2026-04-15 REL PDBj INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY STRUCTURE_SUMMARY em_admin entity _chem_comp.name _chem_comp.pdbx_synonyms _em_admin.last_update _entity.pdbx_description DATABASE_REFERENCES citation citation_author em_admin _citation.country _citation.journal_abbrev _citation.journal_id_CSD _citation.journal_id_ISSN _citation.journal_volume _citation.page_first _citation.page_last _citation.pdbx_database_id_DOI _citation.pdbx_database_id_PubMed _citation.title _citation.year _em_admin.last_update STRUCTURE_SUMMARY chem_comp chem_comp_bond em_admin entity pdbx_entity_nonpoly _chem_comp.name _chem_comp.pdbx_synonyms _chem_comp_bond.value_order _em_admin.last_update _entity.pdbx_description _pdbx_entity_nonpoly.name PDBj PDBj 2023-11-04 2024-11-06 2024-11-06 2026-04-15 Department of Biotechnology (DBT, India) DBT/PR12422/MED/31/287/204 India Other government RTI4006 India Agence Nationale de la Recherche (ANR) ANR-20-CE11-0019 France Human FL Metabotropic glutamate receptor 5, mGlu5-5M with quisqualate and PAM VU29 Vinothkumar KR Lebon G Cannone G G-PROTEIN COUPLED RECEPTORS, SIGNAL TRANSDUCTION, METABOTROPIC GLUTAMATE RECEPTOR, Agonist, active state, MEMBRANE PROTEIN Cannone G Berto L Malhaire F Ferguson G Fouillen A Balor S Font-Ingles J Llebaria A Goudet C Kotecha A K R V Lebon G Conformational diversity in class C GPCR positive allosteric modulation. Nat Commun UK 16 619 619 2025 39805839 doi:10.1038/s41467-024-55439-9 2041-1723 EMD-37973 other EM volume
Receptor with different PAM, VU0424465
 EMD-37974 other EM volume
Receptor with different PAM, VU0424465, conformer 1
 EMD-37975 other EM volume
Receptor with different PAM, VU0424465, conformer 2
 EMD-37976 other EM volume
Receptor with different PAM, VU0424465 and mutant W785A
 8x0f FULLOVERLAP EMDB EMD-37973 other EM volume
Receptor with different PAM, VU0424465
 EMDB EMD-37974 other EM volume
Receptor with different PAM, VU0424465, conformer 1
 EMDB EMD-37975 other EM volume
Receptor with different PAM, VU0424465, conformer 2
 EMDB EMD-37977 other EM volume
Receptor with different PAM, VU0409551
 EMDB EMD-37976 other EM volume
Receptor with different PAM, VU0424465 and mutant W785A
 EMDB EMD-37977 associated EM volume
Human FL Metabotropic glutamate receptor 5, mGlu5-5M with quisqualate and PAM VU29
 Human FL Metabotropic glutamate receptor 5, mGlu5-5M with quisqualate and VU029 Human FL Metabotropic glutamate receptor 5, mGlu5-5M with quisqualate and VU029 0 1 Homo sapiens 0.2 Metabotropic glutamate receptor 5 Homo sapiens 0.09369149199999999
The construct has tags and protease cleavage site at its N-term (DYKDDDDKHHHHHHHHHHLEVLFQGP) and when compared to uniprot it starts at 21 and ends at 856. For CryoEM, the tag is cleaved and the protein used for experiment starts at QSSE but residues starting RR have been modeled. There are 5 thermostabilising mutations (T742A, S753A, T777A, I799A, A813L). Residue N445 is mutated to remove glycosylation. An additional mutation H350L is engineered for a nanobody to bind. Each monomer has one sugar modelled and 10 disulfide bonds.
