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A ball and stick model of Human Insulin. Isolated on black.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
Gamma secretase protein complex. Multi-subunit intramembrane protease that plays role in processing of proteins. 3D illustration.
Abstract geometric shape
3D cartoon and Gaussian surface models. PDB 2aai, white background.
DNA A-T Pair
Cytochrome P450 molecule. CYP 3A4 is the most promiscuous of the human CYP enzymes. Molecular model. 3D rendering. Illustration
Background created by fractal geometry.
Low-Fiber Diet Risks Gut Health & Allergies
A ribbons model of Human Growth Hormone, also known as Somatotropin, with a translucent surface model.
Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria.  Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.
Render of molecule in hi-key
3D cartoon and Gaussian surface models, PDB 3hg3, white background
Molecular Model of Human Insulin with disulfide bonds shown.
Botulinum toxin neurotoxic protein, 3D rendering. Produced by Clostridium botulinum. Cosmetically used to treat wrinkles.
Background created by fractal geometry.
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.
A ball-and-stick 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.
Proteasomes are large molecular machines that degrade unneeded or damaged proteins that have been tagged with polyubiquitin.
Rendered coronavirus/2019-nCoV single-stranded RNA, built from experimentally determined Ebola virus crystal structure. Color symbols - bluewhite=carbon, pink=oxygen, lightblue=nitrogen, white=hydrogen, lavender=phosphorus
3D cartoon and Gaussian surface models, chain id color scheme, PDB 4ci9, white background
Molecular Model of Human Insulin with disulfide bonds shown.
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Background created by fractal geometry.
The DNA tetrahedron is designed to be mechanically robust; it consists of rigid triangles of DNA helices covalently joined at the vertices
A ball and stick + ribbons model of Bowman-Birk Protease Inhibitor, more commonly abbreviated to BBI. It is used clinically to treat and help prevent cancer.
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
Colorful Molecules Background
3D cartoon and Gaussian surface models, PDB 1j7n, chain id color scheme, white background
Molecular Model of Cyclosporine, an immunosuppressant drug widely used in organ transplantation to prevent rejection.
Free Images: "bestof:PDB 1tl9 EBI.jpg Alpha and beta proteins a+b Cysteine proteinases Cysteine proteinases Calpain large subunit catalytic domain domain II Calpain large subunit"
Ctenocolletes_smaragdinus,_f,_australia,_side_2014-08-08-13.53.31_ZS_PMax.jpg
Rophitulus_species,_angle,_brazil_2014-08-06-09.51.24_ZS_PMax.jpg
Rophitulus_species,_face,_brazil_2014-08-06-10.08.10_ZS_PMax.jpg
Hyleoides_concinna.jpg
Megachile_albisecta,_F,_Side,_Greece,_Aegean_Islands,_Lesvos,_Mytilene_2015-03-10-12.09.24_ZS_PMax.jpg
Megachile_albisecta,_F,_Back,_Greece,_Aegean_Islands,_Lesvos,_Mytilene_2015-03-10-11.45.31_ZS_PMax.jpg
Megachile_albisecta,_F,_Face,_Greece,_Aegean_Islands,_Lesvos,_Mytilene_2015-03-10-11.55.11_ZS_PMax.jpg
Rophitulus_species,_side,_brazil_2014-08-06-10.20.38_ZS_PMax.jpg
Ctenocolletes_smaragdinus,_f,_australia,_angle_2014-08-08-13.42.59_ZS_PMax.jpg
