SAXSdb — 1i1i

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

NEUROLYSIN

Rattus norvegicus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	ZINC ION × 2 water × 1	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	ZINC ION × 4 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	NEUL_RAT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain P； PDBConstruct 1–681； UniProt 24–704

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	1i1i
Deposition date deposition_date	2001-02-01
Structure title title	NEUROLYSIN (ENDOPEPTIDASE 24.16) CRYSTAL STRUCTURE
Keywords keywords	neuropeptidase, zinc metallopeptidase, endopeptidase, 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.

1i1i__assembly_1__model_1

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

Download this curve (.dat)

1i1i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1i1i__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.29 Å
Rg (electron density)	26.22 Å
Total Rg	27.14 Å
Atom count	5350
Residues	665
Excluded volume	95404 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1i1i__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1i1i__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	NEUROLYSIN
Molecular weight formula_weight	77874.9 kDa
EC 编号 ec_number	3.4.24.16
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	P
Atom count atom_count	5522

MTLGKELASPLQAMSSYTAAGRNVLRWDLSPEQIKTRTEQLIAQTKQVYDTVGTIALKEVTYENCLQVLADIEVTYIVERTMLDFPQHVSSDREVRAASTEADKKLSRFDIEMSMREDVFQRIVHLQETCDLEKIKPEARRYLEKSIKMGKRNGLHLSEHIRNEIKSMKKRMSELCIDFNKNLNEDDTSLVFSKAELGALPDDFIDSLEKTDEDKYKVTLKYPHYFPVMKKCCVPETRRKMEMAFHTRCKQENTAILQQLLPLRAQVAKLLGYNTHADFVLELNTAKSTSRVAAFLDDLSQKLKPLGEAEREFILSLKKKECEERGFEYDGKINAWDLHYYMTQTEELKYSVDQESLKEYFPIEVVTEGLLSIYQELLGLSFEQVPDAHVWNKSVSLYTVKDKATGEVLGQFYLDLYPREGKYNHAACFGLQPGCLLPDGSRMMSVAALVVNFSQPVAGRPSLLRHDEVRTYFHEFGHVMHQICAQTDFARFSGTNVETDFVEVPSQMLENWVWDVDSLRKLSKHYKDGHPITDELLEKLVASRLVNTGLLTLRQIVLSKVDQSLHTNATLDAASEYAKYCTEILGVAATPGTNMPATFGHLAGGYDGQYYGYLWSEVFSMDMFHSCFKKEGIMNPEVGMKYRNLILKPGGSLDGMDMLQNFLQREPNQKAFLMSRGLNGS

Source Source

Source organism organism	Rattus norvegicus
Common name common_name	Norway rat
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	Escherichia coli

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	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	172

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1i1ip_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.92 — Zincin-like
Superfamily Superfamily superfamily	d.92.1 — Metalloproteases ('zincins'), catalytic domain
Family Family family	d.92.1.5 — Neurolysin-like

CATH v4.4 (3 domains)

Domain ID domain_id	1i1iP01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1050 — Glutathione S-transferase Yfyf (Class Pi); Chain A, domain 2
Homologous superfamily homologous superfamily	40 — Endopeptidase. Chain P; domain 1

Domain ID domain_id	1i1iP02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	390 — Collagenase (Catalytic Domain)
Homologous superfamily homologous superfamily	10 — Collagenase (Catalytic Domain)

Domain ID domain_id	1i1iP03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1370 — Neurolysin; domain 3
Homologous superfamily homologous superfamily	10 — Neurolysin, domain 3

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Unit-cell length a length_a	157.600 Å
Unit-cell length b length_b	87.700 Å
Unit-cell length c length_c	58.300 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	4

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	—
R_work r_work	0.2240
R_free r_free	0.2680

NEUROLYSIN (ENDOPEPTIDASE 24.16) CRYSTAL STRUCTURE

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

NEUROLYSIN

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

1i1i__assembly_1__model_1

1i1i__assembly_1__model_1 | I(q)

1i1i__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) 4 domains

SCOP 2.08 (1 domains)

CATH v4.4 (3 domains)

7. Citations (2)

NEUROLYSIN (ENDOPEPTIDASE 24.16) CRYSTAL STRUCTURE

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

NEUROLYSIN

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

1i1i__assembly_1__model_1

1i1i__assembly_1__model_1 | I(q)

1i1i__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) 4 domains

SCOP 2.08 (1 domains)

CATH v4.4 (3 domains)

7. Citations (2)