Ceftibuten

Identification

Summary

Ceftibuten is a third-generation cephalosporin antibiotic commonly used in the treatment of acute bacterial exacerbations of chronic bronchitis (ABECB), acute bacterial otitis media, pharyngitis, and tonsillitis.

Brand Names
Cedax
Generic Name
Ceftibuten
DrugBank Accession Number
DB01415
Background

Ceftibuten is a third-generation cephalosporin antibiotic that is orally-administered. It is typically used to treat acute bacterial exacerbations of chronic bronchitis (ABECB), acute bacterial otitis media, pharyngitis, and tonsilitis.

Type
Small Molecule
Groups
Approved, Investigational
Structure
Weight
Average: 410.425
Monoisotopic: 410.03547558
Chemical Formula
C15H14N4O6S2
Synonyms
  • (+)-(6R,7R)-7-((Z)-2-(2-amino-4-thiazolyl)-4-carboxycrotonamido)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid
  • Ceftibuten
  • Ceftibutene
  • Ceftibuteno
  • Ceftibutenum
  • cis-ceftibuten
External IDs
  • 7432-S
  • SCH 39720

Pharmacology

Indication

Indicated for the treatment of acute bacterial exacerbations of chronic bronchitis (ABECB), acute bacterial otitis media, pharyngitis, and tonsilitis.

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Associated Conditions
Indication TypeIndicationCombined Product DetailsApproval LevelAge GroupPatient CharacteristicsDose Form
Treatment ofAcute bacterial exacerbation of chronic bronchitis••••••••••••
Used in combination to treatAcute bronchitisCombination Product in combination with: Clavulanic acid (DB00766)••••••••••••••••••
Used in combination to treatAcute otitis mediaCombination Product in combination with: Clavulanic acid (DB00766)••••••••••••••••••••••••••
Used in combination to treatAcute sinusitisCombination Product in combination with: Clavulanic acid (DB00766)••••••••••••••••••
Treatment ofBacterial infections••••••••••••
Contraindications & Blackbox Warnings
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Pharmacodynamics

Ceftibuten is an antibiotic with bactericidal actions.

Mechanism of action

Ceftibuten exerts its bactericidal action by binding to essential target proteins of the bacterial cell wall. This binding leads to inhibition of cell-wall synthesis.

TargetActionsOrganism
APeptidoglycan synthase FtsI
inhibitor
Escherichia coli (strain K12)
APenicillin-binding protein 1A
inhibitor
Escherichia coli (strain K12)
APenicillin-binding protein 1B
inhibitor
Escherichia coli (strain K12)
APenicillin-binding protein 2
inhibitor
Escherichia coli (strain K12)
Absorption

Rapidly absorbed following oral administration.

Volume of distribution
  • 0.21 L/kg [adult subjects]
  • 0.5 L/kg [fasting pediatric patients]
Protein binding

Ceftibuten is 65% bound to plasma proteins. The protein binding is independent of plasma ceftibuten concentration.

Metabolism

A study with radiolabeled ceftibuten administered to 6 healthy adult male volunteers demonstrated that cis-ceftibuten is the predominant component in both plasma and urine. About 10% of ceftibuten is converted to the trans-isomer is approximately 1/8 as antimicrobially potent as the cis-isomer.

Route of elimination

Ceftibuten is excreted in the urine; 95% of the administered radioactivity was recovered either in urine or feces.

Half-life

Not Available

Clearance

Not Available

Adverse Effects
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Toxicity

Overdosage of cephalosporins can cause cerebral irritation leading to convulsions.

Pathways
Not Available
Pharmacogenomic Effects/ADRs
Not Available

Interactions

Drug Interactions
This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
DrugInteraction
AbacavirCeftibuten may decrease the excretion rate of Abacavir which could result in a higher serum level.
AbciximabThe therapeutic efficacy of Abciximab can be decreased when used in combination with Ceftibuten.
AceclofenacThe risk or severity of nephrotoxicity can be increased when Ceftibuten is combined with Aceclofenac.
AcemetacinThe risk or severity of nephrotoxicity can be increased when Ceftibuten is combined with Acemetacin.
AcenocoumarolThe risk or severity of bleeding can be increased when Ceftibuten is combined with Acenocoumarol.
Food Interactions
  • Take separate from meals. Take ceftibuten oral suspension at least one hour after eating, or two hours before eating.
  • Take with or without food. Separating the administration of ceftibuten from food is not required for ceftibuten capsules because the impact of food on bioavailability is less significant.

