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Target Snapshot

CHEMBL3657 Target Snapshot

Isoleucine--tRNA ligase · SINGLE PROTEIN · Escherichia coli K-12

46Compounds
25Assays
1Approved Drugs
35.0Activities
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 2026-09-14

Protein identity stays anchored to UniProt P00956. Use UniProt P00956 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt P00956 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 Isoleucine--tRNA ligase as ChEMBL target CHEMBL3657, mapped to UniProt P00956. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Isoleucine--tRNA ligase
SINGLE PROTEIN · Escherichia coli K-12
As of 2026-09-14
ChEMBL target ID
CHEMBL3657
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
P00956
Isoleucine--tRNA ligase
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

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 Isoleucine--tRNA ligase is the right protein anchor across sources, using UniProt P00956 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 LabelIsoleucine--tRNA ligase
UniProt AccessionP00956
Component TypeProtein
Sequence Length938 aa

Isoleucine--tRNA ligase

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Isoleucine--tRNA ligase, mapped to UniProt P00956. Sequence length is 938 aa.

Mapped IDP00956
Review nameIsoleucine--tRNA ligase
OrganismEscherichia coli K-12
Clinical Profile

Clinical Phase Distribution

1
Approved
Assay Mix

Activity Type Distribution

IC5026.0
KI9.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL4553017 8.92 Ki 1.2 Preclinical
CHEMBL1163069 8.72 Ki 1.92 Preclinical
CHEMBL719 8.6 Ki 2.5 Approved
CHEMBL4553017 8.17 IC50 6.8 Preclinical
CHEMBL3265242 7.76 Ki 17.2 Preclinical
CHEMBL3265243 7.26 Ki 55.0 Preclinical
CHEMBL4636583 7.06 Ki 88.0 Preclinical
CHEMBL4648043 6.94 Ki 114.0 Preclinical
CHEMBL4215986 6.67 Ki 213.0 Preclinical
CHEMBL1163069 6.58 IC50 265.0 Preclinical
Distribution

pChEMBL Value Distribution

1
5.0
1
5.5
0
6.0
3
6.5
2
7.0
1
7.5
1
8.0
3
8.5
0
9.0
0
9.5
pChEMBL
Approved Drugs

Approved Drugs

MUPIROCIN
CHEMBL719
Approved 1987
Assay Landscape

Assay Landscape

25
Total Assays
12
Tested Compounds
1
Assay Types
Binding — 25 assays, 12 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 14 4 7.9
single protein format 11 8 6.6

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine