2025-03-19 REL PDBe PDBe PDBe 2023-05-09 2024-04-24 2024-04-24 2025-03-19 Novo Nordisk Foundation Denmark Focused Cryo-EM map on TE-CUB of C3* Joergensen MH Andersen GR Complement cascade, complement factor C3, thioester protein, IMMUNE SYSTEM Gadeberg TAF Jorgensen MH Olesen HG Lorentzen J Harwood SL Almeida AV Fruergaard MU Jensen RK Kanis P Pedersen H Tranchant E Petersen SV Thogersen IB Kragelund BB Lyons JA Enghild JJ Andersen GR Cryo-EM analysis of complement C3 reveals a reversible major opening of the macroglobulin ring. Nat.Struct.Mol.Biol. US 2025 39849196 doi:10.1038/s41594-024-01467-4 1545-9985 EMD-17326 other EM volume
Focused map on MG-ring of C3*
 EMD-17328 other EM volume
Homogeneously refined Cryo-EM map centred on MG7 of C3*
 EMD-17327 other EM volume
Combined map of C3* (composite structure)
 Complement factor C3* intermediate Complement factor C3* intermediate 0 1
Activated to C3* by nucleophilic reaction with methylamine
Homo sapiens Complement factor C3 Homo sapiens LEVO SPMYSIITPNILRLESEETMVLEAHDAQGDVPVTVTVH DFPGKKLVLSSEKTVLTPATNHMGNVTFTIPANREFKSEKGRNKFVTVQATFGTQVVEKV VLVSLQSGYLFIQTDKTIYTPGSTVLYRIFTVNHKLLPVGRTVMVNIENPEGIPVKQDSL SSQNQLGVLPLSWDIPELVNMGQWKIRAYYENSPQQVFSTEFEVKEYVLPSFEVIVEPTE KFYYIYNEKGLEVTITARFLYGKKVEGTAFVIFGIQDGEQRISLPESLKRIPIEDGSGEV VLSRKVLLDGVQNPRAEDLVGKSLYVSATVILHSGSDMVQAERSGIPIVTSPYQIHFTKT PKYFKPGMPFDLMVFVTNPDGSPAYRVPVAVQGEDTVQSLTQGDGVAKLSINTHPSQKPL SITVRTKKQELSEAEQATRTMQALPYSTVGNSNNYLHLSVLRTELRPGETLNVNFLLRMD RAHEAKIRYYTYLIMNKGRLLKAGRQVREPGQDLVVLPLSITTDFIPSFRLVAYYTLIGA SGQREVVADSVWVDVKDSCVGSLVVKSGQSEDRQPVPGQQMTLKIEGDHGARVVLVAVDK GVFVLNKKNKLTQSKIWDVVEKADIGCTPGSGKDYAGVFSDAGLTFTSSSGQQTAQRAEL QCPQPAARRRRSVQLTEKRMDKVGKYPKELRKCCEDGMRENPMRFSCQRRTRFISLGEAC KKVFLDCCNYITELRRQHARASHLGLARSNLDEDIIAEENIVSRSEFPESWLWNVEDLKE PPKNGISTKLMNIFLKDSITTWEILAVSMSDKKGICVADPFEVTVMQDFFIDLRLPYSVV RNEQVEIRAVLYNYRQNQELKVRVELLHNPAFCSLATTKRRHQQTVTIPPKSSLSVPYVI VPLKTGLQEVEVKAAVYHHFISDGVRKSLKVVPEGIRMNKTVAVRTLDPERLGREGVQKE DIPPADLSDQVPDTESETRILLQGTPVAQMTEDAVDAERLKHLIVTPSGCGEQNMIGMTP TVIAVHYLDETEQWEKFGLEKRQGALELIKKGYTQQLAFRQPSSAFAAFVKRAPSTWLTA YVVKVFSLAVNLIAIDSQVLCGAVKWLILEKQKPDGVFQEDAPVIHQEMIGGLRNNNEKD MALTAFVLISLQEAKDICEEQVNSLPGSITKAGDFLEANYMNLQRSYTVAIAGYALAQMG RLKGPLLNKFLTTAKDKNRWEDPGKQLYNVEATSYALLALLQLKDFDFVPPVVRWLNEQR YYGGGYGSTQATFMVFQALAQYQKDAPDHQELNLDVSLQLPSRSSKITHRIHWESASLLR SEETKENEGFTVTAEGKGQGTLSVVTMYHAKAKDQLTCNKFDLKVTIKPAPETEKRPQDA KNTMILEICTRYRGDQDATMSILDISMMTGFAPDTDDLKQLANGVDRYISKYELDKAFSD RNTLIIYLDKVSHSEDDCLAFKVHQYFNVELIQPGAVKVYAYYNLEESCTRFYHPEKEDG KLNKLCRDELCRCAEENCFIQKSDDKVTLEERLDKACEPGVDYVYKTRLVKVQLSNDFDE YIMAIEQTIKSGSDEVQVGQQRTFISPIKCREALKLEEKKHYLMWGLSSDFWGEKPNLSY IIGKDTWVEHWPEEDECQDEENQKQCQDLGAFTESMVVFGCPN P01024 singleParticle particle 0.2 6.0 20.0 C6H13NO4S MES 150.0 NaCl sodium chloride ETHANE 100 277 FEI VITROBOT MARK IV
Vast majority of C3* with negligible amounts of native C3 and C3MA
 FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 0.8 0.7000000000000001 2.2 2.4 130000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN GIF Bioquantum 20 GATAN K3 (6k x 4k) 1 8263 1.4 59.5 1 2156605 BACK PROJECTION 7.8 FSC 0.143 CUT-OFF 56532 MAXIMUM LIKELIHOOD MAXIMUM LIKELIHOOD emd_17325.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 156 156 156 0 0 0 156 156 156 300.208 300.208 300.208 90.0 90.0 90.0 X Y Z -0.2460183 0.74529266 -0.0038313782 0.023471704 1.9244103 1.9244103 1.9244103 0.233 AUTHOR Full map focused on TE-CUB emd_17325_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 156 156 156 0 0 0 156 156 156 300.208 300.208 300.208 90.0 90.0 90.0 X Y Z -0.3059385 0.8165337 -0.00089443714 0.032633517 1.9244103 1.9244103 1.9244103 AUTHOR Half-map (A) focused on TE-CUB emd_17325_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 156 156 156 0 0 0 156 156 156 300.208 300.208 300.208 90.0 90.0 90.0 X Y Z -0.3033447 0.84661317 -0.0009873981 0.032316968 1.9244103 1.9244103 1.9244103 AUTHOR Half-map (B) focused on TE-CUB