SAXSdb — 5xby

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

cAMP-dependent protein kinase type II-alpha regulatory subunit,Immunoglobulin G-binding protein A

Staphylococcus aureus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count
2	Insufficient information	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KAP2_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–44； UniProt 5–44 Author chain B； PDBConstruct 5–44； UniProt 5–44 Author chain C； PDBConstruct 5–44； UniProt 5–44 Author chain D； PDBConstruct 5–44； UniProt 5–44

cAMP-dependent protein kinase type II-alpha regulatory subunit,Immunoglobulin G-binding protein A

Staphylococcus aureus

UniProt P38507

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count
2	Insufficient information	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SPA_STAAU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 45–97； UniProt 217–269 Author chain B； PDBConstruct 45–97； UniProt 217–269 Author chain C； PDBConstruct 45–97； UniProt 217–269 Author chain D； PDBConstruct 45–97； UniProt 217–269

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	5xby
Deposition date deposition_date	2017-03-21
Structure title title	Crystal structure of the PKA-Protein A fusion protein (end-to-end fusion)
Keywords keywords	synthetic protein, kinase, LYASE, SIGNALING PROTEIN, PROTEIN BINDING; SIGNALING PROTEIN, PROTEIN BINDING
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.

5xby__assembly_1__model_1

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

Download this curve (.dat)

5xby__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5xby__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.32 Å
Rg (electron density)	18.65 Å
Total Rg	19.42 Å
Atom count	1070
Residues	131
Excluded volume	19006 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5xby__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`5xby__assembly_2__model_1`	dimeric （2）	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 (1)

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Unit-cell length a length_a	75.988 Å
Unit-cell length b length_b	174.147 Å
Unit-cell length c length_c	103.611 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	32

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	3.250 Å
Low-resolution limit resolution_low	43.537 Å
R factor r_factor	0.2536
R_work r_work	0.2508
R_free r_free	0.3068

Description description	cAMP-dependent protein kinase type II-alpha regulatory subunit,Immunoglobulin G-binding protein A
Molecular weight formula_weight	11130.4 kDa
Mutation mutation	G240A
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	2553

Crystal structure of the PKA-Protein A fusion protein (end-to-end fusion)

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

cAMP-dependent protein kinase type II-alpha regulatory subunit,Immunoglobulin G-binding protein A

State in the Current Structure

Other States of the Same Protein in the Database

cAMP-dependent protein kinase type II-alpha regulatory subunit,Immunoglobulin G-binding protein A

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

5xby__assembly_1__model_1

5xby__assembly_1__model_1 | I(q)

5xby__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

7. Citations (1)

Source organism organism	Staphylococcus aureus
NCBI taxonomy ID ncbi_taxonomy_id	1280
Host organism host_organism	Escherichia coli

Crystal structure of the PKA-Protein A fusion protein (end-to-end fusion)

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

cAMP-dependent protein kinase type II-alpha regulatory subunit,Immunoglobulin G-binding protein A

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

cAMP-dependent protein kinase type II-alpha regulatory subunit,Immunoglobulin G-binding protein A

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

5xby__assembly_1__model_1

5xby__assembly_1__model_1 | I(q)

5xby__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

7. Citations (1)