SAXSdb — 1jqp

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

dipeptidyl peptidase I

Rattus norvegicus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CHLORIDE ION × 4 SULFATE ION × 4 water × 4	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CHLORIDE ION × 2 SULFATE ION × 2 water × 2	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 2	2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CHLORIDE ION × 2 SULFATE ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CATC_RAT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–438； UniProt 25–462

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	1jqp
Deposition date deposition_date	2001-08-08
Structure title title	dipeptidyl peptidase I (cathepsin C), a tetrameric cysteine protease of the papain family
Keywords keywords	cathepsin c, DPP I, papain, tetramer, chloride, cysteine 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.

1jqp__assembly_1__model_1

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

Download this curve (.dat)

1jqp__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1jqp__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	33.71 Å
Rg (electron density)	32.25 Å
Total Rg	33.07 Å
Atom count	11258
Residues	1392
Excluded volume	199440 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1jqp__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1jqp__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1jqp__assembly_3__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 (5)

Entity 1 Entity 1 polymer

Description description	dipeptidyl peptidase I
Molecular weight formula_weight	49866.3 kDa
EC 编号 ec_number	3.4.14.1
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	2898

DTPANCTYPDLLGTWVFQVGPRHPRSHINCSVMEPTEEKVVIHLKKLDTAYDEVGNSGYFTLIYNQGFEIVLNDYKWFAFFKYEVKGSRAISYCHETMTGWVHDVLGRNWACFVGKKMANHSEKVYVNVAHLGGLQEKYSERLYSHHHNFVKAINSVQKSWTATTYRRYEKLSIRDLIRRSGHSGRILRPKPAPITDEIQQQILSLPESWDWRNVRGINFVSPVRNQESCGSCYSFASLGMLEARIRILTNNSQTPILSPQEVVSCSPYAQGCDGGFPYLIAGKYAQDFGVVEENCFPYTATDAPCKPKENCLRYYSSEYYYVGGFYGGCNEALMKLELVKHGPMAVAFEVHDDFLHYHSGIYHHTGLSDPFNPFELTNHAVLLVGYGKDPVTGLDYWIVKNSWGSQWGESGYFRIRRGTDECAIESIAMAAIPIPKL

Source Source

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

Entity 2 Entity 2 non-polymer

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

Entity 3 Entity 3 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	83

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1jqpa1
Class class	b — All beta proteins
Fold Fold fold	b.61 — Streptavidin-like
Superfamily Superfamily superfamily	b.61.5 — Dipeptidyl peptidase I (cathepsin C), exclusion domain
Family Family family	b.61.5.1 — Dipeptidyl peptidase I (cathepsin C), exclusion domain

Domain ID domain_id	d1jqpa2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.3 — Cysteine proteinases
Superfamily Superfamily superfamily	d.3.1 — Cysteine proteinases
Family Family family	d.3.1.1 — Papain-like

CATH v4.4 (2 domains)

Domain ID domain_id	1jqpA01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	128 — Lipocalin
Homologous superfamily homologous superfamily	80 — Cathepsin C, exclusion domain

Domain ID domain_id	1jqpA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily	10 — Cysteine proteinases

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Unit-cell length a length_a	166.240 Å
Unit-cell length b length_b	166.240 Å
Unit-cell length c length_c	80.480 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 64 2 2
Space-group number int_tables_number	181
Crystal system crystal_system	—

Resolution resolution	2.400 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	—
R_work r_work	0.2450
R_free r_free	0.2740

dipeptidyl peptidase I (cathepsin C), a tetrameric cysteine protease of the papain family

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

dipeptidyl peptidase I

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

1jqp__assembly_1__model_1

1jqp__assembly_1__model_1 | I(q)

1jqp__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

dipeptidyl peptidase I (cathepsin C), a tetrameric cysteine protease of the papain family

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

dipeptidyl peptidase I

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

1jqp__assembly_1__model_1

1jqp__assembly_1__model_1 | I(q)

1jqp__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)