Products

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Product Ingredients
IngredientUNIICASInChI Key
Ceftibuten dihydrate62F4443RWP118081-34-8SSWTVBYDDFPFAF-DKOGRLLHSA-N
Brand Name Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
CedaxCapsule400 mg/1OralSciele Pharma, Inc.1995-12-20Not applicableUS flag
CedaxCapsule400 mg/1OralPernix Therapeutics1995-12-202017-12-31US flag
CedaxSuspension90 mg/5mLOralShionogi1995-12-012011-06-30US flag
CedaxSuspension18 mg/1mLOralSciele Pharma, Inc.1995-12-20Not applicableUS flag
CedaxSuspension180 mg/5mLOralPernix Therapeutics2010-10-202017-12-31US flag
Generic Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
CeftibutenSuspension180 mg/5mLOralMacoven Pharmaceuticals2013-10-012017-12-31US flag
CeftibutenCapsule400 mg/1OralMacoven Pharmaceuticals2013-10-012017-12-31US flag
Mixture Products
NameIngredientsDosageRouteLabellerMarketing StartMarketing EndRegionImage
BUCEF PLUS 180/62.5 MG TOZ ICEREN SASE, 20 ADETCeftibuten dihydrate (180 mg) + Clavulanic acid (62.5 mg)PowderOralNEUTEC İLAÇ SAN. TİC. A.Ş.2010-12-27Not applicableTurkey flag
BUCEF PLUS 90/62.5 MG TOZ ICEREN SASE, 20 ADETCeftibuten dihydrate (90 mg) + Clavulanic acid (62.5 mg)PowderOralNEUTEC İLAÇ SAN. TİC. A.Ş.2010-12-27Not applicableTurkey flag
WINCEF PLUS 180/62.5 MG/5 ML ORAL SUSPANSIYON HAZIRLAMAK ICIN KURU TOZ, 100 MLCeftibuten (180 mg/5mL) + Clavulanic acid (62.5 mg/5mL)SuspensionOralCELTİS İLAÇ SAN. VE TİC. A.Ş.2012-01-12Not applicableTurkey flag
WINCEF PLUS 200/62.5 MG FILM KAPLI TABLET, 20 ADETCeftibuten (200 mg) + Clavulanic acid (62.5 mg)Tablet, coatedOralCELTİS İLAÇ SAN. VE TİC. A.Ş.2012-02-09Not applicableTurkey flag
WINCEF PLUS 400/125 MG FILM KAPLI TABLET, 10 ADETCeftibuten (400 mg) + Clavulanic acid (125 mg)Tablet, coatedOralCELTİS İLAÇ SAN. VE TİC. A.Ş.2012-02-09Not applicableTurkey flag

Categories

ATC Codes
J01DD14 — Ceftibuten
Drug Categories
Chemical TaxonomyProvided by Classyfire
Description
This compound belongs to the class of organic compounds known as cephalosporins. These are compounds containing a 1,2-thiazine fused to a 2-azetidinone to for a oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid moiety or a derivative thereof.
Kingdom
Organic compounds
Super Class
Organoheterocyclic compounds
Class
Lactams
Sub Class
Beta lactams
Direct Parent
Cephalosporins
Alternative Parents
N-acyl-alpha amino acids and derivatives / 2,4-disubstituted thiazoles / 1,3-thiazines / 2-amino-1,3-thiazoles / Dicarboxylic acids and derivatives / N-acyl amines / Tertiary carboxylic acid amides / Heteroaromatic compounds / Secondary carboxylic acid amides / Amino acids
show 10 more
Substituents
1,3-thiazol-2-amine / 2,4-disubstituted 1,3-thiazole / Alpha-amino acid or derivatives / Amine / Amino acid / Amino acid or derivatives / Aromatic heteropolycyclic compound / Azacycle / Azetidine / Azole
show 24 more
Molecular Framework
Aromatic heteropolycyclic compounds
External Descriptors
cephalosporin, dicarboxylic acid (CHEBI:3510)
Affected organisms
  • Enteric bacteria and other eubacteria

