SAXSdb — 1jpx

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

gp41 envelope protein

Simian immunodeficiency virus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	water × 3	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 3	water × 3	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 3	water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q87972_SIVCZ
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–40； UniProt 555–594 Author chain A； PDBConstruct 47–84； UniProt 637–674 Author chain D； PDBConstruct 1–40； UniProt 555–594 Author chain D； PDBConstruct 47–84； UniProt 637–674 Author chain G； PDBConstruct 1–40； UniProt 555–594 Author chain G； PDBConstruct 47–84； UniProt 637–674

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	1jpx
Deposition date deposition_date	2001-08-03
Structure title title	Mutation that destabilize the gp41 core: determinants for stabilizing the SIV/CPmac envelope glycoprotein complex. Wild type.
Keywords keywords	GP41, SIV, HIV-1, MEMBRANE FUSION, SIX-HELIX BUNDLE, TRIMER-of-HAIRPINS, Viral protein; VIRAL PROTEIN
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.

1jpx__assembly_1__model_1

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

Download this curve (.dat)

1jpx__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1jpx__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.74 Å
Rg (electron density)	16.48 Å
Total Rg	17.40 Å
Atom count	1437
Residues	177
Excluded volume	25401 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1jpx__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1jpx__assembly_2__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1jpx__assembly_3__model_1`	trimeric （3）	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 (2)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1jpxa_
Class class	h — Coiled coil proteins
Fold Fold fold	h.3 — Stalk segment of viral fusion proteins
Superfamily Superfamily superfamily	h.3.2 — Virus ectodomain
Family Family family	h.3.2.1 — Virus ectodomain

Domain ID domain_id	d1jpxd_
Class class	h — Coiled coil proteins
Fold Fold fold	h.3 — Stalk segment of viral fusion proteins
Superfamily Superfamily superfamily	h.3.2 — Virus ectodomain
Family Family family	h.3.2.1 — Virus ectodomain

Domain ID domain_id	d1jpxg_
Class class	h — Coiled coil proteins
Fold Fold fold	h.3 — Stalk segment of viral fusion proteins
Superfamily Superfamily superfamily	h.3.2 — Virus ectodomain
Family Family family	h.3.2.1 — Virus ectodomain

CATH v4.4 (3 domains)

Domain ID domain_id	1jpxA00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	210 —

Domain ID domain_id	1jpxD00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	210 —

Domain ID domain_id	1jpxG00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	210 —

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Unit-cell length a length_a	54.993 Å
Unit-cell length b length_b	54.993 Å
Unit-cell length c length_c	131.140 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	18

Space group space_group	P 63
Space-group number int_tables_number	173
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	44.770 Å
R factor r_factor	—
R_work r_work	0.2370
R_free r_free	0.2830

Description description	gp41 envelope protein
Molecular weight formula_weight	9863.2 kDa
Source method src_method	man
Copy count entity_count	3

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,D,G
Atom count atom_count	1469

Mutation that destabilize the gp41 core: determinants for stabilizing the SIV/CPmac envelope glycoprotein complex. Wild type.

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

gp41 envelope protein

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

1jpx__assembly_1__model_1

1jpx__assembly_1__model_1 | I(q)

1jpx__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)

Source organism organism	Simian immunodeficiency virus
NCBI taxonomy ID ncbi_taxonomy_id	11723
Host organism host_organism	Escherichia coli BL21

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	65

Mutation that destabilize the gp41 core: determinants for stabilizing the SIV/CPmac envelope glycoprotein complex. Wild type.

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

gp41 envelope protein

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

1jpx__assembly_1__model_1

1jpx__assembly_1__model_1 | I(q)

1jpx__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)