SAXSdb — 6c7i

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

;cGMP-dependent 3',5'-cyclic phosphodiesterase ;

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	1-(2-chloro-5-methoxyphenyl)-4-methyl-N-(2-methylpropyl)[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide × 1 ZINC ION × 1 MAGNESIUM ION × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	1-(2-chloro-5-methoxyphenyl)-4-methyl-N-(2-methylpropyl)[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide × 1 ZINC ION × 1 MAGNESIUM ION × 1 water × 1	Consistent with protein count
3	Protein monomer	Monomer	Protein 1	1-(2-chloro-5-methoxyphenyl)-4-methyl-N-(2-methylpropyl)[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide × 1 ZINC ION × 1 MAGNESIUM ION × 1 water × 1	Consistent with protein count
4	Protein monomer	Monomer	Protein 1	1-(2-chloro-5-methoxyphenyl)-4-methyl-N-(2-methylpropyl)[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide × 1 ZINC ION × 1 MAGNESIUM ION × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PDE2A_HUMAN
Isoform	O00408-5
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–342； UniProt 323–661 Author chain B； PDBConstruct 4–342； UniProt 323–661 Author chain C； PDBConstruct 4–342； UniProt 323–661 Author chain D； PDBConstruct 4–342； UniProt 323–661

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	6c7i
Deposition date deposition_date	2018-01-22
Structure title title	Crystal structure of human phosphodiesterase 2A with 1-(2-chloro-5-methoxy-phenyl)-N-isobutyl-4-methyl-[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide
Keywords keywords	phosphodiesterase, HYDROLASE; HYDROLASE
Experimental Method method	X-RAY DIFFRACTION

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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.

6c7i__assembly_1__model_1

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

Download this curve (.dat)

6c7i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6c7i__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.85 Å
Rg (electron density)	20.79 Å
Total Rg	21.61 Å
Atom count	2826
Residues	342
Excluded volume	50314 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6c7i__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`6c7i__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`6c7i__assembly_3__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`6c7i__assembly_4__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Description description	;cGMP-dependent 3',5'-cyclic phosphodiesterase ;
Molecular weight formula_weight	39909.8 kDa
EC 编号 ec_number	3.1.4.17
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	12195

SAMDDEYTKLLHDGIQPVAAIDSNFASFTYTPRSLPEDDTSMAILSMLQDMNFINNYKIDCPTLARFCLMVKKGYRDPPYHNWMHAFSVSHFCYLLYKNLELTNYLEDIEIFALFISCMCHDLDHRGTNNSFQVASKSVLAALYSSEGSVMERHHFAQAIAILNTHGCNIFDHFSRKDYQRMLDLMRDIILATDLAHHLRIFKDLQKMAEVGYDRNNKQHHRLLLCLLMTSCDLSDQTKGWKTTRKIAELIYKEFFSQGDLEKAMGNRPMEMMDREKAYIPELQISFMEHIAMPIYKLLQDLFPKAAELYERVASNREHWTKVSHKFTIRGLPSNNSLDFLD

Source Source

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Spodoptera frugiperda

Entity 2 Entity 2 non-polymer

Description description	1-(2-chloro-5-methoxyphenyl)-4-methyl-N-(2-methylpropyl)[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide
Molecular weight formula_weight	423.9 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	995

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6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d6c7ia1
Class class	a — All alpha proteins
Fold Fold fold	a.211 — HD-domain/PDEase-like
Superfamily Superfamily superfamily	a.211.1 — HD-domain/PDEase-like
Family Family family	a.211.1.0 — automated matches

Domain ID domain_id	d6c7ia2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d6c7ib1
Class class	a — All alpha proteins
Fold Fold fold	a.211 — HD-domain/PDEase-like
Superfamily Superfamily superfamily	a.211.1 — HD-domain/PDEase-like
Family Family family	a.211.1.0 — automated matches

Domain ID domain_id	d6c7ib2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d6c7ic_
Class class	a — All alpha proteins
Fold Fold fold	a.211 — HD-domain/PDEase-like
Superfamily Superfamily superfamily	a.211.1 — HD-domain/PDEase-like
Family Family family	a.211.1.0 — automated matches

Domain ID domain_id	d6c7id_
Class class	a — All alpha proteins
Fold Fold fold	a.211 — HD-domain/PDEase-like
Superfamily Superfamily superfamily	a.211.1 — HD-domain/PDEase-like
Family Family family	a.211.1.0 — automated matches

CATH v4.4 (4 domains)

Domain ID domain_id	6c7iA00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1300 — Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b
Homologous superfamily homologous superfamily	10 — 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain

Domain ID domain_id	6c7iB00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1300 — Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b
Homologous superfamily homologous superfamily	10 — 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain

Domain ID domain_id	6c7iC00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1300 — Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b
Homologous superfamily homologous superfamily	10 — 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain

Domain ID domain_id	6c7iD00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1300 — Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b
Homologous superfamily homologous superfamily	10 — 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain

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Unit-cell length a length_a	55.902 Å
Unit-cell length b length_b	72.682 Å
Unit-cell length c length_c	90.816 Å
Unit-cell angle α angle_alpha	109.33 °
Unit-cell angle β angle_beta	91.13 °
Unit-cell angle γ angle_gamma	91.06 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	1.713 Å
Low-resolution limit resolution_low	47.395 Å
R factor r_factor	0.1719
R_work r_work	0.1713
R_free r_free	0.2143

Crystal structure of human phosphodiesterase 2A with 1-(2-chloro-5-methoxy-phenyl)-N-isobutyl-4-methyl-[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide

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

;cGMP-dependent 3',5'-cyclic phosphodiesterase ;

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

6c7i__assembly_1__model_1

6c7i__assembly_1__model_1 | I(q)

6c7i__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 (5)

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 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (6 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of human phosphodiesterase 2A with 1-(2-chloro-5-methoxy-phenyl)-N-isobutyl-4-methyl-[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide

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

;cGMP-dependent 3',5'-cyclic phosphodiesterase ;

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

6c7i__assembly_1__model_1

6c7i__assembly_1__model_1 | I(q)

6c7i__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 (5)

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 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (6 domains)

CATH v4.4 (4 domains)

7. Citations (1)