24SS | pdb_000024ss

Human KRAS WT (GDP-bound) in complex with macrocyclic peptide inhibitor AUBE00


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.56 Å
  • R-Value Free: 
    0.200 (Depositor), 0.200 (DCC) 
  • R-Value Work: 
    0.177 (Depositor), 0.177 (DCC) 
  • R-Value Observed: 
    0.178 (Depositor) 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 24SS

Ligand Structure Quality Assessment 


This is version 1.0 of the entry. See complete history

Literature

Exploiting Bridged Conformations for Precise Molecular Recognition in the Design of KRAS-Selective, Orally Available Macrocyclic Peptides

Kage, M.Kawada, H.Takano, K.Matsuo, A.Murata, Y.Hashimoto, S.Tamiya, M.Kotake, T.Kuramoto, S.Yamano, T.Irie, M.Ohara, K.Sakurai, Y.Nomura, K.Morita, Y.Hayashi, R.Wakamiya, Y.Takei, K.Tanaka, H.Nishimura, Y.Iikura, H.Shiraishi, T.Tanada, M.

(2026) J Am Chem Soc 

Macromolecule Content 

  • Total Structure Weight: 68.74 kDa 
  • Atom Count: 5,351 
  • Modeled Residue Count: 560 
  • Deposited Residue Count: 573 
  • Unique protein chains: 2

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Isoform 2B of GTPase KRas
A, B, C
179Homo sapiensMutation(s): 0 
Gene Names: KRASKRAS2RASK2
EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P01116 (Homo sapiens)
Go to UniProtKB:  P01116
PHAROS:  P01116
GTEx:  ENSG00000133703 
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01116-2
Sequence Annotations
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Reference Sequence
Find similar proteins by:  Sequence   |   3D Structure  
Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
AUBE00D [auth I],
E [auth J],
F [auth K]
12synthetic constructMutation(s): 0 
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GDP
(Subject of Investigation/LOI)

Query on GDP



Download:Ideal Coordinates CCD File
G [auth A],
KA [auth C],
V [auth B]
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
SO4

Query on SO4



Download:Ideal Coordinates CCD File
T [auth A],
TA [auth C]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
DMS

Query on DMS



Download:Ideal Coordinates CCD File
UA [auth C]DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
EDO

Query on EDO



Download:Ideal Coordinates CCD File
AA [auth B]
BA [auth B]
CA [auth B]
DA [auth B]
EA [auth B]
AA [auth B],
BA [auth B],
CA [auth B],
DA [auth B],
EA [auth B],
FA [auth B],
GA [auth B],
H [auth A],
I [auth A],
IA [auth B],
J [auth A],
JA [auth C],
K [auth A],
L [auth A],
LA [auth C],
M [auth A],
MA [auth C],
N [auth A],
NA [auth C],
O [auth A],
OA [auth C],
P [auth A],
PA [auth C],
QA [auth C],
R [auth A],
RA [auth C],
S [auth A],
U [auth B],
W [auth B],
X [auth B],
Y [auth B],
Z [auth B]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
MG
(Subject of Investigation/LOI)

Query on MG



Download:Ideal Coordinates CCD File
HA [auth B],
Q [auth A],
SA [auth C]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Modified Residues  8 Unique
IDChains TypeFormula2D DiagramParent
7VN
Query on 7VN
D [auth I],
E [auth J],
F [auth K]
L-PEPTIDE LINKINGC8 H15 N O2ALA
A1L7N
Query on A1L7N
D [auth I],
E [auth J],
F [auth K]
L-PEPTIDE LINKINGC6 H13 N O2

--

A1MFO
Query on A1MFO
D [auth I],
E [auth J],
F [auth K]
L-PEPTIDE LINKINGC14 H16 F3 N O2

--

A1MFP
Query on A1MFP
D [auth I],
E [auth J],
F [auth K]
L-PEPTIDE LINKINGC6 H11 N O2

--

A1MFQ
Query on A1MFQ
D [auth I],
E [auth J],
F [auth K]
L-PEPTIDE LINKINGC12 H14 F3 N O3

--

A1MFR
Query on A1MFR
D [auth I],
E [auth J],
F [auth K]
PEPTIDE LINKINGC6 H11 N O2

--

SAR
Query on SAR
D [auth I],
E [auth J],
F [auth K]
PEPTIDE LINKINGC3 H7 N O2GLY
ZNY
Query on ZNY
D [auth I],
E [auth J],
F [auth K]
L-PEPTIDE LINKINGC7 H13 N O3

--

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.56 Å
  • R-Value Free:  0.200 (Depositor), 0.200 (DCC) 
  • R-Value Work:  0.177 (Depositor), 0.177 (DCC) 
  • R-Value Observed: 0.178 (Depositor) 
Space Group: I 4 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 144.031α = 90
b = 144.031β = 90
c = 181.173γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
autoPROCdata processing
XDSdata reduction
Aimlessdata scaling
STARANISOdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2026-09-16
    Type: Initial release