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9QU4

Cryo-EM structure of the inward-open choline-bound state of choline/ethanolamine transporter FLVCR2

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Immunoglobulin G-binding protein A,Choline/ethanolamine transporter FLVCR2polymer59766364.51UniProt (P38507)
UniProt (Q9UPI3)
Pfam (PF02216)
Pfam (PF07690)
UniProt (by SIFTS) (P02976)
Homo sapiens (human)IgG-binding protein A,Staphylococcal protein A,SpA,Calcium-chelate transporter,CCT,Feline leukemia virus subgroup C receptor-related protein 2,Heme transporter FLVCR2
2B
(A)
CHOLINE IONnon-polymer104.21Chemie (CHT)
Sequence modifications
A: -58 - 78 (UniProt: P38507)
PDBExternal DatabaseDetails
Met -65-initiating methionine
Gly -64-expression tag
Pro -63-expression tag
Met -62-expression tag
Val -61-expression tag
Asn -60-expression tag
Glu -59-expression tag
Ser -46Asn 171conflict
Leu -45Met 172conflict
Ala -35Gly 182conflict
-Glu 206deletion
-Ser 207deletion
-Gln 208deletion
-Ala 209deletion
-Pro 210deletion
-Lys 211deletion
-Ala 212deletion
-Asp 213deletion
-Asn 214deletion
-Lys 215deletion
-Phe 216deletion
-Asn 217deletion
-Lys 218deletion
Ala -8Asn 222conflict
Ala 10Gly 240conflict
-Asp 264deletion
-Ala 265deletion
-Gln 266deletion
-Ala 267deletion
-Pro 268deletion
-Lys 269deletion
-Ala 270deletion
-Asp 271deletion
-Asn 272deletion
-Lys 273deletion
-Phe 274deletion
-Asn 275deletion
-Lys 276deletion
Ala 37Asn 280conflict
Asn 49Thr 292conflict
Ala 55Gly 298conflict
Gln 66Val 309conflict
Ala 68Lys 311conflict
Asn 69Glu 312conflict
Leu 70Ile 313conflict
Glu 79-linker
Leu 80-linker
Gln 81-linker
Lys 82-linker
A: 83 - 526 (UniProt: Q9UPI3)
PDBExternal DatabaseDetails
Gly 527-expression tag
Leu 528-expression tag
Val 529-expression tag
Pro 530-expression tag
Arg 531-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight66364.5
Non-Polymers*Number of molecules1
Total formula weight104.2
All*Total formula weight66468.7
*Water molecules are not included.

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PDB entries from 2026-01-28

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