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CA5A · ChEMBL activity 2491977

Ki source measurement: = 917.0 nM. No cross-assay comparison is prequalified.

Assay activity2491977Admitted release record

Source assertion

ChEMBL direct single-protein activity record with source-reported and source-standardized lexical values preserved.
Evidence ID
ACTIVITY:ChEMBL_37:2491977
Subject dossier
ca5a
Source chain
uniprot + chembl
Upstream record
2491977
Corpus snapshot
2026-07-14T09:23:31Z
Admission status
Admitted release record

Lossless activity measurement

Source-reported value
= 917.0 nM
Source-standardized value
= 917.0 nM
Reported endpoint
Ki
Standardized endpoint
Ki
Reported upper bound
not reported in admitted source fields
Reported text value
not reported in admitted source fields
Standardization flag
1
pChEMBL from source
6.04

Reported and source-standardized fields are displayed separately and retain their exact lexical values. The standardized field does not overwrite the upstream report.

Record-local comparison refusalCONDITION_MISSING

No cross-assay comparison is authorized by this record. Evaluate target, construct, endpoint, relation, units, assay format, conditions, and exact molecular form first.

Assay and target

ChEMBL activity
2491977
Target
CHEMBL4789 · SINGLE PROTEIN
Assay
CHEMBL1029733 · Binding (B)
BAO format
BAO_0000357 · single protein format
BAO endpoint
BAO_0000192
Target confidence
9 · Direct single protein target assigned
Source quality flags
potential_duplicate=0 · data_validity_comment=not reported in admitted source fields
Upstream assay description

Inhibition of human recombinant full length CA5A by stopped-flow CO2 hydration method

Compound identity

Molecule
CHEMBL1055 · CHLORTHALIDONE
Parent form
CHEMBL1055 · is_parent_form=true
Molecule type
Small molecule
Chirality source code
0
Standard InChIKey
JIVPVXMEBJLZRO-UHFFFAOYSA-N
Canonical SMILES
NS(=O)(=O)c1cc(C2(O)NC(=O)c3ccccc32)ccc1Cl
Standard InChI
InChI=1S/C14H11ClN2O4S/c15-11-6-5-8(7-12(11)22(16,20)21)14(19)10-4-2-1-3-9(10)13(18)17-14/h1-7,19H,(H,17,18)(H2,16,20,21)

Document

Carbonic anhydrase inhibitors. Comparison of chlorthalidone, indapamide, trichloromethiazide, and furosemide X-ray crystal structures in adducts with isozyme II, when several water molecules make the difference.

Temperini C, Cecchi A, Scozzafava A, Supuran CT.

ChEMBL document
CHEMBL1143325
Journal / year
Bioorg Med Chem · 2009
PubMed
19119014

Comparison state

Prequalified
No — pairwise evaluation is still required
Protein identity
P35218 · taxon 9606
Variant / construct
not reported in admitted source fields / not reported in admitted source fields
Conditions
pH not reported in admitted source fields · temperature not reported in admitted source fields °C · substrate not reported in admitted source fields · buffer not reported in admitted source fields

Snapshot provenance

Each retained corpus build input is identified by retrieval time, snapshot path, SHA-256 digest, and exact upstream request. The snapshot files are not embedded in the served binary; the provenance identifiers remain dependencies of this one admitted record, not interchangeable citations.

RetrievedSnapshotSHA-256Upstream request
2026-07-14T09:21:32Zraw/uniprot/entries/P35218.json3daaace95b24bb2a3505bfc3dc00d69a45a868bef35d44db5ad2f62660d4ce94Open exact source
2026-07-14T09:22:19Zraw/chembl/targets/CHEMBL4789.json86dfea3c0c23596e5f5b5f2e6ee176d76f8e4effc80d8f193dc3a568fff03594Open exact source
2026-07-14T09:22:31Zraw/chembl/direct-assays/CHEMBL4789.json8d4214e3a1e44388d76657f865206df552757578115a1a05b80789f6bccf1942Open exact source
2026-07-14T09:22:54Zraw/chembl/assay-activities/CHEMBL1029733.json33e333508d1de57f0b45ebe8066daa1de027d9dedb39af9a7dc40f01171976f8Open exact source
2026-07-14T09:23:22Zraw/chembl/activities/2491977.json9377e8b5362b81ebd1746382c09bcd77f4e7b655c17ec4a380212d88a171d2a8Open exact source
2026-07-14T09:23:24Zraw/chembl/assays/CHEMBL1029733.json56431d44ce11d18e4c3f44338b038aa400ccf938af089b124dbe56c70fe2f102Open exact source
2026-07-14T09:23:20Zraw/chembl/molecules/CHEMBL1055.jsonbcb4e644c6e9bf753eecc777d7b17904cc4ab7dba2462b20225e863d19a96e02Open exact source
2026-07-14T09:23:20Zraw/chembl/documents/CHEMBL1143325.json990abd6d9ff57eb2de561cab375f1e27990c7e2f3d4ca6fb92a84c27ff14d918Open exact source