Protein target profile

PA3551

bifunctional mannose-1-phosphate guanylyltransferase/mannose-6-phosphate isomerase

Genome: NC_002516.2

Gene: algA PA3551 pmi 3D evidence: AlphaFold DB model UniProt P07874

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Length 481

Pocket druggability 0.71

Ligand records 51

EC / GO 0 / 9

Target summary

Promising target candidate with multiple supporting evidence streams.

5 signals

Strengths

Risks / watch

No major risk signal surfaced in the loaded evidence.

Missing evidence

No metabolic context No SBML/network-derived reaction evidence is loaded for this protein.

How to read this page

PDB: experimentally determined structures from the Protein Data Bank. These are the strongest structural evidence, but may cover only part of the protein.

AlphaFold DB model: a precomputed predicted structure downloaded from AlphaFold Database/UniProt, not an experiment performed here.

ColabFold model: a predicted structure generated for this workspace; interpret it with coverage and confidence.

pLDDT: confidence score for predicted structures. High values support local geometry; low values mean the region should not drive pocket interpretation.

FPocket / P2Rank: software tools that predict possible ligand-binding pockets on a 3D structure. They are useful screening signals, not experimental validation.

Druggability: a pocket-based estimate of whether a small molecule could bind productively. It does not mean a drug already exists.

PDB ligand: a compound observed in an experimental structure. Direct same-protein records are stronger than homolog-transferred records.

ChEMBL: a public database of measured compound bioactivity. Direct entries are stronger than entries transferred from similar proteins.

ZINC: a purchasable-compound database. Here it marks proposed candidates from chemical similarity, not measured binders.

LigQ / LigQ_2: an internal TPW pipeline step that gathers PDB, ChEMBL, and ZINC ligand evidence for each protein.

Off-target: sequence similarity to proteins we prefer not to hit, such as human proteins or beneficial gut microbiome proteins.

DEG: Database of Essential Genes. A match suggests the protein resembles genes known to be essential in other organisms.

Roary / CoreCruncher: pan-genome tools used to decide whether a gene is core across analyzed strains or accessory/strain-specific.

EC / GO: functional annotations: EC describes enzyme reactions; GO describes biological process, molecular function, or cellular component.

KEGG pathway: a curated metabolic route label used here to group reactions imported from the metabolic model.

Chokepoint: a metabolic reaction that is the only producer or consumer of a metabolite in the imported model.

Overview

Basic information about this protein and its source genome.

Accession: PA3551
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: algA PA3551 pmi
Status: annotated
Amino acids: 481
3D evidence: AlphaFold DB model

GO:0005525 Binding to GTP, guanosine triphosphate. GO:0004475 Catalysis of the reaction: alpha-D-mannose 1-phosphate + GTP = diphosphate + GDP-alpha-D-mannose. GO:0004476 Catalysis of the reaction: D-mannose 6-phosphate = D-fructose 6-phosphate. GO:0042121 The chemical reactions and pathways resulting in the formation of alginic acid, a hydrophilic polysaccharide occurring in, for example, the cell walls of brown algae (brown seaweeds). GO:0009298 The chemical reactions and pathways resulting in the formation of GDP-mannose, a substance composed of mannose in glycosidic linkage with guanosine diphosphate. GO:0000271 The chemical reactions and pathways resulting in the formation of a polysaccharide, a polymer of many (typically more than 10) monosaccharide residues linked glycosidically.

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
Gut microbiome off-target: hit
Essential (DEG): Y
Localization: Cytoplasmic

Selected pocket evidence

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.71

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

MIPVILSGGSGSRLWPLSRKQYPKQFLALTGDDTLFQQTIKRLAFDGMQAPLLVCNKEHRFIVQEQLEAQNLASQAILLEPFGRNTAPAVAIAAMKLVAEGRDELLLILPADHVIEDQRAFQQALALATNAAEKGEMVLFGIPASRPETGYGYIRASADAQLPEGVSRVQSFVEKPDEARAREFVAAGGYYWNSGMFLFRASRYLEELKKHDADIYDTCLLALERSQHDGDLVNIDAATFECCPDNSIDYAVMEKTSRACVVPLSAGWNDVGSWSSIWDVHAKDANGNVTKGDVLVHDSHNCLVHGNGKLVSVIGLEDIVVVETKDAMMIAHKDRVQDVKHVVKDLDAQGRSETQNHCEVYRPWGSYDSVDMGGRFQVKHITVKPGARLSLQMHHHRAEHWIVVSGTAQVTCDDKTFLLTENQSTYIPIASVHRLANPGKIPLEIIEVQSGSYLGEDDIERLEDVYGRTAEPALQVVAGSR

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

9 GO

Gene Ontology (GO)

GO:0005525 Binding to GTP, guanosine triphosphate.
GO:0004475 Catalysis of the reaction: alpha-D-mannose 1-phosphate + GTP = diphosphate + GDP-alpha-D-mannose.
GO:0004476 Catalysis of the reaction: D-mannose 6-phosphate = D-fructose 6-phosphate.
GO:0042121 The chemical reactions and pathways resulting in the formation of alginic acid, a hydrophilic polysaccharide occurring in, for example, the cell walls of brown algae (brown seaweeds).
GO:0009298 The chemical reactions and pathways resulting in the formation of GDP-mannose, a substance composed of mannose in glycosidic linkage with guanosine diphosphate.
GO:0000271 The chemical reactions and pathways resulting in the formation of a polysaccharide, a polymer of many (typically more than 10) monosaccharide residues linked glycosidically.
GO:0016779 Catalysis of the transfer of a nucleotidyl group from one compound (donor) to another (acceptor).
GO:0005976 The chemical reactions and pathways involving a polysaccharide, a polymer of many (typically more than 10) monosaccharide residues linked glycosidically.
GO:0009058 A cellular process consisting of the biochemical pathways by which a living organism synthesizes chemical substances. This typically represents the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.

