Protein profile

PA3861

ATP-dependent RNA helicase RhlB

Genome: NC_002516.2

Gene: rhlB rhl PA3861 Structure source: AlphaFold UniProt Q9HXE5

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Amino acids 397

Annotations 8

Features 27

PDB binders 7

Druggability 0.6

Overview

Basic information about this protein and its source genome.

Accession: PA3861
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: rhlB rhl PA3861
Status: annotated
Amino acids: 397
Structure source: AlphaFold

3.6.4.13

GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. GO:0016887 Catalysis of the reaction: ATP + H2O = ADP + H+ phosphate. ATP hydrolysis is used in some reactions as an energy source, for example to catalyze a reaction or drive transport against a concentration gradient. GO:0003723 Binding to an RNA molecule or a portion thereof. GO:0003724 Unwinding of an RNA helix, driven by ATP hydrolysis. GO:0006401 The chemical reactions and pathways resulting in the breakdown of RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 53.247
Human E-value: 1.01e-17
Gut microbiome off-target: hit
Essential (DEG): Y
Localization: Cytoplasmic

Selected Druggability evidence

Selected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.

FPocket 0.6

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 7 GO

Enzyme Commission (EC)

3.6.4.13

Gene Ontology (GO)

GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
GO:0016887 Catalysis of the reaction: ATP + H2O = ADP + H+ phosphate. ATP hydrolysis is used in some reactions as an energy source, for example to catalyze a reaction or drive transport against a concentration gradient.
GO:0003723 Binding to an RNA molecule or a portion thereof.
GO:0003724 Unwinding of an RNA helix, driven by ATP hydrolysis.
GO:0006401 The chemical reactions and pathways resulting in the breakdown of RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.
GO:0003676 Binding to a nucleic acid.

Sequence Features

Domain/signature hits from InterPro and related databases.

27 records

Show feature table

Start	End	DB	Term	Name
6	392	PANTHER	PTHR47959	ATP-DEPENDENT RNA HELICASE RHLE-RELATED
243	352	Pfam	PF00271	Helicase conserved C-terminal domain
243	352	InterPro	IPR001650	Helicase, C-terminal
9	37	ProSiteProfiles	PS51195	DEAD-box RNA helicase Q motif profile.
9	37	InterPro	IPR014014	RNA helicase, DEAD-box type, Q motif
271	352	SMART	SM00490	helicmild6
271	352	InterPro	IPR001650	Helicase, C-terminal
33	208	Pfam	PF00270	DEAD/DEAH box helicase
33	208	InterPro	IPR011545	DEAD/DEAH box helicase domain
164	172	ProSitePatterns	PS00039	DEAD-box subfamily ATP-dependent helicases signature.
164	172	InterPro	IPR000629	ATP-dependent RNA helicase DEAD-box, conserved site
28	235	SMART	SM00487	ultradead3
28	235	InterPro	IPR014001	Helicase superfamily 1/2, ATP-binding domain
232	360	CDD	cd18787	SF2_C_DEAD
20	221	CDD	cd00268	DEADc
40	220	ProSiteProfiles	PS51192	Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile.
40	220	InterPro	IPR014001	Helicase superfamily 1/2, ATP-binding domain
8	390	Hamap	MF_00661	ATP-dependent RNA helicase RhlB [rhlB].
8	390	InterPro	IPR023554	ATP-dependent RNA helicase RhlB type
243	393	ProSiteProfiles	PS51194	Superfamilies 1 and 2 helicase C-terminal domain profile.
243	393	InterPro	IPR001650	Helicase, C-terminal
84	368	SUPERFAMILY	SSF52540	P-loop containing nucleoside triphosphate hydrolases
84	368	InterPro	IPR027417	P-loop containing nucleoside triphosphate hydrolase
2	223	Gene3D	G3DSA:3.40.50.300	-
2	223	InterPro	IPR027417	P-loop containing nucleoside triphosphate hydrolase
226	392	Gene3D	G3DSA:3.40.50.300	-
226	392	InterPro	IPR027417	P-loop containing nucleoside triphosphate hydrolase

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

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Structural evidence

0 + 1

Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold PA3861	AlphaFold	—	—	full sequence	—	Viewing

Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

Pockets (FPOCKET)

Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).

FPOCKET	Sticks	Spheres	Surfaces	Druggability	Labels	Zoom	Positions
1				0.6
2				0.25

Ligand evidence

Ligands grouped by evidence source. PDB ligands keep the source crystal visible, and loaded crystals can be opened directly in the structure viewer.

58 records

Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in TPW, use Open crystal to inspect it in the structure viewer.

No PDB structure with a co-crystallized ligand found for this exact protein.

Structural evidence inferred from similar proteins. The source crystal indicates where the ligand was observed; the UniProt column identifies the homologous protein carrying that ligand.

