+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-36213 | |||||||||
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Title | PhK holoenzyme in active state, muscle isoform | |||||||||
Map data | ||||||||||
Sample |
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Keywords | glycogen phosphorylase b kinase / muscle isoform / Ca2+ active state / CYTOSOLIC PROTEIN | |||||||||
Function / homology | Function and homology information phosphorylase kinase / phosphorylase kinase activity / phosphorylase kinase complex / tau-protein kinase / glycogen biosynthetic process / Glycogen breakdown (glycogenolysis) / tau-protein kinase activity / glycogen metabolic process / generation of precursor metabolites and energy / calmodulin binding ...phosphorylase kinase / phosphorylase kinase activity / phosphorylase kinase complex / tau-protein kinase / glycogen biosynthetic process / Glycogen breakdown (glycogenolysis) / tau-protein kinase activity / glycogen metabolic process / generation of precursor metabolites and energy / calmodulin binding / non-specific serine/threonine protein kinase / carbohydrate metabolic process / phosphorylation / protein serine kinase activity / enzyme binding / ATP binding / plasma membrane / cytosol Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.9 Å | |||||||||
Authors | Yang XK / Xiao JY | |||||||||
Funding support | China, 1 items
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Citation | Journal: Nat Commun / Year: 2024 Title: Architecture and activation of human muscle phosphorylase kinase. Authors: Xiaoke Yang / Mingqi Zhu / Xue Lu / Yuxin Wang / Junyu Xiao / Abstract: The study of phosphorylase kinase (PhK)-regulated glycogen metabolism has contributed to the fundamental understanding of protein phosphorylation; however, the molecular mechanism of PhK remains ...The study of phosphorylase kinase (PhK)-regulated glycogen metabolism has contributed to the fundamental understanding of protein phosphorylation; however, the molecular mechanism of PhK remains poorly understood. Here we present the high-resolution cryo-electron microscopy structures of human muscle PhK. The 1.3-megadalton PhK αβγδ hexadecamer consists of a tetramer of tetramer, wherein four αβγδ modules are connected by the central β scaffold. The α- and β-subunits possess glucoamylase-like domains, but exhibit no detectable enzyme activities. The α-subunit serves as a bridge between the β-subunit and the γδ subcomplex, and facilitates the γ-subunit to adopt an autoinhibited state. Ca-free calmodulin (δ-subunit) binds to the γ-subunit in a compact conformation. Upon binding of Ca, a conformational change occurs, allowing for the de-inhibition of the γ-subunit through a spring-loaded mechanism. We also reveal an ADP-binding pocket in the β-subunit, which plays a role in allosterically enhancing PhK activity. These results provide molecular insights of this important kinase complex. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_36213.map.gz | 294.1 MB | EMDB map data format | |
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Header (meta data) | emd-36213-v30.xml emd-36213.xml | 18.1 KB 18.1 KB | Display Display | EMDB header |
Images | emd_36213.png | 33.4 KB | ||
Filedesc metadata | emd-36213.cif.gz | 7 KB | ||
Others | emd_36213_half_map_1.map.gz emd_36213_half_map_2.map.gz | 322.2 MB 322.2 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-36213 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-36213 | HTTPS FTP |
-Related structure data
Related structure data | 8jflMC 8jfkC 8xy7C 8xyaC 8xybC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_36213.map.gz / Format: CCP4 / Size: 347.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Voxel size | X=Y=Z: 1.07 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_36213_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_36213_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : phosphorylase b kinase, muscle isoform, Ca2+ active state
Entire | Name: phosphorylase b kinase, muscle isoform, Ca2+ active state |
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Components |
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-Supramolecule #1: phosphorylase b kinase, muscle isoform, Ca2+ active state
Supramolecule | Name: phosphorylase b kinase, muscle isoform, Ca2+ active state type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Phosphorylase b kinase regulatory subunit alpha, skeletal muscle ...
