SAXSdb — 1igr

▼

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

INSULIN-LIKE GROWTH FACTOR RECEPTOR 1

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Monomer	Protein 1 其他Polymer 2	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 SULFATE ION × 8 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	IG1R_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–462； UniProt 31–492

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	1igr
Deposition date deposition_date	1998-09-28
Structure title title	Type 1 Insulin-like growth factor receptor (DOMAINS 1-3)
Keywords keywords	HORMONE RECEPTOR, INSULIN RECEPTOR FAMILY; HORMONE RECEPTOR
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.

1igr__assembly_1__model_1

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

Download this curve (.dat)

1igr__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1igr__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	33.68 Å
Rg (electron density)	33.31 Å
Total Rg	33.73 Å
Atom count	3852
Residues	471
Excluded volume	68160 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1igr__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Description description	INSULIN-LIKE GROWTH FACTOR RECEPTOR 1
Molecular weight formula_weight	54393.7 kDa
EC 编号 ec_number	2.7.10.1
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	3900

EICGPGIDIRNDYQQLKRLENCTVIEGYLHILLISKAEDYRSYRFPKLTVITEYLLLFRVAGLESLGDLFPNLTVIRGWKLFYNYALVIFEMTNLKDIGLYNLRNITRGAIRIEKNADLCYLSTVDWSLILDAVSNNYIVGNKPPKECGDLCPGTMEEKPMCEKTTINNEYNYRCWTTNRCQKMCPSTCGKRACTENNECCHPECLGSCSAPDNDTACVACRHYYYAGVCVPACPPNTYRFEGWRCVDRDFCANILSAESSDSEGFVIHDGECMQECPSGFIRNGSQSMYCIPCEGPCPKVCEEEKKTKTIDSVTSAQMLQGCTIFKGNLLINIRRGNNIASELENFMGLIEVVTGYVKIRHSHALVSLSFLKNLRLILGEEQLEGNYSFYVLDNQNLQQLWDWDHRNLTIKAGKMYFAFNPKLCVSEIYRMEEVTGTKGRQSKGDINTRNNGERASCESDVDDDDKEQKLISEEDLN

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Cricetulus griseus

Entity 2 Entity 2 branched

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]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 3 Entity 3 branched

Description description	;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	894.8 kDa
Source method src_method	man
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	48

▼

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1igra1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Superfamily Superfamily superfamily	c.10.2 — L domain-like
Family Family family	c.10.2.5 — L domain

Domain ID domain_id	d1igra2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Superfamily Superfamily superfamily	c.10.2 — L domain-like
Family Family family	c.10.2.5 — L domain

Domain ID domain_id	d1igra3
Class class	g — Small proteins
Fold Fold fold	g.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamily	g.3.9 — Growth factor receptor domain
Family Family family	g.3.9.1 — Growth factor receptor domain

CATH v4.4 (3 domains)

Domain ID domain_id	1igrA01
Class class	3 — Alpha Beta
Architecture architecture	80 — Alpha-Beta Horseshoe
Topology topology	20 — 24 nucleotide stem-loop, u2 snrnp hairpin iv. U2 a'; Chain A
Homologous superfamily homologous superfamily	20 — Receptor L-domain

Domain ID domain_id	1igrA02
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	220 — Hormone Receptor, Insulin-like Growth Factor Receptor 1; Chain A domain 2
Homologous superfamily homologous superfamily	10 — Hormone Receptor, Insulin-like Growth Factor Receptor 1; Chain A, domain 2

Domain ID domain_id	1igrA03
Class class	3 — Alpha Beta
Architecture architecture	80 — Alpha-Beta Horseshoe
Topology topology	20 — 24 nucleotide stem-loop, u2 snrnp hairpin iv. U2 a'; Chain A
Homologous superfamily homologous superfamily	20 — Receptor L-domain

▶

Unit-cell length a length_a	77.390 Å
Unit-cell length b length_b	99.720 Å
Unit-cell length c length_c	120.290 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	4

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.600 Å
Low-resolution limit resolution_low	7.000 Å
R factor r_factor	—
R_work r_work	0.2370
R_free r_free	0.3040

Type 1 Insulin-like growth factor receptor (DOMAINS 1-3)

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

INSULIN-LIKE GROWTH FACTOR RECEPTOR 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

1igr__assembly_1__model_1

1igr__assembly_1__model_1 | I(q)

1igr__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

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 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (2)

Type 1 Insulin-like growth factor receptor (DOMAINS 1-3)

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

INSULIN-LIKE GROWTH FACTOR RECEPTOR 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

1igr__assembly_1__model_1

1igr__assembly_1__model_1 | I(q)

1igr__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

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 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (2)