Chemical Identifiers

UNII
IW71N46B4Y
CAS number
97519-39-6
InChI Key
UNJFKXSSGBWRBZ-BJCIPQKHSA-N
InChI
InChI=1S/C15H14N4O6S2/c16-15-17-7(5-27-15)6(1-2-9(20)21)11(22)18-10-12(23)19-8(14(24)25)3-4-26-13(10)19/h1,3,5,10,13H,2,4H2,(H2,16,17)(H,18,22)(H,20,21)(H,24,25)/b6-1-/t10-,13-/m1/s1
IUPAC Name
(6R,7R)-7-[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-4-carboxybut-2-enamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
SMILES
[H][C@]12SCC=C(N1C(=O)[C@H]2NC(=O)C(=C/CC(O)=O)\C1=CSC(N)=N1)C(O)=O

References

General References
Not Available
Human Metabolome Database
HMDB0015485
KEGG Drug
D00922
KEGG Compound
C08117
PubChem Compound
5282242
PubChem Substance
46507324
ChemSpider
4445419
BindingDB
50370586
RxNav
20492
ChEBI
3510
ChEMBL
CHEMBL1605
ZINC
ZINC000003871967
Therapeutic Targets Database
DAP000456
PharmGKB
PA164744555
RxList
RxList Drug Page
Drugs.com
Drugs.com Drug Page
PDRhealth
PDRhealth Drug Page
Wikipedia
Ceftibuten

Clinical Trials

Clinical Trials
Clinical Trial & Rare Diseases Add-on Data Package
Explore 4,000+ rare diseases, orphan drugs & condition pairs, clinical trial why stopped data, & more. Preview package
PhaseStatusPurposeConditionsCountStart DateWhy Stopped100+ additional columns
3TerminatedTreatmentPyelonephritis1somestatusstop reasonjust information to hide
1CompletedBasic ScienceHealthy Volunteers (HV)2somestatusstop reasonjust information to hide
1CompletedBasic SciencePharmacokinetics1somestatusstop reasonjust information to hide
1CompletedTreatmentPharmacokinetics1somestatusstop reasonjust information to hide
1Not Yet RecruitingTreatmentBacterial Infections1somestatusstop reasonjust information to hide

Pharmacoeconomics

Manufacturers
Not Available
Packagers
  • Schering Corp.
  • Sciele Pharma Inc.
  • Shionogi Pharma Inc.
  • Zyber Pharmaceuticals
Dosage Forms
FormRouteStrength
PowderOral
PowderOral
CapsuleOral200 MG
CapsuleOral400 mg/1
CapsuleOral400 MG
CapsuleOral400.00 mg
Granule, for suspensionOral14.4 g/100g
SuspensionOral18 mg/1mL
SuspensionOral2.1600 g
SuspensionOral90 mg/5mL
Tablet, effervescent
SuspensionOral180 mg/5mL
Powder, for suspensionOral3.6 g
CapsuleOral400.000 mg
SuspensionOral3.600 g
Granule, for suspensionOral200 mg
Granule, for suspensionOral36 mg/mL
Granule, for suspensionOral400 mg
SuspensionOral36 mg/ml
CapsuleOral
Granule, for suspensionOral
Tablet, film coated200 mg
Tablet, film coated400 mg
SuspensionOral
Tablet, coatedOral
CapsuleOral435.120 mg
Prices
Unit descriptionCostUnit
Cedax 400 mg capsule16.13USD capsule
DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.
Patents
Patent NumberPediatric ExtensionApprovedExpires (estimated)Region
US5599557No1997-02-042014-02-04US flag
US4634697No1987-01-062009-10-01US flag

Properties

State
Solid
Experimental Properties
Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.0705 mg/mLALOGPS
logP0.31ALOGPS
logP-1.5Chemaxon
logS-3.8ALOGPS
pKa (Strongest Acidic)2.85Chemaxon
pKa (Strongest Basic)4.68Chemaxon
Physiological Charge-2Chemaxon
Hydrogen Acceptor Count8Chemaxon
Hydrogen Donor Count4Chemaxon
Polar Surface Area162.92 Å2Chemaxon
Rotatable Bond Count6Chemaxon
Refractivity97.02 m3·mol-1Chemaxon
Polarizability38.49 Å3Chemaxon
Number of Rings3Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterNoChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleYesChemaxon
Predicted ADMET Features
PropertyValueProbability
Human Intestinal Absorption-0.5755
Blood Brain Barrier-0.9679
Caco-2 permeable-0.8957
P-glycoprotein substrateSubstrate0.5424
P-glycoprotein inhibitor INon-inhibitor0.9274
P-glycoprotein inhibitor IINon-inhibitor0.9586
Renal organic cation transporterNon-inhibitor0.929
CYP450 2C9 substrateNon-substrate0.8531
CYP450 2D6 substrateNon-substrate0.8293
CYP450 3A4 substrateNon-substrate0.6007
CYP450 1A2 substrateNon-inhibitor0.8787
CYP450 2C9 inhibitorNon-inhibitor0.8817
CYP450 2D6 inhibitorNon-inhibitor0.9191
CYP450 2C19 inhibitorNon-inhibitor0.8833
CYP450 3A4 inhibitorNon-inhibitor0.9625
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.9387
Ames testNon AMES toxic0.7274
CarcinogenicityNon-carcinogens0.8961
BiodegradationNot ready biodegradable0.9688
Rat acute toxicity1.6446 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.9848
hERG inhibition (predictor II)Non-inhibitor0.9305
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397)

