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Record Information
Version3.6
Creation Date2012-09-06 15:16:51 UTC
Update Date2016-02-11 01:31:48 UTC
HMDB IDHMDB15186
Secondary Accession NumbersNone
Metabolite Identification
Common NamePenicillin G
DescriptionPenicillin G is narrow spectrum antibiotic used to treat infections caused by susceptible bacteria. It is a natural penicillin antibiotic that is administered intravenously or intramuscularly due to poor oral absorption. Penicillin G may also be used in some cases as prophylaxis against susceptible organisms. Natural penicillins are considered the drugs of choice for several infections caused by susceptible gram positive aerobic organisms, such as Streptococcus pneumoniae, groups A, B, C and G streptococci, nonenterococcal group D streptococci, viridans group streptococci, and non-penicillinase producing staphylococcus. Aminoglycosides may be added for synergy against group B streptococcus (S. agalactiae), S. viridans, and Enterococcus faecalis. The natural penicillins may also be used as first or second line agents against susceptible gram positive aerobic bacilli such as Bacillus anthracis, Corynebacterium diphtheriae, and Erysipelothrix rhusiopathiae. Natural penicillins have limited activity against gram negative organisms; however, they may be used in some cases to treat infections caused by Neisseria meningitidis and Pasteurella. They are not generally used to treat anaerobic infections. Resistance patterns, susceptibility and treatment guidelines vary across regions.
Structure
Thumb
Synonyms
ValueSource
(2S,5R,6R)-3,3-Dimethyl-7-oxo-6-(phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acidChEBI
6-(2-phenylacetamido)Penicillanic acidChEBI
BencilpenicilinaChEBI
BenzylpenicillineChEBI
Benzylpenicillinic acidChEBI
BenzylpenicillinumChEBI
Free penicillin IIChEBI
Penicillin gChEBI
PGChEBI
(2S,5R,6R)-3,3-Dimethyl-7-oxo-6-(phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylateGenerator
6-(2-phenylacetamido)PenicillanateGenerator
BenzylpenicillinateGenerator
Chemical FormulaC16H18N2O4S
Average Molecular Weight334.39
Monoisotopic Molecular Weight334.098727764
IUPAC Name(2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
Traditional Namepenicillin G
CAS Registry Number61-33-6
SMILES
[H][C@]12SC(C)(C)[C@@H](N1C(=O)[C@H]2NC(=O)CC1=CC=CC=C1)C(O)=O
InChI Identifier
InChI=1S/C16H18N2O4S/c1-16(2)12(15(21)22)18-13(20)11(14(18)23-16)17-10(19)8-9-6-4-3-5-7-9/h3-7,11-12,14H,8H2,1-2H3,(H,17,19)(H,21,22)/t11-,12+,14-/m1/s1
InChI KeyInChIKey=JGSARLDLIJGVTE-MBNYWOFBSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as penicillins. These are organic compounds containing the penicillin core structure, which is structurally characterized by a penam ring bearing two methyl groups at position 2, and an amide group at position 6 [starting from the sulfur atom at position 1].
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassLactams
Sub ClassBeta lactams
Direct ParentPenicillins
Alternative Parents
Substituents
  • Penicillin
  • N-acyl-alpha amino acid or derivatives
  • Phenylacetamide
  • Alpha-amino acid or derivatives
  • Benzenoid
  • Monocyclic benzene moiety
  • Thiazolidine
  • Tertiary carboxylic acid amide
  • Tertiary amine
  • Secondary carboxylic acid amide
  • Carboxamide group
  • Azetidine
  • Azacycle
  • Dialkylthioether
  • Hemithioaminal
  • Thioether
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Carboxylic acid amide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Drug
Biofunction
  • Anti-Bacterial Agents
  • Penicillins
Application
  • Pharmaceutical
Cellular locations
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point214 - 217 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility2.85e-01 g/LNot Available
LogP1.5Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.28 mg/mLALOGPS
logP1.92ALOGPS
logP1.08ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)3.53ChemAxon
pKa (Strongest Basic)-2.6ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area86.71 Å2ChemAxon
Rotatable Bond Count4ChemAxon
Refractivity84.53 m3·mol-1ChemAxon
Polarizability33.54 Å3ChemAxon
Number of Rings3ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
SpectraNot Available
Biological Properties
Cellular Locations
  • Membrane
Biofluid Locations
  • Blood
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB01053
  • Not Applicable
details
UrineExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB01053
