Protein profile

KP13_03353

Ribonuclease I

Genome: KpKP13

Gene: rna AHE45732.1 Structure source: AlphaFold + ColabFold UniProt A0A0H3GJX4

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Amino acids 265

Annotations 3

Features 19

PDB binders 1

Druggability 0.778

Overview

Basic information about this protein and its source genome.

Accession: KP13_03353
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: rna AHE45732.1
Status: annotated
Amino acids: 265
Structure source: AlphaFold + ColabFold

GO:0003723 Binding to an RNA molecule or a portion thereof. GO:0033897 Catalysis of the reaction: a ribonucleotidyl-ribonucleotide-RNA + H2O = a 3'-end 3'-phospho-ribonucleotide-RNA + a 5'-end dephospho-ribonucleoside-RNA + H+. This reaction is a two-stage endonucleolytic cleavage to nucleoside 3'-phosphates and 3'-phosphooligonucleotides with 2',3'-cyclic phosphate intermediates. 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: No hit
Human identity (%): 0.0
Gut microbiome off-target: hit
Essential (DEG): N
DEG identity (%): 0.0
Localization: Periplasmic
ColabFold pLDDT: 94.11

Selected Druggability evidence

AlphaFold / UniProt model

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 0.778

Structure A0A0H3GJX4

Pocket Pocket 7

P2Rank 0.927

Structure A0A0H3GJX4

Pocket Pocket 1

ColabFold model

FPocket 0.542 · Pocket 11

P2Rank 0.923 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 63 / 4744 genomes with a hit

Normalized 0.013

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Gene Ontology (GO)

GO:0003723 Binding to an RNA molecule or a portion thereof.
GO:0033897 Catalysis of the reaction: a ribonucleotidyl-ribonucleotide-RNA + H2O = a 3'-end 3'-phospho-ribonucleotide-RNA + a 5'-end dephospho-ribonucleoside-RNA + H+. This reaction is a two-stage endonucleolytic cleavage to nucleoside 3'-phosphates and 3'-phosphooligonucleotides with 2',3'-cyclic phosphate intermediates.
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.

Sequence Features

Domain/signature hits from InterPro and related databases.

19 records

Show feature table

Start	End	DB	Term	Name
16	20	Phobius	SIGNAL_PEPTIDE_C_REGION	C-terminal region of a signal peptide.
6	15	Phobius	SIGNAL_PEPTIDE_H_REGION	Hydrophobic region of a signal peptide.
1	20	Phobius	SIGNAL_PEPTIDE	Signal peptide region
1	5	Phobius	SIGNAL_PEPTIDE_N_REGION	N-terminal region of a signal peptide.
72	79	ProSitePatterns	PS00530	Ribonuclease T2 family histidine active site 1.
72	79	InterPro	IPR018188	Ribonuclease T2, His active site 1
23	265	Gene3D	G3DSA:3.90.730.10	-
23	265	InterPro	IPR036430	Ribonuclease T2-like superfamily
30	259	SUPERFAMILY	SSF55895	Ribonuclease Rh-like
30	259	InterPro	IPR036430	Ribonuclease T2-like superfamily
31	231	Pfam	PF00445	Ribonuclease T2 family
31	231	InterPro	IPR001568	Ribonuclease T2-like
1	20	SignalP_GRAM_NEGATIVE	SignalP-noTM	SignalP-noTM
145	156	ProSitePatterns	PS00531	Ribonuclease T2 family histidine active site 2.
145	156	InterPro	IPR033130	Ribonuclease T2, His active site 2
1	20	SignalP_GRAM_POSITIVE	SignalP-TM	SignalP-TM
21	265	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
19	234	PANTHER	PTHR11240	RIBONUCLEASE T2
19	234	InterPro	IPR001568	Ribonuclease T2-like

3D Structure

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

Loading 3D structure...

