9rkc

Crystal Structure of ACBI4-mediated ternary complex of KRAS G12D C118S GDP with pVHL:ElonginC:ElonginB

Method: X-RAY DIFFRACTION

▼

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

Elongin-B

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Elongin-C × 1 （Q15369） von Hippel-Lindau disease tumor suppressor × 1 （P40337） GTPase KRas × 1 （P01116） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Elongin-C × 1 （Q15369） von Hippel-Lindau disease tumor suppressor × 1 （P40337） GTPase KRas × 1 （P01116） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ELOB_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–104； UniProt 1–104 Author chain E； PDBConstruct 1–104； UniProt 1–104

Elongin-C

Homo sapiens

UniProt Q15369

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Elongin-B × 1 （Q15370） von Hippel-Lindau disease tumor suppressor × 1 （P40337） GTPase KRas × 1 （P01116） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Elongin-B × 1 （Q15370） von Hippel-Lindau disease tumor suppressor × 1 （P40337） GTPase KRas × 1 （P01116） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ELOC_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 2–97； UniProt 17–112 Author chain F； PDBConstruct 2–97； UniProt 17–112

von Hippel-Lindau disease tumor suppressor

Homo sapiens

UniProt P40337

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Elongin-B × 1 （Q15370） Elongin-C × 1 （Q15369） GTPase KRas × 1 （P01116） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Elongin-B × 1 （Q15370） Elongin-C × 1 （Q15369） GTPase KRas × 1 （P01116） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	VHL_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 3–162； UniProt 54–213 Author chain G； PDBConstruct 3–162； UniProt 54–213

GTPase KRas

Homo sapiens

UniProt P01116

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Elongin-B × 1 （Q15370） Elongin-C × 1 （Q15369） von Hippel-Lindau disease tumor suppressor × 1 （P40337） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Elongin-B × 1 （Q15370） Elongin-C × 1 （Q15369） von Hippel-Lindau disease tumor suppressor × 1 （P40337） ;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ; × 1 GUANOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RASK_HUMAN
Isoform	P01116-2
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 2–170； UniProt 1–169 Author chain H； PDBConstruct 2–170； UniProt 1–169

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	9rkc
Deposition date deposition_date	2025-06-13
Structure title title	Crystal Structure of ACBI4-mediated ternary complex of KRAS G12D C118S GDP with pVHL:ElonginC:ElonginB
Keywords keywords	KRAS, TPD, PROTAC, VHL, ternary complex, ONCOPROTEIN; ONCOPROTEIN
Experimental Method method	X-RAY DIFFRACTION

▼

3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

9rkc__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

9rkc__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9rkc__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	31.95 Å
Rg (electron density)	31.92 Å
Total Rg	32.41 Å
Atom count	4051
Residues	500
Excluded volume	71733 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9rkc__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`9rkc__assembly_2__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (8)

Entity 1 Entity 1 polymer

Description description	Elongin-B
Molecular weight formula_weight	11748.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,E
Atom count atom_count	8044

MDVFLMIRRHKTTIFTDAKESSTVFELKRIVEGILKRPPDEQRLYKDDQLLDDGKTLGECGFTSQTARPQAPATVGLAFRADDTFEALCIEPFSSPPELPDVMK

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Elongin-C
Molecular weight formula_weight	10974.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,F

MMYVKLISSDGHEFIVKREHALTSGTIKAMLSGPGQFAENETNEVNFREIPSHVLSKVCMYFTYKVRYTNSSTEIPEFPIAPEIALELLMAANFLDC

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 polymer

Description description	von Hippel-Lindau disease tumor suppressor
Molecular weight formula_weight	18702.3 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,G

GSMEAGRPRPVLRSVNSREPSQVIFCNRSPRVVLPVWLNFDGEPQPYPTLPPGTGRRIHSYRGHLWLFRDAGTHDGLLVNQTELFVPSLNVDGQPIFANITLPVYTLKERCLQVVRSLVKPENYRRLDIVRSLYEDLEDHPNVQKDLERLTQERIAHQRMGD

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 4 Entity 4 polymer

Description description	GTPase KRas
Molecular weight formula_weight	19370.8 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D,H

GMTEYKLVVVGADGVGKSALTIQLIQNHFVDEYDPTIEDSYRKQVVIDGETCLLDILDTAGQEEYSAMRDQYMRTGEGFLCVFAINNTKSFEDIHHYREQIKRVKDSEDVPMVLVGNKSDLPSRTVDTKQAQDLARSYGIPFIETSAKTRQGVDDAFYTLVREIRKHKEK

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 5 Entity 5 non-polymer

Description description	;(2~{S},4~{R})-1-[(2~{S})-2-[(5~{S})-5-[3-[(3~{S})-4-[4-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]propyl]-4,5,6,7-tetrahydrobenzotriazol-1-yl]-3-methyl-butanoyl]-~{N}-[(1-methylindazol-6-yl)methyl]-4-oxidanyl-pyrrolidine-2-carboxamide ;
Molecular weight formula_weight	970.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 6 Entity 6 non-polymer

Description description	GUANOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	443.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 7 Entity 7 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 8 Entity 8 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	48

▶

Unit-cell length a length_a	71.915 Å
Unit-cell length b length_b	106.467 Å
Unit-cell length c length_c	82.742 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	108.67 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	monoclinic

Resolution resolution	2.190 Å
Low-resolution limit resolution_low	44.810 Å
R factor r_factor	0.2336
R_work r_work	0.2323
R_free r_free	0.2745

Crystal Structure of ACBI4-mediated ternary complex of KRAS G12D C118S GDP with pVHL:ElonginC:ElonginB

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

Elongin-B

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Elongin-C

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

von Hippel-Lindau disease tumor suppressor

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

GTPase KRas

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

9rkc__assembly_1__model_1

9rkc__assembly_1__model_1 | I(q)

9rkc__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 water

7. Citations (1)