  • Not Applicable
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB01053
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID5693
KEGG Compound IDC05551
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB15186
Metagene LinkHMDB15186
METLIN IDNot Available
PubChem Compound5904
PDB IDPNN
ChEBI ID18208
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Eagle H, Newman E, Musselman AD, Robinson M, Birmingham M: THE RENAL CLEARANCE OF PENICILLINS F, G, K, AND X IN RABBITS AND MAN. J Clin Invest. 1947 Sep;26(5):903-18. [16695494 ]

Transporters

General function:
Involved in transporter activity
Specific function:
Mediates the Na(+)-independent transport of organic anions such as pravastatin, taurocholate, methotrexate, dehydroepiandrosterone sulfate, 17-beta-glucuronosyl estradiol, estrone sulfate, prostaglandin E2, thromboxane B2, leukotriene C3, leukotriene E4, thyroxine and triiodothyronine. May play an important role in the clearance of bile acids and organic anions from the liver
Gene Name:
SLCO1B1
Uniprot ID:
Q9Y6L6
Molecular weight:
76448.0
References
  1. Tamai I, Nezu J, Uchino H, Sai Y, Oku A, Shimane M, Tsuji A: Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family. Biochem Biophys Res Commun. 2000 Jun 24;273(1):251-60. [10873595 ]
General function:
Involved in ion transmembrane transporter activity
Specific function:
Sodium-ion dependent, high affinity carnitine transporter. Involved in the active cellular uptake of carnitine. Transports one sodium ion with one molecule of carnitine. Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium. Also relative uptake activity ratio of carnitine to TEA is 11.3
Gene Name:
SLC22A5
Uniprot ID:
O76082
Molecular weight:
62751.1
References
  1. Ganapathy ME, Huang W, Rajan DP, Carter AL, Sugawara M, Iseki K, Leibach FH, Ganapathy V: beta-lactam antibiotics as substrates for OCTN2, an organic cation/carnitine transporter. J Biol Chem. 2000 Jan 21;275(3):1699-707. [10636865 ]
General function:
Involved in transporter activity
Specific function:
Mediates the Na(+)-independent transport of organic anions such as taurocholate, the prostaglandins PGD2, PGE1, PGE2, leukotriene C4, thromboxane B2 and iloprost
Gene Name:
SLCO2B1
Uniprot ID:
O94956
Molecular weight:
76697.9
References
  1. Tamai I, Nezu J, Uchino H, Sai Y, Oku A, Shimane M, Tsuji A: Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family. Biochem Biophys Res Commun. 2000 Jun 24;273(1):251-60. [10873595 ]
General function:
Involved in transporter activity
Specific function:
Mediates saturable uptake of estrone sulfate, dehydroepiandrosterone sulfate and related compounds
Gene Name:
SLC22A11
Uniprot ID:
Q9NSA0
Molecular weight:
59970.9
References
  1. Babu E, Takeda M, Narikawa S, Kobayashi Y, Enomoto A, Tojo A, Cha SH, Sekine T, Sakthisekaran D, Endou H: Role of human organic anion transporter 4 in the transport of ochratoxin A. Biochim Biophys Acta. 2002 Jun 12;1590(1-3):64-75. [12063169 ]
  2. Takeda M, Khamdang S, Narikawa S, Kimura H, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of methotrexate transport and its drug interactions with human organic anion transporters. J Pharmacol Exp Ther. 2002 Aug;302(2):666-71. [12130730 ]
General function:
Involved in ion transmembrane transporter activity
Specific function:
Sodium-ion dependent, low affinity carnitine transporter. Probably transports one sodium ion with one molecule of carnitine. Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium. Relative uptake activity ratio of carnitine to TEA is 1.78. A key substrate of this transporter seems to be ergothioneine (ET)
Gene Name:
SLC22A4
Uniprot ID:
Q9H015
Molecular weight:
62154.5
References
  1. Yabuuchi H, Tamai I, Nezu J, Sakamoto K, Oku A, Shimane M, Sai Y, Tsuji A: Novel membrane transporter OCTN1 mediates multispecific, bidirectional, and pH-dependent transport of organic cations. J Pharmacol Exp Ther. 1999 May;289(2):768-73. [10215651 ]
General function:
Involved in transporter activity
Specific function:
Proton-coupled intake of oligopeptides of 2 to 4 amino acids with a preference for dipeptides. May constitute a major route for the absorption of protein digestion end-products
Gene Name:
SLC15A1
Uniprot ID:
P46059
Molecular weight:
78805.3
References
  1. 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. [15567297 ]
  2. Tsuji A: Transporter-mediated Drug Interactions. Drug Metab Pharmacokinet. 2002;17(4):253-74. [15618677 ]
