7bvg

Cryo-EM structure of Mycobacterium smegmatis arabinosyltransferase EmbA-EmbB-AcpM2 in complex with di-arabinose.

Method: ELECTRON MICROSCOPY Dmax: 135.6 Å Quality: GOOD

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

Integral membrane indolylacetylinositol arabinosyltransferase EmbA

Mycolicibacterium smegmatis MC2 155

UniProt A0R613

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 3 其他Polymer 1 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–1080 Not recorded Integral membrane indolylacetylinositol arabinosyltransferase EmbB × 1 (I7GAQ2) Meromycolate extension acyl carrier protein × 1 (A0R0B3) alpha-D-arabinofuranose-(1-5)-alpha-D-arabinofuranose × 1 F8L [(2Z,6E,10E,14Z,18E,22Z,26Z)-3,7,11,15,19,23,27,31,35,39-decamethyltetraconta-2,6,10,14,18,22,26,30,34,38-decaenyl] [(2S,3S,4S,5R)-5-(hydroxymethyl)-3,4-bis(oxidanyl)oxolan-2-yl] hydrogen phosphate × 1 CDL CARDIOLIPIN × 2 CA CALCIUM ION × 2 PO4 PHOSPHATE ION × 1 PNS 4'-PHOSPHOPANTETHEINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.10 Å

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.

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A0R613_MYCS2
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 9–1088; UniProt 1–1080

Integral membrane indolylacetylinositol arabinosyltransferase EmbB

Mycolicibacterium smegmatis MC2 155

UniProt I7GAQ2

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 3 其他Polymer 1 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 1–1082 Not recorded Integral membrane indolylacetylinositol arabinosyltransferase EmbA × 1 (A0R613) Meromycolate extension acyl carrier protein × 1 (A0R0B3) alpha-D-arabinofuranose-(1-5)-alpha-D-arabinofuranose × 1 F8L [(2Z,6E,10E,14Z,18E,22Z,26Z)-3,7,11,15,19,23,27,31,35,39-decamethyltetraconta-2,6,10,14,18,22,26,30,34,38-decaenyl] [(2S,3S,4S,5R)-5-(hydroxymethyl)-3,4-bis(oxidanyl)oxolan-2-yl] hydrogen phosphate × 1 CDL CARDIOLIPIN × 2 CA CALCIUM ION × 2 PO4 PHOSPHATE ION × 1 PNS 4'-PHOSPHOPANTETHEINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.10 Å

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.

4 other PDB entries and 4 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name I7GAQ2_MYCS2
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–1082; UniProt 1–1082

Meromycolate extension acyl carrier protein

OrganismNot specified

UniProt A0R0B3

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 3 其他Polymer 1 PDB declaration: trimeric(3) Consistent with protein copy count Chain P; UniProt 1–99 Not recorded Integral membrane indolylacetylinositol arabinosyltransferase EmbA × 1 (A0R613) Integral membrane indolylacetylinositol arabinosyltransferase EmbB × 1 (I7GAQ2) alpha-D-arabinofuranose-(1-5)-alpha-D-arabinofuranose × 1 F8L [(2Z,6E,10E,14Z,18E,22Z,26Z)-3,7,11,15,19,23,27,31,35,39-decamethyltetraconta-2,6,10,14,18,22,26,30,34,38-decaenyl] [(2S,3S,4S,5R)-5-(hydroxymethyl)-3,4-bis(oxidanyl)oxolan-2-yl] hydrogen phosphate × 1 CDL CARDIOLIPIN × 2 CA CALCIUM ION × 2 PO4 PHOSPHATE ION × 1 PNS 4'-PHOSPHOPANTETHEINE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.10 Å

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.

18 other PDB entries and 18 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACPM_MYCS2
Isoform
PDB entities 3
Chains and sequence ranges Author chain P; PDBConstruct 1–99; UniProt 1–99

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 7bvg

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7bvg
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7bvg
Deposition date deposition_date2020-04-10
Structure title titleCryo-EM structure of Mycobacterium smegmatis arabinosyltransferase EmbA-EmbB-AcpM2 in complex with di-arabinose.
Keywords keywords;Mycobacterium smegmatis, cell wall synthesis, drug target, ethambutol, arabinosyltransferase, EmbA, EmbB, EmbC, acyl carrier protein, arabinogalactan, lipoarabinomannan, drug resistance, TRANSFERASE ;; TRANSFERASE
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier42.66
Radius of gyration Rg (electron density) rg_electron41.66
Forward intensity I(0) i0804866000.00
Molecular weight molecular_weight244240.0 kDa
Excluded volume excluded_volume310110 ų
Envelope volume envelope_volume409610 ų
Hydration-shell volume shell_volume78882 ų
Envelope diameter envelope_diameter143.4
Shell Rg shell_rg49.34
Envelope Rg envelope_rg41.27
Shape Rg shape_rg41.64
Total Rg total_rg42.13
Total atoms total_atoms17231
Residues n_residues2234
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 dmax135.6
Rg (real space) rg_real42.46
Rg uncertainty (real space) rg_real_error1.21
I(0) (real space) i0_real8.0490e+08
I(0) uncertainty (real space) i0_real_error1.4810e+07
Rg (reciprocal space) rg_reciprocal42.66
I(0) (reciprocal space) i0_reciprocal805000000.0000
Solution quality estimate total_estimate0.8894
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary55.0
Skewness Skewness skewness0.144
Kurtosis Kurtosis kurtosis-0.423
Angular range angular_range— – 0.1850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha81130000.0000
Real-space data points n_real_points38
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.896; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.975; Smooth: 0.896

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd7bvgp_
Class classa — All alpha proteins
Fold Fold folda.28 — Acyl carrier protein-like
Superfamily Superfamily superfamilya.28.1 — ACP-like
Family Family familya.28.1.0 — automated matches

CATH v4.4 (1 domains)

Domain ID domain_id7bvgB01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily610 — arabinofuranosyltransferase like domain

8. Citations (1)

9. Files and Curves (10)