Disease or phenotype OBA
chemical in serum amount
OBA_2020004 in Open Targets Platform 26.06, filed under measurement. The targets below are ranked by the Platform's association score, which the Platform says is not a confidence score; the ClinGen card is a separate question, whether variation in a gene causes a monogenic disease.
Which targets
Indirect is the Platform's own default when listing a disease's targets: the evidence of the term's ontology descendants counts. Direct counts the evidence between the two terms alone. The page says which it shows.
01The term
About this term, from the Platform
What this tells you
The name, the therapeutic areas, the parents and the children in the strip are read from the disease dataset of Open Targets Platform 26.06, built into this site on 2026-09-09; the description, the synonyms and the ranked targets are read live from the Platform's API, which names the same release on every answer, and every figure on this page is the Platform's own.
What the entity is, in the Platform's words: A disease or phenotype in the Platform is understood as any disease, phenotype, biological process or measurement that might have any type of causality relationship with a human target. The EMBL-EBI Experimental Factor Ontology (EFO) is used as scaffold for the disease or phenotype entity.
[R16] So a measurement or a biological process has a page here like a disease, and the therapeutic areas in the strip say which kind of term it is. What a target is: A target in the Platform is understood as any naturally-occurring molecule that can be targeted by a medicinal product. EMBL-EBI's Ensembl database is used as source for human targets in the Platform, with the Ensembl gene ID as the primary identifier.
[R18]
The ranking is by the Platform's overall association score: The overall association score aims to summarise all the aggregated evidence for a given target-disease association. The score is derived by calculating the harmonic sum of the association score by data source weighted by the data source weights, regardless of their data type categorisation.
[R15] And what the score is not: While scores are useful to rank lists of targets or diseases, they should not be interpreted as a confidence score for the target-disease association.
[R15] For example, under-studied diseases are unlikely to produce high-scoring targets due to the lack of available evidence. In such diseases, a relatively low-scoring target might still be the top-ranked target and potentially a very interesting lead from a therapeutic standpoint.
[R15]
Two views, in the Platform's words. Direct: The Platform refers to associations described by aggregated evidence between two specific terms in our data sources as direct associations.
[R15] Indirect, the Platform's own default when listing the targets of a disease: An association page for targets associated with a disease (e.g. Inflammatory Bowel Disease associations page) includes both direct and indirect evidence.
[R15] One data type is never propagated: RNA expression data type evidence is not propagated in the ontology. We made this decision to prevent parent terms from having long lists of associated targets with weak RNA expression association scores.
[R15]
The data are public domain, Open Targets Platform is marked with CC0 1.0. This dedicates the data to the public domain, allowing downstream users to consume the data without restriction.
[R14] and the Platform asks that its latest publication be cited [R17], which is [R03].
A target high on this list is a gene the Platform's sources associate with this term by the Platform's arithmetic over their evidence; choosing a knockdown target from it means reading the evidence behind the row on the Platform's own page, which each row links to, and the order of two rows that share a score can differ between requests, which the page says when it happens.
- [R03] Buniello A, Suveges D, Cruz-Castillo C, Llinares MB, Cornu H, Lopez I, et al. (2025). Open Targets Platform: facilitating therapeutic hypotheses building in drug discovery. Nucleic Acids Research 53:D1467-D1475. PMID 39657122, doi 10.1093/nar/gkae1128.
- [R14] Open Targets Platform Documentation. Licence. https://platform-docs.opentargets.org/licence, read 2026-09-09.
- [R15] Open Targets Platform Documentation. Target-disease associations. https://platform-docs.opentargets.org/associations, read 2026-09-09.
- [R16] Open Targets Platform Documentation. Disease or Phenotype. https://platform-docs.opentargets.org/disease-or-phenotype, read 2026-09-09.
- [R17] Open Targets Platform Documentation. Citation. https://platform-docs.opentargets.org/citation, read 2026-09-09.
- [R18] Open Targets Platform Documentation. Target. https://platform-docs.opentargets.org/target, read 2026-09-09.
