1xv2

Crystal Structure of a Protein of Unknown Function Similar to Alpha-acetolactate Decarboxylase from Staphylococcus aureus

Method: X-RAY DIFFRACTION

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

hypothetical protein, similar to alpha-acetolactate decarboxylase

Staphylococcus aureus subsp. aureus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	ZINC ION × 2 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	ZINC ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q7A3A7_STAAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–237； UniProt 1–234 Author chain B； PDBConstruct 4–237； UniProt 1–234 Author chain C； PDBConstruct 4–237； UniProt 1–234 Author chain D； PDBConstruct 4–237； UniProt 1–234

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	1xv2
Deposition date deposition_date	2004-10-26
Structure title title	Crystal Structure of a Protein of Unknown Function Similar to Alpha-acetolactate Decarboxylase from Staphylococcus aureus
Keywords keywords	;alpha-acetolactate, Staphylococcus aureus, structural genomics, MCSG, Midwest Center for Structural Genomics, PSI, Protein Structure Initiative, UNKNOWN FUNCTION ;; STRUCTURAL GENOMICS, UNKNOWN FUNCTION
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.

1xv2__assembly_1__model_1

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

Download this curve (.dat)

1xv2__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1xv2__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.68 Å
Rg (electron density)	23.72 Å
Total Rg	24.54 Å
Atom count	3702
Residues	454
Excluded volume	65584 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1xv2__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1xv2__assembly_2__model_1`	dimeric （2）	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 (3)

Entity 1 Entity 1 polymer

Description description	hypothetical protein, similar to alpha-acetolactate decarboxylase
Molecular weight formula_weight	26992.3 kDa
EC 编号 ec_number	4.1.1.5
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	8068

SNAMTNVLYQHGTLGTLMAGLLEGTATINELLEHGNLGIATLTGSDGEVIFLDGKAYHANEHKEFIELKGDEKVPYASITNFKASKTFPLQQLSQDDVFAQIKNEMLSENLFSAVKIYGTFKHMHVRMMPAQQPPYTRLIDSARRQPEEKRQDIRGAIVGFFTPELFHGVGSAGFHIHFADDERAYGGHVLDFEVDDVVVEIQNFETFQQHFPVNNETFVKAKIDYKDVAEEIREAE

Source Source

Source organism organism	Staphylococcus aureus subsp. aureus
NCBI taxonomy ID ncbi_taxonomy_id	46170
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

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

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	657

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1xv2a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.290 — AF0104/ALDC/Ptd012-like
Superfamily Superfamily superfamily	d.290.1 — AF0104/ALDC/Ptd012-like
Family Family family	d.290.1.1 — Alpha-acetolactate decarboxylase-like

Domain ID domain_id	d1xv2b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.290 — AF0104/ALDC/Ptd012-like
Superfamily Superfamily superfamily	d.290.1 — AF0104/ALDC/Ptd012-like
Family Family family	d.290.1.1 — Alpha-acetolactate decarboxylase-like

Domain ID domain_id	d1xv2c_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.290 — AF0104/ALDC/Ptd012-like
Superfamily Superfamily superfamily	d.290.1 — AF0104/ALDC/Ptd012-like
Family Family family	d.290.1.1 — Alpha-acetolactate decarboxylase-like

Domain ID domain_id	d1xv2d_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.290 — AF0104/ALDC/Ptd012-like
Superfamily Superfamily superfamily	d.290.1 — AF0104/ALDC/Ptd012-like
Family Family family	d.290.1.1 — Alpha-acetolactate decarboxylase-like

CATH v4.4 (8 domains)

Domain ID domain_id	1xv2A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

Domain ID domain_id	1xv2A02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

Domain ID domain_id	1xv2B01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

Domain ID domain_id	1xv2B02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

Domain ID domain_id	1xv2C01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

Domain ID domain_id	1xv2C02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

Domain ID domain_id	1xv2D01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

Domain ID domain_id	1xv2D02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	80 — Hypothetical protein, similar to alpha- acetolactate decarboxylase; domain 2

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Unit-cell length a length_a	48.434 Å
Unit-cell length b length_b	160.005 Å
Unit-cell length c length_c	68.056 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	107.55 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

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

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	30.240 Å
R factor r_factor	0.1910
R_work r_work	0.1910
R_free r_free	0.2360

Crystal Structure of a Protein of Unknown Function Similar to Alpha-acetolactate Decarboxylase from Staphylococcus aureus

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

hypothetical protein, similar to alpha-acetolactate decarboxylase

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

1xv2__assembly_1__model_1

1xv2__assembly_1__model_1 | I(q)

1xv2__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

7. Citations (1)

Crystal Structure of a Protein of Unknown Function Similar to Alpha-acetolactate Decarboxylase from Staphylococcus aureus

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

hypothetical protein, similar to alpha-acetolactate decarboxylase

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

1xv2__assembly_1__model_1

1xv2__assembly_1__model_1 | I(q)

1xv2__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

7. Citations (1)