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A carboxypeptidase is a protease enzyme that hydrolyzes a peptide bond at the carboxy-terminal end of a protein or peptide. 3D cartoon model, secondary structure color scheme, PDB 2v77, white background.
DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
A ball and stick + ribbons model of human Interleukin 2 or IL-2. Interleukin is a hormone which acts as a signalling molecule for the immune system.
DNA with biology and chemical concept, 3d rendering. Digital drawing.
Molecular Model of Human Insulin with disulfide bonds shown.
Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.
Chain of Amino Acid. Proteins consist of one or more chains of amino acids called polypeptides
3D cartoon model, PDB 5zi1, secondary structure color scheme, white background.
DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology.
The human immunodeficiency virus single-stranded RNA genome is converted into double-stranded DNA by the viral reverse transcriptase and then the DNA is integrated in the DNA of an infected human cell. The reverse transcriptase is one of the main targets to disrupt the virus multiplication through an inhibitor. There are nucleoside and nucleotide inhibitors and non nucleoside analogue inhibitors.
DNA and biotechnology concept
A ball-and-stick plus ribbons molecular model of the hormone Orexin, also known as Hypocretin.  Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease.  Isolated on white.
DNA and biotechnology concept, 3d rendering. Computer digital drawing.
DNA mutation, a mutation is a change in a DNA sequence, mutations can result from DNA copying mistakes made during cell division.
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
Chain of amino acid or bio molecules called protein - 3d illustration
DNA strands. Double helix structure. Biotechnology and medical concept. Isolated on the white background.
3D cartoon and Gaussian surface models, PDB 7s03, white background
Wireframe double helix DNA
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
DNA.Computer generated abstract background.
DNA with biology and chemical concept, 3d rendering. 3D illustration.
DNA. Concept. 3D Render
3d helix chromosome or Dna structure, technology science background. 3d render illustration
DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology. Hologram view. HUD, FUI, SEM
Chain of amino acid or biomolecules called protein - 3d illustration
3D rendered part of a DNA chain on a black background with a copy space for scientific designs
A GTP-bound G-alpha protein (blue) binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.
DNA Molecule: a 3D illustration of the double helix structure reflecting the genetic code. This 3D illustration is a visualization of the DNA molecule showing its characteristic double helix structure. The model reflects the major components of DNA such as the nitrogenous bases (adenine, thymine, guanine, and cytosine), sugars, and phosphate groups that together form the genetic code. This illustration can be used for educational purposes, scientific publications or medical advertising to demonstrate the complexity and beauty of the molecule responsible for heredity and the development of life on Earth.
Free Images: "bestof:PDB 2ay0 EBI.png All alpha proteins Ribbon-helix-helix Ribbon-helix-helix PutA pre-N-terminal region-like Bifunctional protein putA EBI License 2ay0 June 5 2009"
Toledo,_Peoria_&_Western_depot_at_La_Harpe,_IL.jpg
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World Organization of the Scout Movement-Eurasian Region purple.svg
World Organization of the Scout Movement-Eurasian Region.svg
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