CryoEM structure of the native Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B.

2025-11-19 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY DATABASE_REFERENCES citation citation_author em_admin _citation.country _citation.journal_abbrev _citation.journal_id_CSD _citation.journal_id_ISSN _citation.journal_volume _citation.page_first _citation.page_last _citation.pdbx_database_id_DOI _citation.pdbx_database_id_PubMed _citation.title _citation.year _citation_author.identifier_ORCID _citation_author.name _em_admin.last_update PDBe PDBe 2024-09-06 2025-05-07 2025-05-07 2025-11-19 Human Frontier Science Program (HFSP) LT000515/2019 France European Molecular Biology Organization (EMBO) ALTF 891-2018 European Union European Research Council (ERC) 819826 European Union German Research Foundation (DFG) HI 739/12-4 Germany CryoEM structure of the native Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B. Nievergelt AP Hoepfner LM Matrino F Scholz M Foster HE Rodenfels J von Appen A Hippler M Pigino G Mucin, Glycoprotein, Glycocalyx, MEMBRANE PROTEIN Hoepfner LM Nievergelt AP Matrino F Scholz M Foster HE Rodenfels J von Appen A Hippler M Pigino G Unwrapping the Ciliary Coat: High-Resolution Structure and Function of the Ciliary Glycocalyx. Adv Sci DE 12 e2413355 e2413355 2025 40041987 doi:10.1002/advs.202413355 2198-3844 EMD-51661 consensus EM volume EMD-51649 focused EM volume EMD-51650 focused EM volume EMD-51654 focused EM volume EMD-51655 focused EM volume EMD-51657 focused EM volume EMD-51658 focused EM volume 9gos FULLOVERLAP EMDB EMD-51499 associated EM volume

EMDB EMD-51661 consensus EM volume EMDB EMD-51649 focused EM volume EMDB EMD-51650 focused EM volume EMDB EMD-51654 focused EM volume EMDB EMD-51655 focused EM volume EMDB EMD-51657 focused EM volume EMDB EMD-51658 focused EM volume Flagella Membrane Glycoprotein 1B Flagella Membrane Glycoprotein 1B 0 1

Material purified from endogenous Chlamydomonas cilia by lectin affinity chromatography.

Chlamydomonas reinhardtii CC-124 32M fmg1a Cilia Ciliary membrane 0.55 Flagella Membrane Glycoprotein 1B Chlamydomonas reinhardtii CC-124 32M fmg1a 0.448226625 1 LEVO MAASSPLVRLRRLALPLALVVLCAAAAHGQTLSSAVLTASNTIMATLSNVTTSTDCRAAFAYFDSNNATKAASPFANCTV SGTTSVTLILASGVSYAAGDQLNIKVNQTTLNTTAGVPFVPAAAAAAVQPVLGAATLTTASSLVVKLPLSSGNTMPDGYA TNMTICGAAVQLLSAAGAVKASPFSACLLAADTLTLTLTSSGTYAPGDVVNVVAGQSTLKNGATSYTKSAAGSVIRPTLT TVSLATTTTILIGASAPVSLPANASADVCNSIFTVALKSGTALPTALSACMAGPAVTAITATFANGTTYSDGLTVTIKAN QTLLRTGDQSASSPLFLPPASALVIAPTVLSASLTSATSITVQLPVSSTASGTLDAAGCNGAFELRAAGSSASKSSPFSA CALASNNTALVLTLASASTYTAGDIFNVKSGQSLLQVGSTAYVPQAVSVLPTLSTAILVAASVVRVGLPVVSSIPAPYSA DDCARSVIIAAANSTAAKAISGCVLSADGKALLVTLGAAYAAGDTVNVRTGQWQLRAGASVTLGPNYIAASTPVAIVPGF SSAVLTSATQVTVQLPLASALPATISASECGDAFDLLDASGTTSRVSPWTGCSIGSNNTLVLNMTAGIYVVGDQVTPKSG QTKLTFANTTAYGVLLTPINPILTAATTAMLTASSTIVVALPYAANLPASTNNGTVCNAAFDLVSAAGASRTAPFSACSI SGGTTLTLTIASTASYTAGDRINVKSGNSAFLGSLSASGPAFVHAGTAIVITPTVVSTALISNTNVFVSLSAPTSASAFN QSICNGAFDVSGLATPFTNCTLSADGTGISFLLASAGSVTSGVTTINVKSSQLFLLAAGSGSSDSPAFVPRGSALTISEA KLAGAYLTAANTIIVKLSVAAAAVDGFSSSCNNVFTLFNSSGTARASPFSACTLSTDGLTVTLTTSSWVSTDKLNIRSDQ TLLKVLGAANGPSYPALSSATEