Beta Sheet Collection (page 9)

Integrin, molecular model F006 / 9388
Integrin. Molecular model of the integrin protein alpha-v beta-3. This is a transmembrane protein that is found on platelets. It is composed of two subunits; integrin alpha-V and integrin beta 3

VMA-1 derived endonuclease molecule F006 / 9389
VMA-1 derived endonuclease. Molecular model of the VMA-1 derived endonuclease restriction enzyme. Restriction enzymes, also known as restriction endonucleases

Uroporphyrinogen III decarboxylase F006 / 9387
Uroporphyrinogen III decarboxylase. Molecular model of the enzyme human uroporphyrinogen III decarboxylase (UROD). Mutations or deficiencies in this enzyme cause the disorder porphyria with a build

HIV reverse transcription enzyme F006 / 9385
HIV reverse transcription enzyme. Molecular model of the reverse transcriptase enzyme found in HIV (the human immunodeficiency virus) bound to the inhibitor nevirapine

Anthrax lethal factor molecule F006 / 9384
Anthrax lethal factor, molecular model. This enzyme is one of three protein components that form the anthrax toxin produced by the bacterium Bacillus anthracis

Early endosome antigen 1 molecule F006 / 9386
Early endosome antigen 1 (EEA1), molecular model. This protein is involved in the fusion and sorting of endosomes (membrane-bound compartments used to transport molecules)

Manganese catalase enzyme molecule F006 / 9383
Manganese catalase. Molecular model of the enzyme manganese catalase from the bacterium Lactobacillus plantarum. This enzyme catalyses the break down of hydrogen peroxide to water and oxygen

Photosystem I molecule F006 / 9380
Photosystem I. Molecular model of the photosystem I complex from the cyanobacterium Synechococcus elongatus. Shown here are beta-carotene, alpha-chlorophyll and reaction centre subunits

Repair protein and DNA, molecular model F006 / 9382
Repair protein and DNA. Molecular model of the Ku heterodimer (yellow and pink) bound to a strand of DNA (deoxyribonucleic acid, red and blue) as part of the repair process

Norwalk virus capsid, molecular model F006 / 9372
Norwalk virus capsid, molecular model. This norovirus, which causes a viral form of gastroenteritis, is transmitted from person-to-person or through contaminated food

Anthrax lethal factor molecule F006 / 9379
Anthrax lethal factor, molecular model. This enzyme is one of three protein components that form the anthrax toxin produced by the bacterium Bacillus anthracis

Multidrug efflux pump molecule F006 / 9376
Multidrug efflux pump. Molecular model of the multidrug efflux pump AcrB from the bacterium Escherichia coli. This protein pumps drugs, including antibiotics, out of the bacterial cell

Calcium pumping ATPase muscle enzyme F006 / 9377
Calcium pumping ATPase enzyme. Molecular model of the ATPase enzyme that pumps calcium in and out of muscle cells and controls muscle contractions

Epidermal growth factor and receptor F006 / 9375
Epidermal growth factor molecule. Molecular model of epidermal growth factor (EGF) bound to a receptor. EGF plays an important role in the regulation of cell growth, proliferation and differentiation

Amyloid beta protein molecule F006 / 9378
Amyloid beta protein. Molecular model showing the structure of amyloid beta protein, the primary component of amyloid plaques found in the brains of Alzheimers patients

Chitinase enzyme molecule F006 / 9374
Chitinase, molecular model. This enzyme catalyses the break down of glycosidic bonds in chitin, the main component of fungal cell walls and the exoskeletons of arthropods

Immunoglobulin G antibody molecule F006 / 9371
Immunoglobulin G (IgG) antibody, molecular model. This is the most abundant immunoglobulin and is found in all body fluids

Human interferon alpha molecule F006 / 9373
Human interferon alpha, molecular model. Interferons are proteins produced by white blood cells as part of the immune response to invading pathogens, especially viruses

DNA transcription, molecular model F006 / 9368
DNA transcription. Molecular model of the enzyme RNA polymerase II synthesising a mRNA (messenger ribonucleic acid) strand from a DNA (deoxyribonucleic acid) template

Hexokinase sugar enzyme F006 / 9370
Hexokinase, molecular model. This enzyme promotes the conversion (phosphorylation) of glucose into glucose 6-phosphate. Cells then use the glucose 6-phosphate when they require energy

Eye lens protein molecule F006 / 9367
Eye lens protein. Molecular model of delta-crystallin, a protein found in the lens of the eye. The regular arrangement of the protein in the lens is thought to be responsible for its transparency

Cholesterol producing enzyme and statin F006 / 9366
Cholesterol producing enzyme and statin. Computer model showing the molecular structure of HMG-CoA reductase (HMGCR) in complex with Atorvastatin

Interleukin-1 beta molecule F006 / 9369
Interleukin-1 beta, molecular model. This cytokine immune protein is an important mediator of the inflammatory response

Cholesterol producing enzyme molecule F006 / 9365
Cholesterol producing enzyme. Molecular model of HMG-CoA reductase (HMGCR), the rate-controlling enzyme of the metabolic pathway that produces cholesterol in the body

Bacterial cell wall enzyme molecule F006 / 9364
Bacterial cell wall enzyme. Molecular model of D-alanyl-D-alanine carboxypeptidase, a transpeptidase. This enzyme cross-links peptidoglycan chains in bacterial cell walls, making them rigid

