Protein profile

KP13_00953

Capsular synthesis regulator component B

Genome: KpKP13

Gene: AHE43519.1 rcsB Structure source: AlphaFold + ColabFold UniProt A0A0H3GVM1

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Amino acids 213

Annotations 3

Features 33

PDB binders 2

Druggability 0.409

Overview

Basic information about this protein and its source genome.

Accession: KP13_00953
Assembly: Klebsiella pneumoniae subsp. pneumoniae Kp13, complete sequence
Gene: AHE43519.1 rcsB
Status: annotated
Amino acids: 213
Structure source: AlphaFold + ColabFold

GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription. GO:0000160 A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins. GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
Human identity (%): 0.0
Gut microbiome off-target: hit
Essential (DEG): Y
DEG identity (%): 98.122
DEG E-value: 2.64e-151
Localization: Cytoplasmic
ColabFold pLDDT: 88.84

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 0.409

Structure A0A0H3GVM1

Pocket Pocket 1

P2Rank 0.21

Structure A0A0H3GVM1

Pocket Pocket 1

ColabFold model

FPocket 0.354 · Pocket 2

P2Rank 0.19 · Pocket 1

Core conservation Conserved core gene

Roary core

CoreCruncher core

Gut microbiome 109 / 4744 genomes with a hit

Normalized 0.023

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Gene Ontology (GO)

GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
GO:0000160 A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins.
GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).

Sequence Features

Domain/signature hits from InterPro and related databases.

33 records

Show feature table

Start	End	DB	Term	Name
1	205	PANTHER	PTHR45566	HTH-TYPE TRANSCRIPTIONAL REGULATOR YHJB-RELATED
145	202	SMART	SM00421	luxrmega5
145	202	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
162	178	PRINTS	PR00038	LuxR bacterial regulatory protein HTH signature
162	178	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
178	190	PRINTS	PR00038	LuxR bacterial regulatory protein HTH signature
178	190	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
148	162	PRINTS	PR00038	LuxR bacterial regulatory protein HTH signature
148	162	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
2	121	ProSiteProfiles	PS50110	Response regulatory domain profile.
2	121	InterPro	IPR001789	Signal transduction response regulator, receiver domain
145	204	FunFam	G3DSA:1.10.10.10:FF:000072	Transcriptional regulatory protein RcsB
145	204	Gene3D	G3DSA:1.10.10.10	-
145	204	InterPro	IPR036388	Winged helix-like DNA-binding domain superfamily
1	144	Gene3D	G3DSA:3.40.50.2300	-
162	189	ProSitePatterns	PS00622	LuxR-type HTH domain signature.
162	189	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
1	117	SMART	SM00448	REC_2
1	117	InterPro	IPR001789	Signal transduction response regulator, receiver domain
1	144	FunFam	G3DSA:3.40.50.2300:FF:000023	Transcriptional regulatory protein RcsB
141	206	ProSiteProfiles	PS50043	LuxR-type HTH domain profile.
141	206	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
139	204	SUPERFAMILY	SSF46894	C-terminal effector domain of the bipartite response regulators
139	204	InterPro	IPR016032	Signal transduction response regulator, C-terminal effector
3	119	CDD	cd17535	REC_NarL-like
148	198	Pfam	PF00196	Bacterial regulatory proteins, luxR family
148	198	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
148	201	CDD	cd06170	LuxR_C_like
148	201	InterPro	IPR000792	Transcription regulator LuxR, C-terminal
3	117	Pfam	PF00072	Response regulator receiver domain
3	117	InterPro	IPR001789	Signal transduction response regulator, receiver domain
1	132	SUPERFAMILY	SSF52172	CheY-like
1	132	InterPro	IPR011006	CheY-like superfamily

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_A0A0H3GVM1	AlphaFold	—	—	full sequence	—	Viewing
ColabFold KP13_00953	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				0.409

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	Sticks	Spheres	Surfaces	Score	Probability	Labels	Zoom	Positions
1				4.32	0.179

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				0.354
1				0.344

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	2.92	0.094
2	1.75	0.032
3	0.67	0.001

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.

52 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
BEF	5O8Z	P58663	66.0 Da LogP 0.88 TPSA 0.0	✓ Ro5	✓ Clean	`[Be-](F)(F)F`
PE4	5O8Y	P58663	354.4 Da LogP 0.11 TPSA 84.8	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCOCCOCCOCCO`

