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Target Snapshot

CHEMBL4552 Target Snapshot

Translocator protein · SINGLE PROTEIN · Rattus norvegicus

1,131Compounds
235Assays
10Approved Drugs
1,672.0Activities
Free Research Context

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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 2026-09-13

Protein identity stays anchored to UniProt P16257. Use UniProt P16257 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt P16257 as the stable identity anchor, then attach disease evidence before program review.

ChEMBL component mapping + Open Targets-ready proxy + ChEMBL 36 via Core Engine 2026-09-13
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 Translocator protein as ChEMBL target CHEMBL4552, mapped to UniProt P16257. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Translocator protein
SINGLE PROTEIN · Rattus norvegicus
As of 2026-09-13
ChEMBL target ID
CHEMBL4552
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P16257
Translocator protein
UniProt accession via ChEMBL component mapping As of 2026-09-13
www.uniprot.org
Disease evidence contract
Open Targets-ready proxy
ChEMBL drug mechanism + indication proxy
ChEMBL drug mechanism + indication proxy As of 2026-09-13
www.ebi.ac.uk

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

Source Guidance

Start with the right source

Choose the first block or source based on the question you are trying to answer.

Need stable target naming and protein identity?
UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Translocator protein is the right protein anchor across sources, using UniProt P16257 as the stable mapping.

Jump to Protein Context
Need disease fit before discussing compounds?
Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

Use this block first when you need the strongest disease program and evidence level in one place.

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Evidence Card
Review-ready rationale with source-aware context

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Overview

Basic Information

Verify identity, organism, and the fastest next research jumps from the same page.

UniProt Context

UniProt Target Context

Reviewable protein naming and mapping context for this target snapshot.

Protein LabelTranslocator protein
UniProt AccessionP16257
Component TypeProtein
Sequence Length169 aa

Translocator protein

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Translocator protein, mapped to UniProt P16257. Sequence length is 169 aa.

Mapped IDP16257
Review nameTranslocator protein
OrganismRattus norvegicus
Clinical Profile

Clinical Phase Distribution

10
Approved
4
Phase II
Assay Mix

Activity Type Distribution

IC50699.0
KI959.0
KD14.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL63064 10.37 Ki 0.043 Preclinical
CHEMBL2070800 10.3 Ki 0.05 Preclinical
CHEMBL2070787 10.3 Ki 0.05 Preclinical
CHEMBL5288131 10.15 Ki 0.07 Preclinical
CHEMBL401000 10.14 Ki 0.0726 Preclinical
CHEMBL205971 10.13 Ki 0.074 Preclinical
CHEMBL292092 10.11 Ki 0.078 Preclinical
CHEMBL253596 10.01 Ki 0.0978 Preclinical
CHEMBL381602 10.01 Ki 0.098 Preclinical
CHEMBL135514 10.0 Ki 0.1 Preclinical
Distribution

pChEMBL Value Distribution

44
5.0
91
5.5
145
6.0
139
6.5
143
7.0
203
7.5
276
8.0
226
8.5
156
9.0
65
9.5
pChEMBL
Approved Drugs

Approved Drugs

MIDAZOLAM
CHEMBL655
Approved 1985
VERAPAMIL
CHEMBL6966
Approved 1981
NIFEDIPINE
CHEMBL193
Approved 1981
DIAZEPAM
CHEMBL12
Approved 1963
CHLORDIAZEPOXIDE
CHEMBL451
Approved 1960
Assay Landscape

Assay Landscape

235
Total Assays
1,135
Tested Compounds
2
Assay Types
Binding — 204 assays, 1,135 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 59 212 7.6
tissue-based format 55 289 7.7
cell membrane format 41 416 7.8
assay format 24 136 7.7
cell-based format 15 34 7.7
organism-based format 6 26 7.3
microsome format 2 6 7.0
mitochondrion format 2 16 8.9
Functional — 31 assays, 0 compounds
BAO Format Assays Compounds Avg pChEMBL
tissue-based format 14 0
organism-based format 12 0
assay format 4 0
mitochondrion format 1 0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine