6tz4

CryoEM reconstruction of membrane-bound ESCRT-III filament composed of CHMP1B+IST1 (right-handed)

Method: ELECTRON MICROSCOPY Dmax: 235.8 Å Quality: GOOD

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

Charged multivesicular body protein 1b

Homo sapiens

UniProt Q7LBR1

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 heterocomplex Heteromer Protein × 72 PDB declaration: 72-meric(72) Consistent with protein copy count Chain 02; UniProt 1–199 Chain A; UniProt 1–199 Chain BA; UniProt 1–199 Chain BB; UniProt 1–199 Chain C; UniProt 1–199 Chain DA; UniProt 1–199 Chain DB; UniProt 1–199 Chain E; UniProt 1–199 Chain FA; UniProt 1–199 Chain FB; UniProt 1–199 Chain G; UniProt 1–199 Chain HA; UniProt 1–199 Chain HB; UniProt 1–199 Chain I; UniProt 1–199 Chain JA; UniProt 1–199 Chain JB; UniProt 1–199 Chain K; UniProt 1–199 Chain LA; UniProt 1–199 Chain LB; UniProt 1–199 Chain M; UniProt 1–199 Chain NA; UniProt 1–199 Chain NB; UniProt 1–199 Chain O; UniProt 1–199 Chain PA; UniProt 1–199 Chain PB; UniProt 1–199 Chain Q; UniProt 1–199 Chain RA; UniProt 1–199 Chain RB; UniProt 1–199 Chain S; UniProt 1–199 Chain TA; UniProt 1–199 Chain V; UniProt 1–199 Chain VA; UniProt 1–199 Chain X; UniProt 1–199 Chain XA; UniProt 1–199 Chain Z; UniProt 1–199 Chain ZA; UniProt 1–199 Mutation:K37E IST1 homolog × 36 (P53990) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE;Grids were blotted with Whatman No. 1 filter paper for 4-8 seconds with a 0 mm offset at 19C and 100 percent humidity before plunging into liquid ethane Resolution 3.20 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.

9 other PDB entries and 10 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CHM1B_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain 02; PDBConstruct 1–199; UniProt 1–199 Author chain A; PDBConstruct 1–199; UniProt 1–199 Author chain BA; PDBConstruct 1–199; UniProt 1–199 Author chain BB; PDBConstruct 1–199; UniProt 1–199 Author chain C; PDBConstruct 1–199; UniProt 1–199 Author chain DA; PDBConstruct 1–199; UniProt 1–199 Author chain DB; PDBConstruct 1–199; UniProt 1–199 Author chain E; PDBConstruct 1–199; UniProt 1–199 Author chain FA; PDBConstruct 1–199; UniProt 1–199 Author chain FB; PDBConstruct 1–199; UniProt 1–199 Author chain G; PDBConstruct 1–199; UniProt 1–199 Author chain HA; PDBConstruct 1–199; UniProt 1–199 Author chain HB; PDBConstruct 1–199; UniProt 1–199 Author chain I; PDBConstruct 1–199; UniProt 1–199 Author chain JA; PDBConstruct 1–199; UniProt 1–199 Author chain JB; PDBConstruct 1–199; UniProt 1–199 Author chain K; PDBConstruct 1–199; UniProt 1–199 Author chain LA; PDBConstruct 1–199; UniProt 1–199 Author chain LB; PDBConstruct 1–199; UniProt 1–199 Author chain M; PDBConstruct 1–199; UniProt 1–199 Author chain NA; PDBConstruct 1–199; UniProt 1–199 Author chain NB; PDBConstruct 1–199; UniProt 1–199 Author chain O; PDBConstruct 1–199; UniProt 1–199 Author chain PA; PDBConstruct 1–199; UniProt 1–199 Author chain PB; PDBConstruct 1–199; UniProt 1–199 Author chain Q; PDBConstruct 1–199; UniProt 1–199 Author chain RA; PDBConstruct 1–199; UniProt 1–199 Author chain RB; PDBConstruct 1–199; UniProt 1–199 Author chain S; PDBConstruct 1–199; UniProt 1–199 Author chain TA; PDBConstruct 1–199; UniProt 1–199 Author chain V; PDBConstruct 1–199; UniProt 1–199 Author chain VA; PDBConstruct 1–199; UniProt 1–199 Author chain X; PDBConstruct 1–199; UniProt 1–199 Author chain XA; PDBConstruct 1–199; UniProt 1–199 Author chain Z; PDBConstruct 1–199; UniProt 1–199 Author chain ZA; PDBConstruct 1–199; UniProt 1–199

