2024-02-28 REL RCSB RCSB RCSB 2021-12-15 2022-02-09 2022-02-09 2024-02-28 National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK) NIH DK 027044 United States National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) NIH GM 110530 United States Subtomogram average of the hexagonal assembly in Munc13-1 C1-C2B-MUN-C2C 2D crystal between lipid bilayers Grushin K Sindelar CV Synaptic Transmission, Munc13, Membrane Fusion, EXOCYTOSIS Grushin K Kalyana Sundaram RV Sindelar CV Rothman JE Munc13 structural transitions and oligomers that may choreograph successive stages in vesicle priming for neurotransmitter release. Proc.Natl.Acad.Sci.USA US 119 2022 35135883 doi:10.1073/pnas.2121259119 1091-6490 0040 PNASA6 7t7c FULLOVERLAP 2D crystal of Munc13-1 C1-C2B-MUN-C2C domains between two lipid bilayers. 2D crystal of Munc13-1 C1-C2B-MUN-C2C domains between two lipid bilayers. 0 1 Rattus norvegicus 0.13 Protein unc-13 homolog A Chimera Rattus norvegicus 0.130895867 12 Homo sapiens LEVO GPLGSEFMAGITSALASSTLNNEELKNHVYKKTLQALIYPISCTTPHNFEVWTATTPTYCYECEGLLWGIARQGMRCTEC GVKCHEKCQDLLNADCLQRAAEKSSKHGAEDRTQNIIMVLKDRMKIRERNKPEIFELIQEVFAVTKSAHTQQMKAVKQSV LDGTSKWSAKISITVVCAQGLQAKDKTGSSDPYVTVQVGKTKKRTKTIYGNLNPVWEENFHFECHNSSDRIKVRVWDEDD DIKSRVKQRFKRESDDFLGQTIIEVRTLSGEMDVWYNLDKRTDKSAVSGAIRLHISVEIKGEEKVAPYHVQYTCLHENLF HFVTDVQNNGVVKIPDAKGDDAWKVYYDETAQEIVDEFAMRYGVESIYQAMTHFACLSSKYMCPGVPAVMSTLLANINAY YAHTTASTNVSASDRFAASNFGKERFVKLLDQLHNSLRIDLSMYRNNFPASSPERLQDLKSTVDLLTSITFFRMKVQELQ SPPRASQVVKDCVKACLNSTYEYIFNNCHELYGREYQTDPAKKGEVPPEEQGPSIKNLDFWSKLITLIVSIIEEDKNSYT PCLNQFPQELNVGKISAEVMWSLFAQDMKYAMEEHDKHRLCKSADYMNLHFKVKWLYNEYVAELPTFKDRVPEYPAWFEP FVIQWLDENEEVSRDFLHGALERDKKDGFQQTSEHALFSCSVVDVFSQLNQSFEIIKKLECPDPQIVGHYMRRFAKTISN VLLQYADIVSKDFASYCSKEKEKVPCILMNNTQQLRVQLEKMFEAMGGKELDAEASGTLKELQVKLNNVLDELSHVFATS FQPHIEECVRQMGDILSQVKGTGNVPASACSSVAQDADNVLQPIMDLLDSNLTLFAKICEKTVLKRVLKELWKLVMNTME RTIVLPPEFLSKLKDHMVREEAKSLTPKQCAVVELALDTIKQYFHAGGVGLKKTFLEKSPDLQSLRYALSLYTQATDLLI KTFVQTQSAQGSGVEDPVGEVSVHVELFTHPGTGEQKVTVKVVAANDLKWQTSGIFRPFIEVNIVGPQLSDKKRKFATKS KNNSWAPKYNESFQFSLSADAGPECYELQVCVKDYCFAREDRTVGLAVLQLRELAQRGSAACWLPLGRRIHMDDTGLTVL RILSQRSNDEVAKEFVKLKSDTRSAEEGGAAPAP A0A822AJ50 Q4KUS2 subtomogramAveraging twoDArray 7.4 20.0 MOPS 150.0 potassium chloride 1.0 EDTA 0.5 TCEP ETHANE 100 281 FEI VITROBOT MARK IV
blot for 5 sec before plunging, blot force -1.
FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 3.5 5.0 GIF Quantum LS 20 GATAN K3 (6k x 4k) 3.1 1 C6 10.0 FSC 0.143 CUT-OFF RELION 3.1 12149 62 36837
Particles were extracted and refined using Warp/M software
 MAXIMUM LIKELIHOOD RELION 3.1 emd_25737.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 196 196 196 0 0 0 196 196 196 411.59998 411.59998 411.59998 90.0 90.0 90.0 X Y Z -0.5282697 0.8528131 0.010306788 0.11762007 2.1 2.1 2.1 0.25 AUTHOR Subtomogram average of Munc13C crystal with focus on hexagon FLEXIBLE FIT
Model for fitting was generated by AlphaFold using the construct's amino acid sequence. Flexible fitting into corresponding densities was performed using ISOLDE tool in ChimeraX. The resulting structures were copied and fitted as rigid bodies into the 3D map by the "fit in map" function in Chimera.
 emd_25737_msk_1.map emd_25737_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 196 196 196 0 0 0 196 196 196 411.59998 411.59998 411.59998 90.0 90.0 90.0 X Y Z -0.9109727 0.7416771 0.010693275 0.12078282 2.1 2.1 2.1 AUTHOR Half Map 1 emd_25737_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 196 196 196 0 0 0 196 196 196 411.59998 411.59998 411.59998 90.0 90.0 90.0 X Y Z -0.6493832 0.7104767 0.0099202925 0.11552663 2.1 2.1 2.1 AUTHOR Half Map 2