Spectra

Mass Spec (NIST)
Not Available
Spectra
SpectrumSpectrum TypeSplash Key
Predicted GC-MS Spectrum - GC-MSPredicted GC-MSsplash10-00l6-4429000000-9eb742eca3a39f7f33c7
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSsplash10-01q9-0902600000-c2388ee87fe4a0c57f08
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-01b9-0219000000-190493c1b5a3aa9e4571
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-0j5c-0392000000-5e8978fc10ac139bd0fa
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0079-0129000000-be37f9cbf73c4ef955d4
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-001c-9618000000-8887fe2fa2644176a32c
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-05tf-0942000000-0dc6c5afe7b099d98aaa
Predicted 1H NMR Spectrum1D NMRNot Applicable
Predicted 13C NMR Spectrum1D NMRNot Applicable
Chromatographic Properties
Collision Cross Sections (CCS)
AdductCCS Value (Å2)Source typeSource
[M-H]-191.9374743
predicted
DarkChem Lite v0.1.0
[M-H]-200.9991743
predicted
DarkChem Lite v0.1.0
[M-H]-185.77048
predicted
DeepCCS 1.0 (2019)
[M+H]+190.5948743
predicted
DarkChem Lite v0.1.0
[M+H]+200.9544743
predicted
DarkChem Lite v0.1.0
[M+H]+188.16603
predicted
DeepCCS 1.0 (2019)
[M+Na]+190.8420743
predicted
DarkChem Lite v0.1.0
[M+Na]+201.3120743
predicted
DarkChem Lite v0.1.0
[M+Na]+194.31775
predicted
DeepCCS 1.0 (2019)

Targets

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Kind
Protein
Organism
Escherichia coli (strain K12)
Pharmacological action
Yes
Actions
Inhibitor
General Function
Essential cell division protein that catalyzes cross-linking of the peptidoglycan cell wall at the division septum (PubMed:1103132, PubMed:3531167, PubMed:6450748, PubMed:7030331, PubMed:9614966). Required for localization of FtsN (PubMed:9282742).
Specific Function
penicillin binding
Gene Name
ftsI
Uniprot ID
P0AD68
Uniprot Name
Peptidoglycan synthase FtsI
Molecular Weight
63876.925 Da
References
  1. Wise R, Andrews JM, Ashby JP, Thornber D: Ceftibuten--in-vitro activity against respiratory pathogens, beta-lactamase stability and mechanism of action. J Antimicrob Chemother. 1990 Aug;26(2):209-13. [Article]
Kind
Protein
Organism
Escherichia coli (strain K12)
Pharmacological action
Yes
Actions
Inhibitor
General Function
Cell wall formation. Synthesis of cross-linked peptidoglycan from the lipid intermediates. The enzyme has a penicillin-insensitive transglycosylase N-terminal domain (formation of linear glycan strands) and a penicillin-sensitive transpeptidase C-terminal domain (cross-linking of the peptide subunits).
Specific Function
penicillin binding
Gene Name
mrcA
Uniprot ID
P02918
Uniprot Name
Penicillin-binding protein 1A
Molecular Weight
93635.545 Da
References
  1. Wise R, Andrews JM, Ashby JP, Thornber D: Ceftibuten--in-vitro activity against respiratory pathogens, beta-lactamase stability and mechanism of action. J Antimicrob Chemother. 1990 Aug;26(2):209-13. [Article]
Kind
Protein
Organism
Escherichia coli (strain K12)
Pharmacological action
Yes
Actions
Inhibitor
General Function
Cell wall formation. Synthesis of cross-linked peptidoglycan from the lipid intermediates. The enzyme has a penicillin-insensitive transglycosylase N-terminal domain (formation of linear glycan strands) and a penicillin-sensitive transpeptidase C-terminal domain (cross-linking of the peptide subunits).
Specific Function
penicillin binding
Gene Name
mrcB
Uniprot ID
P02919
Uniprot Name
Penicillin-binding protein 1B
Molecular Weight
94291.875 Da
References
  1. Wise R, Andrews JM, Ashby JP, Thornber D: Ceftibuten--in-vitro activity against respiratory pathogens, beta-lactamase stability and mechanism of action. J Antimicrob Chemother. 1990 Aug;26(2):209-13. [Article]
Kind
Protein
Organism
Escherichia coli (strain K12)
Pharmacological action
Yes
Actions
Inhibitor
General Function
Catalyzes cross-linking of the peptidoglycan cell wall (PubMed:3009484). Responsible for the determination of the rod shape of the cell (PubMed:1103132). Is probably required for lateral peptidoglycan synthesis and maintenance of the correct diameter during lateral and centripetal growth (PubMed:12519203).
Specific Function
penicillin binding
Gene Name
mrdA
Uniprot ID
P0AD65
Uniprot Name
Penicillin-binding protein 2
Molecular Weight
70856.1 Da
References
  1. Wise R, Andrews JM, Ashby JP, Thornber D: Ceftibuten--in-vitro activity against respiratory pathogens, beta-lactamase stability and mechanism of action. J Antimicrob Chemother. 1990 Aug;26(2):209-13. [Article]

