2023-12-13 REL PDBe PDBe PDBe 2021-10-30 2022-07-20 2022-07-20 2023-12-13 UK Research and Innovation (UKRI) ST/R002754/1 United Kingdom Structure of full-length, dimeric, soluble somatic angiotensin I-converting enzyme Lubbe L Sewell BT Sturrock ED Zinc metalloprotease Dicarboxypeptidase Glycoprotein, HYDROLASE Lubbe L Sewell BT Woodward JD Sturrock ED Cryo-EM reveals mechanisms of angiotensin I-converting enzyme allostery and dimerization. Embo J. UK 41 e110550 e110550 2022 35818993 doi:10.15252/embj.2021110550 1460-2075 0897 EMJODG EMD-13797 other EM volume
EMD-13797 contains the full-length, soluble, monomeric somatic angiotensin I-converting enzyme map from non-uniform refinement
 EMD-13799 other EM volume
EMD-13799 contains the N-domain map from local refinement of the consensus soluble, monomeric somatic angiotensin I-converting enzyme map
 EMD-13801 other EM volume
EMD-13801 contains the C-domain map from local refinement of the consensus soluble, monomeric somatic angiotensin I-converting enzyme map
 EMD-13803 other EM volume EMD-13804 other EM volume Full-length, soluble, dimeric somatic angiotensin I-converting enzyme Full-length, soluble, dimeric somatic angiotensin I-converting enzyme 0 1 Homo sapiens 0.279 Angiotensin I-converting enzyme Homo sapiens
Soluble secreted form of human somatic angiotensin I-converting enzyme terminating at Ser1211
Cricetulus griseus LEVO LDPGLQPGNFSADEAGAQLFAQSYNSSAEQV LFQSVAASWAHDTNITAENARRQEEAALLSQEFAEAWGQKAKELYEPIWQNFTDPQLRRI IGAVRTLGSANLPLAKRQQYNALLSNMSRIYSTAKVCLPNKTATCWSLDPDLTNILASSR SYAMLLFAWEGWHNAAGIPLKPLYEDFTALSNEAYKQDGFTDTGAYWRSWYNSPTFEDDL EHLYQQLEPLYLNLHAFVRRALHRRYGDRYINLRGPIPAHLLGDMWAQSWENIYDMVVPF PDKPNLDVTSTMLQQGWNATHMFRVAEEFFTSLELSPMPPEFWEGSMLEKPADGREVVCH ASAWDFYNRKDFRIKQCTRVTMDQLSTVHHEMGHIQYYLQYKDLPVSLRRGANPGFHEAI GDVLALSVSTPEHLHKIGLLDRVTNDTESDINYLLKMALEKIAFLPFGYLVDQWRWGVFS GRTPPSRYNFDWWYLRTKYQGICPPVTRNETHFDAGAKFHVPNVTPYIRYFVSFVLQFQF HEALCKEAGYEGPLHQCDIYRSTKAGAKLRKVLQAGSSRPWQEVLKDMVGLDALDAQPLL KYFQLVTQWLQEQNQQNGEVLGWPEYQWHPPLPDNYPEGIDLVTDEAEASKFVEEYDRTS QVVWNEYAEANWNYNTNITTETSKILLQKNMQIANHTLKYGTQARKFDVNQLQNTTIKRI IKKVQDLERAALPAQELEEYNKILLDMETTYSVATVCHPNGSCLQLEPDLTNVMATSRKY EDLLWAWEGWRDKAGRAILQFYPKYVELINQAARLNGYVDAGDSWRSMYETPSLEQDLER LFQELQPLYLNLHAYVRRALHRHYGAQHINLEGPIPAHLLGNMWAQTWSNIYDLVVPFPS APSMDTTEAMLKQGWTPRRMFKEADDFFTSLGLLPVPPEFWNKSMLEKPTDGREVVCHAS AWDFYNGKDFRIKQCTTVNLEDLVVAHHEMGHIQYFMQYKDLPVALREGANPGFHEAIGD VLALSVSTPKHLHSLNLLSSEGGSDEHDINFLMKMALDKIAFIPFSYLVDQWRWRVFDGS ITKENYNQEWWSLRLKYQGLCPPVPRTQGDFDPGAKFHIPSSVPYIRYFVSFIIQFQFHE ALCQAAGHTGPLHKCDIYQSKEAGQRLATAMKLGFSRPWPEAMQLITGQPNMSASAMLSY FKPLLDWLRTENELHGEKLGWPQYNWTPNSARSEGPLPDS 3.4.15.1 singleParticle particle 1.5 7.5 125.0 NaCl sodium chloride 0.01 ZnCl2 zinc chloride 50.0 C8H18N2O4S HEPES
Solutions were prepared with deionized water
 Quantifoil R2/2 COPPER 200 GLOW DISCHARGE ETHANE 100 277 FEI VITROBOT MARK IV
Diluted protein (in buffer containing zinc chloride and sodium chloride) was incubated on ice for 30 minutes after which it was applied to the grid, incubated for 30 seconds, and blotted for 3 seconds before plunging.
The protein was stored at 3.0mg/ml in 50mM HEPES (pH 7.5) and diluted immediately prior to grid preparation
 FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 1.8 3.0 81000.0 FEI TITAN KRIOS AUTOGRID HOLDER GATAN K3 (6k x 4k) 5760 4092 1 11628 3.0 43.0
Images were recorded in super-resolution mode with 40 frames per image
 1 1727045
Topaz-denoising was performed on all curated micrographs, a Topaz model trained on this dataset, and used for picking
Ab initio 3D model
 70 C1 3.79 FSC 0.143 CUT-OFF cryoSPARC 3.2
Non-uniform refinement of the full dimer
123059 MAXIMUM LIKELIHOOD cryoSPARC 3.2 MAXIMUM LIKELIHOOD cryoSPARC 3.2 100 cryoSPARC 3.2
70 dimeric classes were selected from 2D classification for non-uniform refinement in cryoSPARC
 emd_13802.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 360 360 360 0 0 0 360 360 360 381.59998 381.59998 381.59998 90.0 90.0 90.0 X Y Z -1.6559213 3.2416894 0.0015133391 0.054605976 1.06 1.06 1.06 0.65 AUTHOR Globally-sharpened map of full-length dimeric somatic angiotensin I-converting enzyme showing interacting N-domains and disordered C-domains FLEXIBLE FIT Correlation coefficient REAL emd_13802_msk_1.map emd_13802_msk_2.map emd_13802_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 360 360 360 0 0 0 360 360 360 381.59998 381.59998 381.59998 90.0 90.0 90.0 X Y Z -0.798883 3.194244 0.004292343 0.09443813 1.06 1.06 1.06 AUTHOR Raw, unfiltered full map from non-uniform refinement of full-length dimeric somatic angiotensin I-converting enzyme emd_13802_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 360 360 360 0 0 0 360 360 360 381.59998 381.59998 381.59998 90.0 90.0 90.0 X Y Z -0.48477322 1.6720034 0.0021475768 0.054780465 1.06 1.06 1.06 AUTHOR Raw, unfiltered half-map A of full-length dimeric somatic angiotensin I-converting enzyme emd_13802_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 360 360 360 0 0 0 360 360 360 381.59998 381.59998 381.59998 90.0 90.0 90.0 X Y Z -0.50602144 1.8493491 0.0021447663 0.055035543 1.06 1.06 1.06 AUTHOR Raw, unfiltered half-map B of full-length dimeric somatic angiotensin I-converting enzyme