8IC2 image
Deposition Date 2023-02-10
Release Date 2024-09-18
Last Version Date 2024-12-04
Entry Detail
PDB ID:
8IC2
Keywords:
ELECTRON TRANSPORT
Title:
Respiratory complex CI:CIII2, type I, PERK -/- mouse under cold temperature
Biological Source:
Source Organism:
Mus musculus (Taxon ID: 10090)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
6.30 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
8IC2 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 3
Gene (Uniprot):mt-Nd3
Chain IDs:A
Chain Length:115
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P03899 Pfam ID:PF00507
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit 1, mitochondrial
Gene (Uniprot):Uqcrc1
Chain IDs:TA (auth: AA), EB (auth: Aa)
Chain Length:480
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q9CZ13 Pfam ID:PF00675, PF05193
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit 2, mitochondrial
Gene (Uniprot):Uqcrc2
Chain IDs:UA (auth: AB), FB (auth: Ab)
Chain Length:453
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q9DB77 Pfam ID:PF00675, PF05193
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b
Gene (Uniprot):Mt-Cyb
Chain IDs:VA (auth: AC), GB (auth: Ac)
Chain Length:381
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:P00158 Pfam ID:PF00033, PF00032
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome c1, heme protein, mitochondrial
Gene (Uniprot):Cyc1
Chain IDs:WA (auth: AD), HB (auth: Ad)
Chain Length:325
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q9D0M3 Pfam ID:PF02167
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit Rieske, mitochondrial
Gene (Uniprot):Uqcrfs1
Chain IDs:XA (auth: AE), BB (auth: AI), IB (auth: Ae)
Chain Length:274
Number of Molecules:3
Biological Source:Mus musculus
UniProt ID:Q9CR68 Pfam ID:PF09165, PF02921, PF00355
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit 7
Gene (Uniprot):Uqcrb
Chain IDs:YA (auth: AF), JB (auth: Af)
Chain Length:111
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q9CQB4 Pfam ID:PF02271
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit 8
Gene (Uniprot):Uqcrq
Chain IDs:ZA (auth: AG), KB (auth: Ag)
Chain Length:82
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q9CQ69 Pfam ID:PF02939
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit 6, mitochondrial
Gene (Uniprot):Uqcrh
Chain IDs:AB (auth: AH), LB (auth: Ah)
Chain Length:89
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:P99028 Pfam ID:PF02320
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit 9
Gene (Uniprot):Uqcr10
Chain IDs:CB (auth: AJ), MB (auth: Aj)
Chain Length:64
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q8R1I1 Pfam ID:PF05365
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytochrome b-c1 complex subunit 10
Gene (Uniprot):Uqcr11
Chain IDs:DB (auth: AK), NB (auth: Ak)
Chain Length:56
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q9CPX8 Pfam ID:PF08997
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 7, mitochondrial
Gene (Uniprot):Ndufs7
Chain IDs:B
Chain Length:224
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9DC70 Pfam ID:PF01058
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, mitochondrial
Gene (Uniprot):Ndufs3
Chain IDs:C
Chain Length:263
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9DCT2 Pfam ID:PF00329
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial
Gene (Uniprot):Ndufs2
Chain IDs:D
Chain Length:120
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q91WD5 Pfam ID:PF00346
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] flavoprotein 2, mitochondrial
Gene (Uniprot):Ndufv2
Chain IDs:E
Chain Length:248
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9D6J6 Pfam ID:PF01257
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial
Gene (Uniprot):Ndufv1
Chain IDs:F
Chain Length:57
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q91YT0 Pfam ID:PF01512, PF22461, PF10589
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial
Gene (Uniprot):Ndufs1
Chain IDs:G
Chain Length:151
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q91VD9 Pfam ID:PF13510, PF10588, PF22117, PF22151, PF00384, PF09326
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 1
Gene (Uniprot):Mtnd1
Chain IDs:H
Chain Length:189
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P03888 Pfam ID:PF00146
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 8, mitochondrial
Gene (Uniprot):Ndufs8
Chain IDs:I
Chain Length:212
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q8K3J1 Pfam ID:PF12838
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 6
Gene (Uniprot):Mtnd6
Chain IDs:J
Chain Length:105
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P03925 Pfam ID:PF00499
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 4L
Gene (Uniprot):Mtnd4l
Chain IDs:K
Chain Length:104
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P03903 Pfam ID:PF00420
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 5
Gene (Uniprot):Mtnd5
Chain IDs:L
Chain Length:186
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P03921 Pfam ID:PF00662, PF00361, PF06455
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 4
Gene (Uniprot):Mtnd4
Chain IDs:M
Chain Length:459
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P03911 Pfam ID:PF01059, PF00361
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH-ubiquinone oxidoreductase chain 2
Gene (Uniprot):mt-Nd2
Chain IDs:N
Chain Length:345
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P03893 Pfam ID:PF00361, PF06444
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial
Gene (Uniprot):Ndufa10
Chain IDs:O
Chain Length:137
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q99LC3 Pfam ID:PF01712
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9, mitochondrial
Gene (Uniprot):Ndufa9
Chain IDs:P
Chain Length:377
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9DC69 Pfam ID:PF05368
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial
Gene (Uniprot):Ndufs4
Chain IDs:Q
Chain Length:145
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CXZ1 Pfam ID:PF04800
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial
Gene (Uniprot):Ndufs6
Chain IDs:R
Chain Length:113
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P52503 Pfam ID:PF10276
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 2
Gene (Uniprot):Ndufa2
