SAXSdb — 2p0a

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

Synapsin-3

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	CHLORIDE ION × 4 SULFATE ION × 12 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 1,2-ETHANEDIOL × 16 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SYN3_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–344； UniProt 76–417 Author chain B； PDBConstruct 3–344； UniProt 76–417

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	2p0a
Deposition date deposition_date	2007-02-28
Structure title title	The crystal structure of human synapsin III (SYN3) in complex with AMPPNP
Keywords keywords	;synapsin, neurotransmitter release, schizophrenia, vesicle transport, Structural Genomics, Structural Genomics Consortium, SGC, NEUROPEPTIDE ;; NEUROPEPTIDE
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.

2p0a__assembly_1__model_1

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

Download this curve (.dat)

2p0a__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2p0a__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	32.59 Å
Rg (electron density)	31.78 Å
Total Rg	32.38 Å
Atom count	9554
Residues	1192
Excluded volume	170380 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2p0a__assembly_1__model_1`	tetrameric （4）	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 (6)

Entity 1 Entity 1 polymer

Description description	Synapsin-3
Molecular weight formula_weight	38417.3 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	5248

SMGLMEPPGPSTPIVQRPRILLVIDDAHTDWSKYFHGKKVNGEIEIRVEQAEFSELNLAAYVTGGCMVDMQVVRNGTKVVSRSFKPDFILVRQHAYSMALGEDYRSLVIGLQYGGLPAVNSLYSVYNFCSKPWVFSQLIKIFHSLGPEKFPLVEQTFFPNHKPMVTAPHFPVVVKLGHAHAGMGKIKVENQLDFQDITSVVAMAKTYATTEAFIDSKYDIRIQKIGSNYKAYMRTSISGNWKANTGSAMLEQVAMTERYRLWVDSCSEMFGGLDICAVKAVHSKDGRDYIIEVMDSSMPLIGEHVEEDRQLMADLVVSKMSQLPMPGGTAPSPLRPWAPQIKSA

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 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 4 Entity 4 non-polymer

Description description	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
Molecular weight formula_weight	506.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	1,2-ETHANEDIOL
Molecular weight formula_weight	62.1 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	446

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6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2p0aa1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.0 — automated matches

Domain ID domain_id	d2p0aa2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.142 — ATP-grasp
Superfamily Superfamily superfamily	d.142.1 — Glutathione synthetase ATP-binding domain-like
Family Family family	d.142.1.3 — Synapsin C-terminal domain

Domain ID domain_id	d2p0ab1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.0 — automated matches

Domain ID domain_id	d2p0ab2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.142 — ATP-grasp
Superfamily Superfamily superfamily	d.142.1 — Glutathione synthetase ATP-binding domain-like
Family Family family	d.142.1.3 — Synapsin C-terminal domain

CATH v4.4 (6 domains)

Domain ID domain_id	2p0aA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	2p0aA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, B domain

Domain ID domain_id	2p0aA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, A domain

Domain ID domain_id	2p0aB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	2p0aB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, B domain

Domain ID domain_id	2p0aB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, A domain

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Unit-cell length a length_a	130.796 Å
Unit-cell length b length_b	73.186 Å
Unit-cell length c length_c	78.398 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	100.74 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	47.000 Å
R factor r_factor	0.1831
R_work r_work	0.1813
R_free r_free	0.2180

The crystal structure of human synapsin III (SYN3) in complex with AMPPNP

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

Synapsin-3

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

2p0a__assembly_1__model_1

2p0a__assembly_1__model_1 | I(q)

2p0a__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 (6)

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 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

CATH v4.4 (6 domains)

7. Citations (1)

The crystal structure of human synapsin III (SYN3) in complex with AMPPNP

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

Synapsin-3

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

2p0a__assembly_1__model_1

2p0a__assembly_1__model_1 | I(q)

2p0a__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 (6)

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 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

CATH v4.4 (6 domains)

7. Citations (1)