RCSB PDB - CIT Ligand Summary Page

Chemical Component Summary
Name	CITRIC ACID
Identifiers	2-hydroxypropane-1,2,3-tricarboxylic acid
Formula	C₆ H₈ O₇
Molecular Weight	192.12
Type	NON-POLYMER
Isomeric SMILES	C(C(=O)O)C(CC(=O)O)(C(=O)O)O
InChI	InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
InChIKey	KRKNYBCHXYNGOX-UHFFFAOYSA-N

Chemical Details
Formal Charge	0
Atom Count	21
Chiral Atom Count	0
Bond Count	20
Aromatic Bond Count	0

Drug Info: DrugBank

DrugBank ID	DB04272
Name	Citric acid
Groups	approved nutraceutical vet_approved
Description	A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability. Citric acid was one of active ingredients in Phexxi, a non-hormonal contraceptive agent that was approved by the FDA on May 2020.[L14120]
Synonyms	Citric acid Acidum citricum Citric Acid, Anhydrous 3-carboxy-3-hydroxypentane-1,5-dioic acid ácido cítrico Citric acid monoglyceride Citric acid,anhydrous Anhydrous citric acid Citronensäure 2-hydroxy-1,2,3-propanetricarboxyic acid 2-Hydroxytricarballylic acid Citric acid monohydrate
Brand Names	Sterile Cord Blood Collection Unit (MSC127D) Drug Mart Effervescent Pain Relief IMUFLEX WB-RP Blood Bag System with Integral Whole Blood Leukocyte Reduction Filter (Removing Platelets) with Diversion Blood Sampling Arm Anticoagulant Citrate Phosphate Dextrose (CPD) AND OPTISOL (AS-5) Red Cell Preservative Picodan Hemosate Ultra Hs0125 Alka-Seltzer Lemon Lime Leukotrap WB System Potassium Citrate-Sodium Citrate-Citric Acid Citrasate C2125 Hemasate Ultra Hs1150 Citracleen Urologic G for Irrigation Pico-salax Potassium Citrate-Citric Acid Purilab MTL1 Leucoflex Family Wellness Effervescent Antacid and Pain Relief Hemosate Ultra Hs4125 CPD Solution Cytra-2 TERUFLEX Blood Bag System Anticoagulant Citrate Phosphate Dextrose (CPD) AND OPTISOL Red Cell Preservative Cpd Adenine Cpda 1 Anticoagulant Solution Citrate Phosphate Dextrose (CPD) bdr Re-action natural low base skin refiner exfoliation essence Virtrate-3 Av-1000 Purg-odan Effervescent Antacid and Pain Relief Lytren Rhs Liq Tricitrates Hand Washing Sanitize/Disinfect Wipes Leucoflex CGP Citrasate C0125 DG Health Effervescent Antacid and Pain Relief HyVee Health Effervescent Antacid and Pain Relief Citrocarbonate Eff Pws Sal De Uvas Picot Whitening Lemon Peel Picot Plus Effervescent Cpd/adsol Acd-A Alka Seltzer Original Hemosate Ultra Hs1150 Hemasate Ultra Hs2150 Oracit Sterile Cord Blood Collection Unit (MSC128D) TERUFLEX Blood Bag System with Blood Sampling Arm Anticoagulant Citrate Phosphate Dextrose (CPD) AND OPTISOL (AS-5) Red Cell Preservative Alka-Seltzer Heartburn Nutricel Additive System - CP2D Phexxi Adsol Red Cell Preservation Acd A Citrasate C3150 Heparin Sodium In 5% Dextrose Injection, 25000unit/500ml Pain Relief Fast Relief Oral Purgative Nature Clean Citrasate C4125 Neutra-seltzer Anticoagulant Cit Phos Dex Adenine Sol USP Green Fresh Hemosate Ultra Hs3150 Top Value Effervescent Pain Relief Anticoagulant Citrate Dextrose Solution USP (acd) Formula B Sodium Citrate and Citric Acid Alka Seltzer Sal de Uvas Picot Cpda-1 Additive Formula 3 Bicaruvas Hand Sanitizer Alka-seltzer Flavoured - Evt Family Care Effervescent Antacid and Pain Relief Smart Sense Effervescent Antacid and Pain Relief Sterile Cord Blood Collection Unit Anticoagulant Citrate Dextrose A ACD-A Rite Aid Antacid and Pain Relief Leader Effervescent Antacid and Pain Relief Haemonetics Anticoagulant Citrate Dextrose Solution TERUFLEX Blood Bag System with Diversion Blood Sampling Arm Anticoagulant Citrate Phosphate Dextrose (CPD) AND OPTISOL (AS-5) Red Cell Preservative Alka-Seltzer Extra Strength Citric Buffered Normal Saline