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CA4 · ChEMBL activity 2456864

Kinact source measurement: = 8.41 uM. No cross-assay comparison is prequalified.

Assay activity2456864Admitted release record

Source assertion

ChEMBL direct single-protein activity record with source-reported and source-standardized lexical values preserved.
Evidence ID
ACTIVITY:ChEMBL_37:2456864
Subject dossier
ca4
Source chain
uniprot + chembl
Upstream record
2456864
Corpus snapshot
2026-07-14T09:23:31Z
Admission status
Admitted release record

Lossless activity measurement

Source-reported value
= 8.41 uM
Source-standardized value
= 8.41 uM
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

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
2456864
Target
CHEMBL3729 · SINGLE PROTEIN
Assay
CHEMBL1010317 · 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 carbonic anhydrase 4 by stopped flow CO2 hydration method

Compound identity

Molecule
CHEMBL442687 · TIOXOLONE
Parent form
CHEMBL442687 · is_parent_form=true
Molecule type
Small molecule
Chirality source code
2
Standard InChIKey
SLYPOVJCSQHITR-UHFFFAOYSA-N
Canonical SMILES
O=c1oc2cc(O)ccc2s1
Standard InChI
InChI=1S/C7H4O3S/c8-4-1-2-6-5(3-4)10-7(9)11-6/h1-3,8H

Document

Carbonic anhydrase inhibitors: thioxolone versus sulfonamides for obtaining isozyme-selective inhibitors?

Innocenti A, Maresca A, Scozzafava A, Supuran CT.

ChEMBL document
CHEMBL1155067
Journal / year
Bioorg Med Chem Lett · 2008
PubMed
18572406

Comparison state

Prequalified
No — pairwise evaluation is still required
Protein identity
P22748 · 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/P22748.json28fa76c5a216b9356479d42199f709dd46e662172f2872078a5491cfe2c618f1Open exact source
2026-07-14T09:22:19Zraw/chembl/targets/CHEMBL3729.jsonb843a8aabc22404319779ac308eef89f3cef613f26b852fa401baedf1ed2463eOpen exact source
2026-07-14T09:22:29Zraw/chembl/direct-assays/CHEMBL3729.jsonbf42f50dc047016f1cbd6f8b10da431461099db1c544514716f31370e5f30e1fOpen exact source
2026-07-14T09:22:53Zraw/chembl/assay-activities/CHEMBL1010317.json95955a8fc0baa87bfb73c3108e004f860c8dcd6a9c3554884279c1a73e549112Open exact source
2026-07-14T09:23:21Zraw/chembl/activities/2456864.json4730b23ecf25952b1d1e342564dadcc57da8c2b306511594f3be6ea53610a32fOpen exact source
2026-07-14T09:23:22Zraw/chembl/assays/CHEMBL1010317.jsone2dc8283ee9efab93311ffc8e9685184a8339bc159db6374876ad3f436498f80Open exact source
2026-07-14T09:23:19Zraw/chembl/molecules/CHEMBL442687.jsonf152b44651db17cb570a3d901bba045a331eebd01e4fac702cecfbf64650aa99Open exact source
2026-07-14T09:23:19Zraw/chembl/documents/CHEMBL1155067.jsona852cdb1b30571a0f6ed5def67b2c61a1b73e56c6483dd07330b61bc3a77e725Open exact source