SAXSdb — 1tl2

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

PROTEIN (TACHYLECTIN-2)

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	2-acetamido-2-deoxy-alpha-D-glucopyranose × 5 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TAL2_TACTR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–236； UniProt 20–255

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	1tl2
Deposition date deposition_date	1998-12-14
Structure title title	TACHYLECTIN-2 FROM TACHYPLEUS TRIDENTATUS (JAPANESE HORSESHOE CRAB)
Keywords keywords	ANIMAL LECTIN, HORSESHOE CRAB, N-ACETYLGLUCOSAMINE, BETA-PROPELLER, 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.

1tl2__assembly_1__model_1

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

Download this curve (.dat)

1tl2__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1tl2__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.42 Å
Rg (electron density)	17.94 Å
Total Rg	19.07 Å
Atom count	1980
Residues	235
Excluded volume	34996 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1tl2__assembly_1__model_1`	monomeric （1）	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 (3)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1tl2a_
Class class	b — All beta proteins
Fold Fold fold	b.67 — 5-bladed beta-propeller
Superfamily Superfamily superfamily	b.67.1 — Tachylectin-2
Family Family family	b.67.1.1 — Tachylectin-2

CATH v4.4 (1 domains)

Domain ID domain_id	1tl2A00
Class class	2 — Mainly Beta
Architecture architecture	115 — 5 Propeller
Topology topology	10 — Tachylectin-2; Chain A
Homologous superfamily homologous superfamily	10 — Tachylectin 2

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Unit-cell length a length_a	89.460 Å
Unit-cell length b length_b	89.460 Å
Unit-cell length c length_c	73.620 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	15.000 Å
R factor r_factor	—
R_work r_work	0.1620
R_free r_free	0.2020

Description description	PROTEIN (TACHYLECTIN-2)
Molecular weight formula_weight	26825.9 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2138

TACHYLECTIN-2 FROM TACHYPLEUS TRIDENTATUS (JAPANESE HORSESHOE CRAB)

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

PROTEIN (TACHYLECTIN-2)

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

1tl2__assembly_1__model_1

1tl2__assembly_1__model_1 | I(q)

1tl2__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	158

TACHYLECTIN-2 FROM TACHYPLEUS TRIDENTATUS (JAPANESE HORSESHOE CRAB)

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

PROTEIN (TACHYLECTIN-2)

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

1tl2__assembly_1__model_1

1tl2__assembly_1__model_1 | I(q)

1tl2__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)