2a2l

Crystal structure of Klebsiella pneumoniae protein ORFY, Pfam DUF336

Method: X-RAY DIFFRACTION

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

unknown

Klebsiella pneumoniae

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 8	water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q48422_KLEPN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–144； UniProt 1–143 Author chain B； PDBConstruct 2–144； UniProt 1–143 Author chain C； PDBConstruct 2–144； UniProt 1–143 Author chain D； PDBConstruct 2–144； UniProt 1–143

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	2a2l
Deposition date deposition_date	2005-06-22
Structure title title	Crystal structure of Klebsiella pneumoniae protein ORFY, Pfam DUF336
Keywords keywords	;UNKNOWN, STRUCTURAL GENOMICS, PSI, PROTEIN STRUCTURE INITIATIVE, New York SGX Research Center for Structural Genomics, NYSGXRC, 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.

2a2l__assembly_1__model_1

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

Download this curve (.dat)

2a2l__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2a2l__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.91 Å
Rg (electron density)	28.83 Å
Total Rg	29.77 Å
Atom count	8528
Residues	1152
Excluded volume	152180 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2a2l__assembly_1__model_1`	octameric （8）	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 (2)

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6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (10 domains)

Domain ID domain_id	d2a2la1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.110 — Profilin-like
Superfamily Superfamily superfamily	d.110.9 — GlcG-like
Family Family family	d.110.9.1 — GlcG-like

Domain ID domain_id	d2a2la2
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	d2a2la3
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	d2a2lb2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.110 — Profilin-like
Superfamily Superfamily superfamily	d.110.9 — GlcG-like
Family Family family	d.110.9.1 — GlcG-like

Domain ID domain_id	d2a2lb3
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	d2a2lb4
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	d2a2lc2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.110 — Profilin-like
Superfamily Superfamily superfamily	d.110.9 — GlcG-like
Family Family family	d.110.9.1 — GlcG-like

Domain ID domain_id	d2a2lc3
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	d2a2ld2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.110 — Profilin-like
Superfamily Superfamily superfamily	d.110.9 — GlcG-like
Family Family family	d.110.9.1 — GlcG-like

Domain ID domain_id	d2a2ld3
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

CATH v4.4 (4 domains)

Domain ID domain_id	2a2lA00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	150 — Haem-degrading domain

Domain ID domain_id	2a2lB00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	150 — Haem-degrading domain

Domain ID domain_id	2a2lC00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	150 — Haem-degrading domain

Domain ID domain_id	2a2lD00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	150 — Haem-degrading domain

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Unit-cell length a length_a	80.490 Å
Unit-cell length b length_b	80.490 Å
Unit-cell length c length_c	207.050 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	32

Space group space_group	P 42 21 2
Space-group number int_tables_number	94
Crystal system crystal_system	—

Resolution resolution	2.200 Å
Low-resolution limit resolution_low	103.690 Å
R factor r_factor	0.2372
R_work r_work	0.2349
R_free r_free	0.3079

Description description	unknown
Molecular weight formula_weight	15352.5 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	4822

Crystal structure of Klebsiella pneumoniae protein ORFY, Pfam DUF336

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

unknown

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

2a2l__assembly_1__model_1

2a2l__assembly_1__model_1 | I(q)

2a2l__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (10 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Klebsiella pneumoniae
NCBI taxonomy ID ncbi_taxonomy_id	573
Host organism host_organism	Escherichia coli BL21

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	558

Crystal structure of Klebsiella pneumoniae protein ORFY, Pfam DUF336

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

unknown

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

2a2l__assembly_1__model_1

2a2l__assembly_1__model_1 | I(q)

2a2l__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (10 domains)

CATH v4.4 (4 domains)

7. Citations (1)