Virtrate-2 Effervescent Pain Relief Fast Relief Care One Original Antacid and Pain Relief Quality Choice Effervescent Antacid and Pain Relief Publix Fast Relief Effervescent IMUFLEX WB-SP Blood Bag System with Integral Whole Blood Leukocyte Reduction Filter (Saving Platelets) with Diversion Blood Sampling Arm Anticoagulant Citrate Phosphate Dextrose (CPD) and OPTISOL (AS-5) Red Cell Preservative Equate Effervescent Antacid and Pain Relief Walgreens Effervescent Pain Relief Freds Effervescent Antacid Pain Relief Alka-Seltzer XTRA STRENGTH Citrasate C2150 Potassium Citrate Citric Acid Crystals EnLyte ACD Solution Modified Cytra-K IDkit HP ONE Haemonetics Additive Solution Formula 3 (AS-3) Anticoagulant Citrate Dextrose A Prepopik CPD/ADSOL Red Cell Preservation Solution System (PL 2209) Alka-seltzer Flavoured Lot Hemasate Ultra Hs2125 Good Sense Effervescent Antacid and Pain Relief Vida Mia Pain Relief CPDA-1 Blood Collection System Citrasate C1150 Citrasate C3125 Alka-Seltzer Gold Premier Value Antacid and Pain Relief Medicine Sodium Citrate-Citric Acid Up and Up Antacid and Pain Relief Anticoagulant Citrate Dextr Sol Formula A USP Zee-Seltzer Antacid and Pain Reliever Haemonetics Anticoagulant Citrate Phosphate Double Dextrose Solution (CP2D) Heparin Sodium In 0.9% Sodium Chloride Injection Cytra-K Crystals Stop Hair Meijer Effervescent Antacid and Pain Relief Cytra 3 Citric Acid Renacidin A-C-D Solution As 3 Hemosate Ultra Hs3125 Av100 Clenpiq TopCare Effervescent Antacid and Pain Relief Riga Purgative Lemon Flav Liq Citric Acid Wipes Additive Solution Formula 3 As-3 Alka-Seltzer Blood Pack Unit Cpd All-Natural Pen Spray Alka-Seltzer HEARTBURN ACD Blood-Pack Units (PL 146 Plastic) E-Z-gas II Effervescent Pain Relief Equaline Effervescent Antacid and Pain Relief Pall Sterile Cord Blood Collection Unit Cpd Lytren Anticoagulant Citrate Dextrose Solution USP (acd) Formula A Hemasate Ultra Hs3125 KID-CLEAN Epiguard (Herbage Basis germ Growth InhibitsSolution) Citrasate C10125 HEB Extra Strength Effervescent Antacid and Pain Relief Imuflex Wb-SP Blood Bag System With Integral Whole Blood Leukocyte Reduction Filter (saving Platelets) With Diversion Blood Sampling Arm Kroger Effervescent Antacid and Pain Relief Alka-Seltzer Original Best Choice Effervescent Antacid Pain Relief Urologic Solution G Anticoagulant Citrate Dextrose Solution-A Citrasate C1125 Alka Seltzer Flavoured Effervescent Pain Relief Fast Relief Fast Relief PramLyte Signature Care Effervescent Antacid and Pain Relief Hemasate Ultra Hs0125 Medique Medi Seltzer TERUFLEX Blood Bag System Anticoagulant Citrate Phosphate Dextrose Adenine (CPDA-1) Alka Seltzer Evt Bt100s CVS Health Antacid and Pain Reliever Hemosate Ultra Hs2150 Potassium Citrate and Citric Acid Puralor Sterile Cord Blood Collection Unit (msc123d) WinCo Foods Effervescent Antacid and Pain Relief Hemasate Ultra Hs3150 Bromo Seltzer Virtrate-K Hemosate Ultra Hs1125 Picoflo Disinfect Wipes B100 Hemasate Ultra Hs4125 Hemosate Ultra Hs2125 ADSOL Red Cell Preservation Solution System in Plastic Container (PL 146 Plastic) Hemasate Ultra Hs1125 Anticoagulant Citrate Phosphate Dextrose (CPD) Blood-Pack Units in PL 146 Plastic
Categories	Acid Preparations Acidifying Activity Acids, Acyclic Alimentary Tract and Metabolism Calcium Chelating Activity Calcium Chelating Agents Calculi Dissolution Agent Chelating Agents Citrates Compounds used in a research, industrial, or household setting Decreased Coagulation Factor Activity Digestives, Incl. Enzymes Hematologic Agents Sequestering Agents Tricarboxylic Acids Urinary Acidifying Agents Urinary Alkalinisers
ATC-Code	A09AB04
CAS number	77-92-9

