SAXSdb — 1zca

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

G alpha i/12

Mus musculus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 GUANOSINE-5'-DIPHOSPHATE × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 GUANOSINE-5'-DIPHOSPHATE × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GNA12_MOUSE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–28； UniProt 1–28 Author chain A； PDBConstruct 29–359； UniProt 48–378 Author chain B； PDBConstruct 1–28； UniProt 1–28 Author chain B； PDBConstruct 29–359； UniProt 48–378

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	1zca
Deposition date deposition_date	2005-04-11
Structure title title	Crystal structure of G alpha 12 in complex with GDP, Mg2+ and AlF4-
Keywords keywords	GTP-binding, Lipoprotein, Membrane, Palmitate, Transducer, 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.

1zca__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1zca__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1zca__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	21.53 Å
Rg (electron density)	20.65 Å
Total Rg	21.54 Å
Atom count	2649
Residues	317
Excluded volume	47392 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1zca__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1zca__assembly_2__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	G alpha i/12
Molecular weight formula_weight	41952.5 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	5313

MGCTLSAEDKAAVERSKMIDRNLREDGERRAVRRLVKILLLGAGESGKSTFLKQMRIIHGREFDQKALLEFRDTIFDNILKGSRVLVDARDKLGIPWQHSENEKHGMFLMAFENKAGLPVEPATFQLYVPALSALWRDSGIREAFSRRSEFQLGESVKYFLDNLDRIGQLNYFPSKQDILLARKATKGIVEHDFVIKKIPFKMVDVGGQRSQRQKWFQCFDGITSILFMVSSSEYDQVLMEDRRTNRLVESMNIFETIVNNKLFFNVSIILFLNKMDLLVEKVKSVSIKKHFPDFKGDPHRLEDVQRYLVQCFDRKRRNRSKPLFHHFTTAIDTENIRFVFHAVKDTILQENLKDIMLQ

Source Source

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

Entity 2 Entity 2 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	TETRAFLUOROALUMINATE ION
Molecular weight formula_weight	103.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	GUANOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	443.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	6

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1zcaa1
Class class	a — All alpha proteins
Fold Fold fold	a.66 — Transducin (alpha subunit), insertion domain
Superfamily Superfamily superfamily	a.66.1 — Transducin (alpha subunit), insertion domain
Family Family family	a.66.1.1 — Transducin (alpha subunit), insertion domain

Domain ID domain_id	d1zcaa2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.8 — G proteins

Domain ID domain_id	d1zcab1
Class class	a — All alpha proteins
Fold Fold fold	a.66 — Transducin (alpha subunit), insertion domain
Superfamily Superfamily superfamily	a.66.1 — Transducin (alpha subunit), insertion domain
Family Family family	a.66.1.1 — Transducin (alpha subunit), insertion domain

Domain ID domain_id	d1zcab2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.8 — G proteins

CATH v4.4 (4 domains)

Domain ID domain_id	1zcaA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1zcaA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	400 — GI Alpha 1, domain 2-like
Homologous superfamily homologous superfamily	10 — GI Alpha 1, domain 2-like

Domain ID domain_id	1zcaB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1zcaB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	400 — GI Alpha 1, domain 2-like
Homologous superfamily homologous superfamily	10 — GI Alpha 1, domain 2-like

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Unit-cell length a length_a	57.501 Å
Unit-cell length b length_b	85.230 Å
Unit-cell length c length_c	82.885 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	106.09 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.900 Å
Low-resolution limit resolution_low	29.100 Å
R factor r_factor	0.2389
R_work r_work	0.2359
R_free r_free	0.2961

Crystal structure of G alpha 12 in complex with GDP, Mg2+ and AlF4-

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

G alpha i/12

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

1zca__assembly_2__model_1

1zca__assembly_2__model_1 | I(q)

1zca__assembly_2__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 non-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)

Crystal structure of G alpha 12 in complex with GDP, Mg2+ and AlF4-

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

G alpha i/12

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

1zca__assembly_2__model_1

1zca__assembly_2__model_1 | I(q)

1zca__assembly_2__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 non-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)