2025-01-29 REL PDBj PDBj PDBj 2023-11-04 2024-11-06 2024-11-06 2025-01-29 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, Rcc conformation 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-37978 other EM volume
Receptor in active conformation from same data
 8x0h FULLOVERLAP mGlu Receptor bound to quisqualate, in Rcc conformation mGlu Receptor bound to quisqualate, in Rcc conformation 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 modeled 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 singleParticle particle 5 7.4 25.0 HEPES 150.0 Sodium Chloride 0.03 dodecyl maltoside 0.006 cholesterol hemisuccinate Quantifoil R0.6/1 GOLD 300 CARBON HOLEY GLOW DISCHARGE AIR ETHANE 95 277 LEICA EM GP FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 1.0 2.2 105000.0 59523.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN
Data was collected in EFTEM mode with Bioquantum K3
GATAN K3 BIOQUANTUM (6k x 4k) 5760 4092 1 18710 1.9 49.55
Electron flux was 18.4 e/p/s and total number of frames were 50.
 1 3416003 Ab-initio C1 BACK PROJECTION 4.1 FSC 0.143 CUT-OFF cryoSPARC 344232 MAXIMUM LIKELIHOOD MAXIMUM LIKELIHOOD emd_37979.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 416 416 416 0 0 0 416 416 416 349.44 349.44 349.44 90.0 90.0 90.0 X Y Z -0.35873348 0.6179285 0.00020573099 0.011380238 0.84000003 0.84000003 0.84000003 0.09 AUTHOR combined sharpened map, B=-70 7FD9 A 565-827 PDB experimental model D_1300042381 A 25-510 Other experimental model
Active conformation from same data
 OTHER REAL 88.299999999999997 emd_37979_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 416 416 416 0 0 0 416 416 416 349.44 349.44 349.44 90.0 90.0 90.0 X Y Z -0.2549118 0.40352845 0.00020508078 0.017985048 0.84000003 0.84000003 0.84000003 AUTHOR one of the half maps emd_37979_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 416 416 416 0 0 0 416 416 416 349.44 349.44 349.44 90.0 90.0 90.0 X Y Z -0.22870398 0.47089908 0.00020638121 0.017862834 0.84000003 0.84000003 0.84000003 AUTHOR one of the half maps