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- EMDB-24785: Cryo-EM structure of human GlcNAc-1-phosphotransferase A2B2 subcomplex -

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Basic information

Entry
Database: EMDB / ID: EMD-24785
TitleCryo-EM structure of human GlcNAc-1-phosphotransferase A2B2 subcomplex
Map data
Sample
  • Complex: GlcNAc-1-phosphotransferase
    • Protein or peptide: N-acetylglucosamine-1-phosphotransferase subunits alpha/betaN-acetylglucosamine-1-phosphate transferase
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Function / homology
Function and homology information


UDP-N-acetylglucosamine-lysosomal-enzyme N-acetylglucosaminephosphotransferase / N-glycan processing to lysosome / secretion of lysosomal enzymes / UDP-N-acetylglucosamine-lysosomal-enzyme N-acetylglucosaminephosphotransferase activity / carbohydrate phosphorylation / lysosome organization / establishment of localization in cell / Golgi membrane / calcium ion binding / Golgi apparatus
Similarity search - Function
: / N-acetylglucosamine-1-phosphotransferase subunit alpha/beta, regulatory domain / Putative GlcNAc-1 phosphotransferase regulatory domain / Stealth protein CR2, conserved region 2 / Stealth protein CR4, conserved region 4 / Stealth protein CR3, conserved region 3 / Stealth protein CR1, conserved region 1 / Stealth protein CR2, conserved region 2 / Stealth protein CR1, conserved region 1 / Stealth protein CR3, conserved region 3 ...: / N-acetylglucosamine-1-phosphotransferase subunit alpha/beta, regulatory domain / Putative GlcNAc-1 phosphotransferase regulatory domain / Stealth protein CR2, conserved region 2 / Stealth protein CR4, conserved region 4 / Stealth protein CR3, conserved region 3 / Stealth protein CR1, conserved region 1 / Stealth protein CR2, conserved region 2 / Stealth protein CR1, conserved region 1 / Stealth protein CR3, conserved region 3 / Stealth protein CR4, conserved region 4 / DMAP1-binding Domain / DMAP1-binding Domain / DMAP1-binding domain / DMAP1-binding domain profile. / Notch-like domain superfamily / LNR (Lin-12/Notch) repeat profile. / LNR domain / Notch domain / Domain found in Notch and Lin-12 / EF-Hand 1, calcium-binding site / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain
Similarity search - Domain/homology
N-acetylglucosamine-1-phosphotransferase subunits alpha/beta
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsLi H
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)CA231466 United States
CitationJournal: Nat Struct Mol Biol / Year: 2022
Title: Bound nucleotide can control the dynamic architecture of monomeric actin.
Authors: Rustam Ali / Jacob A Zahm / Michael K Rosen /
Abstract: Polymerization of actin into cytoskeletal filaments is coupled to its bound adenine nucleotides. The mechanism by which nucleotide modulates actin functions has not been evident from analyses of ATP- ...Polymerization of actin into cytoskeletal filaments is coupled to its bound adenine nucleotides. The mechanism by which nucleotide modulates actin functions has not been evident from analyses of ATP- and ADP-bound crystal structures of the actin monomer. We report that NMR chemical shift differences between the two forms are globally distributed. Furthermore, microsecond-millisecond motions are spread throughout the molecule in the ATP form, but largely confined to subdomains 1 and 2, and the nucleotide binding site in the ADP form. Through these motions, the ATP- and ADP-bound forms sample different high-energy conformations. A deafness-causing, fast-nucleating actin mutant populates the high-energy conformer of ATP-actin more than the wild-type protein, suggesting that this conformer may be on the pathway to nucleation. Together, the data suggest a model in which differential sampling of a nucleation-compatible form of the actin monomer may contribute to control of actin filament dynamics by nucleotide.
History
DepositionAug 30, 2021-
Header (metadata) releaseMar 30, 2022-
Map releaseMar 30, 2022-
UpdateApr 27, 2022-
Current statusApr 27, 2022Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_24785.png

Downloads & links

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Map

FileDownload / File: emd_24785.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.828 Å
Density
Contour LevelBy AUTHOR: 0.21
Minimum - Maximum-2.531388 - 3.7701678
Average (Standard dev.)0.00515184 (±0.0846673)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 211.968 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_24785_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_24785_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : GlcNAc-1-phosphotransferase

EntireName: GlcNAc-1-phosphotransferase
Components
  • Complex: GlcNAc-1-phosphotransferase
    • Protein or peptide: N-acetylglucosamine-1-phosphotransferase subunits alpha/betaN-acetylglucosamine-1-phosphate transferase
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: GlcNAc-1-phosphotransferase

