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Open data
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Basic information
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| Title | PI 3-kinase alpha with nanobody 3-142, crosslinked with DSG | ||||||||||||||||||||||||||||||||||||||||||||||||
Map data | Human PI 3-kinase alpha complex composed of p110alpha and p85alpha with nanobody 3-142 bound, DSG crosslinked, Full map | ||||||||||||||||||||||||||||||||||||||||||||||||
Sample |
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Keywords | Phosphoinositide 3-kinase (PI3K) / activation / inhibition / nanobody / conformational changes / STRUCTURAL PROTEIN / TRANSFERASE | ||||||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationperinuclear endoplasmic reticulum membrane / regulation of toll-like receptor 4 signaling pathway / response to muscle inactivity / phosphatidylinositol kinase activity / phosphatidylinositol 3-kinase regulator activity / 1-phosphatidylinositol-3-kinase regulator activity / positive regulation of endoplasmic reticulum unfolded protein response / regulation of actin filament organization / negative regulation of actin filament depolymerization / phosphatidylinositol 3-kinase activator activity ...perinuclear endoplasmic reticulum membrane / regulation of toll-like receptor 4 signaling pathway / response to muscle inactivity / phosphatidylinositol kinase activity / phosphatidylinositol 3-kinase regulator activity / 1-phosphatidylinositol-3-kinase regulator activity / positive regulation of endoplasmic reticulum unfolded protein response / regulation of actin filament organization / negative regulation of actin filament depolymerization / phosphatidylinositol 3-kinase activator activity / response to butyrate / T follicular helper cell differentiation / IRS-mediated signalling / interleukin-18-mediated signaling pathway / myeloid leukocyte migration / phosphatidylinositol 3-kinase regulatory subunit binding / response to L-leucine / PI3K events in ERBB4 signaling / neurotrophin TRKA receptor binding / positive regulation of focal adhesion disassembly / cellular response to hydrostatic pressure / autosome genomic imprinting / cis-Golgi network / Activated NTRK2 signals through PI3K / negative regulation of fibroblast apoptotic process / ErbB-3 class receptor binding / negative regulation of stress fiber assembly / transmembrane receptor protein tyrosine kinase adaptor activity / Activated NTRK3 signals through PI3K / phosphatidylinositol 3-kinase complex, class IB / phosphatidylinositol 3-kinase complex / TORC2 signaling / RHOD GTPase cycle / Co-stimulation by ICOS / positive regulation of protein localization to membrane / Signaling by cytosolic FGFR1 fusion mutants / vasculature development / regulation of cellular respiration / Nephrin family interactions / RHOF GTPase cycle / kinase activator activity / Signaling by LTK in cancer / 1-phosphatidylinositol-4-phosphate 3-kinase activity / Signaling by LTK / anoikis / positive regulation of leukocyte migration / RND1 GTPase cycle / phosphatidylinositol 3-kinase complex, class IA / positive regulation of filopodium assembly / RND2 GTPase cycle / MET activates PI3K/AKT signaling / PI3K/AKT activation / relaxation of cardiac muscle / RND3 GTPase cycle / phosphatidylinositol-4,5-bisphosphate 3-kinase / 1-phosphatidylinositol-4,5-bisphosphate 3-kinase activity / growth hormone receptor signaling pathway / insulin binding / phosphatidylinositol 3-kinase / phosphatidylinositol-3-phosphate biosynthetic process / Signaling by ALK / cardiac muscle cell contraction / RHOV GTPase cycle / 1-phosphatidylinositol-3-kinase activity / RHOB GTPase cycle / vascular endothelial growth factor signaling pathway / natural killer cell mediated cytotoxicity / GP1b-IX-V activation signalling / Erythropoietin activates Phosphoinositide-3-kinase (PI3K) / PI-3K cascade:FGFR3 / response to dexamethasone / PI-3K cascade:FGFR2 / PI-3K cascade:FGFR4 / negative regulation of macroautophagy / PI-3K cascade:FGFR1 / RHOJ GTPase cycle / RHOC GTPase cycle / negative regulation of osteoclast differentiation / phosphatidylinositol phosphate biosynthetic process / phosphatidylinositol-mediated signaling / Synthesis of PIPs at the plasma membrane / RHOU GTPase cycle / CDC42 GTPase cycle / RET signaling / negative regulation of anoikis / T cell differentiation / Interleukin-3, Interleukin-5 and GM-CSF signaling / PI3K events in ERBB2 signaling / RHOG GTPase cycle / negative regulation of cell-matrix adhesion / insulin receptor substrate binding / intercalated disc / PI3K Cascade / extrinsic apoptotic signaling pathway via death domain receptors / Role of LAT2/NTAL/LAB on calcium mobilization / regulation of multicellular organism growth / RAC3 GTPase cycle / RHOA GTPase cycle / CD28 dependent PI3K/Akt signaling / RAC2 GTPase cycle Similarity search - Function | ||||||||||||||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Hart JR / Liu X / Pan C / Liang A / Ueno L / Xu Y / Quezada A / Zou X / Yang S / Zhou Q ...Hart JR / Liu X / Pan C / Liang A / Ueno L / Xu Y / Quezada A / Zou X / Yang S / Zhou Q / Schoonooghe S / Hassanzadeh-Ghassabeh G / Xia T / Shui W / Yang D / Vogt PK / Wang M-W | ||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | United States, China, 15 items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2022Title: Nanobodies and chemical cross-links advance the structural and functional analysis of PI3Kα. Authors: Jonathan R Hart / Xiao Liu / Chen Pan / Anyi Liang / Lynn Ueno / Yingna Xu / Alexandra Quezada / Xinyu Zou / Su Yang / Qingtong Zhou / Steve Schoonooghe / Gholamreza Hassanzadeh-Ghassabeh / ...Authors: Jonathan R Hart / Xiao Liu / Chen Pan / Anyi Liang / Lynn Ueno / Yingna Xu / Alexandra Quezada / Xinyu Zou / Su Yang / Qingtong Zhou / Steve Schoonooghe / Gholamreza Hassanzadeh-Ghassabeh / Tian Xia / Wenqing Shui / Dehua Yang / Peter K Vogt / Ming-Wei Wang / ![]() Abstract: Nanobodies and chemical cross-linking were used to gain information on the identity and positions of flexible domains of PI3Kα. The application of chemical cross-linking mass spectrometry (CXMS) ...Nanobodies and chemical cross-linking were used to gain information on the identity and positions of flexible domains of PI3Kα. The application of chemical cross-linking mass spectrometry (CXMS) facilitated the identification of the p85 domains BH, cSH2, and SH3 as well as their docking positions on the PI3Kα catalytic core. Binding of individual nanobodies to PI3Kα induced activation or inhibition of enzyme activity and caused conformational changes that could be correlated with enzyme function. Binding of nanobody Nb3-126 to the BH domain of p85α substantially improved resolution for parts of the PI3Kα complex, and binding of nanobody Nb3-159 induced a conformation of PI3Kα that is distinct from known PI3Kα structures. The analysis of CXMS data also provided mechanistic insights into the molecular underpinning of the flexibility of PI3Kα. | ||||||||||||||||||||||||||||||||||||||||||||||||
| History |
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_27336.map.gz | 221.4 MB | EMDB map data format | |
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| Header (meta data) | emd-27336-v30.xml emd-27336.xml | 21.7 KB 21.7 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_27336_fsc.xml | 14.2 KB | Display | FSC data file |
| Images | emd_27336.png | 31.9 KB | ||
| Masks | emd_27336_msk_1.map | 244.1 MB | Mask map | |
| Filedesc metadata | emd-27336.cif.gz | 7.3 KB | ||
| Others | emd_27336_half_map_1.map.gz emd_27336_half_map_2.map.gz | 226.3 MB 226.3 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-27336 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-27336 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8dd8MC ![]() 8dcpC ![]() 8dcxC ![]() 8dd4C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_27336.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | Human PI 3-kinase alpha complex composed of p110alpha and p85alpha with nanobody 3-142 bound, DSG crosslinked, Full map | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.832 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Mask #1
| File | emd_27336_msk_1.map | ||||||||||||
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| Projections & Slices |
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| Density Histograms |
-Half map: Human PI 3-kinase alpha complex composed of p110alpha...
| File | emd_27336_half_map_1.map | ||||||||||||
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| Annotation | Human PI 3-kinase alpha complex composed of p110alpha and p85alpha with nanobody 3-142 bound, DSG crosslinked, Half map A | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: Human PI 3-kinase alpha complex composed of p110alpha...
| File | emd_27336_half_map_2.map | ||||||||||||
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| Annotation | Human PI 3-kinase alpha complex composed of p110alpha and p85alpha with nanobody 3-142 bound, DSG crosslinked, Half map B | ||||||||||||
| Projections & Slices |
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| Density Histograms |
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Sample components
-Entire : Human PI 3-kinase alpha complex composed of p110alpha and p85alph...
| Entire | Name: Human PI 3-kinase alpha complex composed of p110alpha and p85alpha with nanobody 3-142 bound |
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| Components |
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-Supramolecule #1: Human PI 3-kinase alpha complex composed of p110alpha and p85alph...
| Supramolecule | Name: Human PI 3-kinase alpha complex composed of p110alpha and p85alpha with nanobody 3-142 bound type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit ...
