2cbs

CELLULAR RETINOIC ACID BINDING PROTEIN II IN COMPLEX WITH A SYNTHETIC RETINOIC ACID (RO-13 6307)

Method: X-RAY DIFFRACTION Dmax: 51.0 Å Quality: GOOD

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

PROTEIN (CRABP-II)

Homo sapiens

UniProt P29373

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 2–138 Not recorded R13 3-METHYL-7-(5,5,8,8-TETRAMETHYL-5,6,7,8-TETRAHYDRO-NAPHTHALEN-2-YL) -OCTA-2,4,6-TRIENOIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.5;20% MONOMETHYL PEG 5000 0.1 M SODIUM ACETATE PH 5.5 Resolution 2.10 Å R-free 0.233

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.

84 other PDB entries and 138 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RABP2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–137; UniProt 2–138

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.

SAXS scattering curve SAXS Profile

SAXS profile for 2cbs

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2cbs
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2cbs
Deposition date deposition_date1999-02-22
Structure title titleCELLULAR RETINOIC ACID BINDING PROTEIN II IN COMPLEX WITH A SYNTHETIC RETINOIC ACID (RO-13 6307)
Keywords keywordsRETINOIC-ACID TRANSPORT, TRANSPORT PROTEIN; TRANSPORT PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier15.70
Radius of gyration Rg (electron density) rg_electron14.48
Forward intensity I(0) i04745780.00
Molecular weight molecular_weight15898.0 kDa
Excluded volume excluded_volume20085 ų
Envelope volume envelope_volume22354 ų
Hydration-shell volume shell_volume13134 ų
Envelope diameter envelope_diameter51.3
Shell Rg shell_rg20.25
Envelope Rg envelope_rg14.64
Shape Rg shape_rg14.46
Total Rg total_rg15.72
Total atoms total_atoms1116
Residues n_residues137
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

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

Maximum dimension Dmax dmax51.0
Rg (real space) rg_real15.59
Rg uncertainty (real space) rg_real_error0.27
I(0) (real space) i0_real4.7460e+06
I(0) uncertainty (real space) i0_real_error5.4020e+04
Rg (reciprocal space) rg_reciprocal15.60
I(0) (reciprocal space) i0_reciprocal4746000.0000
Solution quality estimate total_estimate0.8807
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary20.0
Skewness Skewness skewness0.129
Kurtosis Kurtosis kurtosis-0.344
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha986800.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.823; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.980

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2cbsa_
Class classb — All beta proteins
Fold Fold foldb.60 — Lipocalins
Superfamily Superfamily superfamilyb.60.1 — Lipocalins
Family Family familyb.60.1.2 — Fatty acid binding protein-like

CATH v4.4 (1 domains)

Domain ID domain_id2cbsA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily20 — Calycin beta-barrel core domain

8. Citations (4)

9. Files and Curves (10)