BEC
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- CAS-Nr.
- 63107-40-4
- Englisch Name:
- BEC
- Synonyma:
- BEC;S-(2-BORONOETHYL)-L-CYSTEINE;L-Cysteine, S-(2-boronoethyl)-;Arginase II（BEC hydrochloride）;(2S)-2-amino-3-(2-boronoethylsulfanyl)propanoic acid
- CBNumber:
- CB0700230
- Summenformel:
- C5H12BNO4S
- Molgewicht:
- 193.03
- MOL-Datei:
- 63107-40-4.mol
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BEC Eigenschaften
- Siedepunkt:
- 451.6±55.0 °C(Predicted)
- Dichte
- 1.372±0.06 g/cm3(Predicted)
- storage temp.
- -20°C
- Löslichkeit
- PBS (pH 7.2): 5 mg/ml
- Aggregatzustand
- powder
- pka
- 2.10±0.10(Predicted)
- Farbe
- white to beige
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| Bildanzeige (GHS) |
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| Alarmwort |
Warnung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H315 |
Verursacht Hautreizungen. |
Hautreizung |
Kategorie 2 |
Warnung |
![GHS hazard pictograms]() src="/GHS07.jpg" width="20" height="20" /> |
P264, P280, P302+P352, P321,P332+P313, P362 |
| H319 |
Verursacht schwere Augenreizung. |
Schwere Augenreizung |
Kategorie 2 |
Warnung |
![GHS hazard pictograms]() src="/GHS07.jpg" width="20" height="20" /> |
P264, P280, P305+P351+P338,P337+P313P |
| H335 |
Kann die Atemwege reizen. |
Spezifische Zielorgan-Toxizität (einmalige Exposition) |
Kategorie 3 (Atemwegsreizung) |
Warnung |
![GHS hazard pictograms]() src="/GHS07.jpg" width="20" height="20" /> |
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| Sicherheit |
| P261 |
Einatmen von Staub vermeiden. |
| P264 |
Nach Gebrauch gründlich waschen. |
| P264 |
Nach Gebrauch gründlich waschen. |
| P271 |
Nur im Freien oder in gut belüfteten Räumen verwenden. |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
| P302+P352 |
BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen. |
| P305+P351+P338 |
BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen. |
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BEC Chemische Eigenschaften,Einsatz,Produktion Methoden
Verwenden
L-Arginine serves as a common substrate for both nitric oxide synthase (NOS) and arginase in the cell. NOS catalyzes the oxidation of arginine to citrulline and NO with Nω-hydroxy-L-arginine (NOHA) formed as an intermediate. Arginase, on the other hand, catalyzes the hydrolysis of arginine into urea and L-ornithine. BEC is a potent slow-binding competitive inhibitor of recombinant rat liver arginase I with a Ki of 0.4-0.6 μM. It is also a potent inhibitor of human arginase II with Ki values of 0.31 μM and 30 nM at pH 7.5 and 9.5, respectively. It does not inhibit murine iNOS at concentrations up to 1 mM. BEC significantly enhances NO-dependent relaxation of human penile corpus canvernosum smooth muscle in vitro at concentrations between 0.1-1.0 mM.
Biochem/physiol Actions
BEC (S-(2-boronoethyl)-l-cysteine) is a potent and specific arginase inhibitor that restores flow-induced responses in arterioles from diabetic rats.
Enzyminhibitor
This boronic acid-containing arginine analogue (FW = 190.00 g/mol; CAS 63107-40-4; Abbreviation: BEC) is a slow, tight-binding competitive inhibitor of arginase (Reaction: L-Arginine + H2O ? Urea + L-Ornithine), the binuclear manganese metalloenzyme catalyzing the last step in the Urea Cycle. Upon binding, the boronic acid moiety undergoes nucleophilic attack by the enzyme’s metal-bridging hydroxide ion, yielding a tetrahedral boronate anion that bridges the binuclear manganese cluster and mimics the tetrahedral intermediate (or a flanking transition state configuration) in arginase catalysis. BEC is also a potent inhibitor of human arginase II with Ki values of 0.31 μM and 30 nM at pH 7.5 and 9.5, respectively. Inhibition of arginase by BEC increases the circulating concentration of arginine, thereby increasing nitric oxide synthesis and significantly enhancing NO-dependent smooth muscle relaxation in human penile corpus cavernosum. Arginase is thus a potential druggable target for the treatment of erectile dysfunction.
BEC Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
BEC Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 50)Lieferanten
63107-40-4()Verwandte Suche:
- BEC
- S-(2-BORONOETHYL)-L-CYSTEINE
- L-Cysteine, S-(2-boronoethyl)-
- (2S)-2-amino-3-(2-boronoethylsulfanyl)propanoic acid
- Arginase II（BEC hydrochloride）
- 63107-40-4
