9NEM: Unc119-Farnesylated peptide complex

Structure of Unc119-Farnesylated peptide complex. Determined by X-ray diffraction at 2.49 Å resolution. Released 3 Sept 2025.

Method
X-ray diffraction
Resolution
2.49 Å
Organism
Homo sapiens
Chains
6
Atoms
8,490
Mol. weight
139.18 kDa
Ligands
FAR
Released
3 Sept 2025

Explore 9NEM in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9NEM contains 33 α-helices and 56 β-strands across 6 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.

Chain A: 5 helices, 9 β-strands

ElementResiduesLengthSheet
α-helix61-644
α-helix78-803
β-strand86-9491
β-strand100-10561
β-strand127-13152
α-helix134-1385
β-strand141-14991
β-strand158-16692
β-strand169-17792
α-helix180-1823
β-strand186-19491
α-helix200-2089
β-strand213-22192
β-strand225-234102
Chain B: 5 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix61-633
α-helix78-803
β-strand86-9493
β-strand100-10563
β-strand127-13154
α-helix134-1385
β-strand141-14993
β-strand158-16694
β-strand169-17794
β-strand186-19493
α-helix195-1995
α-helix200-2089
β-strand213-22194
β-strand224-234114
Chain C: 6 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix61-633
α-helix78-803
β-strand86-9495
β-strand100-10565
β-strand127-13156
α-helix134-1385
β-strand141-14995
β-strand159-16686
β-strand170-17786
α-helix180-1823
β-strand186-19495
α-helix195-1973
α-helix200-2089
β-strand213-22196
β-strand224-234116
Chain D: 5 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix61-655
α-helix78-803
β-strand86-9497
β-strand100-10567
β-strand127-13158
α-helix134-1385
β-strand141-14997
β-strand159-16688
β-strand169-17798
β-strand186-19497
α-helix195-1973
α-helix200-2089
β-strand213-22198
β-strand224-234118
Chain E: 5 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix61-633
α-helix78-803
β-strand86-9499
β-strand100-10459
β-strand127-132610
α-helix134-1363
β-strand141-14999
β-strand158-166910
β-strand170-177810
β-strand186-19499
α-helix195-1973
α-helix200-2089
β-strand213-221910
β-strand224-2351210
Chain F: 7 helices, 11 β-strands
ElementResiduesLengthSheet
α-helix61-633
α-helix78-803
β-strand86-94911
β-strand100-103411
β-strand127-131512
α-helix134-1363
β-strand141-149911
β-strand155113
β-strand158-166912
β-strand169-177912
α-helix1801
β-strand181113
α-helix1821
β-strand186-194911
α-helix195-1962
α-helix200-2089
β-strand213-221912
β-strand224-2341112

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Protein unc-119 homolog AA, B, C, D, E, Fprotein196Homo sapiensQ13432 (AlphaFold model)
Sequence of entity 1 (A, B, C, D, E, F), FASTA
>9NEM_1 Protein unc-119 homolog A (chains A, B, C, D, E, F)
MGSSHHHHHHSSKQPIGPEDVLGLQRITGDYLCSPEENIYKIDFVRFKIRDMDSGTVLFE
IKKPPVSERLPINRRDLDPNAGRFVRYQFTPAFLRLRQVGATVEFTVGDKPVNNFRMIER
HYFRNQLLKSFDFHFGFCIPSSKNTCEHIYDFPPLSEELISEMIRHPYETQSDSFYFVDD
RLVMHNKADYSYSGTP

Ligands and cofactors

IDNameFormulaCopies
FARFarnesylC15 H265

Primary citation

Inhibition of Unc119b improves insulin sensitivity through potentiation of Rac1 activation in skeletal muscle and brown adipose tissue. Mittal, A., Buscaglia, P., Srivastava, D. et al. Mol Metab (2025) 100:102230-102230. DOI 10.1016/j.molmet.2025.102230 · PubMed

Other PDB entries of the same protein (UniProt Q13432 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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