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Structural evidence

0 + 2

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

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold AF_A0A0H3GJX4	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_03353	ColabFold	—	—	full sequence	—	Loaded

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
7				0.778
8				0.255

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK	Score	Probability
1	12.26	0.644
2	10.07	0.542
3	1.61	0.026
4	1.3	0.014

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
11				0.542

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK	Score	Probability
1	12.12	0.639
2	10.34	0.555
3	1.47	0.02
4	0.8	0.002

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
GPG	2EA1	P21338	628.5 Da LogP -4.21 TPSA 334.3	3 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@@](=…`

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
ZINC12501360	0.794	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@@H](O)[C@@H]2OP…`
ZINC104869865	0.754	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(O…`
ZINC12504289	0.754	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC34541308	0.754	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC35000839	0.754	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC45284491	0.754	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC80639694	0.754	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC8215481	0.754	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(…`
ZINC12501413	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@@H](O)…`
ZINC12958448	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@H](O)[…`
ZINC1532555	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@H](O)[…`
ZINC16546189	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@H](O)[…`
ZINC2159505	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O)[C@@H](O)…`
ZINC3073318	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)…`
ZINC3869963	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)…`
ZINC3869965	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@@H](COP(=O)(O)O)[C@@H](O…`
ZINC9334496	0.746	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](COP(=O)(O)O)[C@H](O)[…`
ZINC1532637	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO)[C@H](O)[C@@H]2O)c…`
ZINC1550030	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)c…`
ZINC1570863	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@H](CO)[C@@H](O)[C@H]2O)c(…`
ZINC1698205	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@H](CO)[C@@H](O)[C@@H]2O)c…`
ZINC2020098	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO)[C@H](O)[C@H]2O)c(…`
ZINC3869967	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO)[C@@H](O)[C@H]2O)c…`
ZINC3869968	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@@H](CO)[C@@H](O)[C@H]2O)…`
ZINC3869969	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO)[C@@H](O)[C@@H]2O)…`
ZINC3869970	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@@H](CO)[C@@H](O)[C@@H]2O…`
ZINC5605239	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@@H](CO)[C@H](O)[C@H]2O)c…`
ZINC6119283	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@H](O)[C@H]2O)c(…`
ZINC6585367	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@@H](O)[C@@H]2O)…`
ZINC8613125	0.717	283.2 Da LogP -2.69 TPSA 159.5	✓ Ro5	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@H](O)[C@@H]2O)c…`
ZINC12503440	0.697	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@@H](OP(=O)(O)O)…`
ZINC1530370	0.697	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO)[C@H](OP(=O)(O)O)[…`
ZINC28631009	0.697	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@H](OP(=O)(O)O)[…`
ZINC3872740	0.697	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO)[C@@H](OP(=O)(O)O)…`
ZINC3872741	0.697	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@@H](CO)[C@@H](OP(=O)(O)O…`
ZINC3872742	0.697	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2O[C@@H](CO)[C@@H](OP(=O)(O)O)…`
ZINC3872743	0.697	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@@H](CO)[C@@H](OP(=O)(O)O…`
ZINC13783929	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@H]1[C@@H](n2cnc3c(=O)[nH]c(N)nc32)O[C@H](C…`
ZINC2522480	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@H]1[C@@H](O)[C@H](CO)O[C@@H]1n1cnc2c(=O)[n…`
ZINC34283520	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@@H]1[C@@H](O)[C@@H](CO)O[C@H]1n1cnc2c(=O)[…`
ZINC44699728	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@H]1[C@@H](O)[C@@H](CO)O[C@H]1n1cnc2c(=O)[n…`
ZINC5998211	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1n1cnc2c(=O)[n…`
ZINC8830753	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@H]1[C@@H](n2cnc3c(=O)[nH]c(N)nc32)O[C@@H](…`
ZINC8830754	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@@H]1[C@@H](n2cnc3c(=O)[nH]c(N)nc32)O[C@@H]…`
ZINC8830755	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@@H]1[C@@H](O)[C@H](CO)O[C@@H]1n1cnc2c(=O)[…`
ZINC96085730	0.692	297.3 Da LogP -2.03 TPSA 148.5	✓ Ro5	✓ Clean	`CO[C@H]1[C@H](O)[C@@H](CO)O[C@H]1n1cnc2c(=O)[nH…`
ZINC100727895	0.677	347.2 Da LogP -2.50 TPSA 196.8	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@@H](O)[C@H]2P(=…`
ZINC17610743	0.677	347.2 Da LogP -2.50 TPSA 196.8	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO)[C@@H](O)[C@@H]2P(…`
ZINC115136272	0.676	341.3 Da LogP -2.02 TPSA 157.7	✓ Ro5	✓ Clean	`COCCO[C@H]1[C@H](O)[C@@H](CO)O[C@H]1n1cnc2c(=O)…`
ZINC90556174	0.676	341.3 Da LogP -2.02 TPSA 157.7	✓ Ro5	✓ Clean	`COCCO[C@H]1[C@@H](O)[C@@H](CO)O[C@@H]1n1cnc2c(=…`

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.