02Ranked targets
Targets the Platform ranks for this term, indirect view
03ClinGen
Gene-disease validity curations for this MONDO term
What this tells you
The curations are read from ClinGen's gene-disease validity download, keyed on the MONDO term Open Targets writes for this entity after an exact character translation and never after a search; a term of another ontology has no counterpart in that file, and the card says so. Each row shows which of ClinGen's classifications it carries, with the procedure version and the date it was made under; nothing here ranks the classifications.
What a classification is about, in ClinGen's words: The ClinGen Gene-Disease Clinical Validity curation process involves evaluating the strength of evidence supporting or refuting a claim that variation in a particular gene causes a particular monogenic disease.
[R20] And what the process is not: This curation process is not intended to be a systematic review of all available literature for a given gene or condition, but instead an overview of the most pertinent evidence required to assign the appropriate classification for a gene-disease relationship at a given time.
[R21]
The classification vocabulary is the 8 values ClinGen's own results table lists in its Classification filter control, in the control's own alphabetical order [R23]: Animal Model Only, Definitive, Disputed, Limited, Moderate, No Known Disease Relationship, Refuted, Strong. The order is the control's and carries no strength: nothing here ranks the values, and a value outside that set is shown as the file writes it and marked as unlisted, never mapped to a neighbour. The definitions of the values are in the standard operating procedure, which ClinGen publishes as a document [R22]; this site has not read that document, so no definition is stated here, and the framework paper the procedure rests on is [R06]. Each row carries the procedure version it was made under, as the table does, because rows made under different versions sit side by side.
ClinGen's curated content is public domain: All curated content published by ClinGen is available free of restriction under the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication. However, ClinGen requests that you give attribution to ClinGen and provide the date accessed whenever possible and appropriate.
[R19] The attribution in the card's provenance line follows ClinGen's own example statement, and no logo is shown: The ClinGen logo cannot be used without prior approval of the ClinGen Steering Committee.
[R19] ClinGen asks that its marker paper [R04] and its 2024 consortium paper [R05] be cited.
A ClinGen classification is a statement about whether variation in a gene causes a monogenic disease. It is not a statement about whether the gene is a knockdown target, and it is not a rank beside the Platform's score above it.
- [R04] Rehm HL, Berg JS, Brooks LD, Bustamante CD, Evans JP, Landrum MJ, et al. (2015). ClinGen--the Clinical Genome Resource. N Engl J Med 372:2235-2242. PMID 26014595, doi 10.1056/NEJMsr1406261.
- [R05] ClinGen Consortium (2025). The Clinical Genome Resource (ClinGen): Advancing genomic knowledge through global curation. Genet Med 27:101228. PMID 39404758, doi 10.1016/j.gim.2024.101228.
- [R06] Strande NT, Riggs ER, Buchanan AH, Ceyhan-Birsoy O, DiStefano M, Dwight SS, et al. (2017). Evaluating the Clinical Validity of Gene-Disease Associations: An Evidence-Based Framework Developed by the Clinical Genome Resource. Am J Hum Genet 100:895-906. PMID 28552198, doi 10.1016/j.ajhg.2017.04.015.
- [R19] ClinGen, Clinical Genome Resource. Citing ClinGen & Terms of Use. https://clinicalgenome.org/docs/terms-of-use/, read 2026-09-09.
- [R20] ClinGen, Clinical Genome Resource. Gene-Disease Validity. https://clinicalgenome.org/curation-activities/gene-disease-validity/, read 2026-09-09.
- [R21] ClinGen, Clinical Genome Resource. Gene-Disease Validity Standard Operating Procedure. https://clinicalgenome.org/docs/gene-disease-validity-standard-operating-procedure/, read 2026-09-09.
- [R22] ClinGen, Clinical Genome Resource. Gene-Disease Validity Standard Operating Procedures, Version 12. https://clinicalgenome.org/docs/gene-disease-validity-standard-operating-procedures-version-12/, read 2026-09-09.
- [R23] ClinGen, Clinical Genome Resource. ClinGen Gene-Disease Validity Curations. https://search.clinicalgenome.org/kb/gene-validity, read 2026-09-09.
