Protein profile

KP13_02023

Peptide chain release factor 3

Genome: KpKP13

Gene: AHE46459.1 prfC Structure source: AlphaFold + ColabFold UniProt A0A0H3GMW6

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Amino acids 529

Annotations 9

Features 50

PDB binders 6

Druggability 0.289

Overview

Basic information about this protein and its source genome.

Accession: KP13_02023
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE46459.1 prfC
Status: annotated
Amino acids: 529
Structure source: AlphaFold + ColabFold

GO:0003924 Catalysis of the reaction: GTP + H2O = GDP + H+ + phosphate. GO:0005525 Binding to GTP, guanosine triphosphate. GO:0006415 The process resulting in the release of a polypeptide chain from the ribosome, usually in response to a termination codon (UAA, UAG, or UGA in the universal genetic code). GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. GO:0097216 Binding to guanosine tetraphosphate (5'-ppGpp-3'), a guanosine bisphosphate having diphosphate groups at both the 3' and 5'-positions.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 42.857
Human E-value: 6.08e-07
Gut microbiome off-target: hit
Essential (DEG): Y
DEG identity (%): 87.097
DEG E-value: 0.0
Localization: Cytoplasmic
ColabFold pLDDT: 88.65

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 0.289

Structure A0A0H3GMW6

Pocket Pocket 1

P2Rank 0.712

Structure A0A0H3GMW6

Pocket Pocket 1

ColabFold model

FPocket 0.72 · Pocket 2

P2Rank 0.628 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 840 / 4744 genomes with a hit

Normalized 0.177

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

9 GO

Gene Ontology (GO)

GO:0003924 Catalysis of the reaction: GTP + H2O = GDP + H+ + phosphate.
GO:0005525 Binding to GTP, guanosine triphosphate.
GO:0006415 The process resulting in the release of a polypeptide chain from the ribosome, usually in response to a termination codon (UAA, UAG, or UGA in the universal genetic code).
GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
GO:0097216 Binding to guanosine tetraphosphate (5'-ppGpp-3'), a guanosine bisphosphate having diphosphate groups at both the 3' and 5'-positions.
GO:0016150 A translation release factor that is not specific to particular codons; binds to guanine nucleotides.
GO:0016149 A translation release factor that is specific for one or more particular termination codons; acts at the ribosomal A-site and require polypeptidyl-tRNA at the P-site.
GO:0006449 Any process that modulates the frequency, rate or extent of translational termination.

Sequence Features

Domain/signature hits from InterPro and related databases.

