2x3t

Glutaraldehyde-crosslinked wheat germ agglutinin isolectin 1 crystal soaked with a synthetic glycopeptide

Method: X-RAY DIFFRACTION

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

AGGLUTININ ISOLECTIN 1

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 3	GLYCOPEPTIDE × 1 2-acetamido-1-O-carbamoyl-2-deoxy-alpha-D-glucopyranose × 5 D-ALPHA-AMINOBUTYRIC ACID × 3 GLYCEROL × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 3	GLYCOPEPTIDE × 1 2-acetamido-1-O-carbamoyl-2-deoxy-alpha-D-glucopyranose × 6 D-ALPHA-AMINOBUTYRIC ACID × 4 GLYCEROL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	AGI1_WHEAT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–171； UniProt 27–197 Author chain B； PDBConstruct 1–171； UniProt 27–197 Author chain C； PDBConstruct 1–171； UniProt 27–197 Author chain D； PDBConstruct 1–171； UniProt 27–197

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	2x3t
Deposition date deposition_date	2010-01-26
Structure title title	Glutaraldehyde-crosslinked wheat germ agglutinin isolectin 1 crystal soaked with a synthetic glycopeptide
Keywords keywords	SUGAR BINDING PROTEIN-PEPTIDE COMPLEX, CHITIN-BINDING; SUGAR BINDING PROTEIN/PEPTIDE
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.

2x3t__assembly_1__model_1

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

Download this curve (.dat)

2x3t__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2x3t__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.70 Å
Rg (electron density)	20.14 Å
Total Rg	20.68 Å
Atom count	2376
Residues	336
Excluded volume	40364 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2x3t__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2x3t__assembly_2__model_1`	trimeric （3）	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	AGGLUTININ ISOLECTIN 1
Molecular weight formula_weight	17124.1 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	4820

QRCGEQGSNMECPNNLCCSQYGYCGMGGDYCGKGCQNGACWTSKRCGSQAGGATCTNNQCCSQYGYCGFGAEYCGAGCQGGPCRADIKCGSQAGGKLCPNNLCCSQWGFCGLGSEFCGGGCQSGACSTDKPCGKDAGGRVCTNNYCCSKWGSCGIGPGYCGAGCQSGGCDG

Entity 2 Entity 2 polymer

Description description	GLYCOPEPTIDE
Molecular weight formula_weight	886.1 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E,M

KXVXXVXEX

Entity 3 Entity 3 non-polymer

Description description	2-acetamido-1-O-carbamoyl-2-deoxy-alpha-D-glucopyranose
Molecular weight formula_weight	264.2 kDa
Source method src_method	man
Copy count entity_count	11

Entity 4 Entity 4 non-polymer

Description description	D-ALPHA-AMINOBUTYRIC ACID
Molecular weight formula_weight	103.1 kDa
Source method src_method	syn
Copy count entity_count	7

Entity 5 Entity 5 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	38

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6. Fold Classification (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

Domain ID domain_id	d2x3ta1
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3ta2
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3ta3
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3ta4
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tb1
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tb2
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tb3
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tb4
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tc1
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tc2
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tc3
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3tc4
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3td1
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3td2
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3td3
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

Domain ID domain_id	d2x3td4
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.1 — Plant lectins/antimicrobial peptides
Family Family family	g.3.1.1 — Hevein-like agglutinin (lectin) domain

CATH v4.4 (16 domains)

Domain ID domain_id	2x3tA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tA04
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tB04
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tC01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tC02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tC03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tC04
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tD01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tD02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tD03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

Domain ID domain_id	2x3tD04
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	60 — Wheat Germ Agglutinin (Isolectin 2); domain 1
Homologous superfamily homologous superfamily	10 — Endochitinase-like

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Unit-cell length a length_a	44.640 Å
Unit-cell length b length_b	93.210 Å
Unit-cell length c length_c	92.500 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	98.32 °
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	2.749 Å
Low-resolution limit resolution_low	32.653 Å
R factor r_factor	0.2315
R_work r_work	0.2285
R_free r_free	0.2847

Glutaraldehyde-crosslinked wheat germ agglutinin isolectin 1 crystal soaked with a synthetic glycopeptide

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

AGGLUTININ ISOLECTIN 1

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

2x3t__assembly_1__model_1

2x3t__assembly_1__model_1 | I(q)

2x3t__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

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) 32 domains

SCOP 2.08 (16 domains)

CATH v4.4 (16 domains)

7. Citations (1)

Glutaraldehyde-crosslinked wheat germ agglutinin isolectin 1 crystal soaked with a synthetic glycopeptide

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

AGGLUTININ ISOLECTIN 1

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

2x3t__assembly_1__model_1

2x3t__assembly_1__model_1 | I(q)

2x3t__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

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) 32 domains

SCOP 2.08 (16 domains)

CATH v4.4 (16 domains)

7. Citations (1)