serine protease inhibitor (serpin)

Background imageEnzyme Collection: Oxoguanine glycosylase complex F006 / 9318

Oxoguanine glycosylase complex F006 / 9318
Oxoguanine glycosylase complex. Computer model showing an 8-Oxoguanine glycosylase (OGG1) molecule (beige) bound to a section of DNA (deoxyribonucleic acid, red and blue)

Background imageEnzyme Collection: Restriction enzyme and DNA F006 / 9315

Restriction enzyme and DNA F006 / 9315
Restriction enzyme and DNA. Molecular model showing an EcoRI endonuclease enzyme (purple and green) bound to a DNA (deoxyribonucleic acid) molecule (red and blue)

Background imageEnzyme Collection: MoaC protein molecule F006 / 9312

MoaC protein molecule F006 / 9312
MoaC protein. Molecular model of the molybdenum cofactor biosynthesis protein MoaC. This enzyme is involved in carbon, nitrogen and sulphur metabolism

Background imageEnzyme Collection: Elongation factors Tu and Ts F006 / 9310

Elongation factors Tu and Ts F006 / 9310
Elongation factors Tu and Ts, molecular model. These enzymes are involved in the elongation of polypeptide chains during translation

Background imageEnzyme Collection: Pyruvate dehydrogenase complex enzyme F006 / 9303

Pyruvate dehydrogenase complex enzyme F006 / 9303
Pyruvate dehydrogenase complex enzyme. Molecular model of dihydrolipoyl transacetylase one of the enzymes in the pyruvate dehydrogenase complex

Background imageEnzyme Collection: Oxoguanine glycosylase complex F006 / 9307

Oxoguanine glycosylase complex F006 / 9307
Oxoguanine glycosylase complex. Computer model showing an 8-Oxoguanine glycosylase (OGG1) molecule (beige) bound to a section of DNA (deoxyribonucleic acid, red and blue)

Background imageEnzyme Collection: ATPase molecule F006 / 9300

ATPase molecule F006 / 9300
ATPase molecule. Molecular model of the central stalk of an ATP synthase (ATPase) molecule from a cow. ATPase is an important enzyme that provides energy for cells through the synthesis of adenosine

Background imageEnzyme Collection: Hepatitis D virus ribozyme complex F006 / 9295

Hepatitis D virus ribozyme complex F006 / 9295
Hepatitis D virus ribozyme complex. Molecular model showing an RNA (ribonucleic acid) strand from an Hepatitis delta (Hepatitis D) virus genomic ribozyme, complexed with a ribonucleoprotein

Background imageEnzyme Collection: Lumazine synthase molecule F006 / 9291

Lumazine synthase molecule F006 / 9291
Lumazine synthase molecule. Molecular model showing the structure of a lumazine synthase enzyme molecule from a Brucella abortus bacterium

Background imageEnzyme Collection: NAD-dependent DNA ligase molecule F006 / 9290

NAD-dependent DNA ligase molecule F006 / 9290
NAD dependent DNA ligase. Molecular model of NAD(+)-dependent DNA ligase. DNA ligase is an enzyme that binds two strands of DNA (deoxyribonucleic acid) together

Background imageEnzyme Collection: Human catalsae, molecular model F006 / 9288

Human catalsae, molecular model F006 / 9288
Human catalase, molecular model. This enzyme catalyses the break down of hydrogen peroxide to water and oxygen. Hydrogen peroxide is a highly toxic byproduct of a number of normal cellular processes

Background imageEnzyme Collection: Beta-carbonic anhydrase molecule F006 / 9286

Beta-carbonic anhydrase molecule F006 / 9286
Beta-carbonic anhydrase, molecular model. This enzyme is from the red algae Porphyridium purpureum. It catalyses the reversible hydration of carbon dioxide

