2fac

Crystal structure of E. coli hexanoyl-ACP

Method: X-RAY DIFFRACTION Dmax: 60.8 Å Quality: REASONABLE

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

Acyl carrier protein

Escherichia coli

UniProt P0A6A8

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 1–77 Not recorded ZN ZINC ION × 7 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–77 Not recorded ZN ZINC ION × 4 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
3 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–77 Chain B; UniProt 1–77 Not recorded ZN ZINC ION × 22 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
4 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–77 Chain B; UniProt 1–77 Not recorded ZN ZINC ION × 22 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
5 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–77 Chain B; UniProt 1–77 Not recorded ZN ZINC ION × 22 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
6 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–77 Chain B; UniProt 1–77 Not recorded ZN ZINC ION × 11 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
7 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–77 Chain B; UniProt 1–77 Not recorded ZN ZINC ION × 11 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
8 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–77 Chain B; UniProt 1–77 Not recorded ZN ZINC ION × 11 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241
9 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–77 Not recorded ZN ZINC ION × 14 PM4 S-(2-{[N-(2-HYDROXY-4-{[HYDROXY(OXIDO)PHOSPHINO]OXY}-3,3-DIMETHYLBUTANOYL)-BETA-ALANYL]AMINO}ETHYL) HEXANETHIOATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;290 K;16-20% PEG 1500, 20 mM zinc acetate, 50 mM sodium cocadylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 1.76 Å R-free 0.241

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.

39 other PDB entries and 61 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACP_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–77; UniProt 1–77 Author chain B; PDBConstruct 1–77; UniProt 1–77

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 2fac

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2fac
Deposition date deposition_date2005-12-07
Structure title titleCrystal structure of E. coli hexanoyl-ACP
Keywords keywordsacyl carrier protein, acyl chain binding, fatty acid biosynthesis, BIOSYNTHETIC PROTEIN; BIOSYNTHETIC PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.53
Radius of gyration Rg (electron density) rg_electron17.52
Forward intensity I(0) i07478530.00
Molecular weight molecular_weight18585.0 kDa
Excluded volume excluded_volume22452 ų
Envelope volume envelope_volume26466 ų
Hydration-shell volume shell_volume13391 ų
Envelope diameter envelope_diameter60.7
Shell Rg shell_rg22.58
Envelope Rg envelope_rg17.56
Shape Rg shape_rg17.44
Total Rg total_rg18.51
Total atoms total_atoms1261
Residues n_residues154
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 dmax60.8
Rg (real space) rg_real18.54
Rg uncertainty (real space) rg_real_error0.44
I(0) (real space) i0_real7.4790e+06
I(0) uncertainty (real space) i0_real_error1.0340e+05
Rg (reciprocal space) rg_reciprocal18.54
I(0) (reciprocal space) i0_reciprocal7479000.0000
Solution quality estimate total_estimate0.6343
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary20.0
Skewness Skewness skewness0.337
Kurtosis Kurtosis kurtosis-0.410
Angular range angular_range— – 0.4300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1517000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.828; Stabil: 1.000; Sysdev: 0.259; Positv: 1.000; Valcen: 0.981; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2faca_
Class classa — All alpha proteins
Fold Fold folda.28 — Acyl carrier protein-like
Superfamily Superfamily superfamilya.28.1 — ACP-like
Family Family familya.28.1.1 — Acyl-carrier protein (ACP)
Domain ID domain_idd2facb_
Class classa — All alpha proteins
Fold Fold folda.28 — Acyl carrier protein-like
Superfamily Superfamily superfamilya.28.1 — ACP-like
Family Family familya.28.1.1 — Acyl-carrier protein (ACP)

CATH v4.4 (2 domains)

Domain ID domain_id2facA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily10 — ACP-like
Domain ID domain_id2facB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily10 — ACP-like

8. Citations (1)

9. Files and Curves (10)