Protein profile

PA3806

23S rRNA (adenine(2503)-C(2))-methyltransferase RlmN

Genome: NC_002516.2

Gene: PA3806 rlmN Structure source: AlphaFold UniProt Q51385

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Amino acids 379

Annotations 14

Features 24

PDB binders 1

Druggability 0.42

Overview

Basic information about this protein and its source genome.

Accession: PA3806
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: PA3806 rlmN
Status: annotated
Amino acids: 379
Structure source: AlphaFold

2.1.1.192

GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. GO:0051539 Binding to a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands. GO:0046872 Binding to a metal ion. GO:0070040 Catalysis of the reaction: adenosine2503 in 23S rRNA + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine = 2-methyladenosine2503 in 23S rRNA + 5'-deoxyadenosine + L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] + S-adenosyl-L-homocysteine. GO:0019843 Binding to a ribosomal RNA. GO:0002935 Catalysis of the reaction: adenosine37 in tRNA + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine = 2-methyladenosine37 in tRNA + 5'-deoxyadenosine + L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] + S-adenosyl-L-homocysteine.

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
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 0.42

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 13 GO

Enzyme Commission (EC)

2.1.1.192

Gene Ontology (GO)

GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
GO:0051539 Binding to a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands.
GO:0046872 Binding to a metal ion.
GO:0070040 Catalysis of the reaction: adenosine2503 in 23S rRNA + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine = 2-methyladenosine2503 in 23S rRNA + 5'-deoxyadenosine + L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] + S-adenosyl-L-homocysteine.
GO:0019843 Binding to a ribosomal RNA.
GO:0002935 Catalysis of the reaction: adenosine37 in tRNA + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine = 2-methyladenosine37 in tRNA + 5'-deoxyadenosine + L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] + S-adenosyl-L-homocysteine.
GO:0000049 Binding to a transfer RNA.
GO:0070475 The addition of a methyl group to an atom in the nucleoside base portion of a nucleotide residue in an rRNA molecule.
GO:0030488 The posttranscriptional addition of methyl groups to specific residues in a tRNA molecule.
GO:0008173 Catalysis of the transfer of a methyl group from a donor to a nucleoside residue in an RNA molecule.
GO:0006364 Any process involved in the conversion of a primary ribosomal RNA (rRNA) transcript into one or more mature rRNA molecules.
GO:0003824 Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
GO:0051536 Binding to an iron-sulfur cluster, a combination of iron and sulfur atoms.

Sequence Features

Domain/signature hits from InterPro and related databases.

24 records

Show feature table

Start	End	DB	Term	Name
6	361	SFLD	SFLDF00275	adenosine C2 methyltransferase (RlmN-like)
6	361	InterPro	IPR004383	Ribosomal RNA large subunit methyltransferase RlmN/Cfr
108	320	SUPERFAMILY	SSF102114	Radical SAM enzymes
4	368	PIRSF	PIRSF006004	Cfr
4	368	InterPro	IPR004383	Ribosomal RNA large subunit methyltransferase RlmN/Cfr
8	355	Hamap	MF_01849	Dual-specificity RNA methyltransferase RlmN [rlmN].
8	355	InterPro	IPR027492	Dual-specificity RNA methyltransferase RlmN
70	351	FunFam	G3DSA:3.20.20.70:FF:000008	Dual-specificity RNA methyltransferase RlmN
6	361	SFLD	SFLDS00029	Radical SAM
6	361	InterPro	IPR007197	Radical SAM
5	357	PANTHER	PTHR30544	23S RRNA METHYLTRANSFERASE
5	357	InterPro	IPR040072	Methyltransferase (Class A)
112	280	Pfam	PF04055	Radical SAM superfamily
112	280	InterPro	IPR007197	Radical SAM
4	69	FunFam	G3DSA:1.10.150.530:FF:000003	Dual-specificity RNA methyltransferase RlmN
370	379	Coils	Coil	Coil
103	343	ProSiteProfiles	PS51918	Radical SAM core domain profile.
103	343	InterPro	IPR007197	Radical SAM
72	358	Gene3D	G3DSA:3.20.20.70	Aldolase class I
72	358	InterPro	IPR013785	Aldolase-type TIM barrel
116	317	CDD	cd01335	Radical_SAM
1	69	Gene3D	G3DSA:1.10.150.530	-
5	359	NCBIfam	TIGR00048	23S rRNA (adenine(2503)-C(2))-methyltransferase RlmN
5	359	InterPro	IPR027492	Dual-specificity RNA methyltransferase RlmN

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 PA3806	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
3				0.42
12				0.244

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.

51 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
5AD	5HR6	P36979	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@@H]1[C@H]([C@H]([C@@H](O1)n2cnc3c2ncnc3N)O)O`

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).

No ChEMBL hits found through similar proteins.