| Macromolecule | Name: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: phosphatidylinositol-4,5-bisphosphate 3-kinase |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 127.822578 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MSYYHHHHHH DYDIPTTENL YFQGAMGSMP PRPSSGELWG IHLMPPRILV ECLLPNGMIV TLECLREATL ITIKHELFKE ARKYPLHQL LQDESSYIFV SVTQEAEREE FFDETRRLCD LRLFQPFLKV IEPVGNREEK ILNREIGFAI GMPVCEFDMV K DPEVQDFR ...String: MSYYHHHHHH DYDIPTTENL YFQGAMGSMP PRPSSGELWG IHLMPPRILV ECLLPNGMIV TLECLREATL ITIKHELFKE ARKYPLHQL LQDESSYIFV SVTQEAEREE FFDETRRLCD LRLFQPFLKV IEPVGNREEK ILNREIGFAI GMPVCEFDMV K DPEVQDFR RNILNVCKEA VDLRDLNSPH SRAMYVYPPN VESSPELPKH IYNKLDKGQI IVVIWVIVSP NNDKQKYTLK IN HDCVPEQ VIAEAIRKKT RSMLLSSEQL KLCVLEYQGK YILKVCGCDE YFLEKYPLSQ YKYIRSCIML GRMPNLMLMA KES LYSQLP MDCFTMPSYS RRISTATPYM NGETSTKSLW VINSALRIKI LCATYVNVNI RDIDKIYVRT GIYHGGEPLC DNVN TQRVP CSNPRWNEWL NYDIYIPDLP RAARLCLSIC SVKGRKGAKE EHCPLAWGNI NLFDYTDTLV SGKMALNLWP VPHGL EDLL NPIGVTGSNP NKETPCLELE FDWFSSVVKF PDMSVIEEHA NWSVSREAGF SYSHAGLSNR LARDNELREN DKEQLK AIS TRDPLSEITE QEKDFLWSHR HYCVTIPEIL PKLLLSVKWN SRDEVAQMYC LVKDWPPIKP EQAMELLDCN YPDPMVR GF AVRCLEKYLT DDKLSQYLIQ LVQVLKYEQY LDNLLVRFLL KKALTNQRIG HFFFWHLKSE MHNKTVSQRF GLLLESYC R ACGMYLKHLN RQVEAMEKLI NLTDILKQEK KDETQKVQMK FLVEQMRRPD FMDALQGFLS PLNPAHQLGN LRLEECRIM SSAKRPLWLN WENPDIMSEL LFQNNEIIFK NGDDLRQDML TLQIIRIMEN IWQNQGLDLR MLPYGCLSIG DCVGLIEVVR NSHTIMQIQ CKGGLKGALQ FNSHTLHQWL KDKNKGEIYD AAIDLFTRSC AGYCVATFIL GIGDRHNSNI MVKDDGQLFH I DFGHFLDH KKKKFGYKRE RVPFVLTQDF LIVISKGAQE CTKTREFERF QEMCYKAYLA IRQHANLFIN LFSMMLGSGM PE LQSFDDI AYIRKTLALD KTEQEALEYF MKQMNDAHHG GWTTKMDWIF HTIKQHALN UniProtKB: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform |
-Macromolecule #2: Phosphatidylinositol 3-kinase regulatory subunit alpha
| Macromolecule | Name: Phosphatidylinositol 3-kinase regulatory subunit alpha type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 83.623203 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MAEGYQYRAL YDYKKEREED IDLHLGDILT VNKGSLVALG FSDGQEARPE EIGWLNGYNE TTGERGDFPG TYVEYIGRKK ISPPTPKPR PPRPLPVAPG SSKTEADVEQ QALTLPDLAE QFAPPDIAPP LLIKLVEAIE KKGLECSTLY RTQSSSNLAE L RQLLDCDT ...String: MAEGYQYRAL YDYKKEREED IDLHLGDILT VNKGSLVALG FSDGQEARPE EIGWLNGYNE TTGERGDFPG TYVEYIGRKK ISPPTPKPR PPRPLPVAPG SSKTEADVEQ QALTLPDLAE QFAPPDIAPP LLIKLVEAIE KKGLECSTLY RTQSSSNLAE L RQLLDCDT PSVDLEMIDV HVLADAFKRY LLDLPNPVIP AAVYSEMISL APEVQSSEEY IQLLKKLIRS PSIPHQYWLT LQ YLLKHFF KLSQTSSKNL LNARVLSEIF SPMLFRFSAA SSDNTENLIK VIEILISTEW NERQPAPALP PKPPKPTTVA NNG MNNNMS LQDAEWYWGD ISREEVNEKL RDTADGTFLV RDASTKMHGD YTLTLRKGGN NKLIKIFHRD GKYGFSDPLT FSSV VELIN HYRNESLAQY NPKLDVKLLY PVSKYQQDQV VKEDNIEAVG KKLHEYNTQF QEKSREYDRL YEEYTRTSQE IQMKR TAIE AFNETIKIFE EQCQTQERYS KEYIEKFKRE GNEKEIQRIM HNYDKLKSRI SEIIDSRRRL EEDLKKQAAE YREIDK RMN SIKPDLIQLR KTRDQYLMWL TQKGVRQKKL NEWLGNENTE DQYSLVEDDE DLPHHDEKTW NVGSSNRNKA ENLLRGK RD GTFLVRESSK QGCYACSVVV DGEVKHCVIN KTATGYGFAE PYNLYSSLKE LVLHYQHTSL VQHNDSLNVT LAYPVYAQ Q RR UniProtKB: Phosphatidylinositol 3-kinase regulatory subunit alpha |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 1.0 mg/mL |
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| Buffer | pH: 7.6 |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 70.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: OTHER |
| Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States,
China, 15 items
Citation



























X (Sec.)
Y (Row.)
Z (Col.)












































Trichoplusia ni (cabbage looper)
Processing


