Protein profile

VK055_0407

acetolactate synthase, catabolic

Genome: KpATCC43816

Gene: AIK79033.1 alsS Structure source: Experimental + ColabFold UniProt P27696
Amino acids 559
Annotations 10
Features 25
PDB binders 39
Druggability 0.958

Overview

Basic information about this protein and its source genome.

Accession
VK055_0407
Gene
AIK79033.1 alsS
Status
annotated
Amino acids
559
Structure source
Experimental + ColabFold

Target profile

Computed evidence for target prioritization.

Human off-target
hit
Human identity (%)
36.905
Human E-value
1.59e-10
Gut microbiome off-target
hit
Essential (DEG)
N
DEG identity (%)
29.705
Localization
Cytoplasmic
ColabFold pLDDT
96.25

Selected Druggability evidence

PDB experimental structure

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 0.958
Structure 1OZF
Pocket Pocket 3
P2Rank 0.534
Structure 1OZG
Pocket Pocket 1
ColabFold model
FPocket 0.508 · Pocket 18
P2Rank 0.392 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 90 / 4744 genomes with a hit
Normalized 0.019

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 9 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

9
  • 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:0003984 Catalysis of the reaction: H+ + 2 pyruvate = (2S)-2-acetolactate + CO2. Can also convert 2-oxobutanoate and pyruvate to (S)-2-ethyl-2-hydroxy-3-oxobutanoate.
  • GO:0030976 Binding to thiamine pyrophosphate, the diphosphoric ester of thiamine. Acts as a coenzyme of several (de)carboxylases, transketolases, and alpha-oxoacid dehydrogenases.
  • GO:0034077 The chemical reactions and pathways involving butanediol; the biologically relevant isomer is 2,3-butanediol, CH3CH(OH)CH(OH)CH3.
  • GO:0000287 Binding to a magnesium (Mg) ion.
  • GO:0005948 A dimeric (a large and a small chain) or tetrameric (two large and two small chains) enzyme complex. Catalyzes the formation of acetolactate from pyruvate.
  • GO:0050660 Binding to FAD, flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes, in either the oxidized form, FAD, or the reduced form, FADH2.
  • GO:0009097 OBSOLETE. The chemical reactions and pathways resulting in the formation of isoleucine, (2R*,3R*)-2-amino-3-methylpentanoic acid.
  • GO:0009099 The chemical reactions and pathways resulting in the formation of valine, 2-amino-3-methylbutanoic acid.

Sequence Features

Domain/signature hits from InterPro and related databases.

25 records
Show feature table
Start End DB Term Name
393 538 Pfam PF02775 Thiamine pyrophosphate enzyme, C-terminal TPP binding domain
393 538 InterPro IPR011766 Thiamine pyrophosphate enzyme, TPP-binding
191 338 Gene3D G3DSA:3.40.50.1220 -
1 188 Gene3D G3DSA:3.40.50.970 -
341 361 Gene3D G3DSA:1.20.5.740 Single helix bin
13 550 NCBIfam TIGR02418 acetolactate synthase AlsS
13 550 InterPro IPR012782 Acetolactate synthase, catabolic
6 188 FunFam G3DSA:3.40.50.970:FF:000007 Acetolactate synthase
362 559 Gene3D G3DSA:3.40.50.970 -
371 550 SUPERFAMILY SSF52518 Thiamin diphosphate-binding fold (THDP-binding)
371 550 InterPro IPR029061 Thiamin diphosphate-binding fold
15 169 CDD cd07035 TPP_PYR_POX_like
12 176 Pfam PF02776 Thiamine pyrophosphate enzyme, N-terminal TPP binding domain
12 176 InterPro IPR012001 Thiamine pyrophosphate enzyme, N-terminal TPP-binding domain
11 550 PANTHER PTHR18968 THIAMINE PYROPHOSPHATE ENZYMES
11 550 InterPro IPR045229 Thiamine pyrophosphate enzyme
190 360 SUPERFAMILY SSF52467 DHS-like NAD/FAD-binding domain
190 360 InterPro IPR029035 DHS-like NAD/FAD-binding domain superfamily
373 549 CDD cd02010 TPP_ALS
6 180 SUPERFAMILY SSF52518 Thiamin diphosphate-binding fold (THDP-binding)
6 180 InterPro IPR029061 Thiamin diphosphate-binding fold
197 331 Pfam PF00205 Thiamine pyrophosphate enzyme, central domain
197 331 InterPro IPR012000 Thiamine pyrophosphate enzyme, central domain
430 449 ProSitePatterns PS00187 Thiamine pyrophosphate enzymes signature.
430 449 InterPro IPR000399 TPP-binding enzyme, conserved site

3D Structure

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

3D visualization script Full viewer

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Structural evidence

6 + 1

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

Entry Method Resolution Chain Coverage Links Status
PDB 5DX6
X-ray 1.75 Å A,B
100.0% 1-559
Viewing
PDB 1OZH
X-ray 2.00 Å A,B,C,D
100.0% 1-559
Loaded
PDB 5WDG
X-ray 2.12 Å A,B
100.0% 1-559
Loaded
PDB 5D6R
X-ray 2.28 Å B,M
100.0% 1-559
Loaded
PDB 1OZF
X-ray 2.30 Å A,B
100.0% 1-559
Loaded
PDB 1OZG
X-ray 2.30 Å A,B
100.0% 1-559
Loaded
ColabFold VK055_0407
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
66 0.848
1 0.843
2 0.508

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 10.86 0.583
2 6.07 0.3
3 6.0 0.295
4 4.74 0.209
5 3.34 0.118

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.

126 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.

Show only:
Ligand Source crystal MW · LogP · TPSA Lipinski PAINS SMILES
5GY 487.4 Da LogP 0.84 TPSA 189.2 ✓ Ro5 ✓ Clean Cc1c(sc([n+]1Cc2cnc(nc2N)C)[C@@H](CF)O)CCOP(=O)…
65S 106.1 Da LogP -0.39 TPSA 54.4 ✓ Ro5 ✓ Clean C(C(=O)C(=O)O)F
A4Y 558.4 Da LogP 0.37 TPSA 232.1 3 viol. ✓ Clean Cc1ncc2c(n1)N[C@]3(N(C2)[C@H]([C@H](S3)CCOP(=O)…
EN0 565.3 Da LogP 1.17 TPSA 246.7 2 viol. ✓ Clean Cc1c(sc([n+]1Cc2cnc(nc2N)C)/C(=C(\F)/P(=O)(O)O)…
HE3 468.4 Da LogP 1.64 TPSA 174.6 ✓ Ro5 ✓ Clean Cc1ncc2c(n1)N[C@]3([N@@](C2)C(=C(S3)CCO[P@](=O)…
PYR 88.1 Da LogP -0.34 TPSA 54.4 ✓ Ro5 ✓ Clean CC(=O)C(=O)O

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.