Drug Targets

Name	Target Sequence	Pharmacological Action	Actions
Fumarate hydratase class II	MNTVRSEKDSMGAIDVPADKLWGAQTQRSLEHFRISTEKMPTSLIHALAL...	unknown	inhibitor
6-phosphogluconolactonase	MEKTVIYLLEDGYVDFVVEKIRTKMEKLLEEKDKIFVVLAGGRTPLPVYE...	unknown
L-amino-acid oxidase	MAPLALHLLVLVPILLSLVASQDWKAERSQDPFEKCMQDPDYEQLLKVVT...	unknown
Carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 1	MDSSAVITQISKEEARGPLRGKGDQKSAASQKPRSRGILHSLFCCVCRDD...	unknown
Cytochrome c peroxidase	DNLMERANSMFEPIPKYPPVIDGNELTQAKVELGKMEFFEPRLSSSHLIS...	unknown
Hepatocyte growth factor-regulated tyrosine kinase substrate	MGRGSGTFERLLDKATSQLLLETDWESILQICDLIRQGDTQAKYAVNSIK...	unknown
Invasin	MVFQPISEFLLIRNAGMSMYFNKIISFNIISRIVICIFLICGMFMAGASE...	unknown
Intron-associated endonuclease 1	MKSGIYQIKNTLNNKVYVGSAKDFEKRWKRHFKDLEKGCHSSIKLQRSFN...	unknown
Short tail fiber protein	MSNNTYQHVSNESRYVKFDPTDTNFPPEITDVQAAIAAISPAGVNGVPDA...	unknown
Malate dehydrogenase, mitochondrial	MLSALARPASAALRRSFSTSAQNNAKVAVLGASGGIGQPLSLLLKNSPLV...	unknown
N5-carboxyaminoimidazole ribonucleotide mutase	MSETAPLPSASSALEDKAASAPVVGIIMGSQSDWETMRHADALLTELEIP...	unknown
50S ribosomal protein L4	MAQVDLLNVKGEKVGTLEISDFVFNIDPNYDVMWRYVDMQLSNRRAGTAS...	unknown
Carboxypeptidase B	MLALLVLVTVALASAHHGGEHFEGEKVFRVNVEDENHINIIRELASTTQI...	unknown
Hexon protein	MATPSMMPQWSYMHISGQDASEYLSPGLVQFARATETYFSLNNKFRNPTV...	unknown
Riboflavin biosynthesis protein RibF	MVVSIGVFDGVHIGHQKVLRTMKEIAFFRKDDSLIYTISYPPEYFLPDFP...	unknown
Beta-fructosidase	MFKPNYHFFPITGWMNDPNGLIFWKGKYHMFYQYNPRKPEWGNICWGHAV...	unknown
Putative stringent starvation protein A	MAVAANKRSVMTLFSGPTDIFSHQVRIVLAEKGVSVEIEQVEADNLPQDL...	unknown
Citrate synthase	MEVARGLEGVLFTESRMCYIDGQQGKLYYYGIPIQELAEKSSFEETTFLL...	unknown
RNA 3'-terminal phosphate cyclase	MKRMIALDGAQGEGGGQILRSALSLSMITGQPFTITSIRAGRAKPGLLRQ...	unknown
U6 snRNA-associated Sm-like protein LSm6	MSLRKQTPSDFLKQIIGRPVVVKLNSGVDYRGVLACLDGYMNIALEQTEE...	unknown
Pleckstrin homology domain-containing family A member 1	MPYVDRQNRICGFLDIEENENSGKFLRRYFILDTREDSFVWYMDNPQNLP...	unknown
Fe(3+)-binding periplasmic protein	MKLRISSLGPVALLASSMMLAFGAQAASADQGIVIYNAQHENLVKSWVDG...	unknown
Signal recognition particle receptor FtsY	MGLFDFLKKGLQKTKETFFGRVVKLLKGKKLDDETREELEELLIQADVGV...	unknown
Nicotinate-nucleotide adenylyltransferase	MKSLQALFGGTFDPVHYGHLKPVETLANLIGLTRVTIIPNNVPPHRPQPE...	unknown
N utilization substance protein B homolog	MKTPRRRMRLAVFKALFQHEFRRDEDLEQILEEILDETYDKKAKEDARRY...	unknown
Complement component C8 gamma chain	MLPPGTATLLTLLLAAGSLGQKPQRPRRPASPISTIQPKANFDAQQFAGT...	unknown
Ribonucleoside-diphosphate reductase subunit beta	MLTGKMKLIDRVSAINWNWLQDDKDAEVWDRLTGNFWLPEKVPVSNDLPS...	unknown
Glutamine synthetase 1	MTEKTPDDVFKLAKDEKVEYVDVRFCDLPGIMQHFTIPASAFDKSVFDDG...	unknown
Citrate synthase	MTEPTIHKGLAGVTADVTAISKVNSDTNSLLYRGYPVQELAAKCSFEQVA...	unknown