Background imageEnzyme Collection: Elongation factor G F006 / 9284

Elongation factor G F006 / 9284
Elongation factor G. Molecular model of elongation factor G (EF-G) complexed with GDP (guanosine diphosphate). This enzyme is involved in the elongation of polypeptide chains during translation

Background imageEnzyme Collection: Creatine kinase molecule F006 / 9276

Creatine kinase molecule F006 / 9276
Creatine kinase molecule. This enzyme catalyses the phosphorylation of creatine to creatine phosphate. It plays an important role in energy metabolism in cells with high or fluctuating energy

Background imageEnzyme Collection: Adenylyl cyclase enzyme molecule F006 / 9279

Adenylyl cyclase enzyme molecule F006 / 9279
Adenylyl cyclase. Molecular model of adenylyl cyclase complexed with an inhibitor. This enzyme catalyses the conversion of ATP (adenosine triphosphate) to cyclic AMP (cAMP) and pyrophosphate

Background imageEnzyme Collection: Citrate synthase molecule F006 / 9277

Citrate synthase molecule F006 / 9277
Citrate synthase, molecular model. This enzyme is involved in the first step of the citric acid (or Krebs) cycle, the process by which mitochondria convert glucose to energy

Background imageEnzyme Collection: mRNA capping enzyme molecule F006 / 9273

mRNA capping enzyme molecule F006 / 9273
mRNA capping enzyme. Molecular model of the mRNA capping enzyme mRNA guanylyltransferase complexed with a cap analogue

Background imageEnzyme Collection: Adenylyl cyclase enzyme molecule F006 / 9271

Adenylyl cyclase enzyme molecule F006 / 9271
Adenylyl cyclase enzyme, molecular model. This enzyme catalyses the conversion of ATP (adenosine triphosphate) to cyclic AMP (cAMP) and pyrophosphate. cAMP regulates numerous cell functions

Background imageEnzyme Collection: Serotonin N-acetyl transferase molecule F006 / 9272

Serotonin N-acetyl transferase molecule F006 / 9272
Serotonin N-acetyl transferase. Molecular model of serotonin N-acetyl transferase complexed with coenzyme A-S-acetyltryptamine

Background imageEnzyme Collection: HGPRTase molecule F006 / 9270

HGPRTase molecule F006 / 9270
HGPRTase. Molecular model of hypoxanthine-guanine phosphoribosyltransferase (HGPRTase) from the malaria parasite Plasmodium falciparum. HGPRTase is involved in the purine salvage pathway

Background imageEnzyme Collection: Bleomycin hydrolase molecule F006 / 9265

Bleomycin hydrolase molecule F006 / 9265
Bleomycin hydrolase. Molecular model of the cysteine protease bleomycin hydrolase. This enzyme is thought to be a major cause of resistance to the bleomycin chemotherapy drug

Background imageEnzyme Collection: Metabolic enzyme molecule F006 / 9262

Metabolic enzyme molecule F006 / 9262
Metabolic enzyme. Molecular model of the enzyme aconitase, which is involved in the citric acid (or Krebs) cycle. The citric acid cycle is the process by which mitochondria convert glucose to energy

Background imageEnzyme Collection: Carbonic anhydrase II molecule F006 / 9263

Carbonic anhydrase II molecule F006 / 9263
Carbonic anhydrase II, molecular model. This enzyme catalyses the reversible hydration of carbon dioxide

Background imageEnzyme Collection: ATP synthase molecule F006 / 9258

ATP synthase molecule F006 / 9258
ATP synthase molecule. Molecular model showing the structure of ATP synthase (ATPase) subunit A and C. ATPase is an important enzyme that provides energy for cells through the synthesis of adenosine

Background imageEnzyme Collection: Bioluminescent enzyme molecule F006 / 9256

Bioluminescent enzyme molecule F006 / 9256
Bioluminescent enzyme. Molecular model of the bioluminescent enzyme luciferase from the marine bacteria Vibrio harveyi

