2025-10-22 REL PDBe INITIAL_RELEASE REPOSITORY PDBe PDBe 2024-10-28 2025-10-22 2025-10-22 2025-10-22 Wellcome Trust 222373/Z/21/Z United Kingdom Medical Research Council (MRC, United Kingdom) MR/Y012453/1 United Kingdom BAM-hinge (LVPR) suppressor (T434A) Machin JM Ranson NA Outer membrane, folding, OMP, MEMBRANE PROTEIN Csoma N Machin JM Whitehouse JM Rodriguez-Alonso R Olejnik M Cahill AK Cho SH Schaberle TF Iorga BI Ranson NA Radford SE Calabrese AN Collet JF Molecular insights into how the motions of the beta-barrel and POTRA domains of BamA are coupled for efficient function. Nat Commun UK 16 8832 8832 2025 41044071 doi:10.1038/s41467-025-63897-y 2041-1723 EMD-51930 consensus EM volume
BAM-hinge (LVPR)
 EMD-51931 consensus EM volume
BAM-hinge (GSGS)
 9h89 FULLOVERLAP PDB 9H84 unspecified
BAM-hinge (LVPR)
 PDB 9H85 unspecified
BAM-hinge (GSGS)
 EMDB EMD-51930 consensus EM volume
BAM-hinge (LVPR)
 EMDB EMD-51931 consensus EM volume
BAM-hinge (GSGS)
 EMDB EMD-51933 associated EM volume
BAM-hinge (LVPR) suppressor (T434A)
 BAM (beta-barrel assembly machinery) complex with BamA GSGS insertion and T434A BamA mutation BAM (beta-barrel assembly machinery) complex with BamA GSGS insertion and T434A BamA mutation 0 1 2 3 4 5
Purified as a complex with the insertion
Escherichia coli Outer membrane protein assembly factor BamA Escherichia coli 0.088951312
LVPR insert before residue G410, T434A mutation.
1 Escherichia coli BL21(DE3) LEVO AEGFVVKDIHFEGLQRVAVGAALLSMPVRTGDTVNDEDISNTIRALFATGNFEDVRVLRDGDTLLVQVKERPTIASITFS GNKSVKDDMLKQNLEASGVRVGESLDRTTIADIEKGLEDFYYSVGKYSASVKAVVTPLPRNRVDLKLVFQEGVSAEIQQI NIVGNHAFTTDELISHFQLRDEVPWWNVVGDRKYQKQKLAGDLETLRSYYLDRGYARFNIDSTQVSLTPDKKGIYVTVNI TEGDQYKLSGVEVSGNLAGHSAEIEQLTKIEPGELYNGTKVTKMEDDIKKLLGRYGYAYPRVQSMPEINDADKTVKLRVN VDAGNRFYVRKIRFEGNDTSKDAVLRREMRQMEGAWLGSDLVDQGKERLNRLGFFETVDTDTQRVPGSPDQVDVVYKVKE RNTLVPRGSFNFGIGYGAESGVSFQAGVQQDNWLGTGYAVGINGTKNDYQTYAELSVTNPYFTVDGVSLGGRLFYNDFQA DDADLSDYTNKSYGTDVTLGFPINEYNSLRAGLGYVHNSLSNMQPQVAMWRYLYSMGEHPSTSDQDNSFKTDDFTFNYGW TYNKLDRGYFPTDGSRVNLTGKVTIPGSDNEYYKVTLDTATYVPIDDDHKWVVLGRTRWGYGDGLGGKEMPFYENFYAGG SSTVRGFQSNTIGPKAVYFPHQASNYDPDYDYECATQDGAKDLCKSDDAVGGNAMAVASLEFITPTPFISDKYANSVRTS FFWDMGTVWDTNWDSSQYSGYPDYSDPSNIRMSAGIALQWMSPLGPLVFSYAQPFKKYDGDKAEQFQFNIGKTW P0A940 Outer membrane protein assembly factor BamB Escherichia coli 0.039882375 1 Escherichia coli BL21(DE3) LEVO CSLFNSEEDVVKMSPLPTVENQFTPTTAWSTSVGSGIGNFYSNLHPALADNVVYAADRAGLVKALNADDGKEIWSVSLAE KDGWFSKEPALLSGGVTVSGGHVYIGSEKAQVYALNTSDGTVAWQTKVAGEALSRPVVSDGLVLIHTSNGQLQALNEADG AVKWTVNLDMPSLSLRGESAPTTAFGAAVVGGDNGRVSAVLMEQGQMIWQQRISQATGSTEIDRLSDVDTTPVVVNGVVF