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CA3 · ChEMBL activity 2250659

Kinact source measurement: = 2.0 10'5nM. No cross-assay comparison is prequalified.

Assay activity2250659Admitted release record

Source assertion

ChEMBL direct single-protein activity record with source-reported and source-standardized lexical values preserved.
Evidence ID
ACTIVITY:ChEMBL_37:2250659
Subject dossier
ca3
Source chain
uniprot + chembl
Upstream record
2250659
Corpus snapshot
2026-07-14T09:23:31Z
Admission status
Admitted release record

Lossless activity measurement

Source-reported value
= 2.0 10'5nM
Source-standardized value
= 2.0 10'5nM
Reported endpoint
Kinact
Standardized endpoint
Kinact
Reported upper bound
not reported in admitted source fields
Reported text value
not reported in admitted source fields
Standardization flag
0
pChEMBL from source
not reported in admitted source fields

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 · UNSUPPORTED_UNIT

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
2250659
Target
CHEMBL2885 · SINGLE PROTEIN
Assay
CHEMBL1019861 · Binding (B)
BAO format
BAO_0000357 · single protein format
BAO endpoint
BAO_0000179
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 CA3 by stopped flow CO2 hydration assay

Compound identity

Molecule
CHEMBL20 · ACETAZOLAMIDE
Parent form
CHEMBL20 · is_parent_form=true
Molecule type
Small molecule
Chirality source code
2
Standard InChIKey
BZKPWHYZMXOIDC-UHFFFAOYSA-N
Canonical SMILES
CC(=O)Nc1nnc(S(N)(=O)=O)s1
Standard InChI
InChI=1S/C4H6N4O3S2/c1-2(9)6-3-7-8-4(12-3)13(5,10)11/h1H3,(H2,5,10,11)(H,6,7,9)

Document

Carbonic anhydrase inhibitors. Comparison of chlorthalidone and indapamide X-ray crystal structures in adducts with isozyme II: when three water molecules and the keto-enol tautomerism make the difference.

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

ChEMBL document
CHEMBL1139383
Journal / year
J Med Chem · 2009
PubMed
19115843

Comparison state

Prequalified
No — pairwise evaluation is still required
Protein identity
P07451 · 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/P07451.jsoncf4d0cf96a6252efc608b8ee5c8b35b502dffa8996e6dbb74c6fa4b67ce3394fOpen exact source
2026-07-14T09:22:19Zraw/chembl/targets/CHEMBL2885.jsondcbc37484e42848b7fca675d4e4820ee510fa2c8a5c36fdfeb104caaef140929Open exact source
2026-07-14T09:22:26Zraw/chembl/direct-assays/CHEMBL2885.json1cec96f9a90a32ed8fc3be670fe9b64fc53f889877345862e36222d5a11be511Open exact source
2026-07-14T09:22:52Zraw/chembl/assay-activities/CHEMBL1019861.json74ae8dbe77f43df359c3102aa3e69a0410751d93419a0621cedd6559589b4d1cOpen exact source
2026-07-14T09:23:19Zraw/chembl/activities/2250659.json3d81291f3b40e74aa66733060dd547e67b08d30293a7d4536a20a5884d2053fbOpen exact source
2026-07-14T09:23:20Zraw/chembl/assays/CHEMBL1019861.jsonc835fe3879e941e73cd7fa5be219c03b5e75a1e3bd3b05d5442d340b566bda06Open exact source
2026-07-14T09:23:20Zraw/chembl/molecules/CHEMBL20.json6b07a8754aad1e0e3a2ad71a185215a21d0c942143f77e80555dd6d7fe39df19Open exact source
2026-07-14T09:23:20Zraw/chembl/documents/CHEMBL1139383.jsoned83ab3f991235315310bfa93368979a438a3961fb71a211ed7d627c5da71fd5Open exact source