Sequence Features

Domain/signature hits from InterPro and related databases.

19 records

Show feature table

Start	End	DB	Term	Name
1	345	Gene3D	G3DSA:3.90.550.10	Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A
1	345	InterPro	IPR029044	Nucleotide-diphospho-sugar transferases
346	463	FunFam	G3DSA:2.60.120.10:FF:000032	Mannose-1-phosphate guanylyltransferase/mannose-6-phosphate isomerase
346	454	Gene3D	G3DSA:2.60.120.10	Jelly Rolls
346	454	InterPro	IPR014710	RmlC-like jelly roll fold
3	286	Pfam	PF00483	Nucleotidyl transferase
3	286	InterPro	IPR005835	Nucleotidyl transferase domain
335	462	CDD	cd02213	cupin_PMI_typeII_C
2	463	PANTHER	PTHR46390	MANNOSE-1-PHOSPHATE GUANYLYLTRANSFERASE
1	277	CDD	cd02509	GDP-M1P_Guanylyltransferase
1	349	FunFam	G3DSA:3.90.550.10:FF:000046	Mannose-1-phosphate guanylyltransferase (GDP)
1	468	NCBIfam	TIGR01479	mannose-1-phosphate guanylyltransferase/mannose-6-phosphate isomerase
1	468	InterPro	IPR006375	Mannose-1-phosphate guanylyltransferase/mannose-6-phosphate isomerase
314	464	Pfam	PF01050	Mannose-6-phosphate isomerase
314	464	InterPro	IPR001538	Mannose-6-phosphate isomerase, type II, C-terminal
184	469	SUPERFAMILY	SSF51182	RmlC-like cupins
184	469	InterPro	IPR011051	RmlC-like cupin domain superfamily
1	281	SUPERFAMILY	SSF53448	Nucleotide-diphospho-sugar transferases
1	281	InterPro	IPR029044	Nucleotide-diphospho-sugar transferases

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; AlphaFold DB and ColabFold models typically cover the full protein but remain computational predictions.

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Structural evidence

0 + 1

Experimental PDB entries plus predicted AlphaFold DB or ColabFold models. Click Switch to display a different loaded structure in the viewer.

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold DB PA3551	AlphaFold DB	—	—	full sequence	—	Viewing

Pocket details Inspect a specific pocket, or open the full viewer

Binding pockets · FPocket

Druggability: high ≥ 0.7 · medium 0.4–0.69 · low < 0.4

Site 1 FPocket #8

0.71

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Site 2 FPocket #1

0.425

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Site 3 FPocket #3

0.306

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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

Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 51 via homologs

Structural ligands 1 0 loaded crystals

Bioactive compounds 0 50 ZINC proposed compounds

Drug-like & clean 19 0 PAINS alerts

Best available ligand signal

GDD PDB via homolog 605.3 Da · LogP -4.63 · TPSA 331.7 Open detail RCSB PDB

Detail RCSB PDB GDD PDB via homolog

Detail ZINC ZINC104869865 ZINC proposed compound · Tanimoto 0.761

Detail ZINC ZINC12504289 ZINC proposed compound · Tanimoto 0.761

Detail ZINC ZINC34541308 ZINC proposed compound · Tanimoto 0.761

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
GDD RCSB PDB	2X5Z	Q9X0C3	605.3 Da LogP -4.63 TPSA 331.7	3 viol.	✓ Clean	`c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=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
ZINC104869865 ZINC	0.761	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 ZINC	0.761	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 ZINC	0.761	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 ZINC	0.761	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 ZINC	0.761	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 ZINC	0.761	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 ZINC	0.761	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.701	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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 ZINC	0.672	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…`
ZINC100727895 ZINC	0.662	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 ZINC	0.662	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(…`
ZINC12501360 ZINC	0.648	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…`
ZINC12503440 ZINC	0.634	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 ZINC	0.634	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 ZINC	0.634	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 ZINC	0.634	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 ZINC	0.634	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 ZINC	0.634	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 ZINC	0.634	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…`
ZINC71774763 ZINC	0.618	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 ZINC	0.597	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 ZINC	0.597	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 ZINC	0.597	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 ZINC	0.597	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…`
ZINC106042635 ZINC	0.595	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(=…`
ZINC230402607 ZINC	0.595	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(…`
ZINC230402611 ZINC	0.595	341.3 Da LogP -2.02 TPSA 157.7	✓ Ro5	✓ Clean	`COCCO[C@@H]1[C@@H](n2cnc3c(=O)[nH]c(N)nc32)O[C@…`
ZINC2583384 ZINC	0.595	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…`
ZINC85475068 ZINC	0.595	341.3 Da LogP -2.02 TPSA 157.7	✓ Ro5	✓ Clean	`COCCO[C@H]1[C@@H](n2cnc3c(=O)[nH]c(N)nc32)O[C@H…`
ZINC90556174 ZINC	0.595	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.