- PDB-6tmg: Cryo-EM structure of Toxoplasma gondii mitochondrial ATP synthase... -
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基本情報
登録情報
データベース: PDB / ID: 6tmg
タイトル
Cryo-EM structure of Toxoplasma gondii mitochondrial ATP synthase dimer, membrane region model
要素
ATPTG1
ATPTG10
ATPTG11
ATPTG12
ATPTG13
ATPTG14
ATPTG15
ATPTG16
ATPTG17
ATPTG2
ATPTG3
ATPTG4
ATPTG5
ATPTG6
ATPTG7
ATPTG8
ATPTG9
subunit 8
subunit a
subunit b
subunit d
subunit f
subunit i/j
subunit k
キーワード
MEMBRANE PROTEIN / mitochondrial / ATP synthase / membrane region / lipids
機能・相同性
機能・相同性情報
mitochondrial electron transport, ubiquinol to cytochrome c / proton transmembrane transporter activity / proton motive force-driven ATP synthesis / : / electron transfer activity / mitochondrial inner membrane / heme binding / metal ion binding / membrane 類似検索 - 分子機能
: / : / ATPTG10-like / Apicomplexa microprotein / ATP synthase, F0 complex, subunit D superfamily, mitochondrial / Cytochrome c1, transmembrane anchor, C-terminal / Cytochrome c1 / Cytochrome C1 family / Thioredoxin / Cytochrome c family profile. ...: / : / ATPTG10-like / Apicomplexa microprotein / ATP synthase, F0 complex, subunit D superfamily, mitochondrial / Cytochrome c1, transmembrane anchor, C-terminal / Cytochrome c1 / Cytochrome C1 family / Thioredoxin / Cytochrome c family profile. / Cytochrome c-like domain / Cytochrome c-like domain superfamily / Thioredoxin domain / Thioredoxin-like superfamily 類似検索 - ドメイン・相同性
CARDIOLIPIN / 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE / 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine / Uncharacterized protein / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7 / Uncharacterized protein / Putative membrane protein / Transmembrane protein / ATPTG10-like domain-containing protein / Microprotein domain-containing protein ...CARDIOLIPIN / 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE / 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine / Uncharacterized protein / NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7 / Uncharacterized protein / Putative membrane protein / Transmembrane protein / ATPTG10-like domain-containing protein / Microprotein domain-containing protein / Uncharacterized protein / Transmembrane protein / Transmembrane protein / Uncharacterized protein / CHCH domain-containing protein / Uncharacterized protein / Transmembrane protein / Transmembrane protein / Thioredoxin domain-containing protein / Uncharacterized protein / Uncharacterized protein / Transmembrane protein / Uncharacterized protein / Transmembrane protein / Putative myosin heavy chain / Cytochrome c1, heme protein / Uncharacterized protein 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2021 タイトル: ATP synthase hexamer assemblies shape cristae of Toxoplasma mitochondria. 著者: Alexander Mühleip / Rasmus Kock Flygaard / Jana Ovciarikova / Alice Lacombe / Paula Fernandes / Lilach Sheiner / Alexey Amunts / 要旨: Mitochondrial ATP synthase plays a key role in inducing membrane curvature to establish cristae. In Apicomplexa causing diseases such as malaria and toxoplasmosis, an unusual cristae morphology has ...Mitochondrial ATP synthase plays a key role in inducing membrane curvature to establish cristae. In Apicomplexa causing diseases such as malaria and toxoplasmosis, an unusual cristae morphology has been observed, but its structural basis is unknown. Here, we report that the apicomplexan ATP synthase assembles into cyclic hexamers, essential to shape their distinct cristae. Cryo-EM was used to determine the structure of the hexamer, which is held together by interactions between parasite-specific subunits in the lumenal region. Overall, we identified 17 apicomplexan-specific subunits, and a minimal and nuclear-encoded subunit-a. The hexamer consists of three dimers with an extensive dimer interface that includes bound cardiolipins and the inhibitor IF. Cryo-ET and subtomogram averaging revealed that hexamers arrange into ~20-megadalton pentagonal pyramids in the curved apical membrane regions. Knockout of the linker protein ATPTG11 resulted in the loss of pentagonal pyramids with concomitant aberrantly shaped cristae. Together, this demonstrates that the unique macromolecular arrangement is critical for the maintenance of cristae morphology in Apicomplexa.
履歴
登録
2019年12月4日
登録サイト: PDBE / 処理サイト: PDBE
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2020年12月16日
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改定 1.0
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Data content type: EM metadata / Data content type: EM metadata / EM metadata / EM metadata Group: Database references / Experimental summary / Structure summary Data content type: EM metadata / EM metadata / EM metadata / カテゴリ: database_2 / em_admin / entity Data content type: EM metadata / EM metadata ...EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata Item: _chem_comp.name / _database_2.pdbx_DOI ..._chem_comp.name / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update / _entity.formula_weight / _entity.pdbx_description