Transporters

Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
Inhibitor
General Function
Electrogenic proton-coupled amino-acid transporter that transports oligopeptides of 2 to 4 amino acids with a preference for dipeptides. Transports neutral and monovalently charged peptides with a proton to peptide stoichiometry of 1:1 or 2:1 (By similarity) (PubMed:15521010, PubMed:18367661, PubMed:19685173, PubMed:26320580, PubMed:7896779, PubMed:8914574, PubMed:9835627). Primarily responsible for the absorption of dietary di- and tripeptides from the small intestinal lumen (By similarity). Mediates transepithelial transport of muramyl and N-formylated bacterial dipeptides contributing to recognition of pathogenic bacteria by the mucosal immune system (PubMed:15521010, PubMed:9835627)
Specific Function
dipeptide transmembrane transporter activity
Gene Name
SLC15A1
Uniprot ID
P46059
Uniprot Name
Solute carrier family 15 member 1
Molecular Weight
78805.265 Da
References
  1. Ganapathy ME, Prasad PD, Mackenzie B, Ganapathy V, Leibach FH: Interaction of anionic cephalosporins with the intestinal and renal peptide transporters PEPT 1 and PEPT 2. Biochim Biophys Acta. 1997 Mar 13;1324(2):296-308. [Article]
  2. Luckner P, Brandsch M: Interaction of 31 beta-lactam antibiotics with the H+/peptide symporter PEPT2: analysis of affinity constants and comparison with PEPT1. Eur J Pharm Biopharm. 2005 Jan;59(1):17-24. [Article]
  3. Saito H, Okuda M, Terada T, Sasaki S, Inui K: Cloning and characterization of a rat H+/peptide cotransporter mediating absorption of beta-lactam antibiotics in the intestine and kidney. J Pharmacol Exp Ther. 1995 Dec;275(3):1631-7. [Article]
  4. Terada T, Saito H, Mukai M, Inui K: Characterization of stably transfected kidney epithelial cell line expressing rat H+/peptide cotransporter PEPT1: localization of PEPT1 and transport of beta-lactam antibiotics. J Pharmacol Exp Ther. 1997 Jun;281(3):1415-21. [Article]
  5. Terada T, Saito H, Mukai M, Inui K: Recognition of beta-lactam antibiotics by rat peptide transporters, PEPT1 and PEPT2, in LLC-PK1 cells. Am J Physiol. 1997 Nov;273(5 Pt 2):F706-11. [Article]
  6. Tsuji A: Transporter-mediated Drug Interactions. Drug Metab Pharmacokinet. 2002;17(4):253-74. [Article]
  7. Menon RM, Barr WH: Transporters involved in apical and basolateral uptake of ceftibuten into Caco-2 cells. Biopharm Drug Dispos. 2002 Nov;23(8):317-26. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inhibitor
General Function
Proton-coupled amino-acid transporter that transports oligopeptides of 2 to 4 amino acids with a preference for dipeptides (PubMed:16434549, PubMed:18367661, PubMed:7756356). Transports neutral and anionic dipeptides with a proton to peptide stoichiometry of 2:1 or 3:1 (By similarity). In kidney, involved in the absorption of circulating di- and tripeptides from the glomerular filtrate (PubMed:7756356). Can also transport beta-lactam antibiotics, such as the aminocephalosporin cefadroxil, and other antiviral and anticancer drugs (PubMed:16434549). Transports the dipeptide-like aminopeptidase inhibitor bestatin (By similarity). Also able to transport carnosine (PubMed:31073693). Involved in innate immunity by promoting the detection of microbial pathogens by NOD-like receptors (NLRs) (By similarity). Mediates transport of bacterial peptidoglycans across the plasma membrane or, in macrophages, the phagosome membrane: catalyzes the transport of certain bacterial peptidoglycans, such as muramyl dipeptide (MDP), the NOD2 ligand (PubMed:20406817)
Specific Function
