SAXSdb — 6yqi

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

cAMP-dependent protein kinase catalytic subunit alpha

Cricetulus griseus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	cAMP-dependent protein kinase inhibitor alpha × 1 （P63248） ~{N}-[2-(propylamino)ethyl]isoquinoline-5-sulfonamide × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KAPCA_CRIGR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–353； UniProt 1–351

cAMP-dependent protein kinase inhibitor alpha

OrganismNot specified

UniProt P63248

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	cAMP-dependent protein kinase catalytic subunit alpha × 1 （P25321） ~{N}-[2-(propylamino)ethyl]isoquinoline-5-sulfonamide × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	IPKA_MOUSE
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–19； UniProt 12–30

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	6yqi
Deposition date deposition_date	2020-04-17
Structure title title	Crystal structure of cAMP-dependent Protein Kinase (PKA) in complex with long-chain Fasudil-derivative N-[2-(propylamino)ethyl]isoquinoline-5-sulfonamide (soaked)
Keywords keywords	phosphotransferase, signalling pathways, glycogen metabolism, serine/threonine kinase, TRANSFERASE; TRANSFERASE
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.

6yqi__assembly_1__model_1

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

Download this curve (.dat)

6yqi__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6yqi__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.74 Å
Rg (electron density)	20.22 Å
Total Rg	21.27 Å
Atom count	5517
Residues	356
Excluded volume	50718 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6yqi__assembly_1__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 (4)

Entity 1 Entity 1 polymer

Description description	cAMP-dependent protein kinase catalytic subunit alpha
Molecular weight formula_weight	41193.7 kDa
EC 编号 ec_number	2.7.11.11
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	5914

GHMGNAAAAKKGSEQESVKEFLAKAKEEFLKKWESPSQNTAQLDHFDRIKTLGTGSFGRVMLVKHKETGNHYAMKILDKQKVVKLKQIEHTLNEKRILQAVNFPFLVKLEFSFKDNSNLYMVMEYVPGGEMFSHLRRIGRFSEPHARFYAAQIVLTFEYLHSLDLIYRDLKPENLLIDQQGYIQVTDFGFAKRVKGRTWTLCGTPEYLAPEIILSKGYNKAVDWWALGVLIYEMAAGYPPFFADQPIQIYEKIVSGKVRFPSHFSSDLKDLLRNLLQVDLTKRFGNLKNGVNDIKNHKWFATTDWIAIYQRKVEAPFIPKFKGPGDTSNFDDYEEEEIRVSINEKCGKEFTEF

Source Source

Source organism organism	Cricetulus griseus
Common name common_name	Chinese hamster
NCBI taxonomy ID ncbi_taxonomy_id	10029
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 polymer

Description description	cAMP-dependent protein kinase inhibitor alpha
Molecular weight formula_weight	1993.3 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

IAAGRTGRRQAIHDILVAA

Entity 3 Entity 3 non-polymer

Description description	~{N}-[2-(propylamino)ethyl]isoquinoline-5-sulfonamide
Molecular weight formula_weight	293.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	296

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Unit-cell length a length_a	58.107 Å
Unit-cell length b length_b	72.482 Å
Unit-cell length c length_c	108.739 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	orthorhombic

Resolution resolution	1.420 Å
Low-resolution limit resolution_low	36.240 Å
R factor r_factor	0.1550
R_work r_work	0.1537
R_free r_free	0.1801

Crystal structure of cAMP-dependent Protein Kinase (PKA) in complex with long-chain Fasudil-derivative N-[2-(propylamino)ethyl]isoquinoline-5-sulfonamide (soaked)

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

cAMP-dependent protein kinase catalytic subunit alpha

State in the Current Structure

Other States of the Same Protein in the Database

cAMP-dependent protein kinase inhibitor alpha

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

6yqi__assembly_1__model_1

6yqi__assembly_1__model_1 | I(q)

6yqi__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 (4)

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 water

7. Citations (1)

Crystal structure of cAMP-dependent Protein Kinase (PKA) in complex with long-chain Fasudil-derivative N-[2-(propylamino)ethyl]isoquinoline-5-sulfonamide (soaked)

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

cAMP-dependent protein kinase catalytic subunit alpha

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 inhibitor alpha

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

6yqi__assembly_1__model_1

6yqi__assembly_1__model_1 | I(q)

6yqi__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 (4)

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 water

7. Citations (1)