Ligand	Source crystal	UniProt (homolog)	MW · LogP · TPSA	Lipinski	PAINS	SMILES
8OD	3NBF	Q72GF3	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`c1nc(c2c(n1)N(C(=O)N2)[C@H]3[C@@H]([C@@H]([C@H]…`
8OP	3MWK	Q72GF3	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`c1nc(c2c(n1)N(C(=O)N2)[C@H]3[C@@H]([C@@H]([C@H]…`
8OX	3MWL	Q72GF3	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`c1nc(c2c(n1)N(C(=O)N2)[C@H]3[C@@H]([C@@H]([C@H]…`
ANP	5E7M	O00571	506.2 Da LogP -2.06 TPSA 281.9	3 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
CXS	4NHO	Q9BUQ8	221.3 Da LogP 1.19 TPSA 66.4	✓ Ro5	✓ Clean	`C1CCC(CC1)NCCCS(=O)(=O)O`
IHP	6QX9	Q9BUQ8	660.0 Da LogP -3.13 TPSA 400.6	3 viol.	✓ Clean	`C1(C(C(C(C(C1OP(=O)(O)O)OP(=O)(O)O)OP(=O)(O)O)O…`
M7M	6QX9	Q9BUQ8	487.3 Da LogP -2.28 TPSA 218.4	2 viol.	✓ Clean	`CN1CN(C2=C1C(=O)N=C(N2)N(C)C)[C@H]3[C@@H]([C@@H…`

Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

No ChEMBL bioactivity data found for this exact protein.

Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

Ligand	UniProt (homolog)	pchembl	MW · LogP · TPSA	Lipinski	PAINS	SMILES
CHEMBL501187	O00571	—	563.7 Da LogP 3.76 TPSA 162.6	1 viol.	✓ Clean	`CCCCCCCCCCCCCCCCCCNc1nc(=O)c2ncn([C@@H]3O[C@H](…`

Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).

