SKU: 50982309240

mrp4 vesicle kit

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Description

mrp4 vesicle kitHuman MRP4 Vesikel Kit Inside Out Membranvesikel fr renale proximale Tubuli und Nukleotid Transportstudien Das Human MRP4 Vesikel Kit (HEK293 abgeleitet) liefert gebrauchsfertige Inside Out Membranvesikel fr ATP abhngige Transportstudien von MRP4 (ABCC4). MRP4 wird in renalen proximalen Tubuli, Hepatozyten, Thrombozyten und der Blut Hirn Schranke exprimiert. Es verarbeitet ein breites Spektrum an Substraten einschlielich zyklischer Nukleotide,

Human MRP4 Vesikel-Kit – Inside-Out-Membranvesikel für renale proximale Tubuli und Nukleotid-Transportstudien

Das Human MRP4 Vesikel-Kit (HEK293-abgeleitet) liefert gebrauchsfertige Inside-Out-Membranvesikel für ATP-abhängige Transportstudien von MRP4 (ABCC4). MRP4 wird in renalen proximalen Tubuli, Hepatozyten, Thrombozyten und der Blut-Hirn-Schranke exprimiert. Es verarbeitet ein breites Spektrum an Substraten einschließlich zyklischer Nukleotide, Prostaglandine, Urat und nukleotidanaloger antiviraler und onkologischer Arzneimittel — was es besonders wichtig für die renale DDI-Risikobewertung und antivirale Arzneimittelentwicklung macht.

Transporterprofil

MRP4 (ABCC4) transportiert zyklische Nukleotide (cAMP, cGMP), Prostaglandine, Urat, Glutathionkonjugate und Nukleotidanaloga. Es wird in der apikalen Membran des renalen proximalen Tubulus (beiträgt zur renalen Ausscheidung), der hepatischen basolateralen Membran und Thrombozyten (reguliert Thromboxan-A₂/cAMP-Signaling) exprimiert. Wichtige Substrate: PMEA (Adefovir), Methotrexat, cAMP, cGMP, Leucovorin. Besonders relevant für antivirale Nukleosidanaloga (Tenofovir, Adefovir, Cidofovir).

Technische Spezifikationen

ParameterSpezifikation
TransporterHuman MRP4 (Multidrug Resistance-Associated Protein 4) (ABCC4)
ExpressionssystemHEK293 (transiente Überexpression)
VesikeltypInside-Out-Membranvesikel
Reaktionen pro Kit100
ATP/AMP-Transportverhältnis>5
DetektionskompatibilitätRadiolabel, LC-MS/MS
Lagerung−80 °C (Lieferung auf Trockeneis)
Kit-InhaltVesikel, ATP, AMP, Reaktionspuffer, Waschpuffer, CoA
HerstellerCell4Pharma (Netherlands)
Distributor DACHSeamlessBio GmbH, Passau

Anwendungsgebiete

AnwendungBeschreibung
Antivirale Arzneimittel renale AusscheidungsstudienNukleotidanaloge Antivirale (Tenofovir, Adefovir, Cidofovir) sind MRP4-Substrate. MRP4-Hemmungsstudien bewerten das DDI-Risiko für renale Akkumulation und Nephrotoxizität.
Renale DDI-RisikobewertungMRP4 an der apikalen Membran des renalen proximalen Tubulus vermittelt die renale Arzneimittelausscheidung. Hemmung kann zu renaler Substratakkumulation führen — relevant für Dosisanpassung und Kombinationstherapie.
Prostaglandin/zyklischer Nukleotid-EffluxProstaglandine (PGE₁, PGE₂) sind endogene MRP4-Substrate. MRP4-Hemmung in Thrombozyten kann cAMP-Spiegel verändern und die Thrombozytenaktivierung beeinflussen.

Assay-Prinzip

Inside-Out-Membranvesikel präsentieren die zytoplasmatische Seite des Transporters dem Assaypuffer und ermöglichen so ATP-abhängige Substrataufnahme in das Vesikelinnere. Vesikel mit Testverbindung und Probesubstrat in Gegenwart von ATP (Transport) oder AMP (Hintergrundkontrolle) inkubieren. Reaktion mit kaltem Waschpuffer stoppen, Vesikel durch Filtration trennen und akkumuliertes Substrat per LC-MS/MS, Radiolabel oder Fluoreszenz quantifizieren. Das ATP/AMP-Verhältnis bestimmt das Assay-Fenster für die zuverlässige IC₅₀-Bestimmung.

Komplettes Cell4Pharma Kit-Portfolio bei SeamlessBio

Alle ABC-Transporter-Vesikel-Kits aus einer europäischen Quelle — schnelle Kühlkettenlieferung, garantierte ATP/AMP-Verhältnisse, vollständige Dokumentation.

