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- EMDB-36044: Human pyruvate carboxylase in BCCP-CTS state without BC -

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Basic information

Entry
Database: EMDB / ID: EMD-36044
TitleHuman pyruvate carboxylase in BCCP-CTS state without BC
Map data
Sample
  • Complex: Tetramer complex of human pyruvate carboxylase
    • Protein or peptide: Pyruvate carboxylase, mitochondrial
  • Ligand: 5-(HEXAHYDRO-2-OXO-1H-THIENO[3,4-D]IMIDAZOL-6-YL)PENTANAL
KeywordsPC / Mitochondrial / CYTOSOLIC PROTEIN
Function / homology
Function and homology information


pyruvate carboxylase / Defective HLCS causes multiple carboxylase deficiency / pyruvate carboxylase activity / Biotin transport and metabolism / viral RNA genome packaging / NADP+ metabolic process / positive regulation by host of viral process / Pyruvate metabolism / Gluconeogenesis / : ...pyruvate carboxylase / Defective HLCS causes multiple carboxylase deficiency / pyruvate carboxylase activity / Biotin transport and metabolism / viral RNA genome packaging / NADP+ metabolic process / positive regulation by host of viral process / Pyruvate metabolism / Gluconeogenesis / : / pyruvate metabolic process / biotin binding / viral release from host cell / gluconeogenesis / lipid metabolic process / mitochondrial matrix / negative regulation of gene expression / mitochondrion / ATP binding / metal ion binding / identical protein binding / cytosol / cytoplasm
Similarity search - Function
: / Pyruvate carboxylase / Carboxylase, conserved domain / Conserved carboxylase domain / Pyruvate carboxyltransferase / HMGL-like / Pyruvate carboxyltransferase domain. / Biotin-binding site / Biotin-requiring enzymes attachment site. / Biotin carboxylase-like, N-terminal domain ...: / Pyruvate carboxylase / Carboxylase, conserved domain / Conserved carboxylase domain / Pyruvate carboxyltransferase / HMGL-like / Pyruvate carboxyltransferase domain. / Biotin-binding site / Biotin-requiring enzymes attachment site. / Biotin carboxylase-like, N-terminal domain / Biotin carboxylase, C-terminal / Biotin carboxylation domain / Biotin carboxylase, N-terminal domain / Biotin carboxylase C-terminal domain / Biotin carboxylation domain profile. / Biotin carboxylase C-terminal domain / Carbamoyl-phosphate synthetase large subunit-like, ATP-binding domain / Carbamoyl-phosphate synthase L chain, ATP binding domain / Biotin-requiring enzyme / Rudiment single hybrid motif / Biotinyl/lipoyl domain profile. / Biotin/lipoyl attachment / Single hybrid motif / Pre-ATP-grasp domain superfamily / ATP-grasp fold / ATP-grasp fold profile. / Aldolase-type TIM barrel
Similarity search - Domain/homology
Pyruvate carboxylase, mitochondrial
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.83 Å
AuthorsLiu DS / Su JY
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32071192 China
CitationJournal: Nat Struct Mol Biol / Year: 2025
Title: Structural insight into synergistic activation of human 3-methylcrotonyl-CoA carboxylase.
Authors: Jiayue Su / Xuyang Tian / Hang Cheng / Desheng Liu / Ziyi Wang / Shan Sun / Hong-Wei Wang / Sen-Fang Sui /
Abstract: The enzymes 3-methylcrotonyl-coenzyme A (CoA) carboxylase (MCC), pyruvate carboxylase and propionyl-CoA carboxylase belong to the biotin-dependent carboxylase family located in mitochondria. They ...The enzymes 3-methylcrotonyl-coenzyme A (CoA) carboxylase (MCC), pyruvate carboxylase and propionyl-CoA carboxylase belong to the biotin-dependent carboxylase family located in mitochondria. They participate in various metabolic pathways in human such as amino acid metabolism and tricarboxylic acid cycle. Many human diseases are caused by mutations in those enzymes but their structures have not been fully resolved so far. Here we report an optimized purification strategy to obtain high-resolution structures of intact human endogenous MCC, propionyl-CoA carboxylase and pyruvate carboxylase in different conformational states. We also determine the structures of MCC bound to different substrates. Analysis of MCC structures in different states reveals the mechanism of the substrate-induced, multi-element synergistic activation of MCC. These results provide important insights into the catalytic mechanism of the biotin-dependent carboxylase family and are of great value for the development of new drugs for the treatment of related diseases.
History
DepositionApr 27, 2023-
Header (metadata) releaseMay 8, 2024-
Map releaseMay 8, 2024-
UpdateFeb 5, 2025-
Current statusFeb 5, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_36044.png

Downloads & links

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Map

FileDownload / File: emd_36044.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.1 Å/pix.
x 320 pix.
= 351.328 Å		1.1 Å/pix.
x 320 pix.
= 351.328 Å		1.1 Å/pix.
x 320 pix.
= 351.328 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.0979 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.138
Minimum - Maximum-0.3144675 - 0.80964243
Average (Standard dev.)-0.0016422679 (±0.034656737)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 351.328 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_36044_half_map_1.map
Projections & Slices
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Slices (1/2)
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Histogram

