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Target Snapshot

CHEMBL243 Target Snapshot

Human immunodeficiency virus type 1 protease · SINGLE PROTEIN · Human immunodeficiency virus 1

6,081Compounds
973Assays
33Approved Drugs
7,339.0Activities
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

Human immunodeficiency virus type 1 protease shows approved-linked disease relevance led by HIV infection. 5 more disease programs remain visible in the same review block. 14 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt Q72874. Start with HIV infection, then reuse UniProt Q72874 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with HIV infection, then reuse UniProt Q72874 as the stable protein anchor across project notes and exports.

ChEMBL component mapping + Open Targets-ready proxy + ChEMBL 36 via Core Engine 2026-09-14 14 linked drugs
Open source guide
Disease program
HIV infection

Human immunodeficiency virus type 1 protease shows approved-linked disease relevance led by HIV infection. 5 more disease programs remain visible in the same review block. 14 linked drugs remain visible in the same block.

Start review with HIV infection because it currently carries approved-linked support. Linked drugs include AMPRENAVIR, ATAZANAVIR SULFATE, BRECANAVIR, DARUNAVIR. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Disease source · ChEMBL drug mechanism + indication proxy
Approved-linked Open Targets-ready proxy 14 linked drugs
Open disease block
Identity Layer

Cross-source identity

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

This review treats Human immunodeficiency virus type 1 protease as ChEMBL target CHEMBL243, mapped to UniProt Q72874. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Human immunodeficiency virus type 1 protease
SINGLE PROTEIN · Human immunodeficiency virus 1
As of 2026-09-14
ChEMBL target ID
CHEMBL243
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
Q72874
Pol polyprotein
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

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

Start here when your first question is whether Human immunodeficiency virus type 1 protease is the right protein anchor across sources, using UniProt Q72874 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 to confirm why HIV infection is currently framed as approved-linked support. It currently carries 14 linked drugs in the same disease frame.

Jump to Disease Context
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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 LabelPol polyprotein
UniProt AccessionQ72874
Component TypeProtein
Sequence Length99 aa

Pol polyprotein

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Human immunodeficiency virus type 1 protease, mapped to UniProt Q72874. ChEMBL maps the protein component as Pol polyprotein. Sequence length is 99 aa.

Mapped IDQ72874
Review nameHuman immunodeficiency virus type 1 protease
OrganismHuman immunodeficiency virus 1
Disease Relevance

Disease Relevance & Evidence Level

Open Targets-ready disease context using the current target-indication evidence contract.

Approved-linked Open Targets-ready proxy

Human immunodeficiency virus type 1 protease shows approved-linked disease relevance led by HIV infection. 5 more disease programs remain visible in the same review block.

Approved-linked Approved
HIV infection
14 linked drugs · 14 direct · 14 efficacy
Linked drugAMPRENAVIR
Linked drugATAZANAVIR SULFATE
Linked drugBRECANAVIR
Linked drugDARUNAVIR
Approved-linked Approved
HIV-1 infection
8 linked drugs · 8 direct · 8 efficacy
Linked drugATAZANAVIR SULFATE
Linked drugBRECANAVIR
Linked drugDARUNAVIR
Linked drugDARUNAVIR ETHANOLATE
Approved-linked Approved
infection
5 linked drugs · 5 direct · 5 efficacy
Linked drugATAZANAVIR SULFATE
Linked drugDARUNAVIR
Linked drugDARUNAVIR ETHANOLATE
Linked drugLOPINAVIR
Approved-linked Approved
viral disease
5 linked drugs · 5 direct · 5 efficacy
Linked drugAMPRENAVIR
Linked drugDARUNAVIR
Linked drugRITONAVIR
Linked drugSAQUINAVIR
Approved-linked Approved
hepatitis C virus infection
3 linked drugs · 3 direct · 3 efficacy
Linked drugDARUNAVIR
Linked drugLOPINAVIR
Linked drugRITONAVIR
Approved-linked Approved
immunodeficiency disease
2 linked drugs · 2 direct · 2 efficacy
Linked drugDARUNAVIR ETHANOLATE
Linked drugFOSAMPRENAVIR CALCIUM
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with HIV infection because it currently carries approved-linked support. Linked drugs include AMPRENAVIR, ATAZANAVIR SULFATE, BRECANAVIR, DARUNAVIR. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseaseHIV infection
Strongest levelApproved-linked
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

33
Approved
4
Phase III
8
Phase II
2
Phase I
Assay Mix

Activity Type Distribution

IC503,546.0
KI3,667.0
EC5055.0
KD71.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL1323 11.0 Ki 0.01 Approved
CHEMBL182611 11.0 Ki 0.01 Preclinical
CHEMBL305125 11.0 Ki 0.01 Preclinical
CHEMBL333781 11.0 Ki 0.01 Preclinical
CHEMBL360212 11.0 IC50 0.01 Preclinical
CHEMBL361443 11.0 IC50 0.01 Preclinical
CHEMBL364376 11.0 IC50 0.01 Preclinical
CHEMBL364409 11.0 IC50 0.01 Preclinical
CHEMBL36900 11.0 Ki 0.01 Preclinical
CHEMBL405187 11.0 Ki 0.01 Preclinical
Distribution

pChEMBL Value Distribution

276
5.0
347
5.5
421
6.0
530
6.5
670
7.0
721
7.5
773
8.0
675
8.5
587
9.0
513
9.5
pChEMBL
Approved Drugs

Approved Drugs

DARUNAVIR
CHEMBL1323
Approved 2006
TIPRANAVIR
CHEMBL222559
Approved 2005
ATAZANAVIR
CHEMBL1163
Approved 2003
LOPINAVIR
CHEMBL729
Approved 2000
AMPRENAVIR
CHEMBL116
Approved 1999
NELFINAVIR MESYLATE
CHEMBL1205
Approved 1997
DELAVIRDINE
CHEMBL593
Approved 1997
NELFINAVIR
CHEMBL584
Approved 1997
INDINAVIR SULFATE
CHEMBL1735
Approved 1996
NEVIRAPINE
CHEMBL57
Approved 1996
RITONAVIR
CHEMBL163
Approved 1996
SAQUINAVIR
CHEMBL114
Approved 1995
ZIDOVUDINE
CHEMBL129
Approved 1987
SULFAMETHOXAZOLE
CHEMBL443
Approved 1973
HALOPERIDOL
CHEMBL54
Approved 1967
PHENPROCOUMON
CHEMBL1465
Approved 1957
ADENOSINE PHOSPHATE
CHEMBL752
Assay Landscape

Assay Landscape

974
Total Assays
4,949
Tested Compounds
2
Assay Types
Binding — 913 assays, 4,949 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 773 4,400 7.9
assay format 102 461 7.9
cell-based format 32 57 7.4
organism-based format 6 31 7.3
Functional — 61 assays, 135 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 37 82 6.6
assay format 24 53 7.2

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine