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| Product | Description | |
|---|---|---|
| photosystem I | Contains chlorophyll, phylloquinones, carotenoids and [4Fe-4S] clusters.Cytochrome c6 can act as an alternative electron donor, and flavodoxin as an alternative acceptor in some species. Group: Enzymes. Enzyme Commission Number: EC 1.97.1.12. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1691; photosystem I; EC 1.97.1.12. Cat No: EXWM-1691. |  |
| photosystem II | Contains chlorophyll a, β-carotene, pheophytin, plastoquinone, a Mn4Ca cluster, heme and non-heme iron. Four successive photoreactions, resulting in a storage of four positive charges, are required to oxidize two water molecules to one oxygen molecule. Group: Enzymes. Enzyme Commission Number: EC 1.10.3.9. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-0487; photosystem II; EC 1.10.3.9. Cat No: EXWM-0487. | |
| 2,6-Dimethylbenzoquinone | 2,6-Dimethylbenzoquinone (2,6-DMBQ) is a quinone compound that can accept photosynthetic electrons downstream of photosystem II [1]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: 2,6-DMBQ. CAS No. 527-61-7. Pack Sizes: 100 mg. Product ID: HY-W015816. |  |
| 2-carboxy-1,4-naphthoquinone phytyltransferase | This enzyme, found in plants and cyanobacteria, catalyses a step in the synthesis of phylloquinone (vitamin K1), an electron carrier associated with photosystem I. The enzyme catalyses the transfer of the phytyl chain synthesized by EC 1.3.1.83, geranylgeranyl diphosphate reductase, to 2-carboxy-1,4-naphthoquinone. Group: Enzymes. Synonyms: menA (gene name); ABC4 (gene name); 1,4-dioxo-2-naphthoate phytyltransferase; 1,4-diketo-2-naphthoate phytyltransferase. Enzyme Commission Number: EC 2.5.1.130. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2746; 2-carboxy-1,4-naphthoquinone phytyltransferase; EC 2.5.1.130; menA (gene name); ABC4 (gene name); 1,4-dioxo-2-naphthoate phytyltransferase; 1,4-diketo-2-naphthoate phytyltransferase. Cat No: EXWM-2746. | |
| Amicarbazone | Amicarbazone (BAY-MKH3586; BAY314666) becomes an effective inhibitor of photosynthetic electron transport by binding to the Qb site of photosystem II (PSII); it is a herbicide with broad-spectrum weed control. Uses: Scientific research. Group: Signaling pathways. Alternative Names: BAY314666; BAY-MKH 3586. CAS No. 129909-90-6. Pack Sizes: 100 mg. Product ID: HY-17513. | |
| Bromanil | A halogenated benxoquinone that is an effective inhibitor of photosynthetic electron transport through the spinach photosystem II and the cytochrome b6/f-complex. Group: Biochemicals. Alternative Names: 2,3,5,6-Tetrabromo-2,5-cyclohexadiene-1,4-dione; Tetrabromo-1,4-benzoquinone; Tetrabromo-p-benzoquinone; Tetrabromo-p-quinone; Tetra bromobenzoquinone; Tetrabromoquinone; 3, 4, 5, 6-Tetra bromocyclohexadiene -1, 2-dione; NSC 36927. Grades: Highly Purified. CAS No. 488-48-2. Pack Sizes: 2.5g. US Biological Life Sciences. |  Worldwide |
| Chlorophyll b | Chlorophyll b is an orally active tetrapyrrole derivative and pigment. Chlorophyll b can be obtained from photosynthetic organisms such as plants and algae. Chlorophyll b acts as a hydrogen donor and increases Glutathione levels. Chlorophyll b has antioxidant activity and functionally replaces chlorophyll a in photosystem II to participate in photosynthesis. Chlorophyll b reduces Cisplatin (HY-17394)-induced DNA damage, chromosome instability, and oxidative stress. Chlorophyll b is mainly used in the study of plant photosynthesis mechanism [1] [2] [3]. Uses: Scientific research. Group: Biochemical assay reagents. CAS No. 519-62-0. Pack Sizes: 500 μg. Product ID: HY-W127709. | |
| C-terminal processing peptidase | Proteolytic processing of the D1 protein of photosystem II is necessary to allow the light-driven assembly of the tetranuclear manganese cluster, which is responsible for photosynthetic water oxidation. The recognition of the substrate is mediated by a PDZ domain, a small protein module that promotes protein-protein interactions by binding to internal or C-terminal sequences of their partner proteins. Type example of peptidase family S41. Group: Enzymes. Synonyms: CtpA gene product (Synechocystis sp.); photosystem II D1 protein processing peptidase; protease Re; tail-specific protease; Tsp protease. Enzyme Commission Number: EC 3.4.21.102. CAS No. 216484-75-2, 92480-11-0. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4097; C-terminal processing peptidase; EC 3.4.21.102; 216484-75-2, 92480-11-0; CtpA gene product (Synechocystis sp.); photosystem II D1 protein processing peptidase; protease Re; tail-specific protease; Tsp protease. Cat No: EXWM-4097. | |
| demethylphylloquinone reductase | The enzyme, found in plants and cyanobacteria, is involved in the biosynthesis of phylloquinone (vitamin K1), an electron carrier associated with photosystem I. The enzyme is a type II NADPH dehydrogenase and requires a flavine adenine dinucleotide cofactor. Group: Enzymes. Synonyms: ndbB (gene name); NDC1 (gene name); demethylphylloquinone:NADPH oxidoreductase. Enzyme Commission Number: EC 1.6.5.12. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1590; demethylphylloquinone reductase; EC 1.6.5.12; ndbB (gene name); NDC1 (gene name); demethylphylloquinone:NADPH oxidoreductase. Cat No: EXWM-1590. | |
| Hexaflumuron | Hexazinone is a nonselective herbicide from the triazine family. Hexazinone binds to the D-1 quinone protein of the electron transport chain in photosystem II to inhibit the photosynthesis [1]. Uses: Scientific research. Group: Signaling pathways. CAS No. 86479-06-3. Pack Sizes: 10 mM * 1 mL; 25 mg; 50 mg; 100 mg. Product ID: HY-B1848. | |
| Irgarol (N-Cyclopropyl-N-(1,1-dimethylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine,. 2-(tert-Butylamino)-4-(cyclopropylamino)-6-(methylthio)-s-triazine) | Photosystem-II (PSII) herbicide; inhibits photosynthetic electron transport in chloroplasts. Group: Biochemicals. Alternative Names: N-Cyclopropyl-N-(1,1-dimethylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine; 2-(tert-Butylamino)-4-(cyclopropylamino)-6-(methylthio)-s-triazine. Grades: Highly Purified. CAS No. 28159-98-0. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| Linuron | Linuron is a phenylurea herbicide that is widely used to control the growth of grass and weeds in various agriculture crops and in orchards. Linuron is a photosystem II inhibitor. Linuron is also a competitive androgen receptor (AR) antagonist with a K i of 100 μM. Linuron shows reproductive toxicity in animals that acts as an endocrine disruptor [1] [2] [3] [4]. Uses: Scientific research. Group: Signaling pathways. CAS No. 330-55-2. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg. Product ID: HY-B1866. | |
| Metribuzin | Metribuzin is an is an aminotriazinone herbicide used in agriculture for both pre- and post-emergence in crops including soy bean, potatoes, tomatoes and sugar cane. Metribuzin acts by inhibiting photosynthesis by disrupting photosystem II. Group: Biochemicals. Alternative Names: 3-Methylthio-4-amino-6-tert-butyl-1,2,4-triazin-5(4H)-one; 4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one; 4-Amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5-one; 4-Amino-6-tert-butyl-3-(methylthio)-4,5-dihydro-1,2,4-triazin-5-one; BAY 6159; BAY 61597; BAY 6159H; BAY 94337; Bayer 6159; DPX 2504; Lexone; Lexone DF; Metribuzin; Metribuzine; Sencor; Sencor 4F; Sencor 75DF; Sencorex; Sencorex L.F.; Senkor; Zontran. Grades: Highly Purified. CAS No. 21087-64-9. Pack Sizes: 1g. US Biological Life Sciences. | Worldwide |
| pheophorbide a oxygenase | This enzyme catalyses a key reaction in chlorophyll degradation, which occurs during leaf senescence and fruit ripening in higher plants. The enzyme from Arabidopsis contains a Rieske-type iron-sulfur cluster and requires reduced ferredoxin, which is generated either by NADPH through the pentose-phosphate pathway or by the action of photosystem I. While still attached to this enzyme, the product is rapidly converted into primary fluorescent chlorophyll catabolite by the action of EC 1.3.7.12, red chlorophyll catabolite reductase. Pheophorbide b acts as an inhibitor. In 18O2 labelling experiments, only the aldehyde oxygen is labelled, suggesting that the other oxygen atom may originate from H2O. Group: Enzymes. Synonyms: pheide a monooxygenase; pheide a oxygenase; PaO; PAO. Enzyme Commission Number: EC 1.14.15.17. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-0942; pheophorbide a oxygenase; EC 1.14.15.17; pheide a monooxygenase; pheide a oxygenase; PaO; PAO. Cat No: EXWM-0942. | |
| plastoquinol-plastocyanin reductase | Contains two b-type cytochromes, two c-type cytochromes (cn and f), and a [2Fe-2S] Rieske cluster. The enzyme plays a key role in photosynthesis, transferring electrons from photosystem II (EC 1.10.3.9) to photosystem I (EC 1.97.1.12). Cytochrome c-552 can act as acceptor instead of plastocyanin, but more slowly. In chloroplasts, protons are translocated through the thylakoid membrane from the stroma to the lumen. The mechanism occurs through the Q cycle as in EC 1.10.2.2, quinol-cytochrome-c reductase (complex III) and involves electron bifurcation. Group: Enzymes. Synonyms: plastoquinol/plastocyanin oxidoreductase; cytochrome f/b6 complex; cytochrome b6f complex. Enzyme Commission Number: EC 7.1.1.6 (Formerly EC 1.10.9.1). CAS No. 79079-13-3. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-0489; plastoquinol-plastocyanin reductase; EC 1.10.9.1; 79079-13-3; plastoquinol/plastocyanin oxidoreductase; cytochrome f/b6 complex; cytochrome b6f complex. Cat No: EXWM-0489. | |
| red chlorophyll catabolite reductase | The enzyme participates in chlorophyll degradation, which occurs during leaf senescence and fruit ripening in higher plants. The reaction requires reduced ferredoxin, which is generated from NADPH produced either through the pentose-phosphate pathway or by the action of photosystem I. This reaction takes place while red chlorophyll catabolite is still bound to EC 1.14.15.17, pheophorbide a oxygenase. Depending on the plant species used as the source of enzyme, one of two possible C-1 epimers of primary fluorescent chlorophyll catabolite (pFCC), pFCC-1 or pFCC-2, is normally formed, with all genera or species within a family producing the same isomer. After modification and export, pFCCs are eventually imported into the vacuole, where the acidic environment causes their non-enzymic conversion into colourless breakdown products called non-fluorescent chlorophyll catabolites (NCCs). Group: Enzymes. Synonyms: RCCR; RCC reductase; red Chl catabolite reductase. Enzyme Commission Number: EC 1.3.7.12. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1393; red chlorophyll catabolite reductase; EC 1.3.7.12; RCCR; RCC reductase; red Chl catabolite reductase. Cat No: EXWM-1393. | |
| Spermidine | Spermidine maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine significantly decreases the H 2 O 2 and O 2.- contents [1]. Uses: Scientific research. Group: Natural products. CAS No. 124-20-9. Pack Sizes: 10 mM * 1 mL; 100 mg. Product ID: HY-B1776. | |
| Spermidine hydrochloride | Spermidine hydrochloride maintains cell membrane stability, increases antioxidant enzymes activities, improving photosystem II (PSII), and relevant gene expression. Spermidine hydrochloride significantly decreases the H 2 O 2 and O 2.- contents [1]. Uses: Scientific research. Group: Natural products. CAS No. 334-50-9. Pack Sizes: 10 mM * 1 mL; 100 mg. Product ID: HY-B1776A. | |
| Tenuazonic acid | Tenuazonic acid is a nonhost-selective mycotoxin belonging to the tetramic acids family. Tenuazonic acid inhibits protein biosynthesis on ribosomes by suppressing the release of new protein. Tenuazonic acid is acutely toxic, and oral LD 50 is set between 81-186 mg/kg in rats and mice. Tenuazonic acid blocks electron transport beyond the primary quinone receptor (QA) by interacting with the D1 protein and is a photosystem II (PSII) inhibitor. In addition, Tenuazonic acid has antiviral effects on measles virus, enterovirus, respiratory virus and so on. Tenuazonic acid has an inhibitory effect on skin cancer [1] [2] [3] [4] [5] [6] [7]. Uses: Scientific research. Group: Natural products. CAS No. 610-88-8. Pack Sizes: 5 mg. Product ID: HY-N6715. | |
| violaxanthin de-epoxidase | Along with EC 1.14.13.90, zeaxanthin epoxidase, this enzyme forms part of the xanthophyll (or violaxanthin) cycle for controlling the concentration of zeaxanthin in chloroplasts. It is activated by a low pH of the thylakoid lumen (produced by high light intensity). Zeaxanthin induces the dissipation of excitation energy in the chlorophyll of the light-harvesting protein complex of photosystem II. In higher plants the enzyme reacts with all-trans-diepoxides, such as violaxanthin, and all-trans-monoepoxides, but in the alga Mantoniella squamata, only the diepoxides are good substrates. Group: Enzymes. Synonyms: VDE. Enzyme Commission Number: EC 1.23.5.1. CAS No. 57534-73-3. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1269; violaxanthin de-epoxidase; EC 1.23.5.1; 57534-73-3; VDE. Cat No: EXWM-1269. | |
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