7lc1

Crystal Structure of KRAS4b (GMPPNP-bound) in complex with the RBD-PH domains of SIN1

Method: X-RAY DIFFRACTION Dmax: 133.1 Å Quality: GOOD

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

Isoform 2B of GTPase KRas

Homo sapiens

UniProt P01116

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 A; UniProt 1–169 Mutation:Q25A Target of rapamycin complex 2 subunit MAPKAP1 × 1 (Q9BPZ7) MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;200 mM ammonium sulfate, 100 mM HEPES (N-2-hydroxyethyl piperazine-N-ethane sulfonic acid) pH 7.5, 25% PEG 3350 Resolution 2.35 Å R-free 0.279
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–169 Mutation:Q25A Target of rapamycin complex 2 subunit MAPKAP1 × 1 (Q9BPZ7) MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;200 mM ammonium sulfate, 100 mM HEPES (N-2-hydroxyethyl piperazine-N-ethane sulfonic acid) pH 7.5, 25% PEG 3350 Resolution 2.35 Å R-free 0.279

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.

445 other PDB entries and 803 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RASK_HUMAN
Isoform P01116-2
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–170; UniProt 1–169 Author chain C; PDBConstruct 2–170; UniProt 1–169

Target of rapamycin complex 2 subunit MAPKAP1

Homo sapiens

UniProt Q9BPZ7

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 B; UniProt 275–510 Not recorded Isoform 2B of GTPase KRas × 1 (P01116) MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;200 mM ammonium sulfate, 100 mM HEPES (N-2-hydroxyethyl piperazine-N-ethane sulfonic acid) pH 7.5, 25% PEG 3350 Resolution 2.35 Å R-free 0.279
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 275–510 Not recorded Isoform 2B of GTPase KRas × 1 (P01116) MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;200 mM ammonium sulfate, 100 mM HEPES (N-2-hydroxyethyl piperazine-N-ethane sulfonic acid) pH 7.5, 25% PEG 3350 Resolution 2.35 Å R-free 0.279

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.

22 other PDB entries and 23 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SIN1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 2–237; UniProt 275–510 Author chain D; PDBConstruct 2–237; UniProt 275–510

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 7lc1

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7lc1
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id7lc1
Deposition date deposition_date2021-01-09
Structure title titleCrystal Structure of KRAS4b (GMPPNP-bound) in complex with the RBD-PH domains of SIN1
Keywords keywordsKRAS, RAS, K-RAS, ONCOPROTEIN, GMPPNP, GppNHp, SIN1, MAPKAP1, PH DOMAIN, RBD, RAS-BINDING DOMAIN, EFFECTOR, SMALL GTPase, Hydrolase; ONCOPROTEIN, Hydrolase
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.44
Radius of gyration Rg (electron density) rg_electron34.41
Forward intensity I(0) i0120028000.00
Molecular weight molecular_weight85337.0 kDa
Excluded volume excluded_volume105960 ų
Envelope volume envelope_volume145440 ų
Hydration-shell volume shell_volume36430 ų
Envelope diameter envelope_diameter143.8
Shell Rg shell_rg39.40
Envelope Rg envelope_rg34.20
Shape Rg shape_rg34.45
Total Rg total_rg34.67
Total atoms total_atoms5996
Residues n_residues766
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 dmax133.1
Rg (real space) rg_real34.49
Rg uncertainty (real space) rg_real_error1.87
I(0) (real space) i0_real1.2000e+08
I(0) uncertainty (real space) i0_real_error2.2540e+06
Rg (reciprocal space) rg_reciprocal34.46
I(0) (reciprocal space) i0_reciprocal120000000.0000
Solution quality estimate total_estimate0.8217
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary46.3
Skewness Skewness skewness0.325
Kurtosis Kurtosis kurtosis-0.350
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha23300000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.625; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.804; Smooth: 1.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id7lc1A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id7lc1B01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id7lc1C01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases

8. Citations (1)

9. Files and Curves (10)