8H0Q: GRP14-27-GRPR-Gq complex

Structure of the GRP14-27-GRPR-Gq complex. Determined by electron microscopy at 3.3 Å resolution. Released 9 Aug 2023.

Method
Electron microscopy
Resolution
3.3 Å
Organisms
Homo sapiens, Mus musculus
Chains
6
Atoms
8,949
Mol. weight
159.12 kDa
Ligands
CLR
Released
9 Aug 2023

Explore 8H0Q in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8H0Q contains 29 α-helices and 67 β-strands across 5 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: 9 helices, 6 β-strands

ElementResiduesLengthSheet
α-helix13-3826
β-strand39-4683
α-helix52-587
β-strand189-19683
β-strand199-20683
α-helix216-2205
β-strand225-23173
α-helix248-25912
α-helix262-2643
β-strand268-27473
α-helix276-2838
α-helix293-2964
α-helix308-31710
β-strand325-32843
α-helix336-35520
Chain B: 3 helices, 28 β-strands
ElementResiduesLengthSheet
α-helix9-2921
α-helix35-384
β-strand52-5654
β-strand63-6755
β-strand74-7965
β-strand83-8865
β-strand94-9965
β-strand105-11066
β-strand116-12166
β-strand125-13066
β-strand140-14566
β-strand15417
β-strand161-16557
β-strand171-17557
β-strand181-18447
α-helix185-1873
β-strand194-19748
β-strand203-20758
β-strand213-21758
β-strand225-22738
β-strand234-23969
β-strand245-25069
β-strand255-25959
β-strand265-26959
β-strand278-283610
β-strand289-294610
β-strand299-303510
β-strand309-313510
β-strand320-32564
β-strand332-33654
β-strand341-34444
Chain E: 1 helix, 29 β-strands
ElementResiduesLengthSheet
β-strand2-6511
β-strand9-11312
β-strand16-24911
α-helix32-332
β-strand34-38513
β-strand44-50713
β-strand57-59313
β-strand67-72611
β-strand77-83711
β-strand92-96513
β-strand110113
β-strand114113
β-strand116-118312
β-strand142114
β-strand155-160614
β-strand166115
β-strand172115
β-strand174116
β-strand176-178317
β-strand179118
β-strand186-189417
β-strand195117
β-strand203-207514
β-strand211-216614
β-strand226118
β-strand227119
β-strand230120
β-strand231116
β-strand239120
β-strand243119
Chain G: 4 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix6-2217
α-helix29-4214
α-helix52-543
α-helix55-573
Chain R: 12 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix43-6725
α-helix74-10128
α-helix112-13827
α-helix139-1435
α-helix154-17724
β-strand180-18121
β-strand184-18522
β-strand192-19322
β-strand196-19721
α-helix205-21511
α-helix216-2205
α-helix221-24020
α-helix250-28940
α-helix298-31720
α-helix321-3255
α-helix330-3389

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Gastrin-releasing peptide receptorRprotein384Homo sapiensP30550 (AlphaFold model)
GRPLprotein9Homo sapiensP07492 (AlphaFold model)
G-alpha qAprotein361Homo sapiensP63092 (AlphaFold model), P63096 (AlphaFold model)
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1Bprotein343Homo sapiensP62873
scFv16Eprotein247Mus musculus
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2Gprotein71Homo sapiensP59768
Sequence of entity 1 (R), FASTA
>8H0Q_1 Gastrin-releasing peptide receptor (chains R)
MALNDCFLLNLEVDHFMHCNISSHSADLPVNDDWSHPGILYVIPAVYGVIILIGLIGNIT
LIKIFCTVKSMRNVPNLFISSLALGDLLLLITCAPVDASRYLADRWLFGRIGCKLIPFIQ
LTSVGVSVFTQTALSADRYKAIVRPMDIQASHALMKICLKAAFIWIISMLLAIPEAVFSD
LHPFHEESTNQTFISCAPYPHSNELHPKIHSMASFLVFYVIPLSIISVYYYFIAKNLIQS
AYNLPVEGNIHVKKQIESRKRLAKTVLVFVGLFAFCWLPNHVIYLYRSYHYSEVDTSMLH
FVTSICARLLAFTNSCVNPFALYLLSKSFRKQFNTQLLCCQPGLIIRSHSTGRSTTCMTS
LKSTNPSVATFSLINGNICHERYV
Sequence of entity 2 (L), FASTA
>8H0Q_2 GRP (chains L)
NHWAVGHLM
Sequence of entity 3 (A), FASTA
>8H0Q_3 G-alpha q (chains A)
MGCTLSAEDKAAVERSKMIEKQLQKDKQVYRRTLRLLLLGADNSGKSTIVKQMRIYHVNG
YSEEECKQYKAVVYSNTIQSIIAIIRAMGRLKIDFGDSARADDARQLFVLAGAAEEGFMT
AELAGVIKRLWKDSGVQACFNRSREYQLNDSAAYYLNDLDRIAQPNYIPTQQDVLRTRVK
TSGIFETKFQVDKVNFHMFDVGAQRDERRKWIQCFNDVTAIIFVVDSSDYNRLQEALNDF
KSIWNNRWLRTISVILFLNKQDLLAEKVLAGKSKIEDYFPEFARYTTPEDATPEPGEDPR
VTRAKYFIRKEFVDISTASGDGRHICYPHFTCSVDTENARRIFNDCKDIILQMNLREYNL
V
Sequence of entity 4 (B), FASTA
>8H0Q_4 Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 (chains B)
MLLQSELDQLRQEAEQLKNQIRDARKACADATLSQITNNIDPVGRIQMRTRRTLRGHLAK
IYAMHWGTDSRLLVSASQDGKLIIWDSYTTNKVHAIPLRSSWVMTCAYAPSGNYVACGGL
DNICSIYNLKTREGNVRVSRELAGHTGYLSCCRFLDDNQIVTSSGDTTCALWDIETGQQT
TTFTGHTGDVMSLSLAPDTRLFVSGACDASAKLWDVREGMCRQTFTGHESDINAICFFPN
GNAFATGSDDATCRLFDLRADQELMTYSHDNIICGITSVSFSKSGRLLLAGYDDFNCNVW
DALKADRAGVLAGHDNRVSCLGVTDDGMAVATGSWDSFLKIWN
Sequence of entity 5 (E), FASTA
>8H0Q_5 scFv16 (chains E)
VQLVESGGGLVQPGGSRKLSCSASGFAFSSFGMHWVRQAPEKGLEWVAYISSGSGTIYYA
DTVKGRFTISRDDPKNTLFLQMTSLRSEDTAMYYCVRSIYYYGSSPFDFWGQGTTLTVSA
GGGGSGGGGSGGGGSADIVMTQATSSVPVTPGESVSISCRSSKSLLHSNGNTYLYWFLQR
PGQSPQLLIYRMSNLASGVPDRFSGSGSGTAFTLTISRLEAEDVGVYYCMQHLEYPLTFG
AGTKLEL
Sequence of entity 6 (G), FASTA
>8H0Q_6 Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 (chains G)
MASNNTASIAQARKLVEQLKMEANIDRIKVSKAAADLMAYCEAHAKEDPLLTPVPASENP
FREKKFFCAIL

Ligands and cofactors

IDNameFormulaCopies
CLRCholesterolC27 H46 O3

Primary citation

Molecular recognition of itch-associated neuropeptides by bombesin receptors. Li, C., Xu, Y., Liu, H. et al. Cell Res (2023) 33:184-187. DOI 10.1038/s41422-022-00743-6

Other PDB entries of the same protein (UniProt P30550 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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