General Information of Drug Transporter (DT)
DT ID DTD0042 Transporter Info
Gene Name ABCA4
Transporter Name ATP-binding cassette sub-family A member 4
Gene ID
24
UniProt ID
P78363
Modelled Structures of This DT
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Detail Information of Structural Model
Method Homology modeling
Template PDB 5XJY_A Identity 50.35%
Performance Minimized Score -1123.451 kcal/mol
Ramachandra Favored

Poor

QMEANBrane Quality

Medium

Ramachandran Plot
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Ramz Z Score -2.33 ±0.16
Residues in Favored Region 2033 Ramachandran favored 90.20%
Number of Outliers 62 Ramachandran outliers 2.75%
Local Quality
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QMEANBrane Score 0.67
AlphaFold Protein Structure Database
SWISS-MODEL Database
Experimental Structures of This DT
PDB ID Scanning Method Resolution Expression System Details Ref
7E7I EM 3.3 Å Homo sapiens
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[1]
Structure
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Corresponding chain A
Sequence Length 2317 Mutation No
7E7O EM 3.4 Å Homo sapiens
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[1]
Structure
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Corresponding chain A
Sequence Length 2317 Mutation No
7E7Q EM 3.3 Å Homo sapiens
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[1]
Structure
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Corresponding chain A
Sequence Length 2317 Mutation No
7LKP EM 3.27 Å Homo sapiens
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[2]
Structure
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Corresponding chain A
Sequence Length 2273 Mutation No
7LKZ EM 3.27 Å Homo sapiens
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[2]
Structure
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Corresponding chain A
Sequence Length 2273 Mutation No
7M1P EM 3.6 Å Homo sapiens
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[3]
Structure
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Corresponding chain A
Sequence Length 2273 Mutation No
7M1Q EM 2.92 Å Homo sapiens
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[3]
Structure
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Corresponding chain A
Sequence Length 2273 Mutation No
8F5B EM 3.95 Å Homo sapiens
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[4]
Structure
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Corresponding chain A
Sequence Length 2273 Mutation No
References
1 Structural basis of substrate recognition and translocation by human ABCA4. Nat Commun. 2021;12(1):3853.
2 Molecular structures of the eukaryotic retinal importer ABCA4. Elife. 2021;10.
3 Cryo-EM structures of the ABCA4 importer reveal mechanisms underlying substrate binding and Stargardt disease. Nat Commun. 2021;12(1):5902.
4 Structural and functional characterization of the nucleotide-binding domains of ABCA4 and their role in Stargardt disease. J Biol Chem. 2024;300(9):107666.

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