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
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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]
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king_tinac
Chelsea, US
★★★★★ 5
Excellent book even though not exactly what I expected
Format: Paperback
I gave this 5 stars because I think depending on what you are working on, it could be. It wasn't as helpful to me. I was hoping for something that would tell me more about what "normal" people do because I know that I learned some odd ways of thinking and behaving when I was growing up. It did help somewhat in this, but I think the title is slightly misleading. I recommend this as one of the first books to read if you believe that there might have been something dysfunctional about the way you were raised but you are not sure what or you're just starting your exploration of those issues. It's not a "parent bashing" book, but instead a kind and compassionate book on how to get better, not blame. Chapter 19 about perfectionism resonated with me and gave some nice tips on how to deal with it. Unfortunately, that entire chapter is just two pages long, so it's not worth buying the whole book just for that. It's an easy read and well written, so if you're on the fence, buy it. I think you'll get something valuable out of it.
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Reviewed in the United States on March 29, 2014
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G. Jordan
Phoenix, US
★★★★★ 5
My new ACA Bible
Format: Paperback
Whoever said it was too cookbook hasn't appreciated the the value of having a thorough one at hand. I loved the Friel's approach. It is a bit harder on the ego than the Woititz ACOA book but this one includes ALL dysfunctions, and I know even after years in recovery I will still find valuable resources in this book to guide me along my bumpy journey. As one who has NO idea what is normal, yet somehow manages to function at the basic level in society, I definitely appreciated the simple yet thorough approach used here. This book isn't another "blame the parents--give you an excuse" soother. It requires that we take responsibility for our adult lives, recovery, happiness, misery, relationships, dysfunctional patterns & our future. This book shows me exactly what healthy (they don't believe in the statistical normal, to them normal means emotionally healthy, which is a far more useful definition of the ambiguous term "normal" anyway) living means, looks-smells-tastes-feels like! I can use this book as a check-up to see if I'm on the right track and if not, follow the suggestions or get further help. Most of all this book helped me to recognize that recovery isn't an overnight process, can't be done alone in isolation, that I'm human and mistakes are actually a GOOD and WELCOME experience and do NOT have anything whatsoever to do with my self-worth. This book even includes several chapters on how to respond to con artists, abusers & generally rude, mean or unhealthy people. How to deal with zingers, how to set healthy boundaries & protect ourselves & our healthy boundaries, I could go on for pages praising this book. I've bought numerous other self-help books & this one was the best. The authors do suggest waiting until one has 2+ years of recovery before tackling this book. To hell with that. Read it now, and every step of the way on your journey. Start feeling better about YOU & your life right NOW, today. Good luck on your journey, happy discoveries to you.
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Reviewed in the United States on April 20, 2001
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Amita
New York, US
★★★★★ 5
Important book
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Got many insights from this book. Wonderful for healing
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Linda Parsley
Port Orchard, US
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Book on dealing with life if you are an adult child of an alcoholic
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This book is a quick read but it is filled with numerous examples for how to deal with situations that occur in life, from dealing with loneliness, stress, perfectionism, dealing with people who say inappropriate or abusive things to me, and parenting children etc. Recommend it to anyone who struggles with codependency.
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Reviewed in the United States on January 26, 2022
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Rachel
Natrona Heights, US
★★★★★ 5
Extremely helpful
Format: Paperback
I am GenX and was raised by boomers who joined a religious cult. This book is a step by step guide to my childhood issues. And it gives me validation knowing that I’m not crazy and there’s others out there like me. Great book. Highly recommend.
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Reviewed in the United States on October 19, 2022

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