SAXSdb — 1tgg

▼

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

No usable UniProt protein identity is available for this entry.

The relationship tables retain this entry's assembly and composition data, but cross-PDB links for the same protein cannot be established reliably without a unified protein identity.

Assembly Composition of the Current Entry

Assembly	Physical composition	Protein state	蛋白 / DNA / RNA / 其他Polymer	Data consistency
1	Protein homooligomer	Homooligomer	3 / 0 / 0 / 0	Consistent with protein count
2	Protein homooligomer	Homooligomer	3 / 0 / 0 / 0	Consistent with protein count

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	1tgg
Deposition date deposition_date	2004-05-28
Structure title title	RH3 DESIGNED RIGHT-HANDED COILED COIL TRIMER
Keywords keywords	coiled coil; de novo design, DE NOVO PROTEIN; DE NOVO PROTEIN
Experimental Method method	X-RAY DIFFRACTION

▼

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.

1tgg__assembly_1__model_1

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

Download this curve (.dat)

1tgg__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1tgg__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.96 Å
Rg (electron density)	16.05 Å
Total Rg	16.93 Å
Atom count	1005
Residues	75
Excluded volume	15702 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1tgg__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1tgg__assembly_2__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	right-handed coiled coil trimer
Molecular weight formula_weight	4075.8 kDa
Source method src_method	syn
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	1120

XAEIEQIKKEIAYLIKKIKEEILEEIKKIKQEIA

Entity 2 Entity 2 non-polymer

Description description	NICKEL (II) ION
Molecular weight formula_weight	58.7 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 3 Entity 3 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	5

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	115

▼

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1tgga_
Class class	k — Designed proteins
Fold Fold fold	k.17 — Right-handed coiled coil
Superfamily Superfamily superfamily	k.17.1 — Right-handed coiled coil
Family Family family	k.17.1.1 — Right-handed coiled coil

Domain ID domain_id	d1tggb_
Class class	k — Designed proteins
Fold Fold fold	k.17 — Right-handed coiled coil
Superfamily Superfamily superfamily	k.17.1 — Right-handed coiled coil
Family Family family	k.17.1.1 — Right-handed coiled coil

Domain ID domain_id	d1tggc_
Class class	k — Designed proteins
Fold Fold fold	k.17 — Right-handed coiled coil
Superfamily Superfamily superfamily	k.17.1 — Right-handed coiled coil
Family Family family	k.17.1.1 — Right-handed coiled coil

▶

Unit-cell length a length_a	25.420 Å
Unit-cell length b length_b	25.420 Å
Unit-cell length c length_c	141.340 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	9

Space group space_group	P 32
Space-group number int_tables_number	145
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	12.000 Å
R factor r_factor	0.2360
R_work r_work	0.2330
R_free r_free	0.2690

RH3 DESIGNED RIGHT-HANDED COILED COIL TRIMER