MAPK variant effect atlas
Proteins / KRAS

KRAS

GTPase KRas (KRAS4B)

Mutagenized 2–189G domain 1–166G domain1189 aagrey box: mutagenized region

Abundance in LZTR1-knockout cells with RAS activation. CIAR (chemically inducible activator of RAS): a small molecule releases a constitutively active SOS1 variant. Scores are WT-relative: 1 = wild type.

4,048 variantsmissense decreased 34% · increased 11%
Other cells fade; highlighted cells are outlined.
Annotation tracks
Structure
Function
Chaperone
Variant effect
Track legend & definitions
Secondary structure
alpha helix3-10 helixpi helixbeta strandbeta bridgeturnbendno_ss
DSSP assignment on the reference structure.
Relative SASA
0.000.250.500.751.00
Side-chain solvent accessibility (0 = buried, 1 = fully exposed). The pipeline calls a residue surface-exposed above 0.25.
pLDDT
50.062.575.087.5100.0
AlphaFold per-residue confidence. The analysis drops residues below 60.
Curated feature
Protein-protein interfaceCatalytic / active siteLigand / substrate pocketRegulatory elementOther annotation
UniProt / literature annotation, coloured by class. Red marks a curated protein-protein interface — the independent comparison for our predicted interfaces.
Annotated interface
yesno
Curated protein-interface residue, independent of any structure prediction in this study.
Active site
yesno
Curated catalytic / active-site residue.
Inter-domain contact
yesno
Residue contacting another domain of the same protein (all-atom), so a variant effect there may be intramolecular rather than at a PPI.
HSP90 contact
TrueFalseUnknown
Contacts HSP90 in the chaperone-client cryo-EM structures ('Unknown' where the protein was not mapped).
CDC37 contact
TrueFalseUnknown
Contacts CDC37. These positions report kinase foldability rather than a canonical binding surface.
Fraction decreased
0%25%50%75%100%
Fraction of variants at this position classified decreased in this assay (2.5th-percentile rule).
Fraction increased
0%25%50%75%100%
Fraction of variants at this position classified increased in this assay.
Domain Secondary structure Relative SASA pLDDT Curated feature Annotated interface Active site Inter-domain contact HSP90 contact CDC37 contact Fraction decreased Fraction increased Interface A V I L G F Y W C M P S T N Q D E H K R * -
G domain 20 40 60 80 100 120 140 160 180 0.14 1.00 2.00
Click a position for its interactions and annotations — ■ the Interface strip marks positions in ≥1 supported interface (darker = more partners)

Structure · KRAS alone

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Interfaces of KRAS

One row per interface: complexes of the same pair and source whose interfaces overlap (IoU ≥ 0.3) are merged, as in the Fig. 6c,d volcano plots (median Cohen's d; q from the geometric-mean p). Supported: at least one complex with q < 0.05 and |d| ≥ 0.2 in either basal assay.