General function:
Involved in transporter activity
Specific function:
Proton-coupled intake of oligopeptides of 2 to 4 amino acids with a preference for dipeptides
Gene Name:
SLC15A2
Uniprot ID:
Q16348
Molecular weight:
81782.8
References
  1. 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. [15567297 ]
General function:
Involved in transporter activity
Specific function:
Mediates the Na(+)-independent transport of organic anions such as the thyroid hormones T3 (triiodo-L-thyronine), T4 (thyroxine) and rT3, and of estrone-3-sulfate and taurocholate
Gene Name:
SLCO4A1
Uniprot ID:
Q96BD0
Molecular weight:
77192.5
References
  1. Tamai I, Nezu J, Uchino H, Sai Y, Oku A, Shimane M, Tsuji A: Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family. Biochem Biophys Res Commun. 2000 Jun 24;273(1):251-60. [10873595 ]
General function:
Involved in transporter activity
Specific function:
Mediates the Na(+)-independent transport of organic anions such as estrone-3-sulfate (PubMed:10873595). Mediates transport of prostaglandins (PG) E1 and E2, thyroxine (T4), deltorphin II, BQ-123 and vasopressin, but not DPDPE (a derivative of enkephalin lacking an N-terminal tyrosine residue), estrone-3- sulfate, taurocholate, digoxin nor DHEAS (PubMed:16971491)
Gene Name:
SLCO3A1
Uniprot ID:
Q9UIG8
Molecular weight:
76552.1
References
  1. Tamai I, Nezu J, Uchino H, Sai Y, Oku A, Shimane M, Tsuji A: Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family. Biochem Biophys Res Commun. 2000 Jun 24;273(1):251-60. [10873595 ]
General function:
Involved in ion transmembrane transporter activity
Specific function:
Involved in the renal elimination of endogenous and exogenous organic anions. Functions as organic anion exchanger when the uptake of one molecule of organic anion is coupled with an efflux of one molecule of endogenous dicarboxylic acid (glutarate, ketoglutarate, etc). Mediates the sodium-independent uptake of 2,3-dimercapto-1-propanesulfonic acid (DMPS). Mediates the sodium-independent uptake of p- aminohippurate (PAH), ochratoxin (OTA), acyclovir (ACV), 3'-azido- 3-'deoxythymidine (AZT), cimetidine (CMD), 2,4-dichloro- phenoxyacetate (2,4-D), hippurate (HA), indoleacetate (IA), indoxyl sulfate (IS) and 3-carboxy-4-methyl-5-propyl-2- furanpropionate (CMPF), cidofovir, adefovir, 9-(2- phosphonylmethoxyethyl) guanine (PMEG), 9-(2- phosphonylmethoxyethyl) diaminopurine (PMEDAP) and edaravone sulfate. PAH uptake is inhibited by p- chloromercuribenzenesulphonate (PCMBS), diethyl pyrocarbonate (DEPC), sulindac, diclofenac, carprofen, glutarate and okadaic acid. PAH uptake is inhibited by benzothiazolylcysteine (BTC), S-chlorotrifluoroethylcysteine (CTFC), cysteine S-conjugates S-dichlorovinylcysteine (DCVC), furosemide, steviol, phorbol 12-myristate 13-acetate (PMA), calcium ionophore A23187, benzylpenicillin, furosemide, indomethacin, bumetamide, losartan, probenecid, phenol red, urate, and alpha-ketoglutarate
Gene Name:
SLC22A6
Uniprot ID:
Q4U2R8
Molecular weight:
61815.8
References
  1. Jung KY, Takeda M, Kim DK, Tojo A, Narikawa S, Yoo BS, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of ochratoxin A transport by human organic anion transporters. Life Sci. 2001 Sep 21;69(18):2123-35. [11669456 ]
  2. Takeda M, Khamdang S, Narikawa S, Kimura H, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of methotrexate transport and its drug interactions with human organic anion transporters. J Pharmacol Exp Ther. 2002 Aug;302(2):666-71. [12130730 ]
  3. Hosoyamada M, Sekine T, Kanai Y, Endou H: Molecular cloning and functional expression of a multispecific organic anion transporter from human kidney. Am J Physiol. 1999 Jan;276(1 Pt 2):F122-8. [9887087 ]
  4. Lu R, Chan BS, Schuster VL: Cloning of the human kidney PAH transporter: narrow substrate specificity and regulation by protein kinase C. Am J Physiol. 1999 Feb;276(2 Pt 2):F295-303. [9950961 ]
  5. Jariyawat S, Sekine T, Takeda M, Apiwattanakul N, Kanai Y, Sophasan S, Endou H: The interaction and transport of beta-lactam antibiotics with the cloned rat renal organic anion transporter 1. J Pharmacol Exp Ther. 1999 Aug;290(2):672-7. [10411577 ]
  6. Hasegawa M, Kusuhara H, Sugiyama D, Ito K, Ueda S, Endou H, Sugiyama Y: Functional involvement of rat organic anion transporter 3 (rOat3; Slc22a8) in the renal uptake of organic anions. J Pharmacol Exp Ther. 2002 Mar;300(3):746-53. [11861777 ]