Macromolecule | Name: Phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 137.469422 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MRSRSNSGVR LDGYARLVQQ TILCHQNPVT GLLPASYDQK DAWVRDNVYS ILAVWGLGLA YRKNADRDED KAKAYELEQS VVKLMRGLL HCMIRQVDKV ESFKYSQSTK DSLHAKYNTK TCATVVGDDQ WGHLQLDATS VYLLFLAQMT ASGLHIIHSL D EVNFIQNL ...String: MRSRSNSGVR LDGYARLVQQ TILCHQNPVT GLLPASYDQK DAWVRDNVYS ILAVWGLGLA YRKNADRDED KAKAYELEQS VVKLMRGLL HCMIRQVDKV ESFKYSQSTK DSLHAKYNTK TCATVVGDDQ WGHLQLDATS VYLLFLAQMT ASGLHIIHSL D EVNFIQNL VFYIEAAYKT ADFGIWERGD KTNQGISELN ASSVGMAKAA LEALDELDLF GVKGGPQSVI HVLADEVQHC QS ILNSLLP RASTSKEVDA SLLSVVSFPA FAVEDSQLVE LTKQEIITKL QGRYGCCRFL RDGYKTPKED PNRLYYEPAE LKL FENIEC EWPLFWTYFI LDGVFSGNAE QVQEYKEALE AVLIKGKNGV PLLPELYSVP PDRVDEEYQN PHTVDRVPMG KLPH MWGQS LYILGSLMAE GFLAPGEIDP LNRRFSTVPK PDVVVQVSIL AETEEIKTIL KDKGIYVETI AEVYPIRVQP ARILS HIYS SLGCNNRMKL SGRPYRHMGV LGTSKLYDIR KTIFTFTPQF IDQQQFYLAL DNKMIVEMLR TDLSYLCSRW RMTGQP TIT FPISHSMLDE DGTSLNSSIL AALRKMQDGY FGGARVQTGK LSEFLTTSCC THLSFMDPGP EGKLYSEDYD DNYDYLE SG NWMNDYDSTS HARCGDEVAR YLDHLLAHTA PHPKLAPTSQ KGGLDRFQAA VQTTCDLMSL VTKAKELHVQ NVHMYLPT K LFQASRPSFN LLDSPHPRQE NQVPSVRVEI HLPRDQSGEV DFKALVLQLK ETSSLQEQAD ILYMLYTMKG PDWNTELYN ERSATVRELL TELYGKVGEI RHWGLIRYIS GILRKKVEAL DEACTDLLSH QKHLTVGLPP EPREKTISAP LPYEALTQLI DEASEGDMS ISILTQEIMV YLAMYMRTQP GLFAEMFRLR IGLIIQVMAT ELAHSLRCSA EEATEGLMNL SPSAMKNLLH H ILSGKEFG VERSVRPTDS NVSPAISIHE IGAVGATKTE RTGIMQLKSE IKQVEFRRLS ISAESQSPGT SMTPSSGSFP SA YDQQSSK DSRQGQWQRR RRLDGALNRV PVGFYQKVWK VLQKCHGLSV EGFVLPSSTT REMTPGEIKF SVHVESVLNR VPQ PEYRQL LVEAILVLTM LADIEIHSIG SIIAVEKIVH IANDLFLQEQ KTLGADDTML AKDPASGICT LLYDSAPSGR FGTM TYLSK AAATYVQEFL PHSICAMQ UniProtKB: Phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform |
-Macromolecule #2: Phosphorylase b kinase gamma catalytic chain, skeletal muscle/hea...
Macromolecule | Name: Phosphorylase b kinase gamma catalytic chain, skeletal muscle/heart isoform type: protein_or_peptide / ID: 2 / Number of copies: 4 / Enantiomer: LEVO / EC number: phosphorylase kinase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 45.084672 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MTRDEALPDS HSAQDFYENY EPKEILGRGV SSVVRRCIHK PTSQEYAVKV IDVTGGGSFS PEEVRELREA TLKEVDILRK VSGHPNIIQ LKDTYETNTF FFLVFDLMKR GELFDYLTEK VTLSEKETRK IMRALLEVIC TLHKLNIVHR DLKPENILLD D NMNIKLTD ...String: MTRDEALPDS HSAQDFYENY EPKEILGRGV SSVVRRCIHK PTSQEYAVKV IDVTGGGSFS PEEVRELREA TLKEVDILRK VSGHPNIIQ LKDTYETNTF FFLVFDLMKR GELFDYLTEK VTLSEKETRK IMRALLEVIC TLHKLNIVHR DLKPENILLD D NMNIKLTD FGFSCQLEPG ERLREVCGTP SYLAPEIIEC SMNEDHPGYG KEVDMWSTGV IMYTLLAGSP PFWHRKQMLM LR MIMSGNY QFGSPEWDDY SDTVKDLVSR FLVVQPQNRY TAEEALAHPF FQQYLVEEVR HFSPRGKFKV IALTVLASVR IYY QYRRVK PVTREIVIRD PYALRPLRRL IDAYAFRIYG HWVKKGQQQN RAALFENTPK AVLLSLAEED Y UniProtKB: Phosphorylase b kinase gamma catalytic chain, skeletal muscle/heart isoform |
