SAXSdb — 3zyh

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

PA-I galactophilic lectin

Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	CALCIUM ION × 2 3-(beta-D-galactopyranosylthio)propanoic acid × 2 water × 2	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 1–122； UniProt 1–122 Author chain B； PDBConstruct 1–122； UniProt 1–122

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	3zyh
Deposition date deposition_date	2011-08-23
Structure title title	CRYSTAL STRUCTURE OF PA-IL LECTIN COMPLEXED WITH GALBG0 AT 1.5 A RESOLUTION
Keywords keywords	SUGAR BINDING PROTEIN-INHIBITOR COMPLEX, ADHESIN, GLYCOSPHINGOLIPID-ANTIGEN, GALACTOSE-SPECIFIC, GALACTOSIDES; 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.

3zyh__assembly_1__model_1

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

Download this curve (.dat)

3zyh__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3zyh__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.09 Å
Rg (electron density)	17.94 Å
Total Rg	18.87 Å
Atom count	1844
Residues	242
Excluded volume	32286 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3zyh__assembly_1__model_1`	dimeric （2）	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 (4)

Entity 1 Entity 1 polymer

Description description	PA-I galactophilic lectin
Molecular weight formula_weight	12901.3 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2514

MAWKGEVLANNEAGQVTSIIYNPGDVITIVAAGWASYGPTQKWGPQGDREHPDQGLICHDAFCGALVMKIGNSGTIPVNTGLFRWVAPNNVQGAITLIYNDVPGTYGNNSGSFSVNIGKDQS

Source Source

Source organism organism	Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
NCBI taxonomy ID ncbi_taxonomy_id	208964
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	3-(beta-D-galactopyranosylthio)propanoic acid
Molecular weight formula_weight	268.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	646

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d3zyha_
Class class	b — All beta proteins
Fold Fold fold	b.18 — Galactose-binding domain-like
Superfamily Superfamily superfamily	b.18.1 — Galactose-binding domain-like
Family Family family	b.18.1.16 — PA-IL, galactose-binding lectin 1

Domain ID domain_id	d3zyhb_
Class class	b — All beta proteins
Fold Fold fold	b.18 — Galactose-binding domain-like
Superfamily Superfamily superfamily	b.18.1 — Galactose-binding domain-like
Family Family family	b.18.1.16 — PA-IL, galactose-binding lectin 1

CATH v4.4 (2 domains)

Domain ID domain_id	3zyhA00
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	3zyhB00
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	40.559 Å
Unit-cell length b length_b	72.865 Å
Unit-cell length c length_c	133.723 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	8

Space group space_group	P 2 21 21
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	1.501 Å
Low-resolution limit resolution_low	49.264 Å
R factor r_factor	0.1863
R_work r_work	0.1855
R_free r_free	0.2015

CRYSTAL STRUCTURE OF PA-IL LECTIN COMPLEXED WITH GALBG0 AT 1.5 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

3zyh__assembly_1__model_1

3zyh__assembly_1__model_1 | I(q)

3zyh__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF PA-IL LECTIN COMPLEXED WITH GALBG0 AT 1.5 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

3zyh__assembly_1__model_1

3zyh__assembly_1__model_1 | I(q)

3zyh__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)