SAXSdb — 1c44

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

PROTEIN (STEROL CARRIER PROTEIN 2)

Oryctolagus cuniculus

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein monomer Monomer Protein × 1 PDB declaration: monomeric（1） Consistent with protein copy count	Chain A； UniProt 425–547	Not recorded	No other associated polymer	X-RAY DIFFRACTION X-ray crystallization conditions：pH 6.5；AMMONIUM SULFATE, LITHIUM SULFATE, CITRATE PH=6.5	Resolution 1.80 Å R-free 0.244

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence

UniProt name	NLTP_RABIT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–123； UniProt 425–547

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	1c44
Deposition date deposition_date	1999-07-02
Structure title title	STEROL CARRIER PROTEIN 2 (SCP2) FROM RABBIT
Keywords keywords	STEROL CARRIER PROTEIN, NON SPECIFIC LIPID TRANSFER PROTEIN, FATTY ACID BINDING, FATTY ACYL COA BINDING, LIPID BINDING PROTEIN; LIPID BINDING PROTEIN
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	15.08 Å
Radius of gyration Rg (electron density) rg_electron	13.59 Å
Forward intensity I(0) i0	3364370.00
Molecular weight molecular_weight	13180.0 kDa
Excluded volume excluded_volume	16723 Å³
Envelope volume envelope_volume	18784 Å³
Hydration-shell volume shell_volume	11794 Å³
Envelope diameter envelope_diameter	48.4 Å
Shell Rg shell_rg	19.33 Å
Envelope Rg envelope_rg	14.05 Å
Shape Rg shape_rg	13.57 Å
Total Rg total_rg	14.94 Å
Total atoms total_atoms	923
Residues n_residues	123
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	49.8 Å
Rg (real space) rg_real	14.98 Å
Rg uncertainty (real space) rg_real_error	0.27 Å
I(0) (real space) i0_real	3.3640e+06
I(0) uncertainty (real space) i0_real_error	3.6700e+04
Rg (reciprocal space) rg_reciprocal	14.99 Å
I(0) (reciprocal space) i0_reciprocal	3364000.0000
Solution quality estimate total_estimate	0.8699
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	20.2 Å
Skewness Skewness skewness	0.163
Kurtosis Kurtosis kurtosis	-0.209
Angular range angular_range	— – 0.5000 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	543700.0000
Real-space data points n_real_points	80
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.772; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.989

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (2)

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7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1c44a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.106 — SCP-like
Superfamily Superfamily superfamily	d.106.1 — SCP-like
Family Family family	d.106.1.1 — Sterol carrier protein, SCP

CATH v4.4 (1 domains)

Domain ID domain_id	1c44A00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1050 — Nonspecific Lipid-transfer Protein; Chain A
Homologous superfamily homologous superfamily	10 — SCP2 sterol-binding domain

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8. Citations (2)

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Unit-cell length a length_a	57.486 Å
Unit-cell length b length_b	57.486 Å
Unit-cell length c length_c	86.487 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	8

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	—
R_work r_work	0.1750
R_free r_free	0.2440

Description description	PROTEIN (STEROL CARRIER PROTEIN 2)
Molecular weight formula_weight	13211.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1105

STEROL CARRIER PROTEIN 2 (SCP2) FROM RABBIT

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

PROTEIN (STEROL CARRIER PROTEIN 2)

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

6. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 water

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

8. Citations (2)

9. Files and Curves (10)

Files (7)

Curves (3)

来源生物 organism	Oryctolagus cuniculus
通用名 common_name	rabbit
NCBI Class编号 ncbi_taxonomy_id	9986
宿主生物 host_organism	Escherichia coli BL21

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	140

fit	/app/data/saxs_computation/c4/1c44/1c44.fit
pddf	/app/data/pr_computation/c4/1c44/1c44.pr.out
profile	/app/data/saxs_computation/c4/1c44/1c44.dat