Not available
04The ontology
Where the release places this term
Children
- level of ceramide in blood serumOBA_2045029
- level of phosphatidylcholine in blood serumOBA_2045031
- level of phosphatidylethanolamine in blood serumOBA_2045032
- level of phosphatidylinositol in blood serumOBA_2045033
- level of sphingomyelin in blood serumOBA_2045034
- level of triglyceride in blood serumOBA_2045035
- level of (5Z,7E)-(3S)-26,26,26-trifluoro-27-nor-9,10-seco-5,7,10(19)-cholestatriene-3,25-diol in blood serumOBA_2045037
- level of 1-(8-[3]-ladderane-octanoyl)-2-(8-[3]-ladderane-octanyl)-sn-glycerol in blood serumOBA_2045038
- level of 1-O-alpha-D-Glucopyranosyl-1,2-nonadecandiol in blood serumOBA_2045041
- level of Margaroyl-EA in blood serumOBA_2045042
- level of N-(3E-hexadecenoyl)-deoxysphing-4-enine-1-sulfonate in blood serumOBA_2045043
- level of (4E,8E,10E-d18:3)sphingosine in blood serumOBA_2045044
- level of PS(O-20:0/22:4(7Z,10Z,13Z,16Z)) in blood serumOBA_2045045
- level of PS(O-20:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) in blood serumOBA_2045047
- level of 5-hydroperoxy-7-[3,5-epidioxy-2-(2-octenyl)-cyclopentyl]-6-heptenoic acid in blood serumOBA_2045048
- level of Sphingofungin B in blood serumOBA_2045049
- level of N-linolenoyl glutamine in blood serumOBA_2045050
- level of Ipurolic acid in blood serumOBA_2045051
- level of dialkylglycerol in blood serumOBA_2045052
- level of 1-O-oleoyl-sn-glycero-3-phosphoserine in blood serumOBA_2045055
- level of (E)-isoheptadec-2-enoyl-CoA in blood serumOBA_2045056
- level of ceramide phosphoethanolamine in blood serumOBA_2045057
- level of 1-(5Z,8Z,11Z,14Z,17Z-eicosapentaenoyl)-sn-glycero-3-phospho-1D-myo-inositol in blood serumOBA_2045059
- level of 1-O-(1Z-eicosenyl)-sn-glycero-3-phospho-1D-myo-inositol in blood serumOBA_2045060
- level of Phosphatidylcholine (14:0_18:2) in blood serumOBA_2045063
- level of Phosphatidylcholine (15:0_18:1) in blood serumOBA_2045064
- level of Phosphatidylcholine (16:0_0:0) in blood serumOBA_2045066
- level of Phosphatidylcholine (16:0_18:2) in blood serumOBA_2045071
- level of Phosphatidylcholine (16:0_18:3) in blood serumOBA_2045072
- level of Phosphatidylcholine (16:0_20:1) in blood serumOBA_2045073
- level of Phosphatidylcholine (16:0_20:2) in blood serumOBA_2045074
- level of Phosphatidylcholine (16:0_20:3) in blood serumOBA_2045075
- level of Phosphatidylcholine (16:0_20:5) in blood serumOBA_2045077
- level of Phosphatidylcholine (16:0_22:5) in blood serumOBA_2045079
- level of Phosphatidylcholine (16:0_22:6) in blood serumOBA_2045080
- level of Phosphatidylcholine (16:1_18:0) in blood serumOBA_2045081
- level of Phosphatidylcholine (16:1_18:2) in blood serumOBA_2045083
- level of Phosphatidylcholine (16:1_20:4) in blood serumOBA_2045084
- level of Phosphatidylcholine (18:0_0:0) in blood serumOBA_2045088
- level of Phosphatidylcholine (18:0_18:2) in blood serumOBA_2045090
- level of Phosphatidylcholine (18:0_18:3) in blood serumOBA_2045091
- level of Phosphatidylcholine (18:0_20:2) in blood serumOBA_2045092
- level of Phosphatidylcholine (18:0_20:3) in blood serumOBA_2045093
- level of Phosphatidylcholine (18:0_20:5) in blood serumOBA_2045095
