BMRB Entry 53733

Title:
Backbone 1H, 15N, 13Ca and 13CO chemical shift assignments for the B-Raf RBD domain (155-227) in complex with human K-Ras4B (1-169) G12D mutant and GTP at physiological pH
Deposition date:
2026-04-24
Original release date:
2026-09-02
Authors:
Xiang, Xinyao; Basnet, Mamata; Yuan, Chunhua; Bruschweiler-li, Lei; Bruschweiler, Rafael
Citation:

Citation: Xiang, Xinyao; Basnet, Mamata; Yuan, Chunhua; Bruschweiler-li, Lei; Bruschweiler, Rafael. "GDP-Loaded K-Ras Transiently Binds to Effector B-Raf RBD, Mirroring the Structure of the Active GTP-Loaded Complex "  J. Am. Chem. Soc. 148, 35961-35972 (2026).
PubMed: 42677563

Assembly members:

Assembly members:
entity_1, polymer, 172 residues, Formula weight is not available
entity_2, polymer, 76 residues, Formula weight is not available
entity_MG, non-polymer, 24.305 Da.
entity_GTP, non-polymer, 523.180 Da.

Natural source:

Natural source:   Common Name: Human   Taxonomy ID: 9606   Superkingdom: Eukaryota   Kingdom: Metazoa   Genus/species: Homo sapiens

Experimental source:

Experimental source:   Production method: recombinant technology   Host organism: Escherichia coli   Vector: pTBSG1

Data sets:
Data typeCount
13C chemical shifts142
15N chemical shifts68
1H chemical shifts68

Additional metadata:

  • Assembly
  • Samples and Experiments
  • Software
  • Spectrometers
  • Hide all

Assembly:

Entity Assembly IDEntity NameEntity ID
1subunit KRas-G12D1
2subunit BRBD2
3subunit Mg3
4subunit GTP4

Entities:

Entity 1, subunit KRas-G12D 172 residues - Formula weight is not available

human K-Ras4B G-domain (residues 1-169) G12D mutant

1   SERASNALAMETTHRGLUTYRLYSLEUVAL
2   VALVALGLYALAASPGLYVALGLYLYSSER
3   ALALEUTHRILEGLNLEUILEGLNASNHIS
4   PHEVALASPGLUTYRASPPROTHRILEGLU
5   ASPSERTYRARGLYSGLNVALVALILEASP
6   GLYGLUTHRCYSLEULEUASPILELEUASP
7   THRALAGLYGLNGLUGLUTYRSERALAMET
8   ARGASPGLNTYRMETARGTHRGLYGLUGLY
9   PHELEUCYSVALPHEALAILEASNASNTHR
10   LYSSERPHEGLUASPILEHISHISTYRARG
11   GLUGLNILELYSARGVALLYSASPSERGLU
12   ASPVALPROMETVALLEUVALGLYASNLYS
13   CYSASPLEUPROSERARGTHRVALASPTHR
14   LYSGLNALAGLNASPLEUALAARGSERTYR
15   GLYILEPROPHEILEGLUTHRSERALALYS
16   THRARGGLNGLYVALASPASPALAPHETYR
17   THRLEUVALARGGLUILEARGLYSHISLYS
18   GLULYS

Entity 2, subunit BRBD 76 residues - Formula weight is not available

Ras-binding domain (RBD) of human B-Raf (residues 155-227)

1   SERASNALAPROILEVALARGVALPHELEU
2   PROASNLYSGLNARGTHRVALVALPROALA
3   ARGCYSGLYVALTHRVALARGASPSERLEU
4   LYSLYSALALEUMETMETARGGLYLEUILE
5   PROGLUCYSCYSALAVALTYRARGILEGLN
6   ASPGLYGLULYSLYSPROILEGLYTRPASP
7   THRASPILESERTRPLEUTHRGLYGLUGLU
8   LEUHISVALGLUVALLEU

Entity 3, subunit Mg - Mg - 24.305 Da.

1   MG

Entity 4, subunit GTP - C10 H16 N5 O14 P3 - 523.180 Da.

1   GTP

Samples:

sample_1: entity_KRas-G12D 700 uM; entity_BRBD, [U-100% 13C; U-100% 15N], 700 uM; entity_GTP 10 mM; entity_MgCl2 5 mM; NaCl 100 mM; TCEP 2 mM

sample_conditions_1: ionic strength: 0.1 M; pH: 7.0; pressure: 1 atm; temperature: 298 K

Experiments:

NameSampleSample stateSample conditions
2D 1H-15N HSQCsample_1isotropicsample_conditions_1
2D 1H-13C HSQCsample_1isotropicsample_conditions_1
3D HNCOsample_1isotropicsample_conditions_1
3D HNCAsample_1isotropicsample_conditions_1
3D HN(CO)CAsample_1isotropicsample_conditions_1
3D 15N-separated NOESYsample_1isotropicsample_conditions_1

Software:

TOPSPIN - collection

NMRPipe - processing

NMRViewJ - data analysis

NMR spectrometers:

  • Bruker AVANCE III 850 MHz

Download HSQC peak lists in one of the following formats:
CSV: Backbone or all simulated peaks
SPARKY: Backbone or all simulated peaks