dipeptide transmembrane transporter activity
Gene Name
SLC15A2
Uniprot ID
Q16348
Uniprot Name
Solute carrier family 15 member 2
Molecular Weight
81782.77 Da
References
  1. Ganapathy ME, Prasad PD, Mackenzie B, Ganapathy V, Leibach FH: Interaction of anionic cephalosporins with the intestinal and renal peptide transporters PEPT 1 and PEPT 2. Biochim Biophys Acta. 1997 Mar 13;1324(2):296-308. [Article]
  2. Terada T, Saito H, Mukai M, Inui K: Recognition of beta-lactam antibiotics by rat peptide transporters, PEPT1 and PEPT2, in LLC-PK1 cells. Am J Physiol. 1997 Nov;273(5 Pt 2):F706-11. [Article]
  3. Luckner P, Brandsch M: Interaction of 31 beta-lactam antibiotics with the H+/peptide symporter PEPT2: analysis of affinity constants and comparison with PEPT1. Eur J Pharm Biopharm. 2005 Jan;59(1):17-24. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
Curator comments
Substrate profile was investigated in in vitro studies using HEK293 cells.
General Function
Secondary active transporter that functions as a Na(+)-independent organic anion (OA)/dicarboxylate antiporter where the uptake of one molecule of OA into the cell is coupled with an efflux of one molecule of intracellular dicarboxylate such as 2-oxoglutarate or glutarate (PubMed:11669456, PubMed:11907186, PubMed:14675047, PubMed:22108572, PubMed:23832370, PubMed:28534121, PubMed:9950961). Mediates the uptake of OA across the basolateral side of proximal tubule epithelial cells, thereby contributing to the renal elimination of endogenous OA from the systemic circulation into the urine (PubMed:9887087). Functions as a biopterin transporters involved in the uptake and the secretion of coenzymes tetrahydrobiopterin (BH4), dihydrobiopterin (BH2) and sepiapterin to urine, thereby determining baseline levels of blood biopterins (PubMed:28534121). Transports prostaglandin E2 (PGE2) and prostaglandin F2-alpha (PGF2-alpha) and may contribute to their renal excretion (PubMed:11907186). Also mediates the uptake of cyclic nucleotides such as cAMP and cGMP (PubMed:26377792). Involved in the transport of neuroactive tryptophan metabolites kynurenate (KYNA) and xanthurenate (XA) and may contribute to their secretion from the brain (PubMed:22108572, PubMed:23832370). May transport glutamate (PubMed:26377792). Also involved in the disposition of uremic toxins and potentially toxic xenobiotics by the renal organic anion secretory pathway, helping reduce their undesired toxicological effects on the body (PubMed:11669456, PubMed:14675047). Uremic toxins include the indoxyl sulfate (IS), hippurate/N-benzoylglycine (HA), indole acetate (IA), 3-carboxy-4- methyl-5-propyl-2-furanpropionate (CMPF) and urate (PubMed:14675047, PubMed:26377792). Xenobiotics include the mycotoxin ochratoxin (OTA) (PubMed:11669456). May also contribute to the transport of organic compounds in testes across the blood-testis-barrier (PubMed:35307651)
Specific Function
alpha-ketoglutarate transmembrane transporter activity
Gene Name
SLC22A6
Uniprot ID
Q4U2R8
Uniprot Name
Solute carrier family 22 member 6
Molecular Weight
61815.78 Da
References
  1. VanWert AL, Gionfriddo MR, Sweet DH: Organic anion transporters: discovery, pharmacology, regulation and roles in pathophysiology. Biopharm Drug Dispos. 2010 Jan;31(1):1-71. doi: 10.1002/bdd.693. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
Inhibitor
Curator comments
Substrate and inhibitor profile was investigated in vitro using human OAT3 expressed on HEK293 cells.
General Function
