7BTX: Mitochondrial outer membrane beta-barrel protein

The mitochondrial SAM-Mdm10 supercomplex in GDN micelle from S.cere. Determined by electron microscopy at 2.8 Å resolution. Released 20 Jan 2021.

Method
Electron microscopy
Resolution
2.8 Å
Organism
Saccharomyces cerevisiae
Chains
4
Atoms
10,168
Mol. weight
172.46 kDa
Released
20 Jan 2021

Explore 7BTX in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

7BTX contains 46 α-helices and 70 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 5 helices, 22 β-strands

ElementResiduesLengthSheet
β-strand126-12941
β-strand139-14681
β-strand156-166111
β-strand169-181131
β-strand184-196131
α-helix198-2014
β-strand203-216141
β-strand235-251171
α-helix264-2674
β-strand271-285151
β-strand296-306111
β-strand310-322131
β-strand330-342131
α-helix350-3523
α-helix353-3553
β-strand35712
β-strand35913
β-strand37313
β-strand37614
β-strand38114
β-strand38412
β-strand386-395101
β-strand408-420131
α-helix428-4336
β-strand440-449101
β-strand454-466131
β-strand474-48071
Chain B: 19 helices, 12 β-strands
ElementResiduesLengthSheet
β-strand21-2331
α-helix31-4010
β-strand41-4225
β-strand4516
β-strand60-6455
β-strand67-6937
β-strand7518
β-strand76-7837
α-helix81-9414
β-strand9716
β-strand10018
β-strand115-11735
α-helix120-1223
β-strand130-13345
β-strand139-14135
α-helix143-15210
α-helix158-1669
α-helix167-1715
α-helix172-1776
α-helix178-1825
α-helix185-1917
α-helix204-21512
α-helix217-2248
α-helix230-2334
α-helix235-2417
α-helix248-27124
α-helix272-2743
α-helix282-2832
α-helix284-29613
α-helix305-3117
α-helix314-32411
Chain C: 18 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand5-739
β-strand11110
β-strand14110
α-helix20-3011
α-helix35-384
β-strand46111
β-strand4719
α-helix52-543
β-strand62-6549
β-strand69-7249
α-helix74-8310
α-helix105-1073
α-helix108-11710
α-helix118-1225
α-helix123-1319
α-helix134-1363
α-helix137-1415
α-helix157-16812
α-helix187-1937
α-helix205-24036
α-helix250-26213
α-helix268-27811
α-helix281-29515
β-strand304111
α-helix316-3183
α-helix320-3256
Chain L: 4 helices, 28 β-strands
ElementResiduesLengthSheet
α-helix5-1612
α-helix20-223
α-helix30-334
β-strand44-48512
β-strand55-62812
β-strand68-76912
α-helix81-833
β-strand140-147812
β-strand152-1621112
β-strand165-1741012
β-strand179-1891112
β-strand194-199612
β-strand206112
β-strand209-211312
β-strand230-231213
β-strand234-240712
β-strand245-251712
β-strand252-258713
β-strand263-269713
β-strand280-284513
β-strand292-295413
β-strand296-297214
β-strand306-307214
β-strand313-316415
β-strand413-420815
β-strand426-434915
β-strand438112
β-strand439-447915
β-strand481115
β-strand486115
β-strand488112
β-strand491-492212