Ligand	Tanimoto	MW · LogP · TPSA	Lipinski	PAINS	SMILES
ZINC2004372	1.000	221.3 Da LogP 1.19 TPSA 66.4	✓ Ro5	✓ Clean	`O=S(=O)(O)CCCNC1CCCCC1`
ZINC38364153	0.926	235.3 Da LogP 1.58 TPSA 66.4	✓ Ro5	✓ Clean	`O=S(=O)(O)CCCCNC1CCCCC1`
ZINC31977053	0.810	427.2 Da LogP -1.75 TPSA 232.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)OP(=O)…`
ZINC1710230	0.786	207.3 Da LogP 0.80 TPSA 66.4	✓ Ro5	✓ Clean	`O=S(=O)(O)CCNC1CCCCC1`
ZINC113264413	0.778	317.4 Da LogP 3.98 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccc(-c2ccc(-c3ccccc3)cc2)cc1)C(=O)O`
ZINC113264415	0.778	317.4 Da LogP 3.98 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@H](Cc1ccc(-c2ccc(-c3ccccc3)cc2)cc1)C(=O)O`
ZINC2244337	0.778	241.3 Da LogP 2.31 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccc(-c2ccccc2)cc1)C(=O)O`
ZINC2244338	0.778	241.3 Da LogP 2.31 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@H](Cc1ccc(-c2ccccc2)cc1)C(=O)O`
ZINC104199549	0.771	265.2 Da LogP -1.64 TPSA 131.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1[nH]c(=O)n2[C@H]1O[C@@H](CO)[C@@H]2O[…`
ZINC104199552	0.771	265.2 Da LogP -1.64 TPSA 131.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1[nH]c(=O)n2[C@@H]1O[C@@H](CO)[C@@H]2O…`
ZINC1566227	0.771	265.2 Da LogP -1.64 TPSA 131.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1[nH]c(=O)n2[C@H]1O[C@@H](CO)[C@@H]2O[…`
ZINC5389846	0.771	265.2 Da LogP -1.64 TPSA 131.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1[nH]c(=O)n2[C@@H]1O[C@@H](CO)[C@@H]2O…`
ZINC1834294	0.769	252.3 Da LogP -0.40 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@@H](Cc1cccc(C[C@H](N)C(=O)O)c1)C(=O)O`
ZINC1834295	0.769	252.3 Da LogP -0.40 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@@H](Cc1cccc(C[C@@H](N)C(=O)O)c1)C(=O)O`
ZINC1834297	0.769	252.3 Da LogP -0.40 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@H](Cc1cccc(C[C@@H](N)C(=O)O)c1)C(=O)O`
ZINC39351856	0.731	328.4 Da LogP 1.26 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccc(-c2ccc(C[C@H](N)C(=O)O)cc2)cc1)C…`
ZINC4096224	0.729	346.2 Da LogP -1.90 TPSA 191.9	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](N)(=O)O)[C@@…`
ZINC2561081	0.724	269.3 Da LogP 1.87 TPSA 80.4	✓ Ro5	✓ Clean	`N[C@H](Cc1ccc(C(=O)c2ccccc2)cc1)C(=O)O`
ZINC2561082	0.724	269.3 Da LogP 1.87 TPSA 80.4	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccc(C(=O)c2ccccc2)cc1)C(=O)O`
ZINC13556870	0.722	420.1 Da LogP -3.48 TPSA 261.0	1 viol.	✓ Clean	`O=P(O)(O)O[C@H]1[C@@H](O)[C@@H](O)[C@H](O)[C@@H…`
ZINC71789368	0.722	420.1 Da LogP -3.48 TPSA 261.0	1 viol.	✓ Clean	`O=P(O)(O)O[C@H]1[C@H](OP(=O)(O)O)[C@@H](O)[C@H]…`
ZINC71792243	0.722	420.1 Da LogP -3.48 TPSA 261.0	1 viol.	✓ Clean	`O=P(O)(O)O[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H…`
ZINC105372833	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@H](O…`
ZINC105372837	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@H](O…`
ZINC17107643	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@@H](…`
ZINC204538551	0.712	345.3 Da LogP -1.93 TPSA 197.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](COP(N)(N)=O)[C@@H](…`
ZINC100015956	0.706	420.1 Da LogP -3.48 TPSA 261.0	1 viol.	✓ Clean	`O=P(O)(O)O[C@H]1[C@H](O)[C@@H](OP(=O)(O)O)[C@H]…`
ZINC100015959	0.706	420.1 Da LogP -3.48 TPSA 261.0	1 viol.	✓ Clean	`O=P(O)(O)O[C@H]1[C@H](O)[C@@H](OP(=O)(O)O)[C@H]…`
ZINC100016166	0.706	340.1 Da LogP -3.60 TPSA 214.4	1 viol.	✓ Clean	`O=P(O)(O)O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](OP(=O…`
ZINC100590871	0.706	420.1 Da LogP -3.48 TPSA 261.0	1 viol.	✓ Clean	`O=P(O)(O)O[C@H]1[C@H](O)[C@H](OP(=O)(O)O)[C@H](…`
ZINC1501016356	0.706	420.1 Da LogP -3.48 TPSA 261.0	1 viol.	✓ Clean	`O=P(O)(O)OC1C(O)[C@H](OP(=O)(O)O)C(O)[C@H](OP(=…`
ZINC31475423	0.703	434.3 Da LogP -2.99 TPSA 238.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO[P@@](=O)(O)OC(=O)…`
ZINC113539705	0.700	265.3 Da LogP 2.04 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccc(C#Cc2ccccc2)cc1)C(=O)O`
ZINC113539708	0.700	265.3 Da LogP 2.04 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@H](Cc1ccc(C#Cc2ccccc2)cc1)C(=O)O`
ZINC116910786	0.700	269.3 Da LogP 3.06 TPSA 88.0	✓ Ro5	Alert	`N[C@@H](Cc1ccc(/N=N/c2ccccc2)cc1)C(=O)O`
ZINC29566843	0.700	241.3 Da LogP 2.31 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@H](Cc1cccc(-c2ccccc2)c1)C(=O)O`
ZINC29570997	0.700	241.3 Da LogP 2.31 TPSA 63.3	✓ Ro5	✓ Clean	`N[C@@H](Cc1cccc(-c2ccccc2)c1)C(=O)O`
ZINC44283581	0.700	257.3 Da LogP 2.43 TPSA 72.5	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccc(Oc2ccccc2)cc1)C(=O)O`
ZINC44283583	0.700	257.3 Da LogP 2.43 TPSA 72.5	✓ Ro5	✓ Clean	`N[C@H](Cc1ccc(Oc2ccccc2)cc1)C(=O)O`
ZINC105469665	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@@](=O)(O)CP(=O…`
ZINC13527614	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)CP(=O)…`
ZINC219330894	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873852	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873853	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@](=O)(O)CP(=O…`
ZINC3873854	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO[P@](=O)(O)CP(=O)…`
ZINC3873855	0.694	425.2 Da LogP -1.64 TPSA 223.4	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO[P@](=O)(O)CP(=O…`
ZINC2111574	0.692	252.3 Da LogP -0.40 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccccc1C[C@H](N)C(=O)O)C(=O)O`
ZINC2111575	0.692	252.3 Da LogP -0.40 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@@H](Cc1ccccc1C[C@@H](N)C(=O)O)C(=O)O`
ZINC2111578	0.692	252.3 Da LogP -0.40 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@H](Cc1ccccc1C[C@@H](N)C(=O)O)C(=O)O`
ZINC1616446	0.690	354.5 Da LogP 0.36 TPSA 110.2	✓ Ro5	✓ Clean	`N[C@H](Cc1ccccc1)C(=O)NCCNC(=O)[C@H](N)Cc1ccccc1`

PDB and ChEMBL records on this protein are shown in full. ChEMBL records from similar proteins are capped at the top 100 per protein (by pchembl) and ZINC at the top 50 (Tanimoto ≥ 0.5). ADME columns are descriptor-based screening flags, not experimental toxicity results.