1apm

2.0 ANGSTROM REFINED CRYSTAL STRUCTURE OF THE CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE COMPLEXED WITH A PEPTIDE INHIBITOR AND DETERGENT

Method: X-RAY DIFFRACTION Dmax: 67.7 Å Quality: GOOD

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

cAMP-DEPENDENT PROTEIN KINASE

Mus musculus

UniProt P05132

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 1–350 Non-standard monomer:Yes (specific site not provided by mmCIF) PEPTIDE INHIBITOR PKI(5-24) × 1 (P63248) OCT N-OCTANE × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

84 other PDB entries and 99 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name KAPCA_MOUSE
Isoform
PDB entities 1
Chains and sequence ranges Author chain E; PDBConstruct 1–350; UniProt 1–350

PEPTIDE INHIBITOR PKI(5-24)

Mus musculus

UniProt P63248

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain I; UniProt 5–24 Not recorded cAMP-DEPENDENT PROTEIN KINASE × 1 (P05132) OCT N-OCTANE × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

46 other PDB entries and 46 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IPKA_MOUSE
Isoform
PDB entities 2
Chains and sequence ranges Author chain I; PDBConstruct 1–20; UniProt 5–24

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.

SAXS scattering curve SAXS Profile

SAXS profile for 1apm

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1apm
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1apm
Deposition date deposition_date1993-01-18
Structure title title2.0 ANGSTROM REFINED CRYSTAL STRUCTURE OF THE CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE COMPLEXED WITH A PEPTIDE INHIBITOR AND DETERGENT
Keywords keywordsTRANSFERASE(PHOSPHOTRANSFERASE); TRANSFERASE(PHOSPHOTRANSFERASE)
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier21.46
Radius of gyration Rg (electron density) rg_electron20.04
Forward intensity I(0) i026203300.00
Molecular weight molecular_weight40327.0 kDa
Excluded volume excluded_volume50850 ų
Envelope volume envelope_volume58725 ų
Hydration-shell volume shell_volume23869 ų
Envelope diameter envelope_diameter70.3
Shell Rg shell_rg27.19
Envelope Rg envelope_rg20.27
Shape Rg shape_rg20.01
Total Rg total_rg21.08
Total atoms total_atoms2854
Residues n_residues358
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax67.7
Rg (real space) rg_real21.31
Rg uncertainty (real space) rg_real_error0.51
I(0) (real space) i0_real2.6200e+07
I(0) uncertainty (real space) i0_real_error3.1950e+05
Rg (reciprocal space) rg_reciprocal21.34
I(0) (reciprocal space) i0_reciprocal26200000.0000
Solution quality estimate total_estimate0.8113
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary26.9
Skewness Skewness skewness0.157
Kurtosis Kurtosis kurtosis-0.394
Angular range angular_range— – 0.3700 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6951000.0000
Real-space data points n_real_points69
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.852; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1apme_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.144 — Protein kinase-like (PK-like)
Superfamily Superfamily superfamilyd.144.1 — Protein kinase-like (PK-like)
Family Family familyd.144.1.7 — Protein kinases, catalytic subunit
Domain ID domain_idd1apmi_
Class classj — Peptides
Fold Fold foldj.126 — cAMP-dependent protein kinase inhibitor
Superfamily Superfamily superfamilyj.126.1 — cAMP-dependent protein kinase inhibitor
Family Family familyj.126.1.1 — cAMP-dependent protein kinase inhibitor

CATH v4.4 (2 domains)

Domain ID domain_id1apmE01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily10 — Transferase(Phosphotransferase) domain 1
Domain ID domain_id1apmE02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily20 — Phosphorylase Kinase; domain 1

8. Citations (5)

9. Files and Curves (10)