SAXSdb — 1kuj

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

JACALIN ALPHA CHAIN

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	JACALIN BETA CHAIN × 4 （P18671） methyl alpha-D-mannopyranoside × 4 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	LECA_ARTIN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–133； UniProt 1–133 Author chain C； PDBConstruct 1–133； UniProt 1–133 Author chain E； PDBConstruct 1–133； UniProt 1–133 Author chain G； PDBConstruct 1–133； UniProt 1–133

JACALIN BETA CHAIN

OrganismNot specified

UniProt P18671

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	JACALIN ALPHA CHAIN × 4 （P18670） methyl alpha-D-mannopyranoside × 4 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	LEC1_ARTIN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–18； UniProt 61–78 Author chain D； PDBConstruct 1–18； UniProt 61–78 Author chain F； PDBConstruct 1–18； UniProt 61–78 Author chain H； PDBConstruct 1–18； UniProt 61–78

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	1kuj
Deposition date deposition_date	2002-01-22
Structure title title	Crystal structure of Jacalin complexed with 1-O-methyl-alpha-D-mannose
Keywords keywords	LECTIN, BETA-PRISM FOLD, CARBOHYDRATE BINDING, SUGAR BINDING PROTEIN; SUGAR BINDING PROTEIN
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.

1kuj__assembly_1__model_1

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

Download this curve (.dat)

1kuj__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1kuj__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.52 Å
Rg (electron density)	26.62 Å
Total Rg	27.37 Å
Atom count	4649
Residues	594
Excluded volume	83350 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1kuj__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 (4)

Entity 1 Entity 1 polymer

Description description	JACALIN ALPHA CHAIN
Molecular weight formula_weight	14673.5 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C,E,G
Atom count atom_count	4954

GKAFDDGAFTGIREINLSYNKETAIGDFQVVYDLNGSPYVGQNHKSFITGFTPVKISLDFPSEYIMEVSGYTGNVSGYVVVRSLTFKTNKKTYGPYGVTSGTPFNLPIENGLIVGFKGSIGYWLDYFSMYLSL

Entity 2 Entity 2 polymer

Description description	JACALIN BETA CHAIN
Molecular weight formula_weight	1872.1 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D,F,H

NEQSGISQTVIVGPWGAK

Entity 3 Entity 3 non-polymer

Description description	methyl alpha-D-mannopyranoside
Molecular weight formula_weight	194.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	305

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1kuj.1
Class class	b — All beta proteins
Fold Fold fold	b.77 — beta-Prism I
Superfamily Superfamily superfamily	b.77.3 — Mannose-binding lectins
Family Family family	b.77.3.1 — Mannose-binding lectins

Domain ID domain_id	d1kuj.2
Class class	b — All beta proteins
Fold Fold fold	b.77 — beta-Prism I
Superfamily Superfamily superfamily	b.77.3 — Mannose-binding lectins
Family Family family	b.77.3.1 — Mannose-binding lectins

Domain ID domain_id	d1kuj.3
Class class	b — All beta proteins
Fold Fold fold	b.77 — beta-Prism I
Superfamily Superfamily superfamily	b.77.3 — Mannose-binding lectins
Family Family family	b.77.3.1 — Mannose-binding lectins

Domain ID domain_id	d1kuj.4
Class class	b — All beta proteins
Fold Fold fold	b.77 — beta-Prism I
Superfamily Superfamily superfamily	b.77.3 — Mannose-binding lectins
Family Family family	b.77.3.1 — Mannose-binding lectins

CATH v4.4 (4 domains)

Domain ID domain_id	1kujA00
Class class	2 — Mainly Beta
Architecture architecture	100 — Aligned Prism
Topology topology	10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily	30 — Jacalin-like lectin domain

Domain ID domain_id	1kujC00
Class class	2 — Mainly Beta
Architecture architecture	100 — Aligned Prism
Topology topology	10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily	30 — Jacalin-like lectin domain

Domain ID domain_id	1kujE00
Class class	2 — Mainly Beta
Architecture architecture	100 — Aligned Prism
Topology topology	10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily	30 — Jacalin-like lectin domain

Domain ID domain_id	1kujG00
Class class	2 — Mainly Beta
Architecture architecture	100 — Aligned Prism
Topology topology	10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily	30 — Jacalin-like lectin domain

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Unit-cell length a length_a	58.795 Å
Unit-cell length b length_b	82.612 Å
Unit-cell length c length_c	63.482 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	106.80 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	19.940 Å
R factor r_factor	0.1910
R_work r_work	0.1910
R_free r_free	0.2350

Crystal structure of Jacalin complexed with 1-O-methyl-alpha-D-mannose

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

JACALIN ALPHA CHAIN

State in the Current Structure

Other States of the Same Protein in the Database

JACALIN BETA CHAIN

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

1kuj__assembly_1__model_1

1kuj__assembly_1__model_1 | I(q)

1kuj__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

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of Jacalin complexed with 1-O-methyl-alpha-D-mannose

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

JACALIN ALPHA CHAIN

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

JACALIN BETA CHAIN

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

1kuj__assembly_1__model_1

1kuj__assembly_1__model_1 | I(q)

1kuj__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

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)