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B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background

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.

Avibactam is a diazobicyclooctane inhibitor of gram-negative and gram-positive bacteria. Avibactam (red) inhibits the bacterial enzyme beta-lactamase (blue) of Clostridioides difficile.

Abstract geometric shape

Indoleamine 2,3 dioxygenase 1 (IDO1) protein. Tryptophan catabolic enzyme of the kynurenine pathway. 3D illustration.

DNA A-T Pair

Abstract Pink And Green Knot

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, PDB 6vg8, white background

A ball and stick + ribbons model of HIV protease - an enzyme that is the target of much AIDS and HIV research.

PETase (left) degrades polyethylene terephtalate (PET) into monohydroxyethyl terephthalate (MHET) and MHETase degrades MHET ethylene glycol (EG) and terephthalic acid (TPA). The substrates in the binding sites are depicted in red.

Abstract geometric shape

Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.

Beta-alanine or β-Alanine molecule. It is naturally occurring beta amino acid. Molecular model. 3D rendering. Illustration

Colorful Molecules Background

3D cartoon and Gaussian surface models. PDB 2aai, white background.

A model of a molecule of arginine, an amino acid. Amino acids are the building blocks of proteins and have many functions in metabolism. In particular, Arginine has an important function in the immune system, wound healing and cell division.

Maltose or maltobiose or malt sugar is a disaccharide formed from two units of glucose joined with an alpha bond. 3d illustration

Rendered Remdesivir molecule in 3D, an experimental drug from Gilead, used to cure the first case of 2019-nCoV in the United States (for a patient at Seattle, Washington). The model showed accurate atom connection and stereochemistry, based on the chemical structure available in public space from U.S. National Library of Medicine, which was professionally checked. Color symbols - green=carbon, red=oxygen, blue=nitrogen, white=hydrogen, purple=phosphorus

Botulinum toxin neurotoxic protein, 3D rendering. Produced by Clostridium botulinum. Cosmetically used to treat wrinkles.

Amino Acid Lysine

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.

Spherical molecule render. The model is isolated on white and could be easily extracted as well as used with the background.

3D cartoon and Gaussian surface models, chain id color scheme, PDB 5y0m, white background

A space-filling molecular model of collagen, a fibrous protein that provides structural support in animals. It has a distinctive triple helix structure. Isolated on black.

Remdesivir is a broad-spectrum antiviral medication, it is a specific treatment for COVID-19. 3d illustration

Multi-colored connected spheres building a molecular structure.

Taq polymerase (Thermus aquaticus polymerase) enzyme bound to DNA, 3D rendering. Protein used in PCR (polymerase chain reaction).

Scientific background. 3D render.

Free Images: "bestof:PDB 2h21 EBI.jpg All beta proteins beta-clip SET domain RuBisCo LSMT catalytic domain RuBisCo LSMT catalytic domain RuBisCo LSMT catalytic domain All alpha"

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Frame,_set,_go!.jpg

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Lasioglossum_taylorae,_F,_Back,_MA,_Franklin_County_2015-07-07-11.55.17_ZS_PMax_UDR.jpg

Southern_armyworm,_side_2014-06-04-19.05.49_ZS_PMax.jpg

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Andrena_perplexa,_m,_talbot_co,_face_2015-05-17-15.58.10_ZS_PMax.jpg

Andrena_perplexa,_talbot,_m,_face3_2015-05-17-16.13.02_ZS_PMax.jpg

Coelidiana_undata,_m,_brazil_2016-02-23-11.57.jpg

Grasshopper_nymph,_upper_marlboro_2016-10-23-19.23.jpg

Svastra_obliqua,_m,_back,_Dorchester_Co_2015-12-03-11.21.jpg

Lasioglossum_desertum,_f,_ut,_garfield,_back_2015-06-12-18.59.04_ZS_PMax_UDR.jpg

Lasioglossum_desertum,_f,_ut,_garfield,_face_2015-06-12-19.04.08_ZS_PMax_UDR.jpg

Lasioglossum_taylorae,_F,_Face,_MA,_Franklin_County_2015-07-07-12.07.10_ZS_PMax_UDR.jpg

