7iog

Crystal structure of A2A in complex with FU99-89

Method: X-RAY DIFFRACTION

▼

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

Adenosine receptor A2a/Soluble cytochrome b562/Adenosine receptor A2a chimera

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Monomer	Protein 1	SODIUM ION × 1 THEOPHYLLINE × 1 CHOLESTEROL × 3 OLEIC ACID × 22 (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate × 7 2-[(5-chloro-1H-1,3-benzimidazol-2-yl)sulfanyl]acetamide × 1 DI(HYDROXYETHYL)ETHER × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C562_ECOLX
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 218–318； UniProt 23–123

Adenosine receptor A2a/Soluble cytochrome b562/Adenosine receptor A2a chimera

Homo sapiens

UniProt P29274

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Monomer	Protein 1	SODIUM ION × 1 THEOPHYLLINE × 1 CHOLESTEROL × 3 OLEIC ACID × 22 (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate × 7 2-[(5-chloro-1H-1,3-benzimidazol-2-yl)sulfanyl]acetamide × 1 DI(HYDROXYETHYL)ETHER × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	AA2AR_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 11–217； UniProt 2–208 Author chain A； PDBConstruct 324–422； UniProt 219–317

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	7iog
Deposition date deposition_date	2025-08-21
Last revision last_revision	2026-05-20
Structure title title	Crystal structure of A2A in complex with FU99-89
Keywords keywords	G-PROTEIN-COUPLED RECEPTOR, INTEGRAL MEMBRANE PROTEIN, CHIMERA, 2 THERMOSTABILIZING MUTATIONS, MEMBRANE PROTEIN; MEMBRANE PROTEIN
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.

7iog__assembly_1__model_1

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

Download this curve (.dat)

7iog__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7iog__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	30.51 Å
Rg (electron density)	29.26 Å
Total Rg	29.77 Å
Atom count	3586
Residues	390
Excluded volume	67960 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7iog__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Description description	Adenosine receptor A2a/Soluble cytochrome b562/Adenosine receptor A2a chimera
Molecular weight formula_weight	48012.7 kDa
Mutation mutation	A54L,T88A,R107A,K122A,N154A,L202A,L235A,V239A
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3739

DYKDDDDGAPPIMGSSVYITVELAIAVLAILGNVLVCWAVWLNSNLQNVTNYFVVSLAAADILVGVLAIPFAITISTGFCAACHGCLFIACFVLVLAQSSIFSLLAIAIDRYIAIAIPLRYNGLVTGTRAAGIIAICWVLSFAIGLTPMLGWNNCGQPKEGKAHSQGCGEGQVACLFEDVVPMNYMVYFNFFACVLVPLLLMLGVYLRIFAAARRQLADLEDNWETLNDNLKVIEKADNAAQVKDALTKMRAAALDAQKATPPKLEDKSPDSPEMKDFRHGFDILVGQIDDALKLANEGKVKEAQAAAEQLKTTRNAYIQKYLERARSTLQKEVHAAKSAAIIAGLFALCWLPLHIINCFTFFCPDCSHAPLWLMYLAIVLSHTNSVVNPFIYAYRIREFRQTFRKIIRSHVLRQQEPFKAAAHHHHHHHHHH

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Trichoplusia ni

Entity 2 Entity 2 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	THEOPHYLLINE
Molecular weight formula_weight	180.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	CHOLESTEROL
Molecular weight formula_weight	386.7 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 5 Entity 5 non-polymer

Description description	OLEIC ACID
Molecular weight formula_weight	282.5 kDa
Source method src_method	syn
Copy count entity_count	22

Entity 6 Entity 6 non-polymer

Description description	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
Molecular weight formula_weight	356.5 kDa
Source method src_method	syn
Copy count entity_count	7

Entity 7 Entity 7 non-polymer

Description description	2-[(5-chloro-1H-1,3-benzimidazol-2-yl)sulfanyl]acetamide
Molecular weight formula_weight	241.7 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 8 Entity 8 non-polymer

Description description	DI(HYDROXYETHYL)ETHER
Molecular weight formula_weight	106.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 9 Entity 9 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	50

▶

Unit-cell length a length_a	39.360 Å
Unit-cell length b length_b	179.424 Å
Unit-cell length c length_c	139.770 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	1.980 Å
Low-resolution limit resolution_low	89.710 Å
R factor r_factor	0.2093
R_work r_work	0.2078
R_free r_free	0.2361

Crystal structure of A2A in complex with FU99-89

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

Adenosine receptor A2a/Soluble cytochrome b562/Adenosine receptor A2a chimera

State in the Current Structure

Other States of the Same Protein in the Database

Adenosine receptor A2a/Soluble cytochrome b562/Adenosine receptor A2a chimera

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

7iog__assembly_1__model_1

7iog__assembly_1__model_1 | I(q)

7iog__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 (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 water

7. Citations (1)

Crystal structure of A2A in complex with FU99-89

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

Adenosine receptor A2a/Soluble cytochrome b562/Adenosine receptor A2a chimera

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Adenosine receptor A2a/Soluble cytochrome b562/Adenosine receptor A2a chimera

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

7iog__assembly_1__model_1

7iog__assembly_1__model_1 | I(q)

7iog__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 (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 water

7. Citations (1)