- level of Phosphatidylcholine (18:0_22:5) in blood serumOBA_2045096
- level of Phosphatidylcholine (18:0_22:6) in blood serumOBA_2045097
- level of Phosphatidylcholine (18:1_0:0) in blood serumOBA_2045098
- level of Phosphatidylcholine (18:1_18:2) in blood serumOBA_2045100
- level of Phosphatidylcholine (18:1_18:3) in blood serumOBA_2045101
- level of Phosphatidylcholine (18:1_20:2) in blood serumOBA_2045102
- level of Phosphatidylcholine (18:1_20:3) in blood serumOBA_2045103
- level of Phosphatidylcholine (18:2_0:0) in blood serumOBA_2045105
- level of Phosphatidylcholine (18:2_18:2) in blood serumOBA_2045106
- level of Phosphatidylcholine (18:2_20:1) in blood serumOBA_2045107
- level of Phosphatidylcholine (18:2_20:3) in blood serumOBA_2045108
- level of Phosphatidylcholine (18:2_20:4) in blood serumOBA_2045109
- level of Phosphatidylcholine (O-16:0_16:0) in blood serumOBA_2045111
- level of Phosphatidylcholine (O-16:0_18:1) in blood serumOBA_2045113
- level of Phosphatidylcholine (O-16:0_18:2) in blood serumOBA_2045114
- level of Phosphatidylcholine (O-16:0_20:3) in blood serumOBA_2045115
- level of Phosphatidylcholine (O-16:0_22:5) in blood serumOBA_2045117
- level of Phosphatidylcholine (O-16:1_16:0) in blood serumOBA_2045118
- level of Phosphatidylcholine (O-16:1_18:0) in blood serumOBA_2045119
- level of Phosphatidylcholine (O-16:1_18:2) in blood serumOBA_2045121
- level of Phosphatidylcholine (O-16:1_20:3) in blood serumOBA_2045122
- level of Phosphatidylcholine (O-16:1_20:4) in blood serumOBA_2045123
- level of Phosphatidylcholine (O-17:0_15:0) in blood serumOBA_2045124
- level of Phosphatidylcholine (O-18:0_14:0) in blood serumOBA_2045125
- level of Phosphatidylcholine (O-18:0_16:1) in blood serumOBA_2045126
- level of Phosphatidylcholine (O-18:0_20:4) in blood serumOBA_2045127
- level of Phosphatidylcholine (O-18:1_18:2) in blood serumOBA_2045129
- level of Phosphatidylcholine (O-18:1_20:3) in blood serumOBA_2045130
- level of Phosphatidylcholine (O-18:1_20:4) in blood serumOBA_2045131
- level of Phosphatidylcholine (O-18:2_16:0) in blood serumOBA_2045132
- level of Phosphatidylcholine (O-18:2_18:1) in blood serumOBA_2045133
- level of Phosphatidylcholine (O-18:2_18:2) in blood serumOBA_2045134
- level of Phosphatidylcholine (O-18:2_20:4) in blood serumOBA_2045135
- level of Phosphatidylethanolamine (16:0_18:2) in blood serumOBA_2045136
- level of Phosphatidylethanolamine (18:0_0:0) in blood serumOBA_2045138
- level of Phosphatidylethanolamine (18:0_18:2) in blood serumOBA_2045139
- level of Phosphatidylethanolamine (18:1_0:0) in blood serumOBA_2045141
- level of Phosphatidylethanolamine (18:2_0:0) in blood serumOBA_2045143
- level of Phosphatidylethanolamine (O-16:1_18:2) in blood serumOBA_2045144
- level of Phosphatidylethanolamine (O-16:1_20:4) in blood serumOBA_2045145
- level of Phosphatidylethanolamine (O-16:1_22:5) in blood serumOBA_2045146
- level of Phosphatidylethanolamine (O-18:1_18:2) in blood serumOBA_2045147
- level of Phosphatidylethanolamine (O-18:1_20:4) in blood serumOBA_2045148
- level of Phosphatidylethanolamine (O-18:2_18:1) in blood serumOBA_2045149
