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Target Snapshot

CHEMBL4892 Target Snapshot

Alpha-1A adrenergic receptor · SINGLE PROTEIN · Bos taurus

252Compounds
38Assays
18Approved Drugs
283.0Activities
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Broader Open DB context

Frame the target before identity details

Structured disease, protein, and project context should read before the lower-level identity rail.

As of 2026-09-14

Protein identity stays anchored to UniProt P18130. Use UniProt P18130 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt P18130 as the stable identity anchor, then attach disease evidence before program review.

ChEMBL component mapping + Open Targets-ready proxy + ChEMBL 36 via Core Engine 2026-09-14
Open source guide
Identity Layer

Cross-source identity

Keep the review anchor, source IDs, and context contract aligned before reusing this target elsewhere.

This review treats Alpha-1A adrenergic receptor as ChEMBL target CHEMBL4892, mapped to UniProt P18130. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Alpha-1A adrenergic receptor
SINGLE PROTEIN · Bos taurus
As of 2026-09-14
ChEMBL target ID
CHEMBL4892
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
P18130
Alpha-1A adrenergic receptor
UniProt accession via ChEMBL component mapping As of 2026-09-14
www.uniprot.org
Disease evidence contract
Open Targets-ready proxy
ChEMBL drug mechanism + indication proxy
ChEMBL drug mechanism + indication proxy As of 2026-09-14
www.ebi.ac.uk

Reuse the same identifiers in notes, watch rules, exports, and review packs so provenance stays stable across surfaces.

Source Guidance

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UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Alpha-1A adrenergic receptor is the right protein anchor across sources, using UniProt P18130 as the stable mapping.

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Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

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Evidence Card
Review-ready rationale with source-aware context

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Overview

Basic Information

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UniProt Context

UniProt Target Context

Reviewable protein naming and mapping context for this target snapshot.

Protein LabelAlpha-1A adrenergic receptor
UniProt AccessionP18130
Component TypeProtein
Sequence Length466 aa

Alpha-1A adrenergic receptor

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Alpha-1A adrenergic receptor, mapped to UniProt P18130. Sequence length is 466 aa.

Mapped IDP18130
Review nameAlpha-1A adrenergic receptor
OrganismBos taurus
Clinical Profile

Clinical Phase Distribution

18
Approved
2
Phase III
6
Phase II
Assay Mix

Activity Type Distribution

IC5072.0
KI206.0
EC505.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL324090 10.52 Ki 0.03 Clinical
CHEMBL1259217 10.17 Ki 0.067 Preclinical
CHEMBL91278 10.1 Ki 0.07943 Preclinical
CHEMBL1259113 10.09 Ki 0.082 Preclinical
CHEMBL1258988 10.07 Ki 0.086 Preclinical
CHEMBL1259144 10.06 Ki 0.088 Preclinical
CHEMBL1259112 10.02 Ki 0.096 Preclinical
CHEMBL1259145 9.92 Ki 0.12 Preclinical
CHEMBL2 9.9 Ki 0.1259 Approved
CHEMBL836 9.9 Ki 0.1259 Approved
Distribution

pChEMBL Value Distribution

28
5.0
34
5.5
22
6.0
20
6.5
15
7.0
25
7.5
12
8.0
23
8.5
52
9.0
22
9.5
pChEMBL
Approved Drugs

Approved Drugs

ALFUZOSIN
CHEMBL709
Approved 2003
DEXMEDETOMIDINE
CHEMBL778
Approved 1999
TAMSULOSIN
CHEMBL836
Approved 1997
SERTINDOLE
CHEMBL12713
Approved 1996
TIZANIDINE
CHEMBL1079
Approved 1996
CLOZAPINE
CHEMBL42
Approved 1989
TERAZOSIN
CHEMBL611
Approved 1987
OXYMETAZOLINE
CHEMBL762
Approved 1986
PRAZOSIN
CHEMBL2
Approved 1976
CLONIDINE
CHEMBL134
Approved 1974
HALOPERIDOL
CHEMBL54
Approved 1967
PHENTOLAMINE
CHEMBL597
Approved 1952
PHENYLEPHRINE
CHEMBL1215
Approved 1952
NOREPINEPHRINE
CHEMBL1437
Approved 1950
Assay Landscape

Assay Landscape

38
Total Assays
245
Tested Compounds
2
Assay Types
Binding — 36 assays, 245 compounds
BAO Format Assays Compounds Avg pChEMBL
tissue-based format 13 105 6.1
single protein format 11 58 8.1
assay format 8 20 7.5
cell-based format 4 62 9.1
Functional — 2 assays, 5 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 2 5 6.8

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine