8ic0

Cryo-EM structure of CXCL8 bound C-X-C chemokine receptor 1 in complex with Gi heterotrimer

Method: ELECTRON MICROSCOPY Dmax: 142.3 Å Quality: GOOD

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

C-X-C chemokine receptor type 1

Homo sapiens

UniProt P25024

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 1–350 Not recorded Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) scFv16 × 1 Interleukin-8 × 1 (P10145) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;50 mM HEPES pH8.0, 100 mM NaCl, 1 mM MgCl2, 0.5 mM TCEP, 0.001% LMNG, 0.0001% CHS, 1 uM IL8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.41 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

4 other PDB entries and 4 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CXCR1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–350; UniProt 1–350

Guanine nucleotide-binding protein G(i) subunit alpha-1

Homo sapiens

UniProt P63096

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain B; UniProt 1–354 Not recorded C-X-C chemokine receptor type 1 × 1 (P25024) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) scFv16 × 1 Interleukin-8 × 1 (P10145) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;50 mM HEPES pH8.0, 100 mM NaCl, 1 mM MgCl2, 0.5 mM TCEP, 0.001% LMNG, 0.0001% CHS, 1 uM IL8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.41 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

573 other PDB entries and 591 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GNAI1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–354; UniProt 1–354

Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

Homo sapiens

UniProt P62873

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain C; UniProt 2–340 Not recorded C-X-C chemokine receptor type 1 × 1 (P25024) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) scFv16 × 1 Interleukin-8 × 1 (P10145) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;50 mM HEPES pH8.0, 100 mM NaCl, 1 mM MgCl2, 0.5 mM TCEP, 0.001% LMNG, 0.0001% CHS, 1 uM IL8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.41 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

1260 other PDB entries and 1263 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBB1_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 7–345; UniProt 2–340

Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

Homo sapiens

UniProt P59768

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain D; UniProt 1–71 Not recorded C-X-C chemokine receptor type 1 × 1 (P25024) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) scFv16 × 1 Interleukin-8 × 1 (P10145) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;50 mM HEPES pH8.0, 100 mM NaCl, 1 mM MgCl2, 0.5 mM TCEP, 0.001% LMNG, 0.0001% CHS, 1 uM IL8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.41 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

1233 other PDB entries and 1236 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBG2_HUMAN
Isoform
PDB entities 4
Chains and sequence ranges Author chain D; PDBConstruct 1–71; UniProt 1–71

Interleukin-8

Homo sapiens

UniProt P10145

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain F; UniProt 28–99 Not recorded C-X-C chemokine receptor type 1 × 1 (P25024) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P62873) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P59768) scFv16 × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;50 mM HEPES pH8.0, 100 mM NaCl, 1 mM MgCl2, 0.5 mM TCEP, 0.001% LMNG, 0.0001% CHS, 1 uM IL8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.41 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

21 other PDB entries and 23 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IL8_HUMAN
Isoform
PDB entities 6
Chains and sequence ranges Author chain F; PDBConstruct 1–72; UniProt 28–99

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.

SAXS scattering curve SAXS Profile

SAXS profile for 8ic0

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8ic0
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8ic0
Deposition date deposition_date2023-02-10
Structure title titleCryo-EM structure of CXCL8 bound C-X-C chemokine receptor 1 in complex with Gi heterotrimer
Keywords keywordsGPCR, Chemokine, Interleukin, CXCR, MEMBRANE PROTEIN, MEMBRANE PROTEIN-IMMUNE SYSTEM complex; MEMBRANE PROTEIN/IMMUNE SYSTEM
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier41.28
Radius of gyration Rg (electron density) rg_electron41.34
Forward intensity I(0) i0272011000.00
Molecular weight molecular_weight136010.0 kDa
Excluded volume excluded_volume171010 ų
Envelope volume envelope_volume232010 ų
Hydration-shell volume shell_volume49296 ų
Envelope diameter envelope_diameter151.4
Shell Rg shell_rg43.55
Envelope Rg envelope_rg41.73
Shape Rg shape_rg41.32
Total Rg total_rg41.52
Total atoms total_atoms9553
Residues n_residues1228
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax142.3
Rg (real space) rg_real41.47
Rg uncertainty (real space) rg_real_error1.61
I(0) (real space) i0_real2.7200e+08
I(0) uncertainty (real space) i0_real_error5.2430e+06
Rg (reciprocal space) rg_reciprocal41.29
I(0) (reciprocal space) i0_reciprocal272000000.0000
Solution quality estimate total_estimate0.8638
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary48.7
Skewness Skewness skewness0.444
Kurtosis Kurtosis kurtosis-0.281
Angular range angular_range— – 0.1900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha34610000.0000
Real-space data points n_real_points39
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.842; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.942; Smooth: 0.756

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id8ic0A01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1070 — Rhopdopsin 7-helix transmembrane proteins
Homologous superfamily homologous superfamily10 — Rhodopsin 7-helix transmembrane proteins
Domain ID domain_id8ic0C01
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id8ic0E01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)