Megachile_mendica,_m,_face,_prince_george's_co,_md_2016-04-19-10.57.jpg

Megachile_mendica,_m,_side,_prince_george's_co,_md_2016-04-19-11.11.jpg

Osmia_georgica,_m,_right_side,_Maryland_2016-06-27-18.10.jpg

Lasioglossum_taylorae,_F,_Side,_MA_Franklin_County_2015-07-07-12.48.53_ZS_PMax_UDR.jpg

bee_species_cutout_antennae,_m,_mexico,_face_2014-08-08-11.50.35_ZS_PMax.jpg

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Andrena_carlini,_m,_side,_2016-04-05-13.22.jpg

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Fluorite,_Helen_Folger,_with_foil_2015-08-07-17.50.41_ZS_PMax_UDR.jpg

Hylaeus_sp,_F,_Face,_Puerto_Rico,_Yauco_2015-01-30-14.36.57_ZS_PMax.jpg

Nomia_omanomano,_m,_oman,_face_2014-08-09-19.26.02_ZS_PMax.jpg

Hylaeus_sp,_F,_Side,_Puerto_Rico,_Yauco_2015-01-30-14.48.33_ZS_PMax.jpg

Phrictus_diadema,_brazil_2016-02-23-20.09.jpg

Andrena,_carlini,_m,_2016-04-05-12.16.jpg

Velvet_Ant,_face,_Badlands,_Pennington_Co,_SD_2013-12-31-14.25.jpg

Stalactites_Stalagmites,_End,_VT,_Jefferson_Memorial_2015-08-07-12.12.07_ZS_PMax_UDR.jpg

South America - Blue Marble orthographic.jpg

Coelioxoides_waltheriae,_f,_peru,_side_2014-08-09-11.10.33_ZS_PMax.jpg

Lasioglossum_lilliputense,_F,_Face,_WY,_Teton_County_2015-06-08-15.30.48_ZS_PMax.jpg

Hylaeus_verticalis,_M,_side,_Michigan,_Keweenaw_County_2014-11-25-10.56.jpg

Osmia_trevoris,_F,_Park_Co.,_Wyoming,_face_2015-11-20-23.57.28_ZS_PMax_UDR.jpg

Osmia_trevoris,_F,_Park_Co.,_Wyoming,_side_2015-11-21-00.15.51_ZS_PMax_UDR.jpg

(beetle),_Back,_Judelot_Farm,_Maryland_2014-10-20-14.30.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

bee_species,_f,_side,_argentina_2014-08-07-15.38.54_ZS_PMax.jpg

Ancyloscelis_ursinus,_m,_side,_paraguay_2014-08-06-15.41.34_ZS_PMax.jpg

Edwyniana_near_flavicornis,_f,_00605f08,_face,_chile_2014-08-04-15.50.28_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

bee_fur_foot_yellowspot,_f,_argentina,_angle_2014-08-14-14.58.46_ZS_PMax.jpg

ant,_dod,_pomonkey_2015-05-24-19.10.54_ZS_PMax.jpg

Ceratina_nr_dentipes,_female,_side_2012-06-13-16.21.jpg

Lasioglossum_pavonotum,_F,_Side,_CA,_Humboldt_County_2015-01-27-17.51.56_ZS_PMax.jpg

centepede_2015-04-16-09.57.17_ZS_PMax.jpg

Lasioglossum_pavonotum,_F,_Face,_CA,_Humboldt_County_2015-01-27-17.31.17_ZS_PMax.jpg

Melissodes_apicata,_f,_side,_Maine,_Du_Clos_2015-12-01-17.01.jpg

Lasioglossum_seillean,_F,_side,_New_Hampshire,_Coos_County_2015-10-13-13.40.jpg

Coelioxoides_waltheriae,_f,_peru,_face_2014-08-09-10.59.51_ZS_PMax.jpg

Ceratina_tricolor,_f,_panama,_back_2014-08-29-15.54.43_ZS_PMax.jpg

bee_big_3_color,_m,_india,_face_2014-08-10-06.57.35_ZS_PMax.jpg

Velvetbean_caterpillar,_side_2014-06-04-19.10.53_ZS_PMax.jpg

Andrena_nubecula,_F,_Face_ammonia,_MD,_Anne_Arundel_County_2014-02-21-17.13.59_ZS_PMax.jpg

Stelis_louisae,_M,_Back1,_MD,_Dorchester_County_2015-09-22-13.00.30_ZS_PMax_UDR.jpg

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