[English] 日本語
Yorodumi
- PDB-7pls: Cryo-EM structures of human fucosidase FucA1 reveal insight into ... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 7pls
TitleCryo-EM structures of human fucosidase FucA1 reveal insight into substate recognition and catalysis.
ComponentsTissue alpha-L-fucosidase
KeywordsHYDROLASE / Fucosidase
Function / homology
Function and homology information


alpha-L-fucosidase / glycolipid catabolic process / Reactions specific to the complex N-glycan synthesis pathway / alpha-L-fucosidase activity / fucose metabolic process / glycoside catabolic process / lysosomal lumen / azurophil granule lumen / lysosome / intracellular membrane-bounded organelle ...alpha-L-fucosidase / glycolipid catabolic process / Reactions specific to the complex N-glycan synthesis pathway / alpha-L-fucosidase activity / fucose metabolic process / glycoside catabolic process / lysosomal lumen / azurophil granule lumen / lysosome / intracellular membrane-bounded organelle / Neutrophil degranulation / extracellular exosome / extracellular region / membrane / cytoplasm
Similarity search - Function
Glycoside hydrolase, family 29, conserved site / Alpha-L-fucosidase putative active site. / Alpha-L-fucosidase, C-terminal / Alpha-L-fucosidase C-terminal domain / Alpha-L-fucosidase, metazoa-type / Glycoside hydrolase, family 29 / Alpha-L-fucosidase / Alpha-L-fucosidase / Golgi alpha-mannosidase II / Glycosyl hydrolase, all-beta ...Glycoside hydrolase, family 29, conserved site / Alpha-L-fucosidase putative active site. / Alpha-L-fucosidase, C-terminal / Alpha-L-fucosidase C-terminal domain / Alpha-L-fucosidase, metazoa-type / Glycoside hydrolase, family 29 / Alpha-L-fucosidase / Alpha-L-fucosidase / Golgi alpha-mannosidase II / Glycosyl hydrolase, all-beta / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel / Alpha-Beta Barrel / Immunoglobulin-like / Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Tissue alpha-L-fucosidase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.49 Å
AuthorsArmstrong, Z. / Meek, R.W. / Wu, L. / Blaza, J.N. / Davies, G.J.
Funding support United Kingdom, 4items
OrganizationGrant numberCountry
Royal Society180016 United Kingdom
Biotechnology and Biological Sciences Research Council (BBSRC)R001162 United Kingdom
UK Research and Innovation (UKRI)T040742 United Kingdom
Wellcome Trust218579 United Kingdom
CitationJournal: Structure / Year: 2022
Title: Cryo-EM structures of human fucosidase FucA1 reveal insight into substrate recognition and catalysis.
Authors: Zachary Armstrong / Richard W Meek / Liang Wu / James N Blaza / Gideon J Davies /
Abstract: Enzymatic hydrolysis of α-L-fucose from fucosylated glycoconjugates is consequential in bacterial infections and the neurodegenerative lysosomal storage disorder fucosidosis. Understanding human α- ...Enzymatic hydrolysis of α-L-fucose from fucosylated glycoconjugates is consequential in bacterial infections and the neurodegenerative lysosomal storage disorder fucosidosis. Understanding human α-L-fucosidase catalysis, in an effort toward drug design, has been hindered by the absence of three-dimensional structural data for any animal fucosidase. Here, we have used cryoelectron microscopy (cryo-EM) to determine the structure of human lysosomal α-L-fucosidase (FucA1) in both an unliganded state and in complex with the inhibitor deoxyfuconojirimycin. These structures, determined at 2.49 Å resolution, reveal the homotetrameric structure of FucA1, the architecture of the catalytic center, and the location of both natural population variations and disease-causing mutations. Furthermore, this work has conclusively identified the hitherto contentious identity of the catalytic acid/base as aspartate-276, representing a shift from both the canonical glutamate acid/base residue and a previously proposed glutamate residue. These findings have furthered our understanding of how FucA1 functions in both health and disease.
History
DepositionSep 1, 2021Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 10, 2022Provider: repository / Type: Initial release
Revision 1.1Oct 19, 2022Group: Database references / Category: citation / Item: _citation.journal_volume / _citation.page_first
Revision 1.2Oct 23, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Tissue alpha-L-fucosidase
B: Tissue alpha-L-fucosidase
C: Tissue alpha-L-fucosidase
D: Tissue alpha-L-fucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)202,9878
Polymers202,1034
Non-polymers8854
Water93752
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: light scattering
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area10360 Å2
ΔGint-44 kcal/mol
Surface area60810 Å2
MethodPISA

-
Components

#1: Protein
Tissue alpha-L-fucosidase / Alpha-L-fucosidase I / Alpha-L-fucoside fucohydrolase 1 / Alpha-L-fucosidase 1


Mass: 50525.625 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: FUCA1, Nbla10230 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P04066, alpha-L-fucosidase
#2: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 52 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestN
Has protein modificationY

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

-
Sample preparation

ComponentName: FucA1 homotetramer / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 225 kDa/nm / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Trichoplusia ni (cabbage looper)
Buffer solutionpH: 7.4
Buffer component
IDConc.NameFormulaBuffer-ID
120 mM4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES)C8H18N2O4S1
2200 mMSodium chlorideNaCl1
31 mMDithiothreitolC4H10O2S21
SpecimenConc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 295 K / Details: blot for 2 seconds before plunging

-
Electron microscopy imaging

MicroscopyModel: TFS GLACIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

-
Processing

EM software
IDNameVersionCategory
7Coot0.8.9.2model fitting
12RELION3.1.23D reconstruction
13PHENIX1.19model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: D2 (2x2 fold dihedral)
3D reconstructionResolution: 2.49 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 171847 / Symmetry type: POINT

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more