Ctenocolletes_smaragdinus,_f,_australia,_face_2014-08-08-13.48.25_ZS_PMax.jpg
exaerete_frontalis,_back,_guyana_2014-06-18-17.19.27_ZS_PMax.jpg
Hoplitis_tigrina,_M,_Side,_Greece,_Aegean_Islands,_Lesvos,_Sisil_2015-02-16-17.09.jpg
Hoplitis_tigrina,_M,_Back,_Greece,_Aegean_Islands,_Lesvos,_Sisil_2015-02-16-16.42.47_ZS_PMax.jpg
Hoplitis_tigrina,_M,_Face,_Greece,_Aegean_Islands,_Lesvos,_Sisil_2015-02-16-16.50.31_ZS_PMax.jpg
Diphaglossa_gayi,_f,_face,_chile_2014-08-04-18.05.47_ZS_PMax.jpg
Osmia_simillima,_side_2012-06-18-17.42.jpg
Megachile_inermis,_female,_right_side_2012-07-13-18.00.jpg
Velvet_Ant,_side,_Badlands,_Pennington_Co,_SD_2013-12-31-14.13.37_ZS_PMax.jpg
Velvetbean_caterpillar,_side_2014-06-04-19.10.53_ZS_PMax.jpg
Megalopta_genalis,_M,_back,_panama,_barocolorado_2014-09-19-16.42.09_ZS_PMax.jpg
Megalopta_genalis,_M,_side,_panama,_barocolorado_2014-09-19-16.57.54_ZS_PMax.jpg
Megalopta_genalis,_M,_face,_panama,_barocolorado_2014-09-19-16.49.39_ZS_PMax.jpg
velvetbean_caterpillar,_headside_2014-06-04-21.41.54_ZS_PMax.jpg
velvetbean_caterpillar,_eggs_2014-06-06-14.48.01_ZS_PMax.jpg
Megachile_latimanus,_left_side_2012-07-13-18.27.jpg
Megachile_inermis,_female,_back_2012-07-13-17.42.jpg
velvetbean_caterpillar,_moth,_side_face_2014-06-06-11.56.39_ZS_PMax.jpg
Svastra_obliqua,_f,_face,_md,_kent_county_2014-07-22-09.42.41_ZS_PMax.jpg
Svastra_obliqua,_f,_side,_md,_kent_county_2014-07-22-09.46.48_ZS_PMax.jpg
velvetbean_caterpillar_pupae,_side_2014-06-04-21.16.17_ZS_PMax.jpg
Svastra_obliqua,_f,_back,_md,_kent_county_2014-07-22-09.36.07_ZS_PMax.jpg
Hyleoides_concinna,_m,_australia,_side_2014-08-10-10.44.37_ZS_PMax.jpg
Hyleoides_concinna_huge,_m,_australia,_angle_2014-08-10-10.21.30_ZS_PMax.jpg
Megachile_latimanus,_partial_side_2014-07-01-13.21.54_ZS_PMax.jpg
Phrictus_ocellatus,_venezuala_2016-02-23-20.58.jpg
Andrena_illini,_f,_side,_Somerset_Co,_MD_2016-03-16-12.51.jpg
Megachile_albitarsis,_f,_back,_Chambers_co,_Texas_2016-07-27-17.29.jpg
Lasioglossum_packeri,_F,_Back,_WY,_Park_County_2015-06-08-16.18.07_ZS_PMax.jpg
Andrena_carlini,_f,_back,_Cecil_Co._Maryland_2016-03-29-14.03.jpg
Megachile_albitarsis,_f,_side,_Chambers_co,_Texas_2016-07-27-17.52.jpg
Hylaeus_basilis,_M,_Face,_Michigan,_Keweenaw_Co_2014-11-20-08.53.jpg
Melissodes_confusa,_F,_Side,_UT,_Garfield_County_2014-06-17-17.09.jpg
Andrena_illini,_f,_back,_Somerset_Co,_MD_2016-03-16-12.00.jpg
Megachile_latimanus,_m,_back,_Maine,_Du_Clos_2015-12-01-15.56.jpg
Andrena_carlini,_f,_face,_Cecil_Co._Maryland_2016-03-29-14.22.jpg
Andrena_illini,_f,_face,_Somerset_Co,_MD_2016-03-16-12.35.jpg
Megachile_latimanus,_m,_face,_Maine,_Du_Clos_2015-12-01-16.08.jpg
Megachile_sculpturalis,_female,_back_2012-07-12-17.20.jpg
Diphaglossa_gayi,_f,_side,_chile_2014-08-04-18.17.33_ZS_PMax.jpg
Washed_Megachile,_f,_face,_chile_2014-08-06-10.34.14_ZS_PMax.jpg
Halictus_brunnescens,_M,_Side,_Greece,_Aegan_Islands,_Lesvos,_Mytilene_2015-03-06-11.12.16_ZS_PMax.jpg
Halictus_brunnescens,_M,_Face,_Greece,_Aegan_Islands,_Lesvos,_Mytilene_2015-03-06-10.59.55_ZS_PMax.jpg
Halictus_brunnescens,_M,_Back,_Greece,_Aegan_Islands,_Lesvos,_Mytilene_2015-03-06-10.48.42_ZS_PMax.jpg
velvetbean_caterpillar,_headside_2014-06-04-21.41.54_ZS_PMax.jpg
velvetbean_caterpillar,_moth,_face_2014-06-06-11.38.10_ZS_PMax.jpg
