Bio Chemistry Collection

Computer screen showing a human genetic sequence
DNA sequencing. Computer screen showing a sequence of base pairs forming part of the human genetic code. The three billion base pairs that form the genetic code of human DNA (deoxyribonucleic acid)

DNA transcription, molecular model. Secondary structure of the enzyme RNA polymerase II synthesising a mRNA (messenger ribonucleic acid, lilac) strand from a DNA (deoxyribonucleic acid)

Caffeine crystals, light micrograph
Caffeine crystals. Polarised light micrograph of crystals of caffeine (1, 3, 7-trimethylxanthine). Caffeine stimulates the central nervous system increasing alertness and deferring fatigue

Double-stranded RNA molecule. Computer model of the structure of double-stranded RNA (ribonucleic acid). The majority of RNA in a cell is in the single-stranded form

DNA molecule, computer artwork. DNA (deoxyribonucleic acid) is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone attached to nucleotide bases

DNA molecule. Computer artwork of a molecule of DNA (deoxyribonucleic acid) with the chemical formulas of its components. DNA is composed of two sugar-phosphate backbones (blue)

Watson and Crick, DNA discovers
Watson and Crick. Caricature of the molecular biologists and discoverers of the structure of DNA James Watson (born 1928, left) and Francis Crick (1916-2004), with their model of a DNA molecule

Isaac Asimov, US author and biochemist
Isaac Asimov. Caricature of the Soviet-born American science fiction writer and biochemist Isaac Asimov (1920-1992). Asimov is best known for his science fiction novels and popular science books

Metabolic enzyme, artwork
Metabolic enzyme. Computer artwork of aconitase (blue), in complex with ferritin messenger ribonucleic acid (mRNA, red). Aconitase is involved in the citric acid cycle but here it is performing a

Secondary structure of proteins, artwork
Secondary structure of proteins, computer artwork. The secondary structure is the shape taken by the strands of proteins, which are biological polymers of amino acids

Brain protein research. Computer artwork of a brain and coloured dots from a protein microarray. Protein microarrays can be used to follow protein interactions

Computer artwork of a beta DNA segment and spheres
DNA molecule. Computer artwork of part of a strand of beta DNA (deoxyribonucleic acid) seen on a background of spheres. The spheres may represent bacteria

Nucleotide base matrix. Computer artwork depicting a matrix of nucleotide bases: adenine (A), cytosine (C), guanine (G) and thymine (T)

DNA molecule, computer model
DNA molecule. Computer artwork of the molecular structure of DNA (deoxyribonucleic acid). The DNA molecule is composed of two strands twisted into a double helix

Nucleosome molecule, computer model. A nucleosome is a subunit of chromatin, the substance that forms chromosomes. It consists of a short length of DNA (deoxyribonucleic acid)

DNA molecule, abstract image
DNA molecule. Abstract computer artwork of a view along the inside of a molecule of DNA (deoxyribonucleic acid). DNA contains sections called genes that encode the bodys genetic information

DNA nucleosome, molecular model
DNA nucleosome. Molecular model of a nucleosome, the fundamental repeating unit used to package DNA (deoxyribonucleic acid) inside cell nuclei

Oxytocin crystals, light micrograph
Oxytocin. Polarised light micrograph of crystals of the female hormone oxytocin. In women this hormone is secreted naturally by the pituitary gland

DNA molecule, artwork
DNA molecule. Computer artwork of a double stranded DNA (deoxyribonucleic acid) molecule amongst clouds of swirling gas. DNA is composed of two strands twisted into a double helix

Caffeine drug molecule
Caffeine. Computer model of a molecule of the alkaloid, stimulant and legal drug caffeine. Caffeine is most often consumed in drinks like tea and coffee

Bacterial ribosome. Computer model showing the secondary structure of a 30S (small) ribosomal sub-unit from the bacteria Thermus thermophilus

HIV reverse transcription enzyme. Molecular models of the reverse transcriptase enzyme found in HIV (the human immunodeficiency virus)

Hepatitis C virus enzyme, molecular model
Hepatitis C virus enzyme. Molecular model of a genetic enzyme from the Hepatitis C virus. This enzyme is called HC-J4 RNA polymerase

Glutamine synthetase enzyme computer model. This is a ligase enzyme, which forms chemical bonds between molecules. The different colours show the different subunits that comprise the protein

Creatine amino acid molecule
Creatine, molecular model. This amino acid acts as an energy store for the contraction of muscle. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white)

Cortisol crystals, light micrograph
Cortisol crystals, polarised light micrograph. Cortisol is a steroid hormone produced by the adrenal glands, which sit on top of the kidneys

Vitamin B12, molecular model. Vitamin B12 (cyanocobalamin) is an essential nutrient that humans are unable to produce and need to obtain from their diet

