Drug Transporter (DT) Information

General Information of DT
DT ID DTD0013
Gene Name ABCB4
Protein Name Multidrug resistance protein 3
Gene ID
5244
UniProt ID
P21439
TCDB ID
3.A.1.201.3
3D Structure

Modelled DT Structure

Method: loop building

Template PDB: 6S7P_A

Identity: 99.3%

Minimized Score: -3282.241 kcal/mol

Detail: Structure Info

Synonyms ABC21; ABCB4; ATP-binding cassette sub-family B member 4; GBD1; ICP3; MDR2; MDR2/3; MDR3; P-glycoprotein 3; PFIC-3; PGY3; Phosphatidylcholine translocator ABCB4
DT Family ATP-Binding Cassette (ABC) Superfamily
Multidrug Resistance Exporter (MDR) Family (ABCB)
Function This energy-dependent phospholipid efflux translocator that acts as a positive regulator of biliary lipid secretion. And it as a floppase that translocates specifically phosphatidylcholine (PC) from the inner to the outer leaflet of the canalicular membrane bilayer into the canaliculi of hepatocytes. It indirectly involved in cholesterol efflux activity from hepatocytes into the canalicular lumen in the presence of bile salts in an ATP-dependent manner. In cooperation with ATP8B1, functions to protect hepatocytes from the deleterious detergent activity of bile salts.
Disease(s) Benign prostatic hyperplasia [ICD-11: GA90]
Breast cancer [ICD-11: 2C60-2C6Z]
Heart failure [ICD-11: BD1Z]
Hodgkin lymphoma [ICD-11: 2B30]
Chronic pain [ICD-11: MG30]
Endogenous Substrate(s) Phosphatidylcholine; Short-chain fatty acids
Variability Data of This Drug Transporter (DT)

Regulatory Variability Data of This DT (VARIDT 3.0)

(β) Post-translational Modification of This DT
Post-translational Modification (PTM)

(γ) Transcriptional Regulation of This DT
Transcriptional Regulation (TSR)

(δ) Epigenetic Regulation of This DT
Epigenetic Regulation (EGR)

(ε) Exogenous Modulation of This DT
Exogenous Modulation (EGM)

Structural Variability Data of This DT (VARIDT 2.0)

(α) Mutation-induced Structural Variation
Mutation-induced Structural Variation (MSV)

(β) Inter-species Structural Differences
Inter-species Structural Differences (ISD)

(γ) Outward/inward-facing Conformation
Outward/inward-facing Conformation (OIC)

General Variability Data of This DT (VARIDT 1.0)

(α) Genetic Polymorphisms of This DT
Genetic Polymorphisms of This DT (GPD)

(β) Disease-specific Protein Abundances of This DT
Disease-specific Protein Abundances of This DT (DPAD)

(γ) Species- and Tissue-specific DT Abundances
Species/Tissue-specific Protein Abundances of This DT (S/TPAD)
Molecular Transporting Profile of This DT

Full List of Drug(s) Transported by This DT

 Approved Drug

 Click to Show/Hide the Full List of Drug:            5 Drugs in Total
Drug Name Highest Status Detail Indication ICD 11 Ref
Digoxin
 Approved Drug Info Arrhythmias BC60-BC9Z [1]
Paclitaxel
 Approved Drug Info Breast cancer 2C60-2C6Z [1]
Silodosin
 Approved Drug Info Benign prostatic hyperplasia GA90 [2]
Verapamil
 Approved Drug Info High blood pressure BA00 [1]
Vinblastine
 Approved Drug Info Testicular cancer 2C80 [1]
References
1 MDR3 P-glycoprotein, a phosphatidylcholine translocase, transports several cytotoxic drugs and directly interacts with drugs as judged by interference with nucleotide trapping. J Biol Chem. 2000 Aug 4;275(31):23530-9.
2 Pharmacokinetics and disposition of silodosin (KMD-3213)]. Yakugaku Zasshi. 2006 Mar;126 Spec no.:237-45.

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