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- PDB-7wwb: Choline transporter-like protein 1 -

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Basic information

Entry
Database: PDB / ID: 7wwb
TitleCholine transporter-like protein 1
ComponentsCholine transporter-like protein 1
KeywordsTRANSPORT PROTEIN / choline binding / cholesterol binding / transporter
Function / homology
Function and homology information


Transport of bile salts and organic acids, metal ions and amine compounds / choline transmembrane transporter activity / Choline catabolism / choline catabolic process / choline transport / phosphatidylcholine biosynthetic process / Synthesis of PC / transmembrane transporter activity / transport across blood-brain barrier / transmembrane transport ...Transport of bile salts and organic acids, metal ions and amine compounds / choline transmembrane transporter activity / Choline catabolism / choline catabolic process / choline transport / phosphatidylcholine biosynthetic process / Synthesis of PC / transmembrane transporter activity / transport across blood-brain barrier / transmembrane transport / mitochondrial outer membrane / membrane => GO:0016020 / mitochondrion / extracellular exosome / nucleoplasm / membrane / plasma membrane / cytosol
Similarity search - Function
Choline transporter-like / Plasma-membrane choline transporter
Similarity search - Domain/homology
CHOLINE ION / CHOLESTEROL / Choline transporter-like protein 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.86 Å
AuthorsChi, X.M. / Zhou, Q.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31971123 China
CitationJournal: Structure / Year: 2022
Title: Rational exploration of fold atlas for human solute carrier proteins.
Authors: Tengyu Xie / Ximin Chi / Bangdong Huang / Fangfei Ye / Qiang Zhou / Jing Huang /
Abstract: The solute carrier (SLC) superfamily is the largest group of proteins responsible for the transmembrane transport of substances in human cells. It includes more than 400 members that are organized ...The solute carrier (SLC) superfamily is the largest group of proteins responsible for the transmembrane transport of substances in human cells. It includes more than 400 members that are organized into 65 families according to their physiological function and sequence similarity. Different families of SLCs can adopt the same or different folds that determine the mechanism and reflect the evolutionary relationship between SLC members. Analysis of structural data in the literature before this work showed 13 different folds in the SLC superfamily covering 40 families and 343 members. To further study their mechanism, we systematically explored the SLC superfamily to look for more folds. Based on our results, at least three new folds are found for the SLC superfamily, one of which is in the choline-like transporter family (SLC44) and has been experimentally verified. Our work has laid a foundation and provided important insights for the systematic and comprehensive study of the structure and function of SLC.
History
DepositionFeb 12, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 22, 2022Provider: repository / Type: Initial release
Revision 1.1Sep 14, 2022Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Choline transporter-like protein 1
B: Choline transporter-like protein 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)147,7216
Polymers146,7402
Non-polymers9824
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Choline transporter-like protein 1 / CDw92 / Solute carrier family 44 member 1


Mass: 73369.844 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SLC44A1, CD92, CDW92, CTL1 / Production host: Homo sapiens (human) / References: UniProt: Q8WWI5
#2: Chemical ChemComp-CHT / CHOLINE ION / Choline


Mass: 104.171 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C5H14NO / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical ChemComp-CLR / CHOLESTEROL / Cholesterol


Mass: 386.654 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C27H46O / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

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Experimental details

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Experiment

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

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Sample preparation

ComponentName: Choline transporter-like protein 1 in complex with choline
Type: CELL / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1900 nm / Nominal defocus min: 1200 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.14_3260: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.86 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 144295 / Symmetry type: POINT

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