SAXSdb — 2r2i

▼

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

Guanylyl cyclase-activating protein 1

Gallus gallus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	CALCIUM ION × 3 MYRISTIC ACID × 1 BETA-MERCAPTOETHANOL × 4 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GUC1A_CHICK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–198； UniProt 2–199

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	2r2i
Deposition date deposition_date	2007-08-25
Structure title title	Myristoylated Guanylate Cyclase Activating Protein-1 with Calcium Bound
Keywords keywords	;EF hand, GCAP, Guanylate Cyclase Activating Protein, GCAP1, GCAP-1, Calcium, Lipoprotein, Myristate, Sensory transduction, Vision, Lyase Activator ;; Lyase Activator
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.

2r2i__assembly_1__model_1

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

Download this curve (.dat)

2r2i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2r2i__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.98 Å
Rg (electron density)	16.59 Å
Total Rg	17.66 Å
Atom count	1514
Residues	184
Excluded volume	27368 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2r2i__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 (5)

Entity 1 Entity 1 polymer

Description description	Guanylyl cyclase-activating protein 1
Molecular weight formula_weight	22730.7 kDa
Mutation mutation	G6S
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	1598

GNMDSKAVEELSATECHQWYKKFMTECPSGQLTLYEFKQFFGLKNLSPSANKYVEQMFETFDFNKDGYIDFMEYVAALSLVLKGKVDQKLRWYFKLYDVDGNGCIDRGELLNIIKAIRAINRCNEAMTAEEFTNMVFDKIDINGDGELSLEEFMEGVQKDEVLLDILTRSLDLTHIVKLIQNDGKNPHAPEEAEEAAQ

Source Source

Source organism organism	Gallus gallus
Common name common_name	chicken
NCBI taxonomy ID ncbi_taxonomy_id	9031
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 3 Entity 3 non-polymer

Description description	MYRISTIC ACID
Molecular weight formula_weight	228.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	BETA-MERCAPTOETHANOL
Molecular weight formula_weight	78.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	84

▼

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2r2ia_
Class class	a — All alpha proteins
Fold Fold fold	a.39 — EF Hand-like
Superfamily Superfamily superfamily	a.39.1 — EF-hand
Family Family family	a.39.1.0 — automated matches

CATH v4.4 (2 domains)

Domain ID domain_id	2r2iA01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	238 — Recoverin; domain 1
Homologous superfamily homologous superfamily	10 — EF-hand

Domain ID domain_id	2r2iA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	238 — Recoverin; domain 1
Homologous superfamily homologous superfamily	10 — EF-hand

▶

Unit-cell length a length_a	73.333 Å
Unit-cell length b length_b	73.333 Å
Unit-cell length c length_c	73.229 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	8

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	29.930 Å
R factor r_factor	0.2180
R_work r_work	0.2180
R_free r_free	0.2510

Myristoylated Guanylate Cyclase Activating Protein-1 with Calcium Bound

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

Guanylyl cyclase-activating protein 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

2r2i__assembly_1__model_1

2r2i__assembly_1__model_1 | I(q)

2r2i__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Myristoylated Guanylate Cyclase Activating Protein-1 with Calcium Bound

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

Guanylyl cyclase-activating protein 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

2r2i__assembly_1__model_1

2r2i__assembly_1__model_1 | I(q)

2r2i__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)