ALAYNGNLTALDLRSGQIMWKRELGSVNDFIVDGNRIYLVDQNDRVMALTIDGGVTLWTQSDLLHRLLTSPVLYNGNLVV GDSEGYLHWINVEDGRFVAQQKVDSSGFQTEPVAADGKLLIQAKDGTVYSITR P77774 Outer membrane protein assembly factor BamC Escherichia coli 0.03440125 1 Escherichia coli BL21(DE3) LEVO CSSDSRYKRQVSGDEAYLEAAPLAELHAPAGMILPVTSGDYAIPVTNGSGAVGKALDIRPPAQPLALVSGARTQFTGDTA SLLVENGRGNTLWPQVVSVLQAKNYTITQRDDAGQTLTTDWVQWNRLDEDEQYRGRYQISVKPQGYQQAVTVKLLNLEQA GKPVADAASMQRYSTEMMNVISAGLDKSATDAANAAQNRASTTMDVQSAADDTGLPMLVVRGPFNVVWQRLPAALEKVGM KVTDSTRSQGNMAVTYKPLSDSDWQELGASDPGLASGDYKLQVGDLDNRSSLQFIDPKGHTLTQSQNDALVAVFQAAFSK P0A903 Outer membrane protein assembly factor BamD Escherichia coli 0.025816818 1 Escherichia coli BL21(DE3) LEVO CSGSKEEVPDNPPNEIYATAQQKLQDGNWRQAITQLEALDNRYPFGPYSQQVQLDLIYAYYKNADLPLAQAAIDRFIRLN PTHPNIDYVMYMRGLTNMALDDSALQGFFGVDRSDRDPQHARAAFSDFSKLVRGYPNSQYTTDATKRLVFLKDRLAKYEY SVAEYYTERGAWVAVVNRVEGMLRDYPDTQATRDALPLMENAYRQMQMNAQAEKVAKIIAANSSNT P0AC02 Outer membrane protein assembly factor BamE Escherichia coli 0.010391553999999999 1 Escherichia coli BL21(DE3) LEVO CSTLERVVYRPDINQGNYLTANDVSKIRVGMTQQQVAYALGTPLMSDPFGTNTWFYVFRQQPGHEGVTQQTLTLTFNSSG VLTNIDNKPALSGN P0A937 singleParticle particle 3.3 8.0 Quantifoil R1.2/1.3 COPPER 300 GLOW DISCHARGE
60 mA
 ETHANE 100 277 FEI VITROBOT MARK IV TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.9 3.0 NITROGEN FEI FALCON IV (4k x 4k) 1 7813 39.8 1 PHASE FLIPPING AND AMPLITUDE CORRECTION
Generated ab initio in RELION
 C1 4.0 FSC 0.143 CUT-OFF
Final reconstruction in cryoSPARC, postprocessing and resolution estimation in RELION.
62266 MAXIMUM LIKELIHOOD RELION 4.0 MAXIMUM LIKELIHOOD cryoSPARC emd_51933.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 364.0 364.0 364.0 90.0 90.0 90.0 X Y Z -0.28293535 0.6568976 0.0016090063 0.015584016 0.91 0.91 0.91 0.2 AUTHOR Map for BAM-hinge (LVPR) suppressor, which has an LVPR insert between BamA barrel and POTRA domain and the T434A BamA mutation. FLEXIBLE FIT
Fitting was done in ISOLDE and the models manually adjusted in coot, coupled with phenix real-space refine minimisation.
 emd_51933_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 364.0 364.0 364.0 90.0 90.0 90.0 X Y Z -0.34537345 0.7731622 0.0023218452 0.041767024 0.91 0.91 0.91 AUTHOR Half map 1 for BAM-hinge (LVPR) suppressor, which has an LVPR insert between BamA barrel and POTRA domain and the T434A BamA mutation. emd_51933_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 364.0 364.0 364.0 90.0 90.0 90.0 X Y Z -0.3553581 0.72139674 0.0022713365 0.041564357 0.91 0.91 0.91 AUTHOR Half map 2 for BAM-hinge (LVPR) suppressor, which has an LVPR insert between BamA barrel and POTRA domain and the T434A BamA mutation.