Histogram (log scale)

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Half map: #1

Fileemd_36044_half_map_2.map
Projections & Slices
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Sample components

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Entire : Tetramer complex of human pyruvate carboxylase

EntireName: Tetramer complex of human pyruvate carboxylase
Components
  • Complex: Tetramer complex of human pyruvate carboxylase
    • Protein or peptide: Pyruvate carboxylase, mitochondrial
  • Ligand: 5-(HEXAHYDRO-2-OXO-1H-THIENO[3,4-D]IMIDAZOL-6-YL)PENTANAL

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Supramolecule #1: Tetramer complex of human pyruvate carboxylase

SupramoleculeName: Tetramer complex of human pyruvate carboxylase / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Pyruvate carboxylase, mitochondrial

MacromoleculeName: Pyruvate carboxylase, mitochondrial / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: pyruvate carboxylase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 129.799359 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MLKFRTVHGG LRLLGIRRTS TAPAASPNVR RLEYKPIKKV MVANRGEIAI RVFRACTELG IRTVAIYSEQ DTGQMHRQKA DEAYLIGRG LAPVQAYLHI PDIIKVAKEN NVDAVHPGYG FLSERADFAQ ACQDAGVRFI GPSPEVVRKM GDKVEARAIA I AAGVPVVP ...String:
MLKFRTVHGG LRLLGIRRTS TAPAASPNVR RLEYKPIKKV MVANRGEIAI RVFRACTELG IRTVAIYSEQ DTGQMHRQKA DEAYLIGRG LAPVQAYLHI PDIIKVAKEN NVDAVHPGYG FLSERADFAQ ACQDAGVRFI GPSPEVVRKM GDKVEARAIA I AAGVPVVP GTDAPITSLH EAHEFSNTYG FPIIFKAAYG GGGRGMRVVH SYEELEENYT RAYSEALAAF GNGALFVEKF IE KPRHIEV QILGDQYGNI LHLYERDCSI QRRHQKVVEI APAAHLDPQL RTRLTSDSVK LAKQVGYENA GTVEFLVDRH GKH YFIEVN SRLQVEHTVT EEITDVDLVH AQIHVAEGRS LPDLGLRQEN IRINGCAIQC RVTTEDPARS FQPDTGRIEV FRSG EGMGI RLDNASAFQG AVISPHYDSL LVKVIAHGKD HPTAATKMSR ALAEFRVRGV KTNIAFLQNV LNNQQFLAGT VDTQF IDEN PELFQLRPAQ NRAQKLLHYL GHVMVNGPTT PIPVKASPSP TDPVVPAVPI GPPPAGFRDI LLREGPEGFA RAVRNH PGL LLMDTTFRDA HQSLLATRVR THDLKKIAPY VAHNFSKLFS MENWGGATFD VAMRFLYECP WRRLQELREL IPNIPFQ ML LRGANAVGYT NYPDNVVFKF CEVAKENGMD VFRVFDSLNY LPNMLLGMEA AGSAGGVVEA AISYTGDVAD PSRTKYSL Q YYMGLAEELV RAGTHILCIK DMAGLLKPTA CTMLVSSLRD RFPDLPLHIH THDTSGAGVA AMLACAQAGA DVVDVAADS MSGMTSQPSM GALVACTRGT PLDTEVPMER VFDYSEYWEG ARGLYAAFDC TATMKSGNSD VYENEIPGGQ YTNLHFQAHS MGLGSKFKE VKKAYVEANQ MLGDLIKVTP SSKIVGDLAQ FMVQNGLSRA EAEAQAEELS FPRSVVEFLQ GYIGVPHGGF P EPFRSKVL KDLPRVEGRP GASLPPLDLQ ALEKELVDRH GEEVTPEDVL SAAMYPDVFA HFKDFTATFG PLDSLNTRLF LQ GPKIAEE FEVELERGKT LHIKALAVSD LNRAGQRQVF FELNGQLRSI LVKDTQAMKE MHFHPKALKD VKGQIGAPMP GKV IDIKVV AGAKVAKGQP LCVLSAMKME TVVTSPMEGT VRKVHVTKDM TLEGDDLILE IE

UniProtKB: Pyruvate carboxylase, mitochondrial

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Macromolecule #2: 5-(HEXAHYDRO-2-OXO-1H-THIENO[3,4-D]IMIDAZOL-6-YL)PENTANAL

MacromoleculeName: 5-(HEXAHYDRO-2-OXO-1H-THIENO[3,4-D]IMIDAZOL-6-YL)PENTANAL
type: ligand / ID: 2 / Number of copies: 4 / Formula: BTI
Molecular weightTheoretical: 228.311 Da
Chemical component information

ChemComp-BTI:
5-(HEXAHYDRO-2-OXO-1H-THIENO[3,4-D]IMIDAZOL-6-YL)PENTANAL

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.3 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.83 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 21326
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: ANGULAR RECONSTITUTION

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