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- EMDB-29019: Alpha1/BetaB Heteromeric Glycine Receptor in 1 mM Glycine 20 uM I... -

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Basic information

Entry
Database: EMDB / ID: EMD-29019
TitleAlpha1/BetaB Heteromeric Glycine Receptor in 1 mM Glycine 20 uM Ivermectin State
Map data
Sample
  • Complex: Zebrafish Alpha1 BetaB Heteromeric Glycine Receptor
    • Protein or peptide: Glycine receptor subunit alphaZ1
    • Protein or peptide: Glycine receptor beta subunit 2
  • Ligand: GLYCINE
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: (2aE,4E,5'S,6S,6'R,7S,8E,11R,13R,15S,17aR,20R,20aR,20bS)-6'-[(2S)-butan-2-yl]-20,20b-dihydroxy-5',6,8,19-tetramethyl-17 -oxo-3',4',5',6,6',10,11,14,15,17,17a,20,20a,20b-tetradecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacy clooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside
  • Ligand: 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: PALMITIC ACID
  • Ligand: DECANE
KeywordsGlycine / Channel / Ivermectin / Pentameric / MEMBRANE PROTEIN
Function / homology
Function and homology information


Neurotransmitter receptors and postsynaptic signal transmission / extracellularly glycine-gated ion channel activity / extracellularly glycine-gated chloride channel activity / synaptic transmission, glycinergic / cellular response to ethanol / cellular response to zinc ion / regulation of neuron differentiation / glycine binding / chloride channel complex / ligand-gated monoatomic ion channel activity ...Neurotransmitter receptors and postsynaptic signal transmission / extracellularly glycine-gated ion channel activity / extracellularly glycine-gated chloride channel activity / synaptic transmission, glycinergic / cellular response to ethanol / cellular response to zinc ion / regulation of neuron differentiation / glycine binding / chloride channel complex / ligand-gated monoatomic ion channel activity / neuropeptide signaling pathway / response to amino acid / monoatomic ion transport / chloride transmembrane transport / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / central nervous system development / cellular response to amino acid stimulus / protein localization / transmembrane signaling receptor activity / perikaryon / postsynaptic membrane / neuron projection / dendrite / synapse / zinc ion binding / membrane / plasma membrane
Similarity search - Function
: / Glycine receptor beta / Glycine receptor alpha1 / Glycine receptor alpha / Gamma-aminobutyric acid A receptor/Glycine receptor alpha / Neurotransmitter-gated ion-channel, conserved site / Neurotransmitter-gated ion-channels signature. / Neurotransmitter-gated ion-channel transmembrane domain / Neurotransmitter-gated ion-channel transmembrane region / Neurotransmitter-gated ion-channel transmembrane domain superfamily ...: / Glycine receptor beta / Glycine receptor alpha1 / Glycine receptor alpha / Gamma-aminobutyric acid A receptor/Glycine receptor alpha / Neurotransmitter-gated ion-channel, conserved site / Neurotransmitter-gated ion-channels signature. / Neurotransmitter-gated ion-channel transmembrane domain / Neurotransmitter-gated ion-channel transmembrane region / Neurotransmitter-gated ion-channel transmembrane domain superfamily / Neuronal acetylcholine receptor / Neurotransmitter-gated ion-channel / Neurotransmitter-gated ion-channel ligand-binding domain / Neurotransmitter-gated ion-channel ligand-binding domain superfamily / Neurotransmitter-gated ion-channel ligand binding domain
Similarity search - Domain/homology
Glycine receptor subunit alphaZ1 / Glycine receptor beta subunit 2
Similarity search - Component
Biological speciesDanio rerio (zebrafish)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.0 Å
AuthorsGibbs E / Chakrapani S
Funding support United States, 3 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)1F32GM142233 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM134896 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM134896-2S1 United States
Citation
Journal: Nat Chem Biol / Year: 2024
Title: High-throughput reprogramming of an NRPS condensation domain.
Authors: Ines B Folger / Natália F Frota / Angelos Pistofidis / David L Niquille / Douglas A Hansen / T Martin Schmeing / Donald Hilvert /
Abstract: Engineered biosynthetic assembly lines could revolutionize the sustainable production of bioactive natural product analogs. Although yeast display is a proven, powerful tool for altering the ...Engineered biosynthetic assembly lines could revolutionize the sustainable production of bioactive natural product analogs. Although yeast display is a proven, powerful tool for altering the substrate specificity of gatekeeper adenylation domains in nonribosomal peptide synthetases (NRPSs), comparable strategies for other components of these megaenzymes have not been described. Here we report a high-throughput approach for engineering condensation (C) domains responsible for peptide elongation. We show that a 120-kDa NRPS module, displayed in functional form on yeast, can productively interact with an upstream module, provided in solution, to produce amide products tethered to the yeast surface. Using this system to screen a large C-domain library, we reprogrammed a surfactin synthetase module to accept a fatty acid donor, increasing catalytic efficiency for this noncanonical substrate >40-fold. Because C domains can function as selectivity filters in NRPSs, this methodology should facilitate the precision engineering of these molecular assembly lines.
#1: Journal: Nat Commun / Year: 2023
Title: Conformational transitions and allosteric modulation in a heteromeric glycine receptor
Authors: Gibbs E / Klemm E / Seiferth D / Kumar A / Ilca SL / Biggin PC / Chakrapani S
History
DepositionDec 5, 2022-
Header (metadata) releaseMar 22, 2023-
Map releaseMar 22, 2023-
UpdateFeb 28, 2024-
Current statusFeb 28, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_29019.png

