Structure of LAT1-CD98hc in complex with L-Phe, focused on TMD. Determined by electron microscopy at 4.12 Å resolution. Released 12 Feb 2025.
Explore 8KDN in 3D Show helices and sheets RCSB PDB PDBe
8KDN contains 29 α-helices and 4 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 166-172 | 7 | |
| α-helix | 176-206 | 31 | |
| α-helix | 208-212 | 5 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| β-strand | 50 | 1 | 1 |
| α-helix | 52-64 | 13 | |
| α-helix | 67-70 | 4 | |
| α-helix | 73-79 | 7 | |
| α-helix | 82-109 | 28 | |
| α-helix | 115-124 | 10 | |
| α-helix | 126-135 | 10 | |
| α-helix | 136-140 | 5 | |
| α-helix | 141-156 | 16 | |
| α-helix | 158-160 | 3 | |
| α-helix | 165-167 | 3 | |
| α-helix | 168-187 | 20 | |
| α-helix | 190-220 | 31 | |
| α-helix | 240-254 | 15 | |
| α-helix | 257-266 | 10 | |
| β-strand | 267 | 1 | 1 |
| α-helix | 270-299 | 30 | |
| α-helix | 302-307 | 6 | |
| α-helix | 311-319 | 9 | |
| α-helix | 326-355 | 30 | |
| α-helix | 361-364 | 4 | |
| β-strand | 366 | 1 | 2 |
| α-helix | 374-386 | 13 | |
| α-helix | 387-389 | 3 | |
| α-helix | 394-421 | 28 | |
| α-helix | 434-453 | 20 | |
| α-helix | 458-466 | 9 | |
| α-helix | 468-475 | 8 | |
| α-helix | 483-500 | 18 | |
| β-strand | 503 | 1 | 2 |
| Molecule | Chains | Type | Length | Organism | UniProt |
|---|---|---|---|---|---|
| 4F2 cell-surface antigen heavy chain | A | protein | 631 | Homo sapiens | P08195 (AlphaFold model) |
| Large neutral amino acids transporter small subunit 1 | B | protein | 515 | Homo sapiens | Q01650 (AlphaFold model) |
>8KDN_1 4F2 cell-surface antigen heavy chain (chains A) GSELQPPEASIAVVSIPRQLPGSHSEAGVQGLSAGDDSELGSHCVAQTGLELLASGDPLP SASQNAEMIETGSDCVTQAGLQLLASSDPPALASKNAEVTGTMSQDTEVDMKEVELNELE PEKQPMNAASGAAMSLAGAEKNGLVKIKVAEDEAEAAAAAKFTGLSKEELLKVAGSPGWV RTRWALLLLFWLGWLGMLAGAVVIIVRAPRCRELPAQKWWHTGALYRIGDLQAFQGHGAG NLAGLKGRLDYLSSLKVKGLVLGPIHKNQKDDVAQTDLLQIDPNFGSKEDFDSLLQSAKK KSIRVILDLTPNYRGENSWFSTQVDTVATKVKDALEFWLQAGVDGFQVRDIENLKDASSF LAEWQNITKGFSEDRLLIAGTNSSDLQQILSLLESNKDLLLTSSYLSDSGSTGEHTKSLV TQYLNATGNRWCSWSLSQARLLTSFLPAQLLRLYQLMLFTLPGTPVFSYGDEIGLDAAAL PGQPMEAPVMLWDESSFPDIPGAVSANMTVKGQSEDPGSLLSLFRRLSDQRSKERSLLHG DFHAFSAGPGLFSYIRHWDQNERFLVVLNFGDVGLSAGLQASDLPASASLPAKADLLLST QPGREEGSPLELERLKLEPHEGLLLRFPYAA
>8KDN_2 Large neutral amino acids transporter small subunit 1 (chains B) MAGAGPKRRALAAPAAEEKEEAREKMLAAKSADGSAPAGEGEGVTLQRNITLLNGVAIIV GTIIGSGIFVTPTGVLKEAGSPGLALVVWAACGVFSIVGALCYAELGTTISKSGGDYAYM LEVYGSLPAFLKLWIELLIIRPSSQYIVALVFATYLLKPLFPTCPVPEEAAKLVACLCVL LLTAVNCYSVKAATRVQDAFAAAKLLALALIILLGFVQIGKGDVSNLDPNFSFEGTKLDV GNIVLALYSGLFAYGGWNYLNFVTEEMINPYRNLPLAIIISLPIVTLVYVLTNLAYFTTL STEQMLSSEAVAVDFGNYHLGVMSWIIPVFVGLSCFGSVNGSLFTSSRLFFVGSREGHLP SILSMIHPQLLTPVPSLVFTCVMTLLYAFSKDIFSVINFFSFFNWLCVALAIIGMIWLRH RKPELERPIKVNLALPVFFILACLFLIAVSFWKTPVECGIGFTIILSGLPVYFFGVWWKN KPKWLLQGIFSTTVLCQKLMQVVPQETDYKDDDDK
| ID | Name | Formula | Copies |
|---|---|---|---|
| PHE | Phenylalanine | C9 H11 N O2 | 1 |
Structural basis of anticancer drug recognition and amino acid transport by LAT1. Lee, Y., Jin, C., Ohgaki, R. et al. Nat Commun (2025) 16:1635-1635. DOI 10.1038/s41467-025-56903-w · PubMed
Other PDB entries of the same protein (UniProt P08195 (AlphaFold model), which also has an AlphaFold model), best resolution first:
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