-Macromolecule #3: Phosphorylase b kinase regulatory subunit beta
Macromolecule | Name: Phosphorylase b kinase regulatory subunit beta / type: protein_or_peptide / ID: 3 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 125.032961 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MAGAAGLTAE VSWKVLERRA RTKRSGSVYE PLKSINLPRP DNETLWDKLD HYYRIVKSTL LLYQSPTTGL FPTKTCGGDQ KAKIQDSLY CAAGAWALAL AYRRIDDDKG RTHELEHSAI KCMRGILYCY MRQADKVQQF KQDPRPTTCL HSVFNVHTGD E LLSYEEYG ...String: MAGAAGLTAE VSWKVLERRA RTKRSGSVYE PLKSINLPRP DNETLWDKLD HYYRIVKSTL LLYQSPTTGL FPTKTCGGDQ KAKIQDSLY CAAGAWALAL AYRRIDDDKG RTHELEHSAI KCMRGILYCY MRQADKVQQF KQDPRPTTCL HSVFNVHTGD E LLSYEEYG HLQINAVSLY LLYLVEMISS GLQIIYNTDE VSFIQNLVFC VERVYRVPDF GVWERGSKYN NGSTELHSSS VG LAKAALE AINGFNLFGN QGCSWSVIFV DLDAHNRNRQ TLCSLLPRES RSHNTDAALL PCISYPAFAL DDEVLFSQTL DKV VRKLKG KYGFKRFLRD GYRTSLEDPN RCYYKPAEIK LFDGIECEFP IFFLYMMIDG VFRGNPKQVQ EYQDLLTPVL HHTT EGYPV VPKYYYVPAD FVEYEKNNPG SQKRFPSNCG RDGKLFLWGQ ALYIIAKLLA DELISPKDID PVQRYVPLKD QRNVS MRFS NQGPLENDLV VHVALIAESQ RLQVFLNTYG IQTQTPQQVE PIQIWPQQEL VKAYLQLGIN EKLGLSGRPD RPIGCL GTS KIYRILGKTV VCYPIIFDLS DFYMSQDVFL LIDDIKNALQ FIKQYWKMHG RPLFLVLIRE DNIRGSRFNP ILDMLAA LK KGIIGGVKVH VDRLQTLISG AVVEQLDFLR ISDTEELPEF KSFEELEPPK HSKVKRQSST PSAPELGQQP DVNISEWK D KPTHEILQKL NDCSCLASQA ILLGILLKRE GPNFITKEGT VSDHIERVYR RAGSQKLWLA VRYGAAFTQK FSSSIAPHI TTFLVHGKQV TLGAFGHEEE VISNPLSPRV IQNIIYYKCN THDEREAVIQ QELVIHIGWI ISNNPELFSG MLKIRIGWII HAMEYELQI RGGDKPALDL YQLSPSEVKQ LLLDILQPQQ NGRCWLNRRQ IDGSLNRTPT GFYDRVWQIL ERTPNGIIVA G KHLPQQPT LSDMTMYEMN FSLLVEDTLG NIDQPQYRQI VVELLMVVSI VLERNPELEF QDKVDLDRLV KEAFNEFQKD QS RLKEIEK QDDMTSFYNT PPLGKRGTCS YLTKAVMNLL LEGEVKPNND DPCLIS UniProtKB: Phosphorylase b kinase regulatory subunit beta |
-Macromolecule #4: FARNESYL
Macromolecule | Name: FARNESYL / type: ligand / ID: 4 / Number of copies: 8 / Formula: FAR |
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Molecular weight | Theoretical: 206.367 Da |
Chemical component information | ChemComp-FAR: |
-Macromolecule #5: ADENOSINE-5'-DIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 5 / Number of copies: 4 / Formula: ADP |
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Molecular weight | Theoretical: 427.201 Da |
Chemical component information | ChemComp-ADP: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8.2 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: OTHER / Nominal defocus max: 1.5 µm / Nominal defocus min: 1.1 µm |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 1.5 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: OTHER |
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Initial angle assignment | Type: OTHER |
Final angle assignment | Type: OTHER |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 432047 |