Rosalind Franklin, British chemist
Rosalind Franklin (1920-1958), British chemist and X-ray crystallographer, holding a model of DNA (deoxyribonucleic acid)

DNA autoradiogram, artwork. Autoradiograms show the order of nucleotide bases (basic building blocks) in a sample of DNA (deoxyribonucleic acid)

Computer artwork of DNA replication
DNA replication. Computer artwork depicting DNA (deoxyribonucleic acid) replication. This segment of DNA is being " unzipped" to form a Y-shaped replication fork

DNA Double Helix with Autoradiograph
Conceptual computer illustration of the DNA double helix together with a graphic representation of an autoradiograph display

Capsaicin molecule
Capsaicin, molecular model. This chemical gives chilies their heat and causes a burning sensation when ingested. It is a secondary metabolite of the chili plant (Capsicum sp)

Oxytocin neurotransmitter molecule. Computer model showing the structure of the neurotransmitter and hormone Oxytocin. Atoms are colour-coded spheres (carbon: dark grey, hydrogen: light grey)

Januvia diabetes drug molecule
Januvia diabetes drug, molecular model. Januvia (sitagliptin) is a hypoglycaemic drug, one that reduces blood sugar levels

Praziquantel parasite drug. Computer model of a molecule of the drug praziquantel. Atoms are represented as spheres and are colour-coded; carbon (pink), hydrogen (white)

Interferon molecule. Computer model showing the secondary structure of a molecule of interferon. Interferons are proteins produced by white blood cells as part of the immune response to invading

Grapevine genome sequencing. Data from a gelelectrophoresis experiment to sequence the PinotNoir grape ( Vitis sp. ) genome

Vioxx drug molecule
Vioxx. Molecular model of the non-steroidal anti-inflammatory drug rofecoxib, which was marketed as Vioxx. This drug was withdrawn from use in 2004 due to concerns over increased heart attack

Levofloxacin antibiotic molecule
Levofloxacin antibiotic, molecular model. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (dark blue), oxygen (red) and fluorine (light blue)

Caffeine, molecular model. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (green), oxygen (red) and nitrogen (blue)

Shared DNA in humans and chimps, art
Shared DNA between humans and chimps, conceptual artwork. The humans look surprised to see the chimp so close to them in the double helix of DNA (deoxyribonucleic acid)

Mitochondrial DNA. Computer artwork of the genetic material (DNA, deoxyribonucleic acid) found in the cell structures called mitochondria

DNA analysis, negative image. Graphs showing the results of DNA (deoxyribonucleic acid) sequencing. A DNA molecule consists of two sugar-phosphate backbones, arranged as a double helix

Vinegar production, 19th century cutaway artwork. This is a trickling method developed in 1823 by the German chemist Schutzenbach. The barrel is divided into three sections

Collagen synthesis and assembly, artwork. At left is a fibroblast, the cell that synthesises helical protein chains of collagen (wavy lines)

Nerve damage and stem cells, artwork
Nerve damage and stem cells, computer artwork. Stem cells are undifferentiated cells that can produce other types of cell when they divide

Cholera toxin, molecular model
Cholera toxin. Molecular model of the secondary structure of cholera enterotoxin (intestinal toxin). The molecule consists of two subunits, A (top) and B (bottom)

Progesterone hormone
Polarised light micrograph of crystals of progesterone. X 40

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Biochemistry is the captivating realm where science and life intertwine, revealing the intricate secrets of our existence. As I gaze at the computer screen displaying a mesmerizing human genetic sequence, I am reminded of the boundless potential encoded within each double-stranded RNA molecule. The elegant dance of DNA transcription unfolds before my eyes, its molecular model illuminating the blueprint of life itself. In another corner, caffeine crystals come to life under a light micrograph, reminding us that even in our daily rituals lies an underlying biochemical symphony. The iconic DNA molecule stands tall as a symbol of discovery and progress, thanks to the pioneering work of Watson and Crick who unraveled its mysteries. Isaac Asimov's brilliance shines through as we acknowledge his contributions not only as a renowned US author but also as a biochemist who bridged literature with scientific exploration. Artistic renditions capture the beauty and complexity of metabolic enzymes and secondary structures of proteins, showcasing nature's ingenuity at every turn. The quest for knowledge extends into brain protein research; unlocking these enigmatic molecules could hold answers to understanding neurological disorders that plague humanity. A stunning computer artwork reveals beta DNA segments intertwined with spheres like celestial bodies orbiting their own gravitational pull - an awe-inspiring representation of interconnectedness on both macroscopic and microscopic scales. Amidst it all lies the nucleotide base matrix - an intricate web connecting all living beings across time and space. Biochemistry beckons us to explore this matrix further; deciphering its language holds profound implications for medicine, agriculture, biotechnology, and beyond. In this captivating world where science meets life's building blocks, biochemistry invites us to unravel nature's deepest secrets while inspiring wonderment at every step along this remarkable journey.