Functions as an organic anion/dicarboxylate exchanger that couples organic anion uptake indirectly to the sodium gradient (PubMed:14586168, PubMed:15644426, PubMed:15846473, PubMed:16455804, PubMed:31553721). Transports organic anions such as estrone 3-sulfate (E1S) and urate in exchange for dicarboxylates such as glutarate or ketoglutarate (2-oxoglutarate) (PubMed:14586168, PubMed:15846473, PubMed:15864504, PubMed:22108572, PubMed:23832370). Plays an important role in the excretion of endogenous and exogenous organic anions, especially from the kidney and the brain (PubMed:11306713, PubMed:14586168, PubMed:15846473). E1S transport is pH- and chloride-dependent and may also involve E1S/cGMP exchange (PubMed:26377792). Responsible for the transport of prostaglandin E2 (PGE2) and prostaglandin F2(alpha) (PGF2(alpha)) in the basolateral side of the renal tubule (PubMed:11907186). Involved in the transport of neuroactive tryptophan metabolites kynurenate and xanthurenate (PubMed:22108572, PubMed:23832370). Functions as a biopterin transporters involved in the uptake and the secretion of coenzymes tetrahydrobiopterin (BH4), dihydrobiopterin (BH2) and sepiapterin to urine, thereby determining baseline levels of blood biopterins (PubMed:28534121). May be involved in the basolateral transport of steviol, a metabolite of the popular sugar substitute stevioside (PubMed:15644426). May participate in the detoxification/ renal excretion of drugs and xenobiotics, such as the histamine H(2)-receptor antagonists fexofenadine and cimetidine, the antibiotic benzylpenicillin (PCG), the anionic herbicide 2,4-dichloro-phenoxyacetate (2,4-D), the diagnostic agent p-aminohippurate (PAH), the antiviral acyclovir (ACV), and the mycotoxin ochratoxin (OTA), by transporting these exogenous organic anions across the cell membrane in exchange for dicarboxylates such as 2-oxoglutarate (PubMed:11669456, PubMed:15846473, PubMed:16455804). Contributes to the renal uptake of potent uremic toxins (indoxyl sulfate (IS), indole acetate (IA), hippurate/N-benzoylglycine (HA) and 3-carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF)), pravastatin, PCG, E1S and dehydroepiandrosterone sulfate (DHEAS), and is partly involved in the renal uptake of temocaprilat (an angiotensin-converting enzyme (ACE) inhibitor) (PubMed:14675047). May contribute to the release of cortisol in the adrenals (PubMed:15864504). Involved in one of the detoxification systems on the choroid plexus (CP), removes substrates such as E1S or taurocholate (TC), PCG, 2,4-D and PAH, from the cerebrospinal fluid (CSF) to the blood for eventual excretion in urine and bile (By similarity). Also contributes to the uptake of several other organic compounds such as the prostanoids prostaglandin E(2) and prostaglandin F(2-alpha), L-carnitine, and the therapeutic drugs allopurinol, 6-mercaptopurine (6-MP) and 5-fluorouracil (5-FU) (By similarity). Mediates the transport of PAH, PCG, and the statins pravastatin and pitavastatin, from the cerebrum into the blood circulation across the blood-brain barrier (BBB). In summary, plays a role in the efflux of drugs and xenobiotics, helping reduce their undesired toxicological effects on the body (By similarity)
Specific Function
organic anion transmembrane transporter activity
Gene Name
SLC22A8
Uniprot ID
Q8TCC7
Uniprot Name
Organic anion transporter 3
Molecular Weight
59855.585 Da
References
  1. VanWert AL, Gionfriddo MR, Sweet DH: Organic anion transporters: discovery, pharmacology, regulation and roles in pathophysiology. Biopharm Drug Dispos. 2010 Jan;31(1):1-71. doi: 10.1002/bdd.693. [Article]

Drug created at July 23, 2007 13:06 / Updated at June 02, 2024 21:53