50 records

Show feature table

Start	End	DB	Term	Name
280	390	FunFam	G3DSA:2.40.30.10:FF:000040	Peptide chain release factor 3
15	156	NCBIfam	TIGR00231	small GTP-binding protein domain
15	156	InterPro	IPR005225	Small GTP-binding protein domain
78	378	Gene3D	G3DSA:3.40.50.300	-
78	378	InterPro	IPR027417	P-loop containing nucleoside triphosphate hydrolase
13	277	Pfam	PF00009	Elongation factor Tu GTP binding domain
13	277	InterPro	IPR000795	Translational (tr)-type GTP-binding domain
314	380	Pfam	PF03144	Elongation factor Tu domain 2
314	380	InterPro	IPR004161	Translation elongation factor EFTu-like, domain 2
10	277	SUPERFAMILY	SSF52540	P-loop containing nucleoside triphosphate hydrolases
10	277	InterPro	IPR027417	P-loop containing nucleoside triphosphate hydrolase
390	529	Gene3D	G3DSA:3.30.70.3280	Peptide chain release factor 3, domain III
390	529	InterPro	IPR038467	Peptide chain release factor 3, domain III superfamily
12	279	CDD	cd04169	RF3
12	279	InterPro	IPR041732	Peptide chain release factor 3, GTP-binding domain
7	528	PANTHER	PTHR43556	PEPTIDE CHAIN RELEASE FACTOR RF3
7	528	InterPro	IPR004548	Peptide chain release factor 3
262	393	SUPERFAMILY	SSF50447	Translation proteins
262	393	InterPro	IPR009000	Translation protein, beta-barrel domain superfamily
390	529	FunFam	G3DSA:3.30.70.3280:FF:000001	Peptide chain release factor 3
18	77	Gene3D	G3DSA:3.40.50.300	-
18	77	InterPro	IPR027417	P-loop containing nucleoside triphosphate hydrolase
110	275	Gene3D	G3DSA:3.40.50.300	-
110	275	InterPro	IPR027417	P-loop containing nucleoside triphosphate hydrolase
4	527	Hamap	MF_00072	Peptide chain release factor 3 [prfC].
4	527	InterPro	IPR004548	Peptide chain release factor 3
393	468	SUPERFAMILY	SSF54980	EF-G C-terminal domain-like
393	468	InterPro	IPR035647	EF-G domain III/V-like
58	73	ProSitePatterns	PS00301	Translational (tr)-type guanine nucleotide-binding (G) domain signature.
58	73	InterPro	IPR031157	Tr-type G domain, conserved site
387	514	Pfam	PF16658	Class II release factor RF3, C-terminal domain
387	514	InterPro	IPR032090	Peptide chain release factor 3, C-terminal
296	382	CDD	cd03689	RF3_II
110	275	FunFam	G3DSA:3.40.50.300:FF:000184	Peptide chain release factor 3
11	280	ProSiteProfiles	PS51722	Translational (tr)-type guanine nucleotide-binding (G) domain profile.
11	280	InterPro	IPR000795	Translational (tr)-type GTP-binding domain
18	77	FunFam	G3DSA:3.40.50.300:FF:000253	Peptide chain release factor 3
395	464	CDD	cd16259	RF3_III
101	112	PRINTS	PR00315	GTP-binding elongation factor signature
101	112	InterPro	IPR000795	Translational (tr)-type GTP-binding domain
15	28	PRINTS	PR00315	GTP-binding elongation factor signature
15	28	InterPro	IPR000795	Translational (tr)-type GTP-binding domain
137	146	PRINTS	PR00315	GTP-binding elongation factor signature
137	146	InterPro	IPR000795	Translational (tr)-type GTP-binding domain
85	95	PRINTS	PR00315	GTP-binding elongation factor signature
85	95	InterPro	IPR000795	Translational (tr)-type GTP-binding domain
65	73	PRINTS	PR00315	GTP-binding elongation factor signature
65	73	InterPro	IPR000795	Translational (tr)-type GTP-binding domain
3	529	NCBIfam	TIGR00503	peptide chain release factor 3
3	529	InterPro	IPR004548	Peptide chain release factor 3

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_A0A0H3GMW6	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_02023	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
1				0.289

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	8.53	0.455
2	5.35	0.253
3	2.56	0.073
4	2.38	0.063
5	1.72	0.031

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
2				0.72

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	6.95	0.359
2	6.03	0.297
3	3.23	0.112
4	3.15	0.107
5	2.29	0.058

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.

56 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
5GP	6YDP	Q96RP9	363.2 Da LogP -2.57 TPSA 206.0	1 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O…`
FUA	4V5F	Q5SHN5	516.7 Da LogP 5.67 TPSA 104.1	2 viol.	✓ Clean	`C[C@H]1[C@@H]2CC[C@]3([C@H]([C@]2(CC[C@H]1O)C)[…`
G4P	3VR1	B8DIL5	603.2 Da LogP -2.22 TPSA 345.6	3 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O…`
GCP	4V8O	B1XFI4	521.2 Da LogP -2.22 TPSA 289.9	3 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O…`
GNP	4V85	P0A7I4	522.2 Da LogP -2.76 TPSA 301.9	3 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O…`
SPM	6YDP	Q96RP9	202.3 Da LogP -0.36 TPSA 76.1	✓ Ro5	✓ Clean	`C(CCNCCCN)CNCCCN`

