SAXSdb — 2c0j

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

TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT 3

HOMO SAPIENS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	R32611_2 × 1 （O75865） PALMITIC ACID × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TPPC3_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–161； UniProt 15–175

R32611_2

HOMO SAPIENS

UniProt O75865

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT 3 × 1 （O43617） PALMITIC ACID × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TPC6A_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–160； UniProt 1–160

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	2c0j
Deposition date deposition_date	2005-09-03
Structure title title	Crystal structure of the bet3-trs33 heterodimer
Keywords keywords	TRANSPORT, TRANSPORT PROTEIN, ENDOPLASMIC RETICULUM, ER-GOLGI TRANSPORT, LIPOPROTEIN, PALMITATE; TRANSPORT
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.

2c0j__assembly_1__model_1

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

Download this curve (.dat)

2c0j__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2c0j__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	22.47 Å
Rg (electron density)	21.30 Å
Total Rg	22.16 Å
Atom count	2419
Residues	304
Excluded volume	43643 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2c0j__assembly_1__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 (4)

Entity 1 Entity 1 polymer

Description description	TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT 3
Molecular weight formula_weight	18230.7 kDa
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	2486

SSELFTLTYGALVTQLCKDYENDEDVNKQLDRMGYNIGVRLIEDFLARSNVGRCHDFRETADVIAKVAFKMYLGITPSITNWSPAGDEFSLILENNPLVDFVELPDNHSALIYSNLLCGVLRGALEMVQMAVEAKFVQDTLKGDGVTEIRMRFIRRIEDNL

Source Source

Source organism organism	HOMO SAPIENS
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	R32611_2
Molecular weight formula_weight	17677.5 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

GMADTVLFEFLHTEMVAELWAHDPDPGPGGQKMSLSVLEGMGFRVGQALGERLPRETLAFREELDVLKFLCKDLWVAVFQKQMDSLRTNHQGTYVLQDNSFPLLLPMASGLQYLEEAPKFLAFTCGLLRGALYTLGIESVVTASVAALPVCKFQVVIPKS

Source Source

Source organism organism	HOMO SAPIENS
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	ESCHERICHIA COLI

Entity 3 Entity 3 non-polymer

Description description	PALMITIC ACID
Molecular weight formula_weight	256.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	67

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2c0ja_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.278 — Ligand-binding domain in the NO signalling and Golgi transport
Superfamily Superfamily superfamily	d.278.1 — Ligand-binding domain in the NO signalling and Golgi transport
Family Family family	d.278.1.2 — TRAPP components

CATH v4.4 (2 domains)

Domain ID domain_id	2c0jA00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1380 — Muramoyl-pentapeptide Carboxypeptidase; domain 2
Homologous superfamily homologous superfamily	20 — Trafficking protein particle complex subunit 3

Domain ID domain_id	2c0jB00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1380 — Muramoyl-pentapeptide Carboxypeptidase; domain 2
Homologous superfamily homologous superfamily	20 — Trafficking protein particle complex subunit 3

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Unit-cell length a length_a	52.877 Å
Unit-cell length b length_b	70.515 Å
Unit-cell length c length_c	88.965 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 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.200 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	0.2187
R_work r_work	0.2187
R_free r_free	0.2368

Crystal structure of the bet3-trs33 heterodimer

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

TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT 3

State in the Current Structure

Other States of the Same Protein in the Database

R32611_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

2c0j__assembly_1__model_1

2c0j__assembly_1__model_1 | I(q)

2c0j__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Crystal structure of the bet3-trs33 heterodimer

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

TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT 3

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

R32611_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

2c0j__assembly_1__model_1

2c0j__assembly_1__model_1 | I(q)

2c0j__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)