Downloads & links

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Map

FileDownload / File: emd_29019.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.84 Å
Density
Contour LevelBy AUTHOR: 0.11
Minimum - Maximum-0.38373664 - 0.7391638
Average (Standard dev.)0.0009995847 (±0.024768574)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 251.99998 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_29019_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_29019_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_29019_half_map_2.map
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Sample components

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Entire : Zebrafish Alpha1 BetaB Heteromeric Glycine Receptor

EntireName: Zebrafish Alpha1 BetaB Heteromeric Glycine Receptor
Components
  • Complex: Zebrafish Alpha1 BetaB Heteromeric Glycine Receptor
    • Protein or peptide: Glycine receptor subunit alphaZ1
    • Protein or peptide: Glycine receptor beta subunit 2
  • Ligand: GLYCINE
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: (2aE,4E,5'S,6S,6'R,7S,8E,11R,13R,15S,17aR,20R,20aR,20bS)-6'-[(2S)-butan-2-yl]-20,20b-dihydroxy-5',6,8,19-tetramethyl-17 -oxo-3',4',5',6,6',10,11,14,15,17,17a,20,20a,20b-tetradecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacy clooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside
  • Ligand: 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: PALMITIC ACID
  • Ligand: DECANE

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Supramolecule #1: Zebrafish Alpha1 BetaB Heteromeric Glycine Receptor

SupramoleculeName: Zebrafish Alpha1 BetaB Heteromeric Glycine Receptor / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Danio rerio (zebrafish)
Molecular weightTheoretical: 250 KDa

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Macromolecule #1: Glycine receptor subunit alphaZ1

MacromoleculeName: Glycine receptor subunit alphaZ1 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Danio rerio (zebrafish)
Molecular weightTheoretical: 52.537598 KDa
Recombinant expressionOrganism: Spodoptera aff. frugiperda 1 BOLD-2017 (butterflies/moths)
SequenceString: MFALGIYLWE TIVFFSLAAS QQAAARKAAS PMPPSEFLDK LMGKVSGYDA RIRPNFKGPP VNVTCNIFIN SFGSIAETTM DYRVNIFLR QQWNDPRLAY SEYPDDSLDL DPSMLDSIWK PDLFFANEKG ANFHEVTTDN KLLRISKNGN VLYSIRITLV L ACPMDLKN ...String:
MFALGIYLWE TIVFFSLAAS QQAAARKAAS PMPPSEFLDK LMGKVSGYDA RIRPNFKGPP VNVTCNIFIN SFGSIAETTM DYRVNIFLR QQWNDPRLAY SEYPDDSLDL DPSMLDSIWK PDLFFANEKG ANFHEVTTDN KLLRISKNGN VLYSIRITLV L ACPMDLKN FPMDVQTCIM QLESFGYTMN DLIFEWDEKG AVQVADGLTL PQFILKEEKD LRYCTKHYNT GKFTCIEARF HL ERQMGYY LIQMYIPSLL IVILSWVSFW INMDAAPARV GLGITTVLTM TTQSSGSRAS LPKVSYVKAI DIWMAVCLLF VFS ALLEYA AVNFIARQHK ELLRFQRRRR HLKEDEAGDG RFSFAAYGMG PACLQAKDGM AIKGNNNNAP TSTNPPEKTV EEMR KLFIS RAKRIDTVSR VAFPLVFLIF NIFYWITYKI IRSEDIHKQL VPRGSHHHHH HHH

UniProtKB: Glycine receptor subunit alphaZ1

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Macromolecule #2: Glycine receptor beta subunit 2

