SAXSdb — 3ng4

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

Peptidoglycan recognition protein 1

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Homooligomer	Protein 4 其他Polymer 1	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 S,R MESO-TARTARIC ACID × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 GLYCEROL × 1 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PGRP1_CAMDR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–171； UniProt 23–193 Author chain B； PDBConstruct 1–171； UniProt 23–193 Author chain C； PDBConstruct 1–171； UniProt 23–193 Author chain D； PDBConstruct 1–171； UniProt 23–193

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	3ng4
Deposition date deposition_date	2010-06-10
Structure title title	Ternary complex of peptidoglycan recognition protein (PGRP-S) with Maltose and N-Acetylglucosamine at 1.7 A Resolution
Keywords keywords	Antibiotic, Peptidoglycan Recognition Protein, Complex, nag, Immune response, Secreted, Antimicrobial, IMMUNE SYSTEM; IMMUNE SYSTEM
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.

3ng4__assembly_1__model_1

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

Download this curve (.dat)

3ng4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3ng4__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.34 Å
Rg (electron density)	28.48 Å
Total Rg	29.19 Å
Atom count	5402
Residues	684
Excluded volume	94482 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3ng4__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	Peptidoglycan recognition protein 1
Molecular weight formula_weight	19011.5 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	6135

EDPPACGSIVPRREWRALASECRERLTRPVRYVVVSHTAGSHCDTPASCAQQAQNVQSYHVRNLGWCDVGYNFLIGEDGLVYEGRGWNIKGAHAGPTWNPISIGISFMGNYMNRVPPPRALRAAQNLLACGVALGALRSNYEVKGHRDVQPTLSPGDRLYEIIQTWSHYRA

Entity 2 Entity 2 branched

Description description	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose
Molecular weight formula_weight	342.3 kDa
Source method src_method	man
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	S,R MESO-TARTARIC ACID
Molecular weight formula_weight	150.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	733

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d3ng4a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.118 — N-acetylmuramoyl-L-alanine amidase-like
Superfamily Superfamily superfamily	d.118.1 — N-acetylmuramoyl-L-alanine amidase-like
Family Family family	d.118.1.1 — N-acetylmuramoyl-L-alanine amidase-like

Domain ID domain_id	d3ng4b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.118 — N-acetylmuramoyl-L-alanine amidase-like
Superfamily Superfamily superfamily	d.118.1 — N-acetylmuramoyl-L-alanine amidase-like
Family Family family	d.118.1.1 — N-acetylmuramoyl-L-alanine amidase-like

Domain ID domain_id	d3ng4c_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.118 — N-acetylmuramoyl-L-alanine amidase-like
Superfamily Superfamily superfamily	d.118.1 — N-acetylmuramoyl-L-alanine amidase-like
Family Family family	d.118.1.1 — N-acetylmuramoyl-L-alanine amidase-like

Domain ID domain_id	d3ng4d_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.118 — N-acetylmuramoyl-L-alanine amidase-like
Superfamily Superfamily superfamily	d.118.1 — N-acetylmuramoyl-L-alanine amidase-like
Family Family family	d.118.1.1 — N-acetylmuramoyl-L-alanine amidase-like

CATH v4.4 (4 domains)

Domain ID domain_id	3ng4A00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	80 — Lysozyme-like
Homologous superfamily homologous superfamily	10 — Peptidoglycan recognition protein-like

Domain ID domain_id	3ng4B00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	80 — Lysozyme-like
Homologous superfamily homologous superfamily	10 — Peptidoglycan recognition protein-like

Domain ID domain_id	3ng4C00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	80 — Lysozyme-like
Homologous superfamily homologous superfamily	10 — Peptidoglycan recognition protein-like

Domain ID domain_id	3ng4D00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	80 — Lysozyme-like
Homologous superfamily homologous superfamily	10 — Peptidoglycan recognition protein-like

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Unit-cell length a length_a	87.128 Å
Unit-cell length b length_b	100.784 Å
Unit-cell length c length_c	161.850 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	I 2 2 2
Space-group number int_tables_number	23
Crystal system crystal_system	—

Resolution resolution	1.730 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.2026
R_work r_work	0.2003
R_free r_free	0.2444

Ternary complex of peptidoglycan recognition protein (PGRP-S) with Maltose and N-Acetylglucosamine at 1.7 A Resolution

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

Peptidoglycan recognition protein 1

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

3ng4__assembly_1__model_1

3ng4__assembly_1__model_1 | I(q)

3ng4__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

Entity 2 Entity 2 branched

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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Ternary complex of peptidoglycan recognition protein (PGRP-S) with Maltose and N-Acetylglucosamine at 1.7 A Resolution

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

Peptidoglycan recognition protein 1

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

3ng4__assembly_1__model_1

3ng4__assembly_1__model_1 | I(q)

3ng4__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

Entity 2 Entity 2 branched

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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)