8FYX: PDB entry 8FYX

Buspirone-bound serotonin 1A (5-HT1A) receptor-Gi1 protein complex. Determined by electron microscopy at 2.62 Å resolution. Released 15 May 2024.

Method: Electron microscopy
Resolution: 2.62 Å
Organism: Homo sapiens
Chains: 4
Atoms: 7,325
Mol. weight: 151.93 kDa
Ligands: YLX, J40, Y01
Released: 15 May 2024

Explore 8FYX in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8FYX contains 36 α-helices and 36 β-strands across 4 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: 11 helices, 8 β-strands

Element	Residues	Length	Sheet
α-helix	7-31	25
β-strand	33-40	8	1
α-helix	46-53	8
β-strand	185-191	7	1
β-strand	194-200	7	1
α-helix	208-210	3
α-helix	212-215	4
β-strand	220-226	7	1
α-helix	227-229	3
β-strand	233	1	2
β-strand	241	1	2
α-helix	242-254	13
α-helix	257-259	3
β-strand	263-269	7	1
α-helix	271-280	10
α-helix	283-285	3
α-helix	296-308	13
β-strand	319-323	5	1
α-helix	330-351	22

Chain B: 5 helices, 28 β-strands

Element	Residues	Length	Sheet
α-helix	7-25	19
α-helix	30-33	4
α-helix	38-39	2
β-strand	49-52	4	3
β-strand	58-63	6	4
β-strand	69-74	6	4
β-strand	78-83	6	4
β-strand	88-94	7	4
α-helix	95	1
β-strand	100-105	6	5
β-strand	111-116	6	5
β-strand	120-125	6	5
β-strand	134-140	7	5
β-strand	146-151	6	6
β-strand	156-161	6	6
β-strand	165-170	6	6
β-strand	176-181	6	6
β-strand	189-192	4	7
β-strand	198-202	5	7
β-strand	208-212	5	7
β-strand	218-222	5	7
β-strand	229-234	6	8
β-strand	240-245	6	8
β-strand	250-254	5	8
β-strand	259-264	6	8
α-helix	272	1
β-strand	273-278	6	9
β-strand	284-289	6	9
β-strand	294-298	5	9
β-strand	303-307	5	9
β-strand	317-320	4	3
β-strand	327-330	4	3
β-strand	335-338	4	3

Chain G: 3 helices, 0 β-strands

Element	Residues	Length
α-helix	10-23	14
α-helix	30-43	14
α-helix	45-47	3

Chain R: 17 helices, 0 β-strands

Element	Residues	Length
α-helix	36-63	28
α-helix	70-84	15
α-helix	85-89	5
α-helix	90-99	10
α-helix	106-139	34
α-helix	141-145	5
α-helix	150-168	19
α-helix	170-173	4
α-helix	178-182	5
α-helix	188-190	3
α-helix	193-200	8
α-helix	201-205	5
α-helix	206-227	22
α-helix	325-367	43
α-helix	368-370	3
α-helix	379-400	22
α-helix	405-414	10

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Guanine nucleotide-binding protein G(i) subunit alpha-1	A	protein	354	Homo sapiens	P63096 (AlphaFold model)
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	B	protein	358	Homo sapiens	P62873 (AlphaFold model)
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	G	protein	80	Homo sapiens	P59768 (AlphaFold model)
Soluble cytochrome b562,5-hydroxytryptamine receptor 1A,5-hydroxytryptamine receptor 1A	R	protein	552	Homo sapiens	P08908 (AlphaFold model), P0ABE7

Sequence of entity 1 (A), FASTA

>8FYX_1 Guanine nucleotide-binding protein G(i) subunit alpha-1 (chains A)
MGCTLSAEDKAAVERSKMIDRNLREDGEKAAREVKLLLLGAGESGKNTIVKQMKIIHEAG
YSEEECKQYKAVVYSNTIQSIIAIIRAMGRLKIDFGDSARADDARQLFVLAGAAEEGFMT
AELAGVIKRLWKDSGVQACFNRSREYQLNDSAAYYLNDLDRIAQPNYIPTQQDVLRTRVK
TTGIVETHFTFKDLHFKMFDVGAQRSERKKWIHCFEGVTAIIFCVALSDYDLVLAEDEEM
NRMHASMKLFDSICNNKWFTDTSIILFLNKKDLFEEKIKKSPLTICYPEYAGSNTYEEAA
AYIQCQFEDLNKRKDTKEIYTHFTCSTDTKNVQFVFDAVTDVIIKNNLKDCGLF