Chain IDs:S
Chain Length:99
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQ75 Pfam ID:PF05047
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Acyl carrier protein, mitochondrial
Gene (Uniprot):Ndufab1
Chain IDs:T, U
Chain Length:156
Number of Molecules:2
Biological Source:Mus musculus
UniProt ID:Q9CR21 Pfam ID:PF00550
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5
Gene (Uniprot):Ndufa5
Chain IDs:V
Chain Length:116
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CPP6 Pfam ID:PF04716
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 6
Gene (Uniprot):Ndufa6
Chain IDs:W
Chain Length:131
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQZ5 Pfam ID:PF13233
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8
Gene (Uniprot):Ndufa8
Chain IDs:X
Chain Length:172
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9DCJ5 Pfam ID:PF06747
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 11
Gene (Uniprot):Ndufa11
Chain IDs:Y
Chain Length:143
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:G5E814 Pfam ID:PF02466
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13
Gene (Uniprot):Ndufa13
Chain IDs:Z
Chain Length:144
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9ERS2 Pfam ID:PF06212
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1
Gene (Uniprot):Ndufa1
Chain IDs:AA (auth: a)
Chain Length:115
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:O35683 Pfam ID:PF15879
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3
Gene (Uniprot):Ndufa3
Chain IDs:BA (auth: b)
Chain Length:224
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQ91 Pfam ID:PF14987
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial
Gene (Uniprot):Ndufc1
Chain IDs:CA (auth: c)
Chain Length:263
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQY9 Pfam ID:PF15088
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 subunit C2
Gene (Uniprot):Ndufc2
Chain IDs:DA (auth: d)
Chain Length:120
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQ54 Pfam ID:PF06374
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] iron-sulfur protein 5
Gene (Uniprot):Ndufs5
Chain IDs:EA (auth: e)
Chain Length:248
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q99LY9 Pfam ID:PF10200
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1
Gene (Uniprot):Ndufb1
Chain IDs:FA (auth: f)
Chain Length:57
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P0DN34 Pfam ID:PF08040
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 11, mitochondrial
Gene (Uniprot):Ndufb11
Chain IDs:GA (auth: g)
Chain Length:151
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:O09111 Pfam ID:PF10183
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial
Gene (Uniprot):Ndufb5
Chain IDs:HA (auth: h)
Chain Length:189
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQH3 Pfam ID:PF09781
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6
Gene (Uniprot):Ndufb6
Chain IDs:IA (auth: i)
Chain Length:212
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q3UIU2 Pfam ID:PF09782
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2, mitochondrial
Gene (Uniprot):Ndufb2
Chain IDs:JA (auth: j)
Chain Length:105
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CPU2 Pfam ID:PF14813
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3
Gene (Uniprot):Ndufb3
Chain IDs:KA (auth: k)
Chain Length:104
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQZ6 Pfam ID:PF08122
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial
Gene (Uniprot):Ndufb8
Chain IDs:LA (auth: l)
Chain Length:186
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9D6J5 Pfam ID:PF05821
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4
Gene (Uniprot):Ndufb4
Chain IDs:MA (auth: m)
Chain Length:459
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQC7 Pfam ID:PF07225
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9
Gene (Uniprot):Ndufb9
Chain IDs:NA (auth: n)
Chain Length:345
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CQJ8 Pfam ID:PF05347
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7
Gene (Uniprot):Ndufb7
Chain IDs:OA (auth: o)
Chain Length:137
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9CR61 Pfam ID:PF05676
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10
Gene (Uniprot):Ndufb10
Chain IDs:PA (auth: p)
Chain Length:377
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9DCS9 Pfam ID:PF10249
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12
Gene (Uniprot):Ndufa12
Chain IDs:QA (auth: q)
Chain Length:145
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q7TMF3 Pfam ID:PF05071
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 7
Gene (Uniprot):Ndufa7
Chain IDs:RA (auth: r)
Chain Length:113
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q9Z1P6 Pfam ID:PF07347
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrial
Gene (Uniprot):Ndufv3
Chain IDs:SA (auth: s)
Chain Length:99
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:Q8BK30 Pfam ID:PF15880
Ligand Molecules
3PE
ADP
CDL
EHZ
FES
FMN
HEC
HEM
NDP
PC1
SF4
U10
UQ1
UQ6
UQ9
ZN
Primary Citation
Structural basis of respiratory complex adaptation to cold temperatures.
Cell 187 6584 ? (2024)
PMID: 39395414 DOI: 10.1016/j.cell.2024.09.029

Abstact

In response to cold, mammals activate brown fat for respiratory-dependent thermogenesis reliant on the electron transport chain. Yet, the structural basis of respiratory complex adaptation upon cold exposure remains elusive. Herein, we combined thermoregulatory physiology and cryoelectron microscopy (cryo-EM) to study endogenous respiratory supercomplexes from mice exposed to different temperatures. A cold-induced conformation of CI:III2 (termed type 2) supercomplex was identified with a ∼25° rotation of CIII2 around its inter-dimer axis, shortening inter-complex Q exchange space, and exhibiting catalytic states that favor electron transfer. Large-scale supercomplex simulations in mitochondrial membranes reveal how lipid-protein arrangements stabilize type 2 complexes to enhance catalytic activity. Together, our cryo-EM studies, multiscale simulations, and biochemical analyses unveil the thermoregulatory mechanisms and dynamics of increased respiratory capacity in brown fat at the structural and energetic level.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
8IC2