SAXSdb — 4lke

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1. Protein Identity and Related Structures Protein Identity & Related Structures

PA-I galactophilic lectin

Pseudomonas aeruginosa

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	peptide WRIA × 4 beta-D-galactopyranose × 4 CALCIUM ION × 4 P-HYDROXYBENZOIC ACID × 4 water × 7	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PA1L_PSEAE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–121； UniProt 2–122 Author chain B； PDBConstruct 1–121； UniProt 2–122 Author chain C； PDBConstruct 1–121； UniProt 2–122 Author chain D； PDBConstruct 1–121； UniProt 2–122

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	4lke
Deposition date deposition_date	2013-07-07
Structure title title	Crystal Structure of Pseudomonas aeruginosa Lectin LecA Complexed with GalA-WRI at 1.65 A Resolution
Keywords keywords	Lectin Fold, Galactose, SUGAR BINDING PROTEIN-INHIBITOR complex; SUGAR BINDING PROTEIN/INHIBITOR
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

4lke__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4lke__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4lke__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	28.97 Å
Rg (electron density)	28.26 Å
Total Rg	28.67 Å
Atom count	3775
Residues	495
Excluded volume	66461 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4lke__assembly_1__model_1`	octameric （8）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Description description	PA-I galactophilic lectin
Molecular weight formula_weight	12770.1 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	4477

AWKGEVLANNEAGQVTSIIYNPGDVITIVAAGWASYGPTQKWGPQGDREHPDQGLICHDAFCGALVMKIGNSGTIPVNTGLFRWVAPNNVQGAITLIYNDVPGTYGNNSGSFSVNIGKDQS

Source Source

Source organism organism	Pseudomonas aeruginosa
NCBI taxonomy ID ncbi_taxonomy_id	208964
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	peptide WRIA
Molecular weight formula_weight	545.7 kDa
Source method src_method	syn
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E,H,F,G

WRIA

Entity 3 Entity 3 non-polymer

Description description	beta-D-galactopyranose
Molecular weight formula_weight	180.2 kDa
Source method src_method	man
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 non-polymer

Description description	P-HYDROXYBENZOIC ACID
Molecular weight formula_weight	138.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	702

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	4lkeA00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	430 — Galactose-binding lectin

Domain ID domain_id	4lkeB00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	430 — Galactose-binding lectin

Domain ID domain_id	4lkeC00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	430 — Galactose-binding lectin

Domain ID domain_id	4lkeD00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	430 — Galactose-binding lectin

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Unit-cell length a length_a	60.524 Å
Unit-cell length b length_b	64.427 Å
Unit-cell length c length_c	155.462 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.653 Å
Low-resolution limit resolution_low	44.110 Å
R factor r_factor	0.2051
R_work r_work	0.2041
R_free r_free	0.2230

Crystal Structure of Pseudomonas aeruginosa Lectin LecA Complexed with GalA-WRI at 1.65 A Resolution

1. Protein Identity and Related Structures Protein Identity & Related Structures

PA-I galactophilic lectin

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

4lke__assembly_1__model_1

4lke__assembly_1__model_1 | I(q)

4lke__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Crystal Structure of Pseudomonas aeruginosa Lectin LecA Complexed with GalA-WRI at 1.65 A Resolution

1. Protein Identity and Related Structures Protein Identity & Related Structures

PA-I galactophilic lectin

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

4lke__assembly_1__model_1

4lke__assembly_1__model_1 | I(q)

4lke__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)