- level of Phosphatidylethanolamine (O-18:2_18:2) in blood serumOBA_2045150
- level of Phosphatidylethanolamine (O-18:2_20:4) in blood serumOBA_2045151
- level of Phosphatidylinositol (16:0_18:2) in blood serumOBA_2045153
- level of Phosphatidylinositol (18:0_18:2) in blood serumOBA_2045156
- level of Phosphatidylinositol (18:1_18:1) in blood serumOBA_2045159
- level of Phosphatidylinositol (18:1_18:2) in blood serumOBA_2045160
- level of Phosphatidylinositol (18:1_20:4) in blood serumOBA_2045161
- level of Diacylglycerol (16:0_18:1) in blood serumOBA_2045167
- level of Diacylglycerol (16:0_18:2) in blood serumOBA_2045168
- level of Diacylglycerol (16:1_18:1) in blood serumOBA_2045169
- level of Diacylglycerol (18:1_18:1) in blood serumOBA_2045170
- level of Diacylglycerol (18:1_18:2) in blood serumOBA_2045171
- level of Diacylglycerol (18:1_18:3) in blood serumOBA_2045172
- level of Sphingomyelin (d32:1) in blood serumOBA_2045173
- level of Sphingomyelin (d34:2) in blood serumOBA_2045174
- level of Sphingomyelin (d34:1) in blood serumOBA_2045175
- level of Sphingomyelin (d34:0) in blood serumOBA_2045176
- level of Sphingomyelin (d36:2) in blood serumOBA_2045177
- level of Sphingomyelin (d36:1) in blood serumOBA_2045178
- level of Sphingomyelin (d38:2) in blood serumOBA_2045179
- level of Sphingomyelin (d38:1) in blood serumOBA_2045180
- level of Sphingomyelin (d40:2) in blood serumOBA_2045181
- level of Sphingomyelin (d40:1) in blood serumOBA_2045182
- level of Sphingomyelin (d42:2) in blood serumOBA_2045183
- level of Sterol ester (27:1/14:0) in blood serumOBA_2045188
- level of Sterol ester (27:1/15:0) in blood serumOBA_2045189
- level of Sterol ester (27:1/16:1) in blood serumOBA_2045190
- level of Sterol ester (27:1/16:0) in blood serumOBA_2045191
- level of Sterol ester (27:1/17:0) in blood serumOBA_2045192
- level of Sterol ester (27:1/18:3) in blood serumOBA_2045193
- level of Sterol ester (27:1/18:2) in blood serumOBA_2045194
- level of Sterol ester (27:1/18:1) in blood serumOBA_2045195
- level of Sterol ester (27:1/18:0) in blood serumOBA_2045196
- level of Sterol ester (27:1/20:5) in blood serumOBA_2045197
- level of Sterol ester (27:1/20:4) in blood serumOBA_2045198
- level of Sterol ester (27:1/20:3) in blood serumOBA_2045199
- level of Sterol ester (27:1/20:2) in blood serumOBA_2045200
- level of Sterol ester (27:1/22:6) in blood serumOBA_2045201
- level of 26,26,26,27,27,27-hexafluoro-25-hydroxy-16,17,23,23,24,24-hexadehydrovitamin D3 in blood serumOBA_2045202
- level of Cyanidin 3,5-diglucoside (6'',6'''-malyl diester) in blood serumOBA_2045203
- level of Cer(m18:1(4E)/24:1(15Z)) in blood serumOBA_2045204
- serum homoarginine amountOBA_2050056
- serum selenium amountOBA_2050059
- serum dimethylarginine amountOBA_2050060
- serum protein amountOBA_2050071
- serum zinc amountOBA_2050076
- serum clozapine amountOBA_2050086
- serum metabolite levelOBA_2050092
Therapeutic areas
- Open Targets Platform, the disease dataset · Open Targets Platform 26.06 · read · Open Targets PlatformOpen Targets Platform is marked with CC0 1.0. Citation requested: Buniello A et al., Nucleic Acids Research (2025), doi 10.1093/nar/gkae1128.