1kpb

PKCI-1-APO

Method: X-RAY DIFFRACTION Dmax: 59.3 Å Quality: GOOD

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

HUMAN PROTEIN KINASE C INTERACTING PROTEIN 1 (ZINC PROTEIN)

Homo sapiens

UniProt P49773

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–125 Chain B; UniProt 1–125 Not recorded No other associated polymer X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å R-free 0.248

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.

60 other PDB entries and 67 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HINT1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–125; UniProt 1–125 Author chain B; PDBConstruct 1–125; UniProt 1–125

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 1kpb

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1kpb
Deposition date deposition_date1996-01-06
Structure title titlePKCI-1-APO
Keywords keywordsPKCI-1, PKC, SIGNAL TRANSDUCTION, ZINC BINDING PROTEIN, PROTEIN KINASE C INTERACTING PROTEIN; PROTEIN KINASE C INTERACTING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.54
Radius of gyration Rg (electron density) rg_electron16.52
Forward intensity I(0) i011144200.00
Molecular weight molecular_weight24837.0 kDa
Excluded volume excluded_volume31109 ų
Envelope volume envelope_volume34022 ų
Hydration-shell volume shell_volume17153 ų
Envelope diameter envelope_diameter59.0
Shell Rg shell_rg22.78
Envelope Rg envelope_rg16.69
Shape Rg shape_rg16.52
Total Rg total_rg17.50
Total atoms total_atoms1748
Residues n_residues226
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 dmax59.3
Rg (real space) rg_real17.41
Rg uncertainty (real space) rg_real_error0.35
I(0) (real space) i0_real1.1140e+07
I(0) uncertainty (real space) i0_real_error1.3550e+05
Rg (reciprocal space) rg_reciprocal17.42
I(0) (reciprocal space) i0_reciprocal11140000.0000
Solution quality estimate total_estimate0.7800
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.7
Skewness Skewness skewness0.148
Kurtosis Kurtosis kurtosis-0.228
Angular range angular_range— – 0.4550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3155000.0000
Real-space data points n_real_points76
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.712; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1kpba_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.13 — HIT-like
Superfamily Superfamily superfamilyd.13.1 — HIT-like
Family Family familyd.13.1.1 — HIT (HINT, histidine triad) family of protein kinase-interacting proteins
Domain ID domain_idd1kpbb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.13 — HIT-like
Superfamily Superfamily superfamilyd.13.1 — HIT-like
Family Family familyd.13.1.1 — HIT (HINT, histidine triad) family of protein kinase-interacting proteins

CATH v4.4 (2 domains)

Domain ID domain_id1kpbA00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology428 — HIT family, subunit A
Homologous superfamily homologous superfamily10 — HIT-like
Domain ID domain_id1kpbB00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology428 — HIT family, subunit A
Homologous superfamily homologous superfamily10 — HIT-like

8. Citations (1)

9. Files and Curves (10)