SAXSdb — 1lf3

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

plasmepsin 2

Plasmodium falciparum

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	;N-(1-BENZYL-3-{[3-(1,3-DIOXO-1,3-DIHYDRO-ISOINDOL-2-YL)-PROPIONYL]-[2-(HEXAHYDRO-BENZO[1,3]DIOXOL-5-YL)-ETHYL]-AMINO}-2-HYDROXY-PROPYL)-4-BENZYLOXY-3,5-DIMETHOXY-BENZAMIDE ; × 1 water × 1	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	;N-(1-BENZYL-3-{[3-(1,3-DIOXO-1,3-DIHYDRO-ISOINDOL-2-YL)-PROPIONYL]-[2-(HEXAHYDRO-BENZO[1,3]DIOXOL-5-YL)-ETHYL]-AMINO}-2-HYDROXY-PROPYL)-4-BENZYLOXY-3,5-DIMETHOXY-BENZAMIDE ; × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PLM2_PLAFA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–331； UniProt 123–453

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	1lf3
Deposition date deposition_date	2002-04-10
Structure title title	CRYSTAL STRUCTURE OF PLASMEPSIN II FROM P FALCIPARUM IN COMPLEX WITH INHIBITOR EH58
Keywords keywords	plasmepsin, plasmodium falciparum, aspartic protease, 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.

1lf3__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1lf3__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1lf3__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	30.32 Å
Rg (electron density)	29.33 Å
Total Rg	29.99 Å
Atom count	5384
Residues	662
Excluded volume	96118 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1lf3__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1lf3__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	plasmepsin 2
Molecular weight formula_weight	37123.9 kDa
EC 编号 ec_number	3.4.23.39
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	2744

LGSSNDNIELVDFQNIMFYGDAEVGDNQQPFTFILDTGSANLWVPSVKCTTAGCLTKHLYDSSKSRTYEKDGTKVEMNYVSGTVSGFFSKDLVTVGNLSLPYKFIEVIDTNGFEPTYTASTFDGILGLGWKDLSIGSVDPIVVELKNQNKIENALFTFYLPVHDKHTGFLTIGGIEERFYEGPLTYEKLNHDLYWQITLDAHVGNIMLEKANCIVDSGTSAITVPTDFLNKMLQNLDVIKVPFLPFYVTLCNNSKLPTFEFTSENGKYTLEPEYYLQHIEDVGPGLCMLNIIGLDFPVPTFILGDPFMRKYFTVFDYDNHSVGIALAKKNL

Source Source

Source organism organism	Plasmodium falciparum
Common name common_name	malaria parasite P. falciparum
NCBI taxonomy ID ncbi_taxonomy_id	5833
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	;N-(1-BENZYL-3-{[3-(1,3-DIOXO-1,3-DIHYDRO-ISOINDOL-2-YL)-PROPIONYL]-[2-(HEXAHYDRO-BENZO[1,3]DIOXOL-5-YL)-ETHYL]-AMINO}-2-HYDROXY-PROPYL)-4-BENZYLOXY-3,5-DIMETHOXY-BENZAMIDE ;
Molecular weight formula_weight	805.9 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	52

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1lf3a_
Class class	b — All beta proteins
Fold Fold fold	b.50 — Acid proteases
Superfamily Superfamily superfamily	b.50.1 — Acid proteases
Family Family family	b.50.1.2 — Pepsin-like

CATH v4.4 (2 domains)

Domain ID domain_id	1lf3A01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily	10 — Acid Proteases

Domain ID domain_id	1lf3A02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily	10 — Acid Proteases

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Unit-cell length a length_a	53.411 Å
Unit-cell length b length_b	39.904 Å
Unit-cell length c length_c	91.409 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	105.11 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	2

Space group space_group	P 1 2 1
Space-group number int_tables_number	3
Crystal system crystal_system	—

Resolution resolution	2.700 Å
Low-resolution limit resolution_low	17.760 Å
R factor r_factor	0.1780
R_work r_work	0.1780
R_free r_free	0.2240

CRYSTAL STRUCTURE OF PLASMEPSIN II FROM P FALCIPARUM IN COMPLEX WITH INHIBITOR EH58

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

plasmepsin 2

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

1lf3__assembly_2__model_1

1lf3__assembly_2__model_1 | I(q)

1lf3__assembly_2__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) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF PLASMEPSIN II FROM P FALCIPARUM IN COMPLEX WITH INHIBITOR EH58

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

plasmepsin 2

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

1lf3__assembly_2__model_1

1lf3__assembly_2__model_1 | I(q)

1lf3__assembly_2__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) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)