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Target Snapshot

CHEMBL1923 Target Snapshot

Histidine-rich protein PFHRP-II · SINGLE PROTEIN · Plasmodium falciparum

417Compounds
75Assays
1Approved Drugs
210.0Activities
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 P05227. Use UniProt P05227 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt P05227 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 Histidine-rich protein PFHRP-II as ChEMBL target CHEMBL1923, mapped to UniProt P05227. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Histidine-rich protein PFHRP-II
SINGLE PROTEIN · Plasmodium falciparum
As of 2026-09-13
ChEMBL target ID
CHEMBL1923
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P05227
Histidine-rich protein PFHRP-II
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

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UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Histidine-rich protein PFHRP-II is the right protein anchor across sources, using UniProt P05227 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 LabelHistidine-rich protein PFHRP-II
UniProt AccessionP05227
Component TypeProtein
Sequence Length332 aa

Histidine-rich protein PFHRP-II

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Histidine-rich protein PFHRP-II, mapped to UniProt P05227. Sequence length is 332 aa.

Mapped IDP05227
Review nameHistidine-rich protein PFHRP-II
OrganismPlasmodium falciparum
Clinical Profile

Clinical Phase Distribution

1
Approved
Assay Mix

Activity Type Distribution

IC50210.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL356811 8.17 IC50 6.7 Preclinical
CHEMBL345958 7.82 IC50 15.0 Preclinical
CHEMBL357948 7.63 IC50 23.3 Preclinical
CHEMBL2111198 7.63 IC50 23.5 Preclinical
CHEMBL153507 7.57 IC50 27.1 Preclinical
CHEMBL149751 7.47 IC50 34.2 Preclinical
CHEMBL152862 7.47 IC50 34.0 Preclinical
CHEMBL357111 7.45 IC50 35.6 Preclinical
CHEMBL356005 7.43 IC50 37.5 Preclinical
CHEMBL152635 7.4 IC50 40.2 Preclinical
Distribution

pChEMBL Value Distribution

0
5.0
3
5.5
28
6.0
1
6.5
15
7.0
4
7.5
1
8.0
0
8.5
0
9.0
0
9.5
pChEMBL
Approved Drugs

Approved Drugs

CHLOROQUINE
CHEMBL76
Approved 1949
Assay Landscape

Assay Landscape

76
Total Assays
64
Tested Compounds
2
Assay Types
Functional — 69 assays, 64 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 67 64 5.3
organism-based format 2 0
Binding — 7 assays, 39 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 7 39 6.2

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine