Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
A ball and stick model of a molecule of Human Interferon. Interferons are proteins important in the working of the immune system and are produced in large numbers in the presence of viruses, bacteria, tumors and parasites.  Interferons are used in drugs to combat cancer, multiple sclerosis, hepatitis B and C and other diseases. Isolated on white.
3D cartoon and Gaussian surface models, PDB 6vg8, white background
Immunoglobulin G (IgG) - 3d rendered image. Microbiology illustration  the structure of an antibody. The Y-shaped structure. IgG is the most common type of antibody.
Calreticulin, a protein which binds to misfolded proteins and prevents them from being exported from the endoplasmic reticulum to the Golgi apparatus. 3d rendering.
Neuroendocrine carcinoma well differentiated (carcinoid) rectum with immunostain synaptophysin
Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.
Abstract geometric shape
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
In vitro bacterial culture
Ferritin is a protein that contains iron and is the primary form of iron stored inside of cells. 3D cartoon model, PDB 4y08, white background
Abstract green and blue spheres arranged in lines.
3D model of a protein molecule. Endothelial tyrosine kinase receptor, a marker of angiogenesis.
Organic objects form a triangle. Artificial space incorporating organic materials.\nThis work was policy within one month. It is also an original work for this brief and cannot be used elsewhere.
3D CG rendered image of scientifically accurate Enterobacteria Bacteriophage phiX174 Capsid Structure based on PDB : 1CD3 (capsomere)
Hand Holds Petri Dish with Bacteria Culture
6 different proteins build up the structure of the influenza virus. The red helicoidal line is the RNA with the genetic information of the virus. 500 molecules of hemagglutinin and 100 molecules of neuraminidase are distributed over the surface of the virus.
In vitro bacterial culture
3D cartoon and Gaussian surface models, PDB 2zva, white background
Abstract geometric shape
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
DNA A-T Pair
Botulinum toxin neurotoxic protein, 3D rendering. Produced by Clostridium botulinum. Cosmetically used to treat wrinkles.
Candida is the most common fungal pathogen, with Candida albicans and Candida tropicalis accounting for 90% of the infections.
A new antibiotic (zosurabalpin, red) traps lipopolysaccharide (orange) in the intermembrane transporter of the Gram-negative bacterium Acinetobacter baylyi
In vitro bacterial culture
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.
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Cholera toxin, molecular model. Cholera toxin (choleragen) is a protein complex secreted by the bacterium Vibrio cholerae, that causes the disease cholera. It is made up of a wedge-shaped A subunit (right part of illustration) and five B subunits (left part of illustration) that form a ring which binds to the intestinal lining. In its most severe forms, cholera is one of the most rapidly fatal illnesses known.
Inside protein molecule
Free Images: "bestof:PBB Protein ACTA1 image.jpg www pdb org en wikipedia 2007-11-01 ProteinBoxBot wikipedia en PD-author original upload log page en wikipedia PBB_Protein_ACTA1_ima..."
RobertCornelius.jpg
Making Death Mask Edit 4.jpg
Summer_Lake_Wildlife_Refuge,_Oregon_(sandhill_cranes).jpg
David_-_Napoleon_crossing_the_Alps_-_Malmaison1_detail1.jpg
Philadelphia skyline sunset.jpg
Common duiker kenya.jpg
Poipu Beach.jpg
SC195_Molina_and_Johnson.jpg
RenCen.JPG
Corsehillmuirroundel.JPG
Computer_keyboard.png
Child riding tortoise.jpg
Sosua beach.jpg
Bee pollinating a flower.jpg
Baroque_Rubens_Assumption-of-Virgin-3.jpg
CalvaryCemeteryQueens edit.jpg
Alex Riel photo by Gorm Valentin A1.jpg
BraceroProgram.jpg
Pygmy Goat At Las Vegas Zoo.JPG
Entombment_Michelangelo.jpg
British_L85A2.JPEG
Gristmill_Hopper_1938.gif
Zamor_portrait_by_Lemoine.jpg
Mission Beach regulations.jpg
Oriental hybrid1.jpg
FieldsMedalFront.jpg
Brilliant sunset.jpg
Raageshwari 5.jpg
Arromanches beach 2.jpg
F-18F_after_launch_from_USS_Abraham_Lincoln_(CVN-72).jpg
Florence_Owens_Thompson_montage_by_Dorothea_Lange.jpg
BOBGrindlewald.JPG
Miami Beach port with coast guard ships.jpg
Agraffebridge.jpg
Giverny.jpg
WildlifeHamilton.JPG
Kastania sunset.JPG
Gadiara Sunset.JPG
Sunset July 08 050.JPG
Sunset Juan Griego.JPG
Crabtree Falls 4.JPG
Lake Conjola at sunset.JPG
Sunset Acapulco.jpg
Black carpenter ant.jpg
Lake DeFuniak Sunset.JPG
IMG Lily Ponds.JPG
Sunrise on the Skyline.JPG
Sandspit River Sunset.jpg
Otvane Wildlife Animal 10.JPG
Chalet View 4.jpg
Tanah Lot sunset.jpg
AucklandZoo.1035.JPG
Crabtree Falls 11.JPG
Champagne Beach.jpg
New Forest ponies.jpg
Alex Martinez - baseball - UCLA Bruins.jpg
SoccerPark main.jpg
Patagonian Cavy.jpg
Sandspit Sunset 9-5-09.jpg
Lizard body art.jpg
WildlifeArea and Clock-Tower P1010031.JPG
Japanese_American_Internment_Center.jpg
Clifford's Tower-2007 1.jpg
AucklandZoo.1005.JPG
AucklandZoo.1019.JPG
Canon-HV30-front-left.jpg
Manly Beach and water.jpg
Sunrise Beach Boulevard.JPG
Soccer shcs.jpg
Otvane Wildlife 025.JPG
Otvane Wildlife 022.JPG
Otvane Wildlife 021.JPG
Otvane Wildlife 020.JPG
Otvane Wildlife 019.JPG
Otvane Wildlife 018.JPG
Otvane Wildlife 017.JPG
Otvane Wildlife 015.JPG
Eigergletscher Railway Station 2.JPG
Beach at Clarach Bay.JPG
Mother duck with chicks.jpg
Wildebeest (White Bearded).jpg
Sunrise Street Apr 09.JPG
Brickell Station.jpg
Virginia Beach dune.jpg
Marin Civic Center interior.jpg
TechnocracySign.gif
Arlington National Cemetery 2012.jpg
Dillon Beach, CA in Marin County.jpg
Corsehillmuirpath.JPG
Lawthornswt.JPG
Lawthornswtboardwalk.JPG
Otvane Wildlife Animal 15.JPG
Otvane Wildlife Animal 14.JPG
Otvane Wildlife Animal 12.JPG
Otvane Wildlife Animal 05.JPG
Otvane Wildlife Animal 03.JPG
Caerulea3 crop.jpg
Zenaida macroura pair.jpg
Palm Beach NSW.jpg
Hendrys Beach.JPG
Terms of Use   Search of the Day