Background imageEnzyme Collection: Type II topoisomerase molecule F006 / 9251

Type II topoisomerase molecule F006 / 9251
Type II topoisomerase, molecular model. The topoisomerase enzymes assist in uncoiling DNA (deoxyribonucleic acid). DNA is usually stored in a supercoiled form

Background imageEnzyme Collection: Hexokinase and glucose complex F006 / 9248

Hexokinase and glucose complex F006 / 9248
Hexokinase and glucose complex. Molecular model of a complex between the enzyme hexokinase and the sugar glucose. Hexokinase promotes the conversion (phosphorylation)

Background imageEnzyme Collection: Aspartyl-tRNA synthetase molecule F006 / 9238

Aspartyl-tRNA synthetase molecule F006 / 9238
Aspartyl-tRNA synthetase protein molecule. Molecular model showing bacterial aspartyl-tRNA synthetase complexed with aspartyl tRNA (transfer ribonucleic acid)

Background imageEnzyme Collection: DNase I complex, molecular model F006 / 9239

DNase I complex, molecular model F006 / 9239
DNase I complex. Molecular model of deoxyribonuclease I complexed with actin

Background imageEnzyme Collection: Oestrogen sulfotransferase molecule F006 / 9237

Oestrogen sulfotransferase molecule F006 / 9237
Oestrogen sulfotransferase. Molecular model of the enzyme oestrogen sulfotransferase complexed with oestradiol and ADP (adenosine diphosphate)

Background imageEnzyme Collection: DNA gyrase protein segment F006 / 9233

DNA gyrase protein segment F006 / 9233
DNA gyrase protein segment, molecular model. The DNA gyrase enzyme supercoils DNA (deoxyribonucleic acid) for packaging within the cell nucleus

Background imageEnzyme Collection: Beta glucanase enzyme molecule F006 / 9231

Beta glucanase enzyme molecule F006 / 9231
Beta glucanase enzyme, molecular model. This enzyme hydrolyses the glucose subunits that make up some polysaccharides. This is a circular permeation of the enzyme

Background imageEnzyme Collection: Acetylcholinesterase molecule F006 / 9226

Acetylcholinesterase molecule F006 / 9226
Acetylcholinesterase, molecular model. This enzyme hydrolyses the neurotransmitter acetylcholine, stopping signal transmission

Background imageEnzyme Collection: Alcohol dehydrogenase molecule F006 / 9228

Alcohol dehydrogenase molecule F006 / 9228
Alcohol dehydrogenase, molecular model. Alcohol dehydrogenase (ADH) is an enzyme that facilitates the break-down of alcohols in the body, which could otherwise be toxic

Background imageEnzyme Collection: Metabolic enzyme molecule F006 / 9227

Metabolic enzyme molecule F006 / 9227
Metabolic enzyme. Molecular model of the enzyme aconitase, which is involved in the citric acid (or Krebs) cycle. The citric acid cycle is the process by which mitochondria convert glucose to energy

Background imageEnzyme Collection: ATP-dependent DNA ligase molecule F006 / 9217

ATP-dependent DNA ligase molecule F006 / 9217
ATP dependent DNA ligase. Molecular model of ATP-dependent DNA ligase complexed with ATP (adenosine triphosphate). DNA ligase is an enzyme that binds two strands of DNA (deoxyribonucleic acid)

Background imageEnzyme Collection: Bacteriophage T4 lysozyme molecule F006 / 9216

Bacteriophage T4 lysozyme molecule F006 / 9216
Bacteriophage T4 lysozyme, molecular model. Lysozymes are enzymes that disrupt the polysaccharide components of bacterial cell walls, leaving them susceptible to destruction

Background imageEnzyme Collection: Ribonuclease bound to angiogenin C015 / 5070

Ribonuclease bound to angiogenin C015 / 5070
Ribonuclease bound to angiogenin. Molecular model of a molecule of human angiogenin bound to a human placental ribonuclease inhibitor molecule



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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.