PartnerSourceActivity dq Abundance dqInterface positionsSupported
IL1RAPAF-M-0.861.2e-54+0.400.0619supportedStructure ↗
RAPGEF2AF-M-0.441.3e-46+0.586.4e-1124supportedStructure ↗
SNAP47AF-M-0.949.7e-42-0.160.0026supportedStructure ↗
TTC4AF-M-0.281.0e-07+2.111.6e-416supportedStructure ↗
PTPN1
H_N_K_Ras_like #2
AF-M-0.805.0e-41+0.210.7898supportedStructure ↗
PIK3R4AF-M-0.692.6e-40+0.902.0e-2112supportedStructure ↗
RPS10AF-M-0.462.0e-16+1.504.0e-409supportedStructure ↗
AFDNAF-M-0.738.1e-40+0.612.0e-0711supportedStructure ↗
DCUN1D3RF2-PPI-1.309.0e-40-0.160.0235supportedStructure ↗
USO1AF-M-0.731.5e-39+1.472.1e-3510supportedStructure ↗
RIN1AF-M-0.762.9e-39+0.375.0e-056supportedStructure ↗
CYFIP1AF-M-0.774.1e-39+0.450.0109supportedStructure ↗
EXOSC5AF-M-0.557.1e-26+1.436.2e-3810supportedStructure ↗
SOS1
H_N_K_Ras_like #2
AF-M-0.654.5e-37+0.070.36516supportedStructure ↗
FRMPD1AF-M-0.831.4e-36+0.450.0128supportedStructure ↗
PIK3CBAF-M-0.771.5e-36+0.140.5247supportedStructure ↗
LRP8AF-M-0.261.0e-05+2.225.9e-364supportedStructure ↗
RAPGEF6AF-M-0.418.3e-36+0.602.2e-1019supportedStructure ↗
SOS1
H_N_K_Ras_like
AF-M-0.311.7e-35+0.532.4e-0820supportedStructure ↗
RGL2PDB-0.668.0e-35-0.090.03210supportedStructure ↗
EEF1AKMT1AF-M-0.808.2e-35-0.481.1e-097supportedStructure ↗
RRAS2
H_N_K_Ras_like
AF-M-0.801.3e-33+0.100.4448supportedStructure ↗
BRAFPDB-0.725.3e-33+0.270.1607supportedStructure ↗
EIF2S2AF-M-0.736.3e-33+0.180.4036supportedStructure ↗
RASGEF1CAF-M-0.309.5e-33+0.791.9e-2018supportedStructure ↗
RASGEF1AAF-M-0.395.4e-28+1.123.6e-3214supportedStructure ↗
SIPA1L1
H_N_K_Ras_like #3
AF-M-0.507.1e-32+0.411.9e-0415supportedStructure ↗
NRASAF-M-0.677.4e-32+0.180.44010supportedStructure ↗
MAPKAP1
H_N_K_Ras_like
PDB-0.617.8e-32+0.488.7e-0610supportedStructure ↗
TIAM1AF-M-0.401.3e-31+1.002.2e-1812supportedStructure ↗
MAD2L1
H_N_K_Ras_like
AF-M-0.321.7e-04+1.252.1e-319supportedStructure ↗
NRXN3AF-M-0.836.7e-31-0.050.0467supportedStructure ↗
CRAFPDB-0.718.5e-31+0.290.0227supportedStructure ↗
KRAS
H_N_K_Ras_like #3
PDB-0.728.8e-31+0.160.5246supportedStructure ↗
ADGRG1AF-M-0.311.4e-11+1.229.5e-318supportedStructure ↗
DAB2IPAF-M-0.771.3e-30+0.310.09510supportedStructure ↗
ITSN1AF-M-0.384.6e-30+0.751.4e-079supportedStructure ↗
TAOK3AF-M-0.424.0e-12+1.418.1e-307supportedStructure ↗
HRASAF-M-0.659.2e-30+0.120.56112supportedStructure ↗
EXOC1AF-M-0.621.9e-29+0.681.0e-078supportedStructure ↗
NME6
H_N_K_Ras_like #2
AF-M-0.269.8e-18+1.293.8e-2910supportedStructure ↗
YKT6AF-M-0.246.8e-14+1.468.7e-298supportedStructure ↗
RAP2CAF-M-0.641.3e-28+0.210.40312supportedStructure ↗
MCF2LAF-M-0.362.2e-27+1.002.8e-1611supportedStructure ↗
CRAFAF-M-0.514.1e-27+0.040.19515supportedStructure ↗
RAPH1AF-M-0.664.9e-27+0.260.1047supportedStructure ↗
MAPKAP1AF-M-0.496.7e-27+1.081.7e-2212supportedStructure ↗
ATP5F1AAF-M-0.586.7e-27+0.923.5e-1712supportedStructure ↗
PIK3CAAF-M-0.588.4e-26+0.230.09910supportedStructure ↗
PTPN14RF2-PPI-0.601.3e-25+0.040.72311supportedStructure ↗
UTP6AF-M-0.313.5e-10+1.121.3e-2511supportedStructure ↗
ARAFAF-M-0.502.1e-25+0.070.43715supportedStructure ↗
BRAFAF-M-0.534.3e-25+0.070.88012supportedStructure ↗
KIF11AF-M-0.757.7e-25-0.215.4e-047supportedStructure ↗
USE1AF-M-0.384.9e-10+1.529.0e-255supportedStructure ↗
RASGRF2AF-M-0.131.0e-24+0.300.00622supportedStructure ↗
RAP1AAF-M-0.601.0e-24+0.140.21311supportedStructure ↗
NME6
H_N_K_Ras_like
AF-M-0.801.4e-24+1.154.6e-126supportedStructure ↗
RASAL2AF-M-0.043.7e-24+0.350.02410supportedStructure ↗
NPM1AF-M-0.627.8e-24+0.881.1e-1410supportedStructure ↗
LZTR1PDB-0.248.1e-24+0.624.7e-1113supportedStructure ↗
PTPN1
H_N_K_Ras_like