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
ZINC5650743	1.000	222.3 Da LogP 0.07 TPSA 57.2	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCO`
ZINC6403917	1.000	354.4 Da LogP 0.11 TPSA 84.8	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCOCCOCCOCCO`
ZINC12501520	0.688	458.5 Da LogP -0.88 TPSA 123.5	1 viol.	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC3874716	0.688	414.5 Da LogP -0.90 TPSA 114.3	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC4283769	0.688	238.3 Da LogP -0.96 TPSA 77.4	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCO`
ZINC4521548	0.688	282.3 Da LogP -0.95 TPSA 86.6	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCO`
ZINC5178829	0.688	326.4 Da LogP -0.93 TPSA 95.8	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCO`
ZINC5178830	0.688	370.4 Da LogP -0.91 TPSA 105.1	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC5859031	0.688	294.4 Da LogP 1.13 TPSA 55.4	✓ Ro5	✓ Clean	`CCOCCOCCOCCOCCOCCOCC`
ZINC1644613	0.619	206.3 Da LogP 0.83 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCOCCOCCOCCO`
ZINC1580161	0.600	208.3 Da LogP -0.33 TPSA 57.2	✓ Ro5	✓ Clean	`COCCOCCOCCOCCO`
ZINC16052118	0.600	340.4 Da LogP -0.28 TPSA 84.8	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCO`
ZINC16052257	0.600	384.5 Da LogP -0.26 TPSA 94.1	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC34317654	0.600	472.6 Da LogP -0.23 TPSA 112.5	1 viol.	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC44076059	0.600	428.5 Da LogP -0.24 TPSA 103.3	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC5210101	0.600	252.3 Da LogP -0.31 TPSA 66.4	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCO`
ZINC5997860	0.600	296.4 Da LogP -0.29 TPSA 75.6	✓ Ro5	✓ Clean	`COCCOCCOCCOCCOCCOCCO`
ZINC2555269	0.591	220.3 Da LogP 1.22 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCOCCOCCOCCO`
ZINC4974293	0.579	280.4 Da LogP 1.08 TPSA 55.4	✓ Ro5	✓ Clean	`CCOCCOCCOCOCCOCCOCC`
ZINC100014200	0.565	494.7 Da LogP 4.02 TPSA 84.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC100070166	0.565	290.4 Da LogP 3.17 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCO`
ZINC100310628	0.565	478.7 Da LogP 4.78 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC100365196	0.565	302.5 Da LogP 4.71 TPSA 38.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCO`
ZINC101772322	0.565	434.7 Da LogP 4.76 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC103600921	0.565	466.7 Da LogP 3.24 TPSA 84.8	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC14880431	0.565	378.6 Da LogP 3.20 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC14881140	0.565	306.4 Da LogP 2.41 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCOCCOCCO`
ZINC16051619	0.565	350.5 Da LogP 2.42 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCOCCOCCOCCO`
ZINC2584424	0.565	218.3 Da LogP 2.37 TPSA 38.7	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCO`
ZINC4521877	0.565	234.3 Da LogP 1.61 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCOCCOCCOCCO`
ZINC5273610	0.565	322.4 Da LogP 1.64 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCOCCOCCOCCOCCOCCO`
ZINC58538366	0.565	392.6 Da LogP 3.59 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC58631420	0.565	422.6 Da LogP 3.22 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC59441819	0.565	318.5 Da LogP 3.95 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCO`
ZINC59622400	0.565	274.4 Da LogP 3.93 TPSA 38.7	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCO`
ZINC71788551	0.565	334.5 Da LogP 3.19 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCCCOCCOCCOCCOCCO`
ZINC71788564	0.565	262.4 Da LogP 2.39 TPSA 47.9	✓ Ro5	✓ Clean	`CCCCCCCCOCCOCCOCCO`
ZINC71788567	0.565	406.6 Da LogP 3.98 TPSA 66.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCOCCO`
ZINC8214594	0.565	362.6 Da LogP 3.97 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCO`
ZINC88260008	0.565	390.6 Da LogP 4.75 TPSA 57.2	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCOCCOCCOCCOCCO`
ZINC95784968	0.565	450.7 Da LogP 4.00 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC95863931	0.565	464.7 Da LogP 4.39 TPSA 75.6	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCOCCOCCOCCOCCOCCOCCO`
ZINC116078620	0.538	236.3 Da LogP -0.41 TPSA 74.2	✓ Ro5	✓ Clean	`CCOC(=O)COCCOCCOCCO`
ZINC83253955	0.538	206.2 Da LogP -0.03 TPSA 65.0	✓ Ro5	✓ Clean	`CCOC(=O)CCOCCOCCO`
ZINC137432264	0.524	457.6 Da LogP -0.91 TPSA 129.3	1 viol.	✓ Clean	`NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC146143823	0.524	237.3 Da LogP -1.00 TPSA 83.2	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCO`
ZINC1542984442	0.524	413.5 Da LogP -0.93 TPSA 120.1	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCOCCOCCOCCOCCO`
ZINC1857792028	0.524	430.6 Da LogP 0.04 TPSA 94.1	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCOCCS`
ZINC230494776	0.524	325.4 Da LogP -0.96 TPSA 101.6	✓ Ro5	✓ Clean	`NCCOCCOCCOCCOCCOCCOCCO`
ZINC90741446	0.524	386.5 Da LogP 0.02 TPSA 84.8	✓ Ro5	✓ Clean	`OCCOCCOCCOCCOCCOCCOCCOCCS`

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.