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
ZINC100352250	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H]1O`
ZINC1095430	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@H](O)[C@H]1O`
ZINC13542750	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H]…`
ZINC135734	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@H]1O`
ZINC17005625	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@H](O)[C@H]1O`
ZINC1999286	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H]1O`
ZINC3869309	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@H]1O`
ZINC3869310	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@H]…`
ZINC3869311	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H]…`
ZINC3869312	1.000	251.2 Da LogP -0.95 TPSA 119.3	✓ Ro5	✓ Clean	`C[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H…`
ZINC1702626	0.974	281.3 Da LogP -1.59 TPSA 139.5	✓ Ro5	✓ Clean	`C[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H]…`
ZINC4821676	0.974	281.3 Da LogP -1.59 TPSA 139.5	✓ Ro5	✓ Clean	`C[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H…`
ZINC4821679	0.974	281.3 Da LogP -1.59 TPSA 139.5	✓ Ro5	✓ Clean	`C[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H]…`
ZINC4821682	0.974	281.3 Da LogP -1.59 TPSA 139.5	✓ Ro5	✓ Clean	`C[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H…`
ZINC5139067	0.721	283.3 Da LogP -1.04 TPSA 119.3	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CS)[C@@H](O)[C@H]1O`
ZINC2047403	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@@H](O)[C@@H]1O`
ZINC2047673	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@H](O)[C@@H]1O`
ZINC2169830	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O`
ZINC3201876	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO)[C@@H](O)[C@@H]1O`
ZINC3201878	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H]…`
ZINC3814316	0.705	266.3 Da LogP -2.01 TPSA 145.3	✓ Ro5	✓ Clean	`NC[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H]…`
ZINC3830178	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@@H](O)[C@H]1O`
ZINC3830179	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@H]1O`
ZINC3978047	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@H](O)[C@H]1O`
ZINC3978048	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO)[C@H](O)[C@H]1O`
ZINC3978049	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@H](O)[C@H]1O`
ZINC4048240	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CO)[C@@H](O)[C@H]1O`
ZINC4773848	0.705	266.3 Da LogP -2.01 TPSA 145.3	✓ Ro5	✓ Clean	`NC[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H]…`
ZINC4773849	0.705	266.3 Da LogP -2.01 TPSA 145.3	✓ Ro5	✓ Clean	`NC[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H…`
ZINC4773850	0.705	266.3 Da LogP -2.01 TPSA 145.3	✓ Ro5	✓ Clean	`NC[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@H…`
ZINC4773851	0.705	266.3 Da LogP -2.01 TPSA 145.3	✓ Ro5	✓ Clean	`NC[C@@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@…`
ZINC77981211	0.705	266.3 Da LogP -2.01 TPSA 145.3	✓ Ro5	✓ Clean	`NC[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@H]…`
ZINC82228511	0.705	266.3 Da LogP -2.01 TPSA 145.3	✓ Ro5	✓ Clean	`NC[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@H](O)[C@H]1O`
ZINC8580514	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@H](O)[C@@H]1O`
ZINC895113	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@H](O)[C@@H]1O`
ZINC896706	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@H](O)[C@H]1O`
ZINC970363	0.705	267.2 Da LogP -1.98 TPSA 139.5	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](O)[C@@H]1O`
ZINC1081541	0.689	285.7 Da LogP -0.73 TPSA 119.3	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CCl)[C@@H](O)[C@@H]…`
ZINC4188096	0.689	297.3 Da LogP -2.62 TPSA 159.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](…`
ZINC4188103	0.689	297.3 Da LogP -2.62 TPSA 159.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H]…`
ZINC4188112	0.689	297.3 Da LogP -2.62 TPSA 159.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](…`
ZINC4188116	0.689	297.3 Da LogP -2.62 TPSA 159.8	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H]…`
ZINC5941240	0.689	269.2 Da LogP -1.00 TPSA 119.3	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CF)[C@@H](O)[C@H]1O`
ZINC100349915	0.681	297.3 Da LogP -0.61 TPSA 119.3	✓ Ro5	✓ Clean	`CSC[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H…`
ZINC105279440	0.681	297.3 Da LogP -0.61 TPSA 119.3	✓ Ro5	✓ Clean	`CSC[C@H]1O[C@H](n2cnc3c(N)ncnc32)[C@H](O)[C@H]1O`
ZINC12501834	0.681	297.3 Da LogP -0.61 TPSA 119.3	✓ Ro5	✓ Clean	`CSC[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@@…`
ZINC1318753	0.681	297.3 Da LogP -0.61 TPSA 119.3	✓ Ro5	✓ Clean	`CSC[C@@H]1O[C@H](n2cnc3c(N)ncnc32)[C@H](O)[C@H]…`
ZINC25963247	0.681	297.3 Da LogP -0.61 TPSA 119.3	✓ Ro5	✓ Clean	`CSC[C@H]1O[C@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@H]…`
ZINC3869319	0.681	297.3 Da LogP -0.61 TPSA 119.3	✓ Ro5	✓ Clean	`CSC[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@@H](O)[C@H…`
ZINC4228245	0.681	297.3 Da LogP -0.61 TPSA 119.3	✓ Ro5	✓ Clean	`CSC[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H…`

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.