KitTransporterGenATP/AMP-Verhältnis
Human BCRP Vesicle KitBCRPABCG2>10
Human BSEP Vesicle KitBSEPABCB11>10
Human MRP1 Vesicle KitMRP1ABCC1>5
Human MRP2 Vesicle KitMRP2ABCC2>20
Human MRP3 Vesicle KitMRP3ABCC3>5
Human MRP4 Vesicle KitMRP4ABCC4>5
Human MRP5 Vesicle KitMRP5ABCC5>5
Human MRP8 Vesicle KitMRP8ABCC11>5
Human Pgp Vesicle KitP-gp / MDR1ABCB1>5
Human Pgp + FluoPgp KitP-gp / MDR1ABCB1>5
Human Control Vesicle KitHEK293 empty vector

Qualität & Regulatorische Konformität

  • Produziert von Cell4Pharma — Spezialhersteller für ABC-Transporter-Vesikelsysteme
  • Garantiertes ATP/AMP-Transportverhältnis >5 pro Charge
  • Große, einheitliche Chargen — maximale Lot-zu-Lot-Konsistenz
  • Chargenspezifischer QC-Bericht + Datenblatt bei jedem Kit inklusive
  • Konform mit FDA DDI Guidance (2020) und EMA DDI Guideline (2013/2022)

Warum über SeamlessBio bestellen?

VorteilBeschreibung
✅ EU-LagerverfügbarkeitSchnelle Kühlkettenlieferung in Deutschland, Österreich, Schweiz und der EU
✅ DirektkontaktDirekter Kontakt zum Fachberater — auf Deutsch oder Englisch
✅ Vollständige DokumentationDatenblatt, QC-Bericht und Rechnung bei jeder Lieferung
✅ ChargenreservierungSpezifische Charge für die gesamte Projektlaufzeit reservieren
✅ Komplettes PortfolioAlle 11 Cell4Pharma Kits aus einer Quelle — BCRP, BSEP, MRP1–8, Pgp, Kontrolle

Bestellung oder Preisanfrage: [email protected] | +49 851 37932226

Häufige Fragen

Ist MRP4 für bestimmte Arzneimittelklassen besonders relevant?

Ja — MRP4 ist am wichtigsten für: (1) Nukleotidanaloge Antivirale (Tenofovir, Adefovir, Cidofovir), wo renales MRP4 Ausscheidung und DDI-Risiko vermittelt, (2) NSAIDs und COX-Inhibitoren über Prostaglandin-Efflux, und (3) Methotrexat und Antifolate.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50982309240

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4.9 ★★★★★
Based on 26 reviews
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Kaycee
Lake Worth, US
★★★★★ 4
Not as sturdy as a regular one
Size: Mini
I was holding off writing a review about this because I wasn’t sure that it was going to hold up as well as a regular non bendable Chuck It wand. I have found I like the way it folds up and fits into my backpack nicely and also fits into my big purse when I’m out and about with my dog. You have to make sure the orange sleeve is over the screw part in the middle of the wand before you can throw the ball otherwise it’s not going to throw. It’s going to collapse. I’m not sure how long the durability is going to last that’s my only question about this product and I don’t know how long the screws on the elbow of it are gonna hold up but for now it’s been working great and we play with it every day and I’ve not had a problem with it. It’s just not as sturdy as a full size wand
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2024
D
Verified Purchase
Dana S Kroeger
West Palm Beach, US
★★★★★ 5
Love this version of Chuck It beyond all before
Size: Mini
I had the longer bendable Chuck It before, well several, which broke down. They finally wouldn’t’ release the ball. Not disparaging Chuck It. They have been my furry puppy's favorite thing ever. I am grateful. But what I like and think is intuitive about this smaller design is 2 things: 1. I can do a more dynamic throw. 2. There are circle holes in the Chuck It Ball that come with it that I think allow for easier release and the ball can go father. Just my two cents.
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Reviewed in the United States on January 8, 2026
T
Verified Purchase
Tish
Grantham, US
★★★★★ 3
Still Good to Use in a Pinch
Size: Mini
Love the Chuck it brand. This collapsible one is not my favorite. Everytime I chuck it, the orange lock does not stay in place. Plus, in my opinion, it doesn't have the oomph for the distance like the other medium ones. Still good though
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Reviewed in the United States on January 28, 2026
C
Verified Purchase
Cascadian
Dallas, US
★★★★★ 5
Great For Dog Park Fun -- The Ball Goes Flying
Size: 25in, Style: Sport
I love this thing. It's super well made and It enables me to chuck a ball the entire length of the dog park (I'm a 65 yr old woman with a wimpy arm). My dog is thrilled too. At first I thought it might be too heavy, but that's just not an issue, the weight is fine. For non-throwers like me someone at the dog park gave me a tip --- just look at the area you want to throw the ball. Helped my aim immensely. The 2.5 inch chuck it ball it comes with is my dog's absolute *favorite* . . . it's her security blanket in the kennel while driving, and it's her favorite ball to chase (the only one she'll actually bring back). She loves to chew it and to squish the air out of it, which takes a little effort. Recommend.
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Reviewed in the United States on May 25, 2025
L
Verified Purchase
leal536
Omaha, US
★★★★★ 5
Great tool!
Size: 18in, Style: Sport
Ok - so I do not have a dog!!! I purchased this item for a completely different purpose! I saw someone using this to gather eggs!! I often go to my daughter and son-in-law's homestead to carry out the chores when they need to be out of town! Well, I am a bit on the short side (4'11") and some of the hens KNOW that a short person is going to be gathering eggs!!! I simply could not reach all of the eggs in a couple of the nesting boxes! So, after seeing someone else use this ball launcher as an egg retriever, I bought one! I am now able to reach ALL of the eggs - one at a time with no breakage! It was a game changer for me. I am sure that it works equally well for dog play!!!
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Reviewed in the United States on November 15, 2024

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