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
ZINC1532734	1.000	202.3 Da LogP -0.36 TPSA 76.1	✓ Ro5	✓ Clean	`NCCCNCCCCNCCCN`
ZINC27564039	0.867	202.3 Da LogP -0.36 TPSA 76.1	✓ Ro5	✓ Clean	`NCCCCNCCCNCCCN`
ZINC13377742	0.857	230.4 Da LogP 0.42 TPSA 76.1	✓ Ro5	✓ Clean	`NCCCCNCCCCNCCCCN`
ZINC104869865	0.850	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	0.850	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	0.850	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	0.850	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	0.850	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	0.850	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	0.850	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)(…`
ZINC1598087	0.800	215.4 Da LogP 1.61 TPSA 64.1	✓ Ro5	✓ Clean	`NCCCCCCNCCCCCCN`
ZINC12501413	0.783	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	0.783	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	0.783	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	0.783	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	0.783	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	0.783	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	0.783	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	0.783	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	0.783	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)[…`
ZINC100056474	0.684	270.5 Da LogP 4.63 TPSA 38.0	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCNCCCN`
ZINC59496006	0.684	242.5 Da LogP 3.85 TPSA 38.0	✓ Ro5	✓ Clean	`CCCCCCCCCCCCNCCCN`
ZINC71774763	0.681	432.3 Da LogP -2.23 TPSA 198.3	1 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2O[C@H](CO[P@](=O)(O)N3CCOCC3…`
ZINC4743771	0.662	361.3 Da LogP -2.70 TPSA 182.6	1 viol.	✓ Clean	`CS(=O)(=O)OC[C@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)nc…`
ZINC4743772	0.662	361.3 Da LogP -2.70 TPSA 182.6	1 viol.	✓ Clean	`CS(=O)(=O)OC[C@@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)n…`
ZINC4743774	0.662	361.3 Da LogP -2.70 TPSA 182.6	1 viol.	✓ Clean	`CS(=O)(=O)OC[C@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)nc…`
ZINC4743775	0.662	361.3 Da LogP -2.70 TPSA 182.6	1 viol.	✓ Clean	`CS(=O)(=O)OC[C@@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)n…`
ZINC12503703	0.647	427.2 Da LogP -1.42 TPSA 232.3	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@@H]2C[C@H](O)[C@@H](CO[P@@](=O)(…`
ZINC8215878	0.647	427.2 Da LogP -1.42 TPSA 232.3	2 viol.	✓ Clean	`Nc1nc2c(ncn2[C@H]2C[C@H](O)[C@@H](CO[P@@](=O)(O…`
ZINC100058967	0.642	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc(=O)c2ncn([C@H]3O[C@H](CO[P@](=O)(O)OP(=O)…`
ZINC12504287	0.642	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc(=O)c2ncn([C@@H]3O[C@@H](CO[P@@](=O)(O)OP(…`
ZINC12504288	0.642	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc(=O)c2ncn([C@H]3O[C@@H](CO[P@@](=O)(O)OP(=…`
ZINC31308647	0.642	443.2 Da LogP -2.45 TPSA 252.6	2 viol.	✓ Clean	`Nc1nc(=O)c2ncn([C@@H]3O[C@@H](CO[P@@](=O)(O)OP(…`
ZINC1674993	0.640	296.4 Da LogP 0.06 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@@H](CCSCCSCC[C@H](N)C(=O)O)C(=O)O`
ZINC1674994	0.640	296.4 Da LogP 0.06 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@@H](CCSCCSCC[C@@H](N)C(=O)O)C(=O)O`
ZINC1674996	0.640	296.4 Da LogP 0.06 TPSA 126.6	✓ Ro5	✓ Clean	`N[C@H](CCSCCSCC[C@@H](N)C(=O)O)C(=O)O`
ZINC1532637	0.639	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	0.639	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	0.639	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	0.639	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(…`
ZINC38580950	0.639	282.3 Da LogP -2.72 TPSA 165.3	✓ Ro5	✓ Clean	`NC[C@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)nc32)[C@H](O…`
ZINC3869967	0.639	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…`
ZINC3869969	0.639	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)…`
ZINC4990800	0.639	282.3 Da LogP -2.72 TPSA 165.3	✓ Ro5	✓ Clean	`NC[C@@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)nc32)[C@H](…`
ZINC4990801	0.639	282.3 Da LogP -2.72 TPSA 165.3	✓ Ro5	✓ Clean	`NC[C@@H]1O[C@H](n2cnc3c(=O)[nH]c(N)nc32)[C@@H](…`
ZINC4990802	0.639	282.3 Da LogP -2.72 TPSA 165.3	✓ Ro5	✓ Clean	`NC[C@@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)nc32)[C@@H]…`
ZINC6119283	0.639	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	0.639	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)…`
ZINC97973759	0.639	282.3 Da LogP -2.72 TPSA 165.3	✓ Ro5	✓ Clean	`NC[C@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)nc32)[C@H](O…`
ZINC97973760	0.639	282.3 Da LogP -2.72 TPSA 165.3	✓ Ro5	✓ Clean	`NC[C@H]1O[C@@H](n2cnc3c(=O)[nH]c(N)nc32)[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.