Mitochondrial processing peptidase F006 / 9362
Yeast mitochondrial processing peptidase, molecular model. This enzyme plays an essential role in importing mitochondrial proteins

MHC protein-antigen complex F006 / 9363
MHC protein-antigen complex. Molecular model of the human class I MHC (major histocompatibility complex) protein HLA-B27 complexed with beta-2 microglobulin

Phosphoglucose isomerase molecule F006 / 9361
Phosphoglucose isomerase molecule. Molecular model of a rabbit phosphoglucose isomerase molecule complexed with a fructose-6-phosphate molecule

HIV reverse transcription enzyme F006 / 9360
HIV reverse transcription enzyme. Molecular model of the reverse transcriptase enzyme found in HIV (the human immunodeficiency virus)

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

Haemoglobin molecule F006 / 9356
Haemoglobin, molecular model. Haemoglobin is a metalloprotein that transports oxygen around the body in red blood cells. Each molecule consists of iron-containing haem groups (sticks)

Beta-actin molecule F006 / 9358
Beta-actin. Molecular model of the cytoskeletal protein beta-actin bound to profilin. The cytoskeleton maintains the cells shape

Human prion precursor protein F006 / 9357
Human prion precursor protein, molecular model showing secondary structure. The human prion protein (hPrP) is a prion precursor

Serum transferrin molecule F006 / 9353
Serum transferrin, molecular model. Transferrins are iron-binding glycoproteins found in blood plasma

Oestrogen receptor bound to DNA F006 / 9354
Oestrogen receptor bound to DNA. Molecular model of the DNA-binding domain (green and pink) of the oestrogen receptor bound to a molecule of DNA (deoxyribonucleic acid, blue and orange)

Human growth hormone molecule F006 / 9355
Human growth hormone (hGH), molecular model. hGH is produced in the anterior pituitary gland of the brain. It binds to specific receptors on cells in the body to stimulate growth

Ebola matrix protein molecule F006 / 9352
Ebola matrix protein. Molecular model of the Ebola virus matrix protein VP40 bound to RNA (ribonucleic acid). This membrane-associated protein is thought to be necessary for the assembly

Haemoglobin molecule F006 / 9350
Haemoglobin, molecular model. Haemoglobin is a metalloprotein that transports oxygen around the body in red blood cells. Each molecule consists of iron-containing haem groups (sticks)

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

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

Insulin-like growth 1 factor molecule F006 / 9351
Insulin-like growth factor 1 (IGF-1), molecular model. IGFs are polypeptides that are similar in their molecular structure to insulin

Ribozyme enzyme and RNA F006 / 9346
Ribozyme enzyme and RNA, molecular model. Ribozymes are RNA (ribonucleic acid) molecules that catalyse certain biochemical reactions

Transcription factors bound to DNA F006 / 9349
Transcription factors bound to DNA. Molecular model of the Oct4 (pink) and Sox2 (green) transcription factors bound to a molecule of DNA (deoxyribonucleic acid, red and blue)

GA bacteriophage capsid F006 / 9341
GA bacteriophage capsid, molecular model. Bacteriophages are viruses that infect bacteria, with the capsid forming the bacteriophage head

Heterotrimeric G protein complex molecule F006 / 9344
Heterotrimeric G protein complex molecule. Molecular model of a heterotrimeric G protein complex. This protein has three different subunits (heterotrimer), alpha, beta and gamma

SV40 antigen and tumor suppressor F006 / 9345
SV40 antigen and tumour suppressor. Molecular model of the simian virus (SV40) large T antigen bound to a retinoblastoma tumour suppressor (Rb)

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

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

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The beta sheet, a crucial element in the world of molecular biology and protein structure, plays a significant role in various biological processes. From DNA transcription to HIV reverse transcription enzyme, this secondary structure of proteins is an intricate masterpiece. In the realm of DNA transcription, the beta sheet takes center stage as it assists in unraveling genetic information. Its molecular model showcases its complexity and elegance, resembling an artistic creation that captivates scientists worldwide. Not only does the beta sheet contribute to DNA transcription, but it also plays a vital role in combating diseases. The Hepatitis C virus enzyme's molecular model reveals how this secondary structure aids in understanding and potentially treating this infectious disease. Another remarkable example lies within Manganese superoxide dismutase enzyme F006 / 9423. This intricate arrangement highlights how the beta sheet contributes to antioxidant defense mechanisms within our bodies. Moreover, Argonaute protein molecule F006 / 9526 demonstrates how the beta sheet collaborates with microRNA to regulate gene expression. This interaction holds immense potential for therapeutic interventions targeting various diseases. Immunoglobulin G antibody and egg white F006 / 9682 showcase yet another fascinating aspect of the beta sheet's versatility. Here we witness its involvement in immune responses against foreign substances present within our bodies. Furthermore, Cytochrome P450 complex F006 / 9669 illustrates how this secondary structure enables drug metabolism and detoxification processes essential for maintaining human health. Succinyl-CoA synthetase enzyme F006 / 9592 emphasizes another critical function of the beta sheet: energy production through cellular respiration pathways. Its presence ensures efficient conversion of succinyl-CoA into ATP molecules necessary for sustaining life processes. Additionally, RNA-induced silencing complex F006 / 9586 unveils how the beta sheet participates in gene regulation by suppressing specific mRNA molecules through small interfering RNAs (siRNAs).