SAXSdb — 2ya2

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

PUTATIVE ALKALINE AMYLOPULLULANASE

STREPTOCOCCUS PNEUMONIAE

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Monomer	Protein 1 其他Polymer 1	alpha-D-glucopyranose-(1-4)-1-DEOXYNOJIRIMYCIN × 1 CALCIUM ION × 1 SODIUM ION × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q97SQ7_STRPN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–708； UniProt 436–1143

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	2ya2
Deposition date deposition_date	2011-02-17
Structure title title	Catalytic Module of the Multi-modular glycogen-degrading pneumococcal virulence factor SpuA in complex with an inhibitor.
Keywords keywords	HYDROLASE, GLYCOSIDE 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.

2ya2__assembly_1__model_1

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

Download this curve (.dat)

2ya2__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2ya2__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.73 Å
Rg (electron density)	26.85 Å
Total Rg	27.70 Å
Atom count	5660
Residues	708
Excluded volume	100010 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2ya2__assembly_1__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	PUTATIVE ALKALINE AMYLOPULLULANASE
Molecular weight formula_weight	79845.1 kDa
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	5866

TSWRLKDETYSYDGKLGADLKEEGKQVDLTLWSPSADKVSVVVYDKNDPDKVVGTVALEKGERGTWKQTLDSTNKLGITDFTGYYYQYQIERQGKTVLALDPYAKSLAAWNSDDSKIDDAHKVAKAAFVDPAKLGPQDLTYGKIHNFKTREDAVIYEAHVRDFTSDPAIAKDLTKPFGTFEAFIEKLDYLKDLGVTHIQLLPVLSYYFVNELKNHERLSDYASSNSNYNWGYDPQNYFSLTGMYSSDPKNPEKRIAEFKNLINEIHKRGMGAILDVVYNHTAKVDLFEDLEPNYYHFMDADGTPRTSFGGGRLGTTHHMTKRLLIDSIKYLVDTYKVDGFRFDMMGDHDAASIEEAYKAARALNPNLIMLGEGWRTYAGDENMPTKAADQDWMKHTDTVAVFSDDIRNNLKSGYPNEGQPAFITGGKRDVNTIFKNLIAQPTNFEADSPGDVIQYIAAHDDLTLFDIIAQSIKKDPSKAENYAEIHRRLRLGNLMVLTAQGTPFIHSGQEYGRTKQFRNPAYRTPVAEDKVPNKSHLLRDKDGNPFDYPYFIHDSYDSSDAVNKFDWTKATDGKAYPENVKSRDYMKGLIALRQSTDAFRLKSLQDIKDRVHLITVPGQNGVEKEDVVIGYQITAPNGDIYAVFVNADEKAREFNLGTAFAHLRNAEVLADENQAGPVGIANPKGLEWTEKGLKLNALTATVLRVSQN

Source Source

Source organism organism	STREPTOCOCCUS PNEUMONIAE
NCBI taxonomy ID ncbi_taxonomy_id	170187
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 branched

Description description	alpha-D-glucopyranose-(1-4)-1-DEOXYNOJIRIMYCIN
Molecular weight formula_weight	325.3 kDa
Source method src_method	man
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

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

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	206

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6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id	2ya2A01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	2ya2A02
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	80 — Glycosidases

Domain ID domain_id	2ya2A03
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	1180 — Golgi alpha-mannosidase II

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Unit-cell length a length_a	57.779 Å
Unit-cell length b length_b	75.803 Å
Unit-cell length c length_c	88.089 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	97.72 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	2

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

Resolution resolution	2.370 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2110
R_work r_work	0.2083
R_free r_free	0.2595

Catalytic Module of the Multi-modular glycogen-degrading pneumococcal virulence factor SpuA in complex with an inhibitor.

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

PUTATIVE ALKALINE AMYLOPULLULANASE

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

2ya2__assembly_1__model_1

2ya2__assembly_1__model_1 | I(q)

2ya2__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 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

7. Citations (1)

Catalytic Module of the Multi-modular glycogen-degrading pneumococcal virulence factor SpuA in complex with an inhibitor.

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

PUTATIVE ALKALINE AMYLOPULLULANASE

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

2ya2__assembly_1__model_1

2ya2__assembly_1__model_1 | I(q)

2ya2__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 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

7. Citations (1)