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Mitochondrial outer membrane beta-barrel proteinAprotein363Saccharomyces cerevisiaeE9P977 (AlphaFold model)
Sorting assembly machinery 35 kDa subunitBprotein329Saccharomyces cerevisiaeP14693 (AlphaFold model)
Sorting assembly machinery 37 kDa subunitCprotein327Saccharomyces cerevisiaeP50110 (AlphaFold model)
MDM10 isoform 1Lprotein493Saccharomyces cerevisiaeA0A6A5PXD8
Sequence of entity 1 (A), FASTA
>7BTX_1 Mitochondrial outer membrane beta-barrel protein (chains A)
TFTAKTGTNFGNDNDAEAYLQFEKLIDKKYLKLPTRVNLEILRGTKIHSSFLFNSYSSLS
PQSILNLKVFSQFYNWNTNKGLDIGQRGARLSLRYEPLFLHKLLHNPHSNESPTLFHEWF
LETCWRSTKICSQGTSAPYMYSGTMLSQAGDQLRTILGHTFVLDKRDHIMCPTKGSMLKW
SNELSPGKHLKTQLELNSVKSWMNDDFITFSTTIKTGYLKNLSSQQSLPVHICDKFQSGG
PSDIRGFQTFGLGPRDLYDAVGGDAFVSYGLSVFSRLPWKKVEKSNFRLHWFFNGGKLVN
HDNTSLGNCIGQLSKEHSTSTGIGLVLRHPMARFELNFTLPITAHENDLIRKGFQFGLGL
AFL
Sequence of entity 2 (B), FASTA
>7BTX_2 Sorting assembly machinery 35 kDa subunit (chains B)
MVSSFSVPMPVKRIFDTFPLQTYAAQTDKDEAVALEIQRRSYTFTERGGGSSELTVEGTY
KLGVYNVFLEANTGAALATDPWCLFVQLALCQKNGLVLPTHSQEQTPSHTCNHEMLVLSR
LSNPDEALPILVEGYKKRIIRSTVAISEIMRSRILDDAEQLMYYTLLDTVLYDCWITQII
FCASDAQFMELYSCQKLSGSIVTPLDVENSLLQKLSAKSLKISLTKRNKFQFRHREIVKS
MQGVYHNHHNSVNQEQVLNVLFENSKQVLLGLKDMLKSDGQPTYLHLKIASYILCITNVK
EPIKLKTFVENECKELVQFAQDTLKNFVQ
Sequence of entity 3 (C), FASTA
>7BTX_3 Sorting assembly machinery 37 kDa subunit (chains C)
MVKGSVHLWGKDGKASLISVDSIALVWFIKLCTSEEAKSMVAGLQIVFSNNTDLSSDGKL
PVLILDNGTKVSGYVNIVQFLHKNICTSKYEKGTDYEEDLAIVRKKDRLLEYSLLNYVDV
EISRLTDYQLFLNTKNYNEYTKKLFSKLLYFPMWYNTPLQLRSQARENCEEIIGSLTLED
DEEFVESKAMESASQLAQSKTFKIAHKNKIKGKQELQQVKYNLQFDNRLQSCVSNWLAAR
KKLDDSVILSSDLLFLANLYVQLGLPDGNRIRSKLEQTFGSELLNSMSNKIDDFVHRPSN
NLEQRDPQFREQGNVVMSLYNLACKYI
Sequence of entity 4 (L), FASTA
>7BTX_4 MDM10 isoform 1 (chains L)
MLPYMDQVLRAFYQSTHWSTQNSYEDITATSRTLLDFRIPSAIHLQISNKSTPNTFNSLD
FSTRSRINGSLSYLYSDAQQLEKFMRNSTDIPLQDATETYRQLQPNLNFSVSSANTLSSD
NTTVDNDKKLLHDSKFVKKSLYYGRMYYPSSDLEAMIIKRLSPQTQFMLKGVSSFKESLN
VLTCYFQRDSHRNLQEWIFSTSDLLCGYRVLHNFLTTPSKFNTSLYNNSSLSLGAEFWLG
LVSLSPGCSTTLRYYTHSTNTGRPLTLTLSWNPLFGHISSTYSAKTGTNSTFCAKYDFNL
YSIESNLSFGCEFWQKKHHLLETNKNNNDKLEPISDELVDINPNSRATKLLHENVPDLNS
AVNDIPSTLDIPVHKQKLLNDLTYAFSSSLRKIDEERSTIEKFDNKINSSIFTSVWKLST
SLRDKTLKLLWEGKWRGFLISAGTELVFTRGFQESLSDDEKNDNAISISATDTENGNIPV
FPAKFGIQFQYST

Primary citation

Mitochondrial sorting and assembly machinery operates by beta-barrel switching. Takeda, H., Tsutsumi, A., Nishizawa, T. et al. Nature (2021) 590:163-169. DOI 10.1038/s41586-020-03113-7 · PubMed

Other PDB entries of the same protein (UniProt E9P977 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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