SAXSdb — 1i7a

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

HOMER 2B

Mus musculus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	PHE-ALA-PHE × 1 CITRATE ANION × 1 PHENYLALANINE × 1 water × 2	Consistent with protein count
10	Protein heterocomplex	Heteromer	Protein 2	PHE-ALA-PHE × 1 CITRATE ANION × 1 PHENYLALANINE × 1 water × 2	Consistent with protein count
11	Protein monomer	Monomer	Protein 1	CITRATE ANION × 1 PHENYLALANINE × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	CITRATE ANION × 1 PHENYLALANINE × 1 water × 1	Consistent with protein count
3	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
4	Protein monomer	Monomer	Protein 1	PHENYLALANINE × 1 water × 1	Consistent with protein count
5	Protein heterocomplex	Heteromer	Protein 3	PHE-ALA-PHE × 1 CITRATE ANION × 1 PHENYLALANINE × 2 water × 3	Consistent with protein count
6	Protein homooligomer	Homooligomer	Protein 2	CITRATE ANION × 1 PHENYLALANINE × 1 water × 2	Consistent with protein count
7	Protein heterocomplex	Heteromer	Protein 3	PHE-ALA-PHE × 1 CITRATE ANION × 1 PHENYLALANINE × 1 water × 3	Consistent with protein count
8	Protein homooligomer	Homooligomer	Protein 2	CITRATE ANION × 1 PHENYLALANINE × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	HOME2_MOUSE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–111； UniProt 1–111 Author chain B； PDBConstruct 1–111； UniProt 1–111 Author chain C； PDBConstruct 1–111； UniProt 1–111 Author chain D； PDBConstruct 1–111； UniProt 1–111

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	1i7a
Deposition date deposition_date	2001-03-08
Structure title title	EVH1 DOMAIN FROM MURINE HOMER 2B/VESL 2
Keywords keywords	EVH1 domain, Homer, Vesl, X-ray crystal structure, brain, SIGNALING PROTEIN; SIGNALING 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.

1i7a__assembly_9__model_1

Assembly 9 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1i7a__assembly_9__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1i7a__assembly_9__model_1 | P(r) · Pending

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

Rg（Guinier）	5.91 Å
Rg (electron density)	3.94 Å
Total Rg	6.52 Å
Atom count	27
Residues	3
Excluded volume	505 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1i7a__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1i7a__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1i7a__assembly_3__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1i7a__assembly_4__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
5	1	`1i7a__assembly_5__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
6	1	`1i7a__assembly_6__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
7	1	`1i7a__assembly_7__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
8	1	`1i7a__assembly_8__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
9	1	`1i7a__assembly_9__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
10	1	`1i7a__assembly_10__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
11	1	`1i7a__assembly_11__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 (5)

Entity 1 Entity 1 polymer

Description description	HOMER 2B
Molecular weight formula_weight	12576.2 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	3513

MGEQPIFTTRAHVFQIDPSTKKNWVPASKQAVTVSYFYDVTRNSYRIISVDGAKVIINSTITPNMTFTKTSQKFGQWADSRANTVFGLGFSSELQLTKFAEKFQEVREAAR

Source Source

Source organism organism	Mus musculus
Common name common_name	house mouse
NCBI taxonomy ID ncbi_taxonomy_id	10090
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	PHE-ALA-PHE
Molecular weight formula_weight	383.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

FAF

Entity 3 Entity 3 non-polymer

Description description	CITRATE ANION
Molecular weight formula_weight	189.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	PHENYLALANINE
Molecular weight formula_weight	165.2 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	106

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1i7aa_
Class class	b — All beta proteins
Fold Fold fold	b.55 — PH domain-like barrel
Superfamily Superfamily superfamily	b.55.1 — PH domain-like
Family Family family	b.55.1.4 — Enabled/VASP homology 1 domain (EVH1 domain)

Domain ID domain_id	d1i7ab_
Class class	b — All beta proteins
Fold Fold fold	b.55 — PH domain-like barrel
Superfamily Superfamily superfamily	b.55.1 — PH domain-like
Family Family family	b.55.1.4 — Enabled/VASP homology 1 domain (EVH1 domain)

Domain ID domain_id	d1i7ac_
Class class	b — All beta proteins
Fold Fold fold	b.55 — PH domain-like barrel
Superfamily Superfamily superfamily	b.55.1 — PH domain-like
Family Family family	b.55.1.4 — Enabled/VASP homology 1 domain (EVH1 domain)

Domain ID domain_id	d1i7ad_
Class class	b — All beta proteins
Fold Fold fold	b.55 — PH domain-like barrel
Superfamily Superfamily superfamily	b.55.1 — PH domain-like
Family Family family	b.55.1.4 — Enabled/VASP homology 1 domain (EVH1 domain)

CATH v4.4 (4 domains)

Domain ID domain_id	1i7aA00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	29 — PH-domain like
Homologous superfamily homologous superfamily	30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)

Domain ID domain_id	1i7aB00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	29 — PH-domain like
Homologous superfamily homologous superfamily	30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)

Domain ID domain_id	1i7aC00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	29 — PH-domain like
Homologous superfamily homologous superfamily	30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)

Domain ID domain_id	1i7aD00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	29 — PH-domain like
Homologous superfamily homologous superfamily	30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)

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Unit-cell length a length_a	64.716 Å
Unit-cell length b length_b	50.014 Å
Unit-cell length c length_c	73.098 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	101.19 °
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	2.240 Å
Low-resolution limit resolution_low	15.000 Å
R factor r_factor	—
R_work r_work	0.2350
R_free r_free	0.2960

EVH1 DOMAIN FROM MURINE HOMER 2B/VESL 2

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

HOMER 2B

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

1i7a__assembly_9__model_1

1i7a__assembly_9__model_1 | I(q)

1i7a__assembly_9__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

EVH1 DOMAIN FROM MURINE HOMER 2B/VESL 2

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

HOMER 2B

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

1i7a__assembly_9__model_1

1i7a__assembly_9__model_1 | I(q)

1i7a__assembly_9__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)