Prostaglandin F synthase	MALTQSLKLSNGVMMPVLGFGMWKLQDGNEAETATMWAIKSGYRHIDTAA...	unknown
Adenine phosphoribosyltransferase	MADSELQLVEQRIRSFPDFPTPGVVFRDISPVLKDPASFRAAIGLLARHL...	unknown
Glucose-1-phosphate thymidylyltransferase	MKRKGIILAGGSGTRLHPATLAISKQLLPVYDKPMIYYPLSTLMLAGIRE...	unknown
Beta-lactamase 2	MKKNTLLKVGLCVGLLGTIQFVSTISSVQASQKVEKTVIKNETGTISISQ...	unknown
Glyoxalase family protein	MAKNKLLRMDNVSIVVESLDNAISFFEEIGLNLEGRANVEGEWAGRVTGL...	unknown
Laccase domain protein YfiH	MSKLIVPQWPQPKGVAACSSTRIGGVSLPPYDSLNLGAHCGDNPDHVEEN...	unknown
Ribose-5-phosphate isomerase A	MNQLEMKKLAAQAALQYVKADTIVGVGSGSTVNCFIEALGTIKDKIQGAV...	unknown
GMP synthase [glutamine-hydrolyzing]	MTENIHKHRILILDFGSQYTQLVARRVRELGVYCELWAWDVTEAQIRDFN...	unknown
Aldose reductase	MASRLLLNNGAKMPILGLGTWKSPPGQVTEAVKVAIDVGYRHIDCAHVYQ...	unknown	inhibitor
Inosine triphosphate pyrophosphatase	MAASLVGKKIVFVTGNAKKLEEVVQILGDKFPCTLVAQKIDLPEYQGEPD...	unknown
Citrate synthase, mitochondrial	MALLTAAARLLGTKNASCLVLAARHASASSTNLKDILADLIPKEQARIKT...	unknown
Lysozyme	MKGKTAAGGGAICAIAVMITIVMGNGNVRTNQAGLELIGNAEGCRRDPYM...	unknown
Glycerol uptake operon antiterminator regulatory protein	MFKGIIAALWDMDSIGEIEPDVVFLLKSDILNLKFHLKILKDRGKTVFVD...	unknown
3-carboxy-cis,cis-muconate cycloisomerase	MTNQLFDAYFTAPAMREIFSDRGRLQGMLDFEAALARAEAAAGLVPHSAV...	unknown
Proto-oncogene tyrosine-protein kinase Src	MGSNKSKPKDASQRRRSLEPAENVHGAGGGAFPASQTPSKPASADGHRGP...	unknown
Pyruvate decarboxylase	MSYTVGTYLAERLVQIGLKHHFAVAGDYNLVLLDNLLLNKNMEQVYCCNE...	unknown
Ribonuclease pancreatic	MALEKSLVRLLLLVLILLVLGWVQPSLGKESRAKKFQRQHMDSDSSPSSS...	unknown
Isocitrate dehydrogenase [NADP]	MAQGEKITVSNGVLNVPNNPIIPFIEGDGTGPDIWNAASKVLEAAVEKAY...	unknown	substrate,inhibitor
Eosinophil cationic protein	MVPKLFTSQICLLLLLGLMGVEGSLHARPPQFTRAQWFAIQHISLNPPRC...	unknown
Beta-lactamase	MKLWFSTLKLKKAAAVLLFSCVALAGCANNQTNASQPAEKNEKTEMKDDF...	unknown	weak inhibitor
Metallo-beta-lactamase type 2	MELPNIMHPVAKLSTALAAALMLSGCMPGEIRPTIGQQMETGDQRFGDLV...	unknown	inhibitor
Solute carrier organic anion transporter family member 2B1	MGPRIGPAGEVPQVPDKETKATMGTENTPGGKASPDPQDVRPSVFHNIKL...	unknown	inhibitor
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Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682

Resource Name	Reference
CCDC/CSD	CITARC01
PubChem	311
PubChem	88113319
PubChem	19782904
ChEBI	CHEBI:30769
ChEMBL	CHEMBL1261

180419 Biological Macromolecular Structures Enabling Breakthroughs in Research and Education

CIT

CITRIC ACID

Chemical Component Summary

Chemical Details

Drug Info: DrugBank

Drug Targets

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180419 Biological Macromolecular Structures Enabling Breakthroughs in Research and Education

CIT

CITRIC ACID

Chemical Component Summary

Chemical Details

Drug Info: DrugBank

Drug Targets

Related Resource References