SupramoleculeName: GlcNAc-1-phosphotransferase / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)

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Macromolecule #1: N-acetylglucosamine-1-phosphotransferase subunits alpha/beta

MacromoleculeName: N-acetylglucosamine-1-phosphotransferase subunits alpha/beta
type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
EC number: UDP-N-acetylglucosamine-lysosomal-enzyme N-acetylglucosaminephosphotransferase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 134.7875 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString: DEDQVDPRLI DGKWSRDQYH VLFDSYRDNI AGKSFQNRLC LPMPIDVVYT WVNGTDLELL KELQQVREQM EEEQKAMREI LGKNTTEPT KKSEKQLECL LTHCIKVPML VLDPALPANI TLKDLPSLYP SFHSASDIFN VAKPKNPSTN VSVVVFDSTK D VEDAHSGL ...String:
DEDQVDPRLI DGKWSRDQYH VLFDSYRDNI AGKSFQNRLC LPMPIDVVYT WVNGTDLELL KELQQVREQM EEEQKAMREI LGKNTTEPT KKSEKQLECL LTHCIKVPML VLDPALPANI TLKDLPSLYP SFHSASDIFN VAKPKNPSTN VSVVVFDSTK D VEDAHSGL LKGNSRQTVW RGYLTTDKEV PGLVLMQDLA FLSGFPPTFK ETNQLKTKLP ENLSSKVKLL QLYSEASVAL LK LNNPKDF QELNKQTKKN MTIDGKELTI SPAYLLWDLS AISQSKQDED ISASRFEDNE ELRYSLRSIE RHAPWVRNIF IVT NGQIPS WLNLDNPRVT IVTHQDVFRN LSHLPTFSSP AIESHIHRIE GLSQKFIYLN DDVMFGKDVW PDDFYSHSKG QKVY LTWPV PNCAEGCPGS WIKDGYCDKA CNNSACDWDG GDCSGNSGGS RYIAGGGGTG SIGVGQPWQF GGGINSVSYC NQGCA NSWL ADKFCDQACN VLSCGFDAGD CGQDHFHELY KVILLPNQTH YIIPKGECLP YFSFAEVAKR GVEGAYSDNP IIRHAS IAN KWKTIHLIMH SGMNATTIHF NLTFQNTNDE EFKMQITVEV DTREGPKLNS TAQKGYENLV SPITLLPEAE ILFEDIP KE KRFPKFKRHD VNSTRRAQEE VKIPLVNISL LPKDAQLSLN TLDLQLEHGD ITLKGYNLSK SALLRSFLMN SQHAKIKN Q AIITDETNDS LVAPQEKQVH KSILPNSLGV SERLQRLTFP AVSVKVNGHD QGQNPPLDLE TTARFRVETH TQKTIGGNV TKEKPPSLIV PLESQMTKEK KITGKEKENS RMEENAENHI GVTEVLLGRK LQHYTDSYLG FLPWEKKKYF QDLLDEEESL KTQLAYFTD SKNRARYKRD TFADSLRYVN KILNSKFGFT SRKVPAHMPH MIDRIVMQEL QDMFPEEFDK TSFHKVRHSE D MQFAFSYF YYLMSAVQPL NISQVFDEVD TDQSGVLSDR EIRTLATRIH ELPLSLQDLT GLEHMLINCS KMLPADITQL NN IPPTQES YYDPNLPPVT KSLVTNCKPV TDKIHKAYKD KNKYRFEIMG EEEIAFKMIR TNVSHVVGQL DDIRKNPRKF VCL NDNIDH NHKDAQTVKA VLRDFYESMF PIPSQFELPR EYRNRFLHMH ELQEWRAYRD KLK

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Macromolecule #3: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 3 / 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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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.15 mg/mL
BufferpH: 7.8
Component:
ConcentrationFormulaName
75.0 mMKClpotassium chloride
20.0 mMHEPES
10.0 mM2-mercaptoethanol
GridModel: Quantifoil R2/1 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 299 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: OTHER / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal magnification: 105000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
TemperatureMin: 193.0 K / Max: 193.0 K
Alignment procedureComa free - Residual tilt: 0.05 mrad
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number grids imaged: 1 / Number real images: 13320 / Average exposure time: 1.5 sec. / Average electron dose: 66.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 5186047
CTF correctionSoftware - Name: CTFFIND (ver. 4.10)
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.1) / Number images used: 66173
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementProtocol: AB INITIO MODEL
Output model

PDB-7s06:
Cryo-EM structure of human GlcNAc-1-phosphotransferase A2B2 subcomplex

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