SAXSdb — 1led

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

WEST-CENTRAL AFRICAN LEGUME LECTIN IV

Griffonia simplicifolia

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Homooligomer	Protein 2 其他Polymer 4	;alpha-L-fucopyranose-(1-2)-beta-D-galactopyranose-(1-3)-[alpha-L-fucopyranose-(1-4)]methyl 2-acetamido-2-deoxy-beta-D-glucopyranoside ; × 2 alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)]2-acetamido-2-deoxy-beta-D-glucopyranose × 2 MANGANESE (II) ION × 2 CALCIUM ION × 2 SULFATE ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	LEC4_GRISI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–243； UniProt 2–243

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	1led
Deposition date deposition_date	1992-12-17
Structure title title	STRUCTURES OF THE LECTIN IV OF GRIFFONIA SIMPLICIFOLIA AND ITS COMPLEX WITH THE LEWIS B HUMAN BLOOD GROUP DETERMINANT AT 2.0 ANGSTROMS RESOLUTION
Keywords keywords	LECTIN; LECTIN
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.

1led__assembly_1__model_1

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

Download this curve (.dat)

1led__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1led__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.81 Å
Rg (electron density)	23.63 Å
Total Rg	24.61 Å
Atom count	3992
Residues	484
Excluded volume	70779 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1led__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 (7)

Entity 1 Entity 1 polymer

Description description	WEST-CENTRAL AFRICAN LEGUME LECTIN IV
Molecular weight formula_weight	26816.7 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2140

QNTVNFTYPDFWSYSLKNGTEITFLGDATRIPGALQLTKTDANGNPVRSSAGQASYSEPVFLWDSTGKAASFYTSFTFLLKNYGAPTADGLAFFLAPVDSSVKDYGGFLGLFRHETAADPSKNQVVAVEFDTWINKDWNDPPYPHIGIDVNSIVSVATTRWENDDAYGSSIATAHITYDARSKILTVLLSYEHGRDYILSHVVDLAKVLPQKVRIGFSAGVGYDEVTYILSWHFFSTLDGTNK

Source Source

Source organism organism	Griffonia simplicifolia
NCBI taxonomy ID ncbi_taxonomy_id	3850

Entity 2 Entity 2 branched

Description description	;alpha-L-fucopyranose-(1-2)-beta-D-galactopyranose-(1-3)-[alpha-L-fucopyranose-(1-4)]methyl 2-acetamido-2-deoxy-beta-D-glucopyranoside ;
Molecular weight formula_weight	689.7 kDa
Source method src_method	man
Copy count entity_count	1

Entity 3 Entity 3 branched

Description description	alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)]2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	570.5 kDa
Source method src_method	man
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	MANGANESE (II) ION
Molecular weight formula_weight	54.9 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 7 Entity 7 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	144

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1leda_
Class class	b — All beta proteins
Fold Fold fold	b.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamily	b.29.1 — Concanavalin A-like lectins/glucanases
Family Family family	b.29.1.1 — Legume lectins

CATH v4.4 (1 domains)

Domain ID domain_id	1ledA00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	200 —

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Unit-cell length a length_a	78.900 Å
Unit-cell length b length_b	78.900 Å
Unit-cell length c length_c	89.100 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 42 21 2
Space-group number int_tables_number	94
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	0.1810
R_work r_work	—
R_free r_free	—

STRUCTURES OF THE LECTIN IV OF GRIFFONIA SIMPLICIFOLIA AND ITS COMPLEX WITH THE LEWIS B HUMAN BLOOD GROUP DETERMINANT AT 2.0 ANGSTROMS RESOLUTION

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

WEST-CENTRAL AFRICAN LEGUME LECTIN IV

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

1led__assembly_1__model_1

1led__assembly_1__model_1 | I(q)

1led__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (3)

STRUCTURES OF THE LECTIN IV OF GRIFFONIA SIMPLICIFOLIA AND ITS COMPLEX WITH THE LEWIS B HUMAN BLOOD GROUP DETERMINANT AT 2.0 ANGSTROMS RESOLUTION

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

WEST-CENTRAL AFRICAN LEGUME LECTIN IV

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

1led__assembly_1__model_1

1led__assembly_1__model_1 | I(q)

1led__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (3)