Sequence of entity 2 (B), FASTA

>8FYX_2 Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 (chains B)
MHHHHHHLEVLFQGPGSSGSELDQLRQEAEQLKNQIRDARKACADATLSQITNNIDPVGR
IQMRTRRTLRGHLAKIYAMHWGTDSRLLVSASQDGKLIIWDSYTTNKVHAIPLRSSWVMT
CAYAPSGNYVACGGLDNICSIYNLKTREGNVRVSRELAGHTGYLSCCRFLDDNQIVTSSG
DTTCALWDIETGQQTTTFTGHTGDVMSLSLAPDTRLFVSGACDASAKLWDVREGMCRQTF
TGHESDINAICFFPNGNAFATGSDDATCRLFDLRADQELMTYSHDNIICGITSVSFSKSG
RLLLAGYDDFNCNVWDALKADRAGVLAGHDNRVSCLGVTDDGMAVATGSWDSFLKIWN

Sequence of entity 3 (G), FASTA

>8FYX_3 Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 (chains G)
MASNNTASIAQARKLVEQLKMEANIDRIKVSKAAADLMAYCEAHAKEDPLLTPVPASENP
FREKKFFCAILGSAGSAGSA

Sequence of entity 4 (R), FASTA

>8FYX_4 Soluble cytochrome b562,5-hydroxytryptamine receptor 1A,5-hydroxytryptamine receptor 1A (chains R)
MKTIIALSYIFCLVFADYKDDDDAKLQTMHHHHHHHHHHENLYFQGGTTADLEDNWETLN
DNLKVIEKADNAAQVKDALTKMRAAALDAQKATPPKLEDKSPDSPEMKDFRHGFDILVGQ
IDDALKLANEGKVKEAQAAAEQLKTTRNAYIQKYLTGISDVTVSYQVITSLLLGTLIFCA
VLGNACVVAAIALERSLQNVANYLIGSLAVTDLMVSVLVLPMAALYQVLNKWTLGQVTCD
LFIALDVLCCTSSIWHLCAIALDRYWAITDPIDYVNKRTPRRAAALISLTWLIGFLISIP
PMLGWRTPEDRSDPDACTISKDHGYTIYSTFGAFYIPLLLMLVLYGRIFRAARFRIRKTV
KKVEKTGADTRHGASPAPQPKKSVNGESGSRNWRLGVESKAGGALCANGAVRQGDDGAAL
EVIEVHRVGNSKEHLPLPSEAGPTPCAPASFERKNERNAEAKRKMALARERKTVKTLGII
MGTFILCWLPFFIVALVLPFCESSCHMPTLLGAIINWLGYSNSLLNPVIYAYFNKDFQNA
FKKIIKCKFCRQ

Ligands and cofactors

ID	Name	Formula	Copies
YLX	Buspirone	C21 H31 N5 O2	1
J40	[(2R)-1-[oxidanyl-[(2R,3R,5S,6R)-2,3,5,6-tetrakis(oxidanyl)-4-phosphonooxy-cycl…	C39 H68 O16 P2	1
Y01	Cholesterol hemisuccinate	C31 H50 O4	2

Primary citation

Structural pharmacology and therapeutic potential of 5-methoxytryptamines. Warren, A.L., Lankri, D., Cunningham, M.J. et al. Nature (2024) 630:237-246. DOI 10.1038/s41586-024-07403-2 · PubMed

Other PDB entries of the same protein (UniProt P63096 (AlphaFold model), which also has an AlphaFold model), best resolution first:

6CRK 2.0 Å, Heterotrimeric G-protein in complex with an antibody fragment
3UMR 2.04 Å, Crystal structure of the G202D mutant of human G-alpha-i1
9P7Z 2.1 Å, NTSR1-Gi-NTS(8-13) Complex in the Canonical, AHD Open State (C-Open-Apo)
2OM2 2.2 Å, Crystal Structure Of Human G[alpha]i1 Bound To The Goloco Motif Of Rgs14
8YN9 2.3 Å, Cryo-EM structure of histamine H4 receptor in complex with histamine and Gi
9HYI 2.3 Å, DP81-bound serotonin 5-HT1A receptor - Gi Protein Complex
9O36 2.3 Å, CryoEM structure of mu-opioid receptor - Gi protein complex bound to fluornitrazene (FNZ)
9P80 2.3 Å, NTSR1-Gi-NTS(8-13) Complex in the Non-Canonical, AHD Open State (NC-Open-Apo)
8XXV 2.33 Å, Cryo-EM Structure of the Prostaglandin D2 Receptor 2-indomethacin Coupled to G Protein
3UMS 2.34 Å, Crystal structure of the G202A mutant of human G-alpha-i1
3ONW 2.38 Å, Structure of a G-alpha-i1 mutant with enhanced affinity for the RGS14 GoLoco motif.
20ZG 2.4 Å, Cryo-EM structure of the human neurotensin receptor 1 (hNTSR1)-Gi1 complex in the…

Browse structure collections

About this viewer

MolViewer shows 8FYX directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.