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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4.0 ★★★★★
Based on 19 reviews
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A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 3
Good tug toy
Size: 15 in, Color: Retriever
I have a doberman that shready everything in 2.5 seconds. This lasted a few days so was impressed for the cost. Would buy again as he really liked it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
L
Verified Purchase
Larry B.
Cuba, US
★★★★★ 5
My dog’s new favorite
Size: 8 in, Color: Squirrel
didn’t expect much for the price but my dog actually loves this thing. It’s tough enough to hold up to regular chewing and the leather gives it a nice texture that’s different from the usual plush toys. He carries it around like it’s his prize. It’s not indestructible and if your dog is a heavy shredder it probably won’t last forever but for moderate chewers it holds up way better than a lot of toys I’ve tried. Definitely worth grabbing again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 19, 2025
M
Verified Purchase
M
Natrona Heights, US
★★★★★ 4
Not for gnawers
Size: 11.5 in, Color: Bear
I was hoping this would work for my teenage ACD and save my leather goods from being chewed on. He gnawed on it quietly I was thrilled. But I had to take it from him within a few minutes. Gnawing apparently equals chewing pieces off. Not made for chewers or gnawers. It seemed to be well made, was soft, was actually a fairly good size and didn’t get gross when it got spitty. Just didn’t work out for Captain chaos destructor of all.
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Reviewed in the United States on May 4, 2026
M
Verified Purchase
Maria Peters
Fort Morgan, US
★★★★★ 5
Durable & Leather. For Small-Medium Dogs
Size: 15 in, Color: Retriever, Size: 15 in, Color: Retriever
This is a great dog toy! My Pomeranian is a small guy at only 8lbs. but he sure knows how to chew and he does it as often as he can. I was throwing out toy after toy because he was tearing them to pieces after only a half hour or so. After putting my money in the garbage so many times, I decided to search for toys that would hold up to his destructive mouth. I found a lot that claimed they wouldn't fall apart but they were all more than I wanted to spend. I came across this toy and a rabbit shaped one just like this. I bought both months ago and both are still in tact after all this time. Sure the edges are a little frayed but other than that, no damage whatsoever! I'm not sure what dura fused means but that seemed promising to me when I was reading the description, also the fact that they're leather made them seem more durable to me. Both have squeakers inside and some sort of stuffing as well. I throw all of my dogs toys in the laundry or hand wash them once a week, except for these. When these toys get wet with my dogs saliva, they look like they're not meant to get wet. Even without washing, these seem fine. This toy is probably about 9" long or so if I had to guess. In my opinion, it'd be perfect for a medium sized dog. It's a tiny bit big for my little guy but he manages just fine! If you're looking for a durable toy that your small to medium dog can chew on constantly, look no further!
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Reviewed in the United States on February 3, 2020
G
Verified Purchase
GK5040
Omaha, US
★★★★★ 5
Always looking for less destructible dog toys
Size: 8 in, Color: Squirrel, Size: 8 in, Color: Squirrel
I am constantly searching for aggressive chewer dog toys. So many claim to be and one look and you know they haven’t met your dog!! Our golden retriever is so sweet until he gets his claws and teeth into a new toy. We nicknamed him the shredder, as he rips his new toys to pieces. I accidentally stumbled across this toy. We have never owned a leather dog toy. The squirrel is going to give Maverick a run for his money. The edges are double sewn closed. I am very impressed with the quality of this toy for $5.75 which includes the sales price and an additional 10% off coupon. Even without those two incentives the toy is less than $8 prime. The other shapes are similar or cheaper in price and now I see a 50% off 1 toy coupon when you buy 2. What a deal and the squirrel has a squeaker inside. What I like about the squirrel is that there’s less limbs or appendages for Maverick to shred off. The bunny has ears, the raccoon has hands, the buffalo has legs, the bone and retriever stick have a rope, the bear has a neck and head that could be chewed off, similar to the fox who has a tail and snout. The squirrel looks like it would be harder to destroy! The squeaker was hard to push at first but is easier now. Maverick has a black lab sister who loves squirrels, more so than she loves toys, and I found this toy searching for squirrel toys for her. It is offered in 8 other shapes. The squirrel measures almost 8” tall by 5” wide. It’s perfect for a medium or large size dog. Based on the construction of this squirrel dog toy it looks acceptable for an aggressive chewer and won’t break the bank. It’s very affordable. Always supervise! Updates to follow at Christmas:). BTW, the squirrel did not smell bad upon opening.
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Reviewed in the United States on December 3, 2024

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