MacromoleculeName: Glycine receptor beta subunit 2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Danio rerio (zebrafish)
Molecular weightTheoretical: 65.820281 KDa
Recombinant expressionOrganism: Spodoptera aff. frugiperda 1 BOLD-2017 (butterflies/moths)
SequenceString: MKALKVIFML LIICLWMEGG FTKEKSAKKW SHPQFEKGGG SGGGSGGGSW SHPQFEKGGG SGGGSGGGSW SHPQFEKGGG SGGGSGGGS WSHPQFEKEN LYFQGEKSAK KGKKKGKQVY CPSQLSSEDL ARVPANSTSN ILNKLLITYD PRIRPNFKGI P VEDRVNIF ...String:
MKALKVIFML LIICLWMEGG FTKEKSAKKW SHPQFEKGGG SGGGSGGGSW SHPQFEKGGG SGGGSGGGSW SHPQFEKGGG SGGGSGGGS WSHPQFEKEN LYFQGEKSAK KGKKKGKQVY CPSQLSSEDL ARVPANSTSN ILNKLLITYD PRIRPNFKGI P VEDRVNIF INSFGSIQET TMDYRVNIFL RQRWNDPRLR LPQDFKSDSL TVDPKMFKCL WKPDLFFANE KSANFHDVTQ EN ILLFIFR NGDVLISMRL SVTLSCPLDL TLFPMDTQRC KMQLESFGYT TDDLQFMWQS GDPVQMDEIA LPQFDIKQED IEY GNCTKY YAGTGYYTCV EVIFTLRRQV GFYMMGVYAP TLLIVVLSWL SFWINPDASA ARVPLGILSV LSLSSECTSL ASEL PKVSY VKAIDIWLIA CLLFGFASLV EYAVVQVMLN SPKLLEAERA KIATKEKAEG KTPAKNTING MGSTPIHVST LQVTE TRCK KVCTSKSDLR TNDFSIVGSL PRDFELSNFD CYGKPIEVGS AFSKSQAKNN KKPPPPKPVI PSAAKRIDLY ARALFP FSF LFFNVIYWSV YLENLYFQGT ETSQVAPA

UniProtKB: Glycine receptor beta subunit 2

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Macromolecule #3: GLYCINE

MacromoleculeName: GLYCINE / type: ligand / ID: 3 / Number of copies: 5 / Formula: GLY
Molecular weightTheoretical: 75.067 Da
Chemical component information

ChemComp-GLY:
GLYCINE / Glycine

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Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 6 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine

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Macromolecule #5: (2aE,4E,5'S,6S,6'R,7S,8E,11R,13R,15S,17aR,20R,20aR,20bS)-6'-[(2S)...

MacromoleculeName: (2aE,4E,5'S,6S,6'R,7S,8E,11R,13R,15S,17aR,20R,20aR,20bS)-6'-[(2S)-butan-2-yl]-20,20b-dihydroxy-5',6,8,19-tetramethyl-17 -oxo-3',4',5',6,6',10,11,14,15,17,17a,20,20a,20b-tetradecahydro-2H,7H- ...Name: (2aE,4E,5'S,6S,6'R,7S,8E,11R,13R,15S,17aR,20R,20aR,20bS)-6'-[(2S)-butan-2-yl]-20,20b-dihydroxy-5',6,8,19-tetramethyl-17 -oxo-3',4',5',6,6',10,11,14,15,17,17a,20,20a,20b-tetradecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacy clooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside
type: ligand / ID: 5 / Number of copies: 5 / Formula: IVM
Molecular weightTheoretical: 875.093 Da

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Macromolecule #6: 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE

MacromoleculeName: 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE / type: ligand / ID: 6 / Number of copies: 8 / Formula: PX4
Molecular weightTheoretical: 678.94 Da
Chemical component information

ChemComp-PX4:
1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE / DMPC, phospholipid*YM / Dimyristoylphosphatidylcholine

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Macromolecule #7: PALMITIC ACID

MacromoleculeName: PALMITIC ACID / type: ligand / ID: 7 / Number of copies: 28 / Formula: PLM
Molecular weightTheoretical: 256.424 Da
Chemical component information

ChemComp-PLM:
PALMITIC ACID / Palmitic acid

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Macromolecule #8: DECANE

MacromoleculeName: DECANE / type: ligand / ID: 8 / Number of copies: 1 / Formula: D10
Molecular weightTheoretical: 142.282 Da
Chemical component information

ChemComp-D10:
DECANE / Decane

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration.1 mg/mL
BufferpH: 8
Component:
ConcentrationFormulaName
150.0 mMNaClSodium chlorideSodium Chloride
20.0 mMC8H18N2O4SHEPES
1.0 mMC24H46O11Dodecyl-D-Maltopyranoside
1.0 mMC2H5NO2Glycine
20.0 uMC48H74O14Ivermectin
0.1 %C2H6OSDMSODimethyl sulfoxide
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
DetailsSingle Particles

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER / Details: AlphaFold2
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 3.3.2)
Final 3D classificationNumber classes: 1 / Avg.num./class: 204512 / Software - Name: RELION (ver. 4.0)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 3.3.2)
Final reconstructionNumber classes used: 1 / Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.0 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.3.2) / Software - details: Non-uniform Refinement / Number images used: 204512
FSC plot (resolution estimation)

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