2 Homo sapiens LEVO QSSERRVVAHMPGDIIIGALFSVHHQPTVDKVHERKCGAVREQYGIQRVEAMLHTLERINSDPTLLPNITLGCEIRDSCW HSAVALEQSIEFIRDSLISSEEEEGLVRCVDGSSSSFRSKKPIVGVIGPGSSSVAIQVQNLLQLFNIPQIAYSATSMDLS DKTLFKYFMRVVPSDAQQARAMVDIVKRYNWTYVSAVHTEGNYGESGMEAFKDMSAKEGICIAHSYKIYSNAGEQSFDKL LKKLTSHLPKARVVACFCEGMTVRGLLMAMRRLGLAGEFLLLGSDGWADRYDVTDGYQREAVGGITIKLQSPDVKWFDDY YLKLRPETNLRNPWFQEFWQHRFQCRLEGFPQENSKYNKTCNSSLTLKTHHVQDSKMGFVINAIYSMAYGLHNMQMSLCP GYAGLCDAMKPIDGRKLLESLMKTAFTGVSGDTILFDENGDSPGRYEIMNFKEMGKDYFDYINVGSWDNGELKMDDDEVW SKKSNIIRSVCSEPCEKGQIKVIRKGEVSCCWTCTPCKENEYVFDEYTCKACQLGSWPTDDLTGCDLIPVQYLRWGDPEP IAAVVFACLGLLATLFVTVVFIIYRDTPVVKSSSRELCYIILAGICLGYLCTFCLIAKPKQIYCYLQRIGIGLSPAMSYS ALVTKTNRIARILAGSKKKICTKKPRFMSACAQLVIAFILICIQLGIIVALFIMEPPDIMHDYPSIREVYLICNTTNLGV VAPLGYNGLLILACTFYAFKTRNVPANFNEAKYIAFAMYTTCIIWLAFVPIYFGSNYKAITMCFSVSLSATVLLGCMFVP KVYIILAKPERNVRSAFTTSTVVRMHVGDGKSSSAA P41594 2-acetamido-2-deoxy-beta-D-glucopyranose 0.000221208 2 NAG (S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID 0.000189126 2 QUS N-(1,3-diphenyl-1H-pyrazol-5-yl)-4-nitrobenzamide 0.000384387 1 XRQ singleParticle particle 5 7.4 25.0 HEPES 150.0 sodium chloride 0.03 doedecyl maltoside 0.006 cholesterol hemisuccinate Quantifoil R0.6/1 GOLD 300 CARBON HOLEY GLOW DISCHARGE AIR ETHANE 95 277 LEICA EM GP
Receptor is purified in detergent micelles and monodisperse. The receptor is purified with 10 uM Quisqualate and 10 uM PAM VU29
 FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 0.5 1.2 165000.0 192572.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN
Data was collected in EFTEM model with selectris and Falcon 4i
FEI FALCON IV (4k x 4k) 4096 4096 1 9469 4.3 49.62
Electron flux was 6.1. e/p/s. total number of frames per movie were 1395
 1 1418090 cryoSPARC PHASE FLIPPING AND AMPLITUDE CORRECTION Abinitio model C1 BACK PROJECTION 3.3 FSC 0.143 CUT-OFF cryoSPARC 113563 MAXIMUM LIKELIHOOD MAXIMUM LIKELIHOOD emd_37977.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 476 476 476 0 0 0 476 476 476 346.052 346.052 346.052 90.0 90.0 90.0 X Y Z -0.4337936 1.0999415 0.0010784325 0.0248438 0.727 0.727 0.727 0.16 AUTHOR Combined map sharpened with B=-20 D_1300042377 A Other experimental model
Model from this deposition was used as template
 OTHER REAL 121.700000000000003 emd_37977_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 476 476 476 0 0 0 476 476 476 346.052 346.052 346.052 90.0 90.0 90.0 X Y Z -0.49558115 1.0045012 0.0010734848 0.043603882 0.727 0.727 0.727 AUTHOR One of the half maps emd_37977_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 476 476 476 0 0 0 476 476 476 346.052 346.052 346.052 90.0 90.0 90.0 X Y Z -0.4496698 1.0199604 0.0010833803 0.043605026 0.727 0.727 0.727 AUTHOR One of the half maps