AF-M-0.385.2e-23+0.350.01810supportedStructure ↗
YWHAERF2-PPI-0.889.0e-23+0.894.8e-075supportedStructure ↗
RASGRF1AF-M-0.002.5e-22+0.414.6e-0621supportedStructure ↗
WBP4AF-M-0.564.2e-22+0.160.2788supportedStructure ↗
RALGPS2AF-M+0.094.7e-21+0.478.0e-0617supportedStructure ↗
TRIO
H_N_K_Ras_like
AF-M-0.172.8e-17+1.069.2e-2110supportedStructure ↗
C2orf72
H_N_K_Ras_like
AF-M-0.501.6e-13+1.573.0e-204supportedStructure ↗
FGD6AF-M-0.323.4e-20+0.684.9e-068supportedStructure ↗
FGD1AF-M-0.221.1e-19+0.832.8e-1110supportedStructure ↗
RGL2AF-M+0.086.3e-19+0.290.01226supportedStructure ↗
PLAAT3PDB+1.301.3e-08-0.811.9e-189supportedStructure ↗
OSBPL10
H_N_K_Ras_like #2
AF-M-0.632.1e-18+0.631.2e-066supportedStructure ↗
ARHGAP39
H_N_K_Ras_like #2
AF-M-0.611.5e-13+1.532.4e-184supportedStructure ↗
RALGDSAF-M+0.147.1e-18+0.370.00324supportedStructure ↗
SGSM2AF-M-0.061.8e-17+0.583.6e-0813supportedStructure ↗
C2orf72
H_N_K_Ras_like #2
AF-M-0.003.0e-06+0.951.9e-179supportedStructure ↗
ARHGDIAAF-M-0.271.6e-12+0.983.3e-179supportedStructure ↗
TBC1D10BAF-M+0.117.7e-17+0.513.2e-0515supportedStructure ↗
SLC4A2RF2-PPI-0.979.0e-17-0.520.0033supportedStructure ↗
TBC1D10AAF-M+0.151.1e-16+0.686.9e-0814supportedStructure ↗
RASGRP4AF-M+0.181.7e-14+0.300.03123supportedStructure ↗
TBC1D5AF-M-0.143.4e-14+0.677.9e-0511supportedStructure ↗
ATP5F1B
H_N_K_Ras_like
AF-M-0.471.1e-13-0.040.0066supportedStructure ↗
SOS1PDB+0.152.7e-13+0.463.3e-0722supportedStructure ↗
OSBPL10
H_N_K_Ras_like
AF-M-0.472.7e-13+0.390.0114supportedStructure ↗
RASGRP1AF-M+0.225.7e-12+0.300.02723supportedStructure ↗
RGL1AF-M+0.171.0e-11+0.260.02821supportedStructure ↗
RBM12AF-M-0.242.0e-11+0.362.9e-0414supportedStructure ↗
ZDHHC5AF-M-0.446.8e-11-0.361.2e-045supportedStructure ↗
RASGRP3AF-M+0.283.2e-10+0.320.01521supportedStructure ↗
SIPA1L2AF-M+0.453.5e-10+0.250.18514supportedStructure ↗
ARHGAP32AF-M-0.065.4e-10+0.631.1e-068supportedStructure ↗
KRAS
H_N_K_Ras_like
PDB+0.186.1e-10-0.080.2347supportedStructure ↗
ARHGAP31AF-M-0.161.3e-06+0.702.1e-099supportedStructure ↗
PPIAPDB-0.393.1e-09+0.090.0234supportedStructure ↗
SIPA1L1
H_N_K_Ras_like
AF-M-0.606.6e-09+0.010.4324supportedStructure ↗
RASA1AF-M+0.235.3e-08-0.160.00615supportedStructure ↗
KRAS
H_N_K_Ras_like #2
PDB-0.558.2e-08-0.170.0934supportedStructure ↗
PLXNA1AF-M+0.398.9e-06-0.329.4e-0814supportedStructure ↗
ATP5F1B
H_N_K_Ras_like #2
AF-M-0.407.9e-07+0.040.7123supportedStructure ↗
PLXNC1AF-M+0.261.3e-06-0.100.00520supportedStructure ↗
SIPA1L1
H_N_K_Ras_like #2
AF-M+0.452.6e-06+0.220.32714supportedStructure ↗
PLXNB2AF-M+0.392.6e-05-0.080.01716supportedStructure ↗
FAM91A1AF-M+1.150.021+0.623.6e-057supportedStructure ↗
PLXNA2AF-M+0.434.0e-04-0.241.5e-0415supportedStructure ↗
CHN1AF-M+0.901.7e-04-0.319.9e-046supportedStructure ↗
CHERPAF-M-0.401.9e-04-0.030.0964supportedStructure ↗
NF1AF-M+0.552.3e-04+0.030.35812supportedStructure ↗
ARHGAP21AF-M+0.892.4e-04+0.018.6e-0411supportedStructure ↗
IQGAP1AF-M+0.534.2e-04+0.270.0989supportedStructure ↗
MAD2L1
res 2-184
AF-M-0.160.176+0.386.0e-048supportedStructure ↗
TRIO
H_N_K_Ras_like #2
AF-M+0.980.159-0.267.5e-046supportedStructure ↗
PPP1CAPDB-0.349.3e-04-0.220.0204supportedStructure ↗
RRAS2
H_N_K_Ras_like #2
AF-M-0.030.008-0.260.0018supportedStructure ↗
RALGAPA2AF-M+0.440.003-0.040.43310supportedStructure ↗
USP6NLAF-M+0.610.022+0.110.20610supportedStructure ↗
ARHGAP39
H_N_K_Ras_like
AF-M+0.590.055+0.260.0548supportedStructure ↗
RGL3AF-M+0.072.5e-19+0.230.23623not supportedStructure ↗
MAPKAP1
H_N_K_Ras_like #2
PDB-0.300.110-0.170.0694not supportedStructure ↗
RALGAPA1AF-M+0.690.218+0.050.6187not supportedStructure ↗