1lql

Crystal structure of OsmC like protein from Mycoplasma pneumoniae

Method: X-RAY DIFFRACTION

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

osmotical inducible protein C like family

Mycoplasma pneumoniae

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Y625_MYCPN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 26–166； UniProt 1–141 Author chain B； PDBConstruct 26–166； UniProt 1–141 Author chain C； PDBConstruct 26–166； UniProt 1–141 Author chain D； PDBConstruct 26–166； UniProt 1–141 Author chain E； PDBConstruct 26–166； UniProt 1–141 Author chain F； PDBConstruct 26–166； UniProt 1–141 Author chain G； PDBConstruct 26–166； UniProt 1–141 Author chain H； PDBConstruct 26–166； UniProt 1–141 Author chain I； PDBConstruct 26–166； UniProt 1–141 Author chain J； PDBConstruct 26–166； UniProt 1–141

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	1lql
Deposition date deposition_date	2002-05-10
Structure title title	Crystal structure of OsmC like protein from Mycoplasma pneumoniae
Keywords keywords	;OsmC, New Fold, Structural Genomics, BSGC structure funded by NIH, Protein Structure Initiative, PSI, Berkeley Structural Genomics Center, UNKNOWN FUNCTION ;; 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.

1lql__assembly_4__model_1

Assembly 4 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1lql__assembly_4__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1lql__assembly_4__model_1 | P(r) · Pending

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

Rg（Guinier）	20.10 Å
Rg (electron density)	19.01 Å
Total Rg	19.90 Å
Atom count	2168
Residues	282
Excluded volume	38752 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1lql__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1lql__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1lql__assembly_3__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1lql__assembly_4__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
5	1	`1lql__assembly_5__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 (2)

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6. Fold Classification (SCOP + CATH) 35 domains

SCOP 2.08 (15 domains)

Domain ID domain_id	d1lqla_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqlb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqlc1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqlc2
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	d1lqld1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqld2
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	d1lqle_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqlf1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqlf2
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	d1lqlg_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqlh_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqli1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqli2
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	d1lqlj1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.1 — Ohr/OsmC resistance proteins

Domain ID domain_id	d1lqlj2
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 (20 domains)

Domain ID domain_id	1lqlA01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlB01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlC01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlC02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlD01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlD02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlE01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlE02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlF01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlF02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlG01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlG02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlH01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlH02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlI01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlI02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	1lqlJ01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1lqlJ02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

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Unit-cell length a length_a	66.360 Å
Unit-cell length b length_b	95.600 Å
Unit-cell length c length_c	308.480 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	40

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.850 Å
Low-resolution limit resolution_low	19.910 Å
R factor r_factor	0.2190
R_work r_work	0.2170
R_free r_free	0.2760

Description description	osmotical inducible protein C like family
Molecular weight formula_weight	18473.9 kDa
Source method src_method	man
Copy count entity_count	10

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J
Atom count atom_count	11257

Crystal structure of OsmC like protein from Mycoplasma pneumoniae

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

osmotical inducible protein C like family

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

1lql__assembly_4__model_1

1lql__assembly_4__model_1 | I(q)

1lql__assembly_4__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) 35 domains

SCOP 2.08 (15 domains)

CATH v4.4 (20 domains)

7. Citations (1)

Source organism organism	Mycoplasma pneumoniae
NCBI taxonomy ID ncbi_taxonomy_id	2104
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	219

Crystal structure of OsmC like protein from Mycoplasma pneumoniae

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

osmotical inducible protein C like family

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

1lql__assembly_4__model_1

1lql__assembly_4__model_1 | I(q)

1lql__assembly_4__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) 35 domains

SCOP 2.08 (15 domains)

CATH v4.4 (20 domains)

7. Citations (1)