36JS | pdb_000036js

Tri-complex of RMC-0708, KRas Q61H, and CypA

PDB DOI: https://doi.org/10.2210/pdb36JS/pdb

Classification: SIGNALING PROTEIN
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2026-06-14 Released: 2026-11-11
Deposition Author(s): Tomlinson, A.C.A., Chen, A., Yano, J.K.
Funding Organization(s): Not funded

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.75 Å
R-Value Free:
0.242 (Depositor), 0.241 (DCC)
R-Value Work:
0.187 (Depositor), 0.186 (DCC)
R-Value Observed:
0.190 (Depositor)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.0 of the entry. See complete history.

Literature

Discovery of RMC-0708, an Oral, Bis-Macrocyclic, RAS(ON) Q61H-Selective, Noncovalent, Tri-Complex Inhibitor

Thompson, S.K., Yang, Y.C., Lopez Quinones, A.J., Chang, S., McKinley, J.L., Tomlinson, A.C.A., Tooley, A.S., Wei, X., Flagella, M., Buckl, A., Gliedt, M.J., Yin, J., Liu, Y., Chen, A., Montgomery, D.C., Marquez, A., Eilerts, D.F., Probst, J., McNamara, A., Shivakumar, D.M., Wang, Z., Knox, J.E., Wang, Z., Gill, A.L., Koltun, E.S.

(2026) J Med Chem

DOI: https://doi.org/10.1021/acs.jmedchem.6c02019

Macromolecule Content

Total Structure Weight: 78.77 kDa
Atom Count: 6,115
Modeled Residue Count: 667
Deposited Residue Count: 672
Unique protein chains: 2

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Isoform 2B of GTPase KRas	A, B	170	Homo sapiens	Mutation(s): 1 Gene Names: KRAS, KRAS2, RASK2 EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P01116 (Homo sapiens) Go to UniProtKB: P01116
GTEx: ENSG00000133703
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P01116-2
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptidyl-prolyl cis-trans isomerase A	C, D	166	Homo sapiens	Mutation(s): 0 Gene Names: PPIA, CYPA EC: 5.2.1.8
UniProt & NIH Common Fund Data Resources
Find proteins for P62937 (Homo sapiens) Explore P62937 Go to UniProtKB: P62937
GTEx: ENSG00000196262
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P62937
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1DJS (Subject of Investigation/LOI) Query on A1DJS Download:Ideal Coordinates CCD File SDF format, chain O [auth B] SDF format, chain H [auth A] MOL2 format, chain O [auth B] MOL2 format, chain H [auth A] mmCIF format, chain O [auth B] mmCIF format, chain H [auth A]	H [auth A], O [auth B]	(1M,9S,13S,16S,19S,21S,25S,32M)-32-{5-(1-cyclopropylpiperidin-4-yl)-2-[(1S)-1-methoxyethyl]pyridin-3-yl}-15,29,29-trimethyl-10-(3-methyloxetane-3-carbonyl)-16-(propan-2-yl)-33-(2,2,2-trifluoroethyl)-7,27-dioxa-10,15,18,21,33,39-hexaazaheptacyclo[29.5.2.1~2,6~.1~4,19~.1~21,25~.0~9,13~.0~34,38~]hentetraconta-1(36),2(41),3,5,31,34,37-heptaene-14,17,20,26-tetrone (non-preferred name) C₆₂ H₇₉ F₃ N₈ O₉ PQLCJKAFQBWNID-AGMSUWQGSA-N		Interactions Focus chain H [auth A] Focus chain O [auth B] Interactions & Density Focus chain H [auth A] Focus chain O [auth B]
GNP Query on GNP Download:Ideal Coordinates CCD File SDF format, chain K [auth B] SDF format, chain E [auth A] MOL2 format, chain K [auth B] MOL2 format, chain E [auth A] mmCIF format, chain K [auth B] mmCIF format, chain E [auth A]	E [auth A], K [auth B]	PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER C₁₀ H₁₇ N₆ O₁₃ P₃ UQABYHGXWYXDTK-UUOKFMHZSA-N		Interactions Focus chain E [auth A] Focus chain K [auth B] Interactions & Density Focus chain E [auth A] Focus chain K [auth B]
GOL Query on GOL Download:Ideal Coordinates CCD File SDF format, chain N [auth B] SDF format, chain M [auth B] SDF format, chain G [auth A] MOL2 format, chain N [auth B] MOL2 format, chain M [auth B] MOL2 format, chain G [auth A] mmCIF format, chain N [auth B] mmCIF format, chain M [auth B] mmCIF format, chain G [auth A]	G [auth A], M [auth B], N [auth B]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Focus chain M [auth B] Focus chain N [auth B] Interactions & Density Focus chain G [auth A] Focus chain M [auth B] Focus chain N [auth B]
CL Query on CL Download:Ideal Coordinates CCD File SDF format, chain Q [auth B] SDF format, chain P [auth B] SDF format, chain J [auth A] SDF format, chain I [auth A] MOL2 format, chain Q [auth B] MOL2 format, chain P [auth B] MOL2 format, chain J [auth A] MOL2 format, chain I [auth A] mmCIF format, chain Q [auth B] mmCIF format, chain P [auth B] mmCIF format, chain J [auth A] mmCIF format, chain I [auth A]	I [auth A], J [auth A], P [auth B], Q [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain I [auth A] Focus chain J [auth A] Focus chain P [auth B] Focus chain Q [auth B] Interactions & Density Focus chain I [auth A] Focus chain J [auth A] Focus chain P [auth B] Focus chain Q [auth B]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain L [auth B] SDF format, chain F [auth A] MOL2 format, chain L [auth B] MOL2 format, chain F [auth A] mmCIF format, chain L [auth B] mmCIF format, chain F [auth A]	F [auth A], L [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain F [auth A] Focus chain L [auth B] Interactions & Density Focus chain F [auth A] Focus chain L [auth B]