IST1 homolog

Homo sapiens

UniProt P53990

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 heterocomplex Heteromer Protein × 72 PDB declaration: 72-meric(72) Consistent with protein copy count Chain 01; UniProt 1–189 Chain AA; UniProt 1–189 Chain AB; UniProt 1–189 Chain B; UniProt 1–189 Chain CA; UniProt 1–189 Chain CB; UniProt 1–189 Chain D; UniProt 1–189 Chain EA; UniProt 1–189 Chain EB; UniProt 1–189 Chain F; UniProt 1–189 Chain GA; UniProt 1–189 Chain GB; UniProt 1–189 Chain H; UniProt 1–189 Chain IA; UniProt 1–189 Chain IB; UniProt 1–189 Chain J; UniProt 1–189 Chain KA; UniProt 1–189 Chain KB; UniProt 1–189 Chain L; UniProt 1–189 Chain MA; UniProt 1–189 Chain MB; UniProt 1–189 Chain N; UniProt 1–189 Chain OA; UniProt 1–189 Chain OB; UniProt 1–189 Chain P; UniProt 1–189 Chain QA; UniProt 1–189 Chain QB; UniProt 1–189 Chain R; UniProt 1–189 Chain SA; UniProt 1–189 Chain SB; UniProt 1–189 Chain T; UniProt 1–189 Chain UA; UniProt 1–189 Chain W; UniProt 1–189 Chain WA; UniProt 1–189 Chain Y; UniProt 1–189 Chain YA; UniProt 1–189 Fragment:N-terminal domain (UNP residues 1-189) Charged multivesicular body protein 1b × 36 (Q7LBR1) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE;Grids were blotted with Whatman No. 1 filter paper for 4-8 seconds with a 0 mm offset at 19C and 100 percent humidity before plunging into liquid ethane Resolution 3.20 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.

15 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IST1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain 01; PDBConstruct 1–189; UniProt 1–189 Author chain AA; PDBConstruct 1–189; UniProt 1–189 Author chain AB; PDBConstruct 1–189; UniProt 1–189 Author chain B; PDBConstruct 1–189; UniProt 1–189 Author chain CA; PDBConstruct 1–189; UniProt 1–189 Author chain CB; PDBConstruct 1–189; UniProt 1–189 Author chain D; PDBConstruct 1–189; UniProt 1–189 Author chain EA; PDBConstruct 1–189; UniProt 1–189 Author chain EB; PDBConstruct 1–189; UniProt 1–189 Author chain F; PDBConstruct 1–189; UniProt 1–189 Author chain GA; PDBConstruct 1–189; UniProt 1–189 Author chain GB; PDBConstruct 1–189; UniProt 1–189 Author chain H; PDBConstruct 1–189; UniProt 1–189 Author chain IA; PDBConstruct 1–189; UniProt 1–189 Author chain IB; PDBConstruct 1–189; UniProt 1–189 Author chain J; PDBConstruct 1–189; UniProt 1–189 Author chain KA; PDBConstruct 1–189; UniProt 1–189 Author chain KB; PDBConstruct 1–189; UniProt 1–189 Author chain L; PDBConstruct 1–189; UniProt 1–189 Author chain MA; PDBConstruct 1–189; UniProt 1–189 Author chain MB; PDBConstruct 1–189; UniProt 1–189 Author chain N; PDBConstruct 1–189; UniProt 1–189 Author chain OA; PDBConstruct 1–189; UniProt 1–189 Author chain OB; PDBConstruct 1–189; UniProt 1–189 Author chain P; PDBConstruct 1–189; UniProt 1–189 Author chain QA; PDBConstruct 1–189; UniProt 1–189 Author chain QB; PDBConstruct 1–189; UniProt 1–189 Author chain R; PDBConstruct 1–189; UniProt 1–189 Author chain SA; PDBConstruct 1–189; UniProt 1–189 Author chain SB; PDBConstruct 1–189; UniProt 1–189 Author chain T; PDBConstruct 1–189; UniProt 1–189 Author chain UA; PDBConstruct 1–189; UniProt 1–189 Author chain W; PDBConstruct 1–189; UniProt 1–189 Author chain WA; PDBConstruct 1–189; UniProt 1–189 Author chain Y; PDBConstruct 1–189; UniProt 1–189 Author chain YA; PDBConstruct 1–189; UniProt 1–189

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 6tz4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6tz4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6tz4
Deposition date deposition_date2019-08-10
Structure title titleCryoEM reconstruction of membrane-bound ESCRT-III filament composed of CHMP1B+IST1 (right-handed)
Keywords keywordsmembrane remodeling, membrane-bound protein filament, ESCRT-III, LIPID BINDING PROTEIN; LIPID BINDING PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier
Radius of gyration Rg (electron density) rg_electron101.00
Forward intensity I(0) i027815700000.00
Molecular weight molecular_weight1417900.0 kDa
Excluded volume excluded_volume1775800 ų
Envelope volume envelope_volume3619000 ų
Hydration-shell volume shell_volume287590 ų
Envelope diameter envelope_diameter271.8
Shell Rg shell_rg116.70
Envelope Rg envelope_rg91.33
Shape Rg shape_rg101.10
Total Rg total_rg100.70
Total atoms total_atoms99216
Residues n_residues12852
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 dmax235.8
Rg (real space) rg_real99.64
Rg uncertainty (real space) rg_real_error0.35
I(0) (real space) i0_real2.6660e+10
I(0) uncertainty (real space) i0_real_error4.3310e+08
Rg (reciprocal space) rg_reciprocal104.70
I(0) (reciprocal space) i0_reciprocal28070000000.0000
Solution quality estimate total_estimate0.8789
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary172.9
Skewness Skewness skewness-0.251
Kurtosis Kurtosis kurtosis-0.986
Angular range angular_range— – 0.0750 −1
Current regularization parameter α current_alpha1.5160
Highest regularization parameter α highest_alpha2047000000.0000
Real-space data points n_real_points16
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.963; Stabil: 0.927; Sysdev: 1.000; Positv: 1.000; Valcen: 0.762; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)