velvetbean_caterpillar,_moth,_back_2014-06-06-11.21.58_ZS_PMax.jpg
amegilla,_m,_australia,_back_2014-11-01-23.39.08_ZS_PMax.jpg
xylocopa_pop_green,_f,thailand,_wing_2014-08-14-21.44.37_ZS_PMax.jpg
xylocopa_pop_green,_f,thailand,_angle_2014-08-14-20.15.14_ZS_PMax.jpg
velvetbean_caterpillar,_moth,_side_face_2014-06-06-11.56.39_ZS_PMax.jpg
xylocopa_pop_green,_f,thailand,_side_2014-08-14-20.29.26_ZS_PMax.jpg
xylocopa_pop_green,_f,thailand,_wing2_2014-08-14-22.06.38_ZS_PMax.jpg
Hoplitis_spoliata,_male,_side,_NY,_Franklin_Co_2014-07-01-12.50.46_ZS_PMax.jpg
Triepeolus_concavus,_M,_side,_Dorchester_Co,_MD_2015-09-01-12.34.25_ZS_PMax_UDR.jpg
Triepeolus_concavus,_M,_back,_Dorchester_Co,_MD_2015-09-01-11.47.37_ZS_PMax_UDR.jpg
Svastra_atripes_atrimitra,_F,_Side,_GA,_Baker_County_2015-01-09-17.01.53_ZS_PMax.jpg
amegilla,_m,_australia,_side_2014-11-01-23.56.03_ZS_PMax.jpg
amegilla,_m,_australia,_face_2014-11-01-23.45.37_ZS_PMax.jpg
amegilla,_m,_australia,_under_2014-11-02-00.00.47_ZS_PMax.jpg
Anthophora_crinipes,_F,_Back,_Greece,_Aegean_Islands_2014-12-09-12.18.06_ZS_PMax.jpg
Meganomia_sp,_m,_south_africa,_side_2014-10-11-18.12.03_ZS_PMax.jpg
Megachile_sculpturalis,_f,_back,_md,_kent_county_2014-07-21-12.24.59_ZS_PMax.jpg
Hoplitis_spoliata,_male,_face,_NY,_Franklin_Co_2014-07-01-12.32.21_ZS_PMax.jpg
Megachile_sculpturalis,_f,_face,_md,_kent_county_2014-07-21-17.11.43_ZS_PMax.jpg
Martinapis_luteicornis,_M,_face,_Wilcox,_AL_2015-11-03-18.17.13_ZS_PMax_UDR.jpg
Triepeolus_concavus,_M,_face,_Dorchester_Co,_MD_2015-09-01-12.11.29_ZS_PMax_UDR.jpg
Svastra_atripes_atrimitra,_F,_Back,_GA,_Baker_County_2015-01-09-16.45.29_ZS_PMax.jpg
Svastra_atripes_atrimitra,_F,_Face,_GA,_Baker_County_2015-01-09-16.51.37_ZS_PMax.jpg
Anthophora_crinipes,_F,_Side,_Greece,_Aegean_Islands_2014-12-09-13.14.07_ZS_PMax.jpg
Megachile_campanulae,_male,_face_2012-07-06-18.26.jpg
Megachile_campanulae,_male,_underside_head_2012-07-06-18.44.jpg
Meganomia_sp,_m,_south_africa,_face_2014-10-11-18.08.09_ZS_PMax.jpg
Megachile_albitarsis,_f,_face,_chambers_co,_Texas_2016-07-27-17.38.jpg
Triepeolus_sp101,_m,_face,_Cochise_Co.,_AZ_2016-09-30-18.01.jpg
Triepeolus_sp101,_m,_right,_Cochise_Co.,_AZ_2016-09-30-18.10.jpg
Martinapis_luteicornis,_M,_side,_Wilcox,_AL_2015-11-03-18.47.45_ZS_PMax_UDR.jpg
Dianthidium_parkeri,_back,_Cochise_Co.,_AZ_2016-09-20-10.59.jpg
Dianthidium_parkeri,_right,_Cochise_Co.jpg
Dianthidium_parkeri,_face,_Cochise_Co.,_AZ_2016-09-20-11.13.jpg
bee_bright_geeen,_m,_argentina,_angle_2014-08-07-16.59.52_ZS_PMax.jpg
Phenocolletes_,_f,_australia,_face_2014-10-11-19.59.10_ZS_PMax.jpg
bee_bright_geeen,_m,_argentina,_face2_2014-08-07-17.21.49_ZS_PMax.jpg
Phenocolletes_,_f,_australia,_back_2014-10-11-19.55.14_ZS_PMax.jpg
bee_bright_geeen,_m,_argentina,_side_2014-08-07-17.43.37_ZS_PMax.jpg
Phenocolletes_,_f,_australia,_side_2014-10-11-20.11.36_ZS_PMax.jpg
melecta_pacifica,_f,_md,_pg,_back_2015-05-14-09.29.37_ZS_PMax.jpg
Melecta_pacifica,_f,_face,_Prince_Georges_county_2015-05-14-09.13.54_ZS_PMax.jpg
Melanempis_scoliiformis,f,_madagascar,_side_2014-10-11-18.34.56_ZS_PMax.jpg
bee_09856e08,m,_thailand,_angle_2014-08-09-11.19.21_ZS_PMax.jpg
melecta_pacifica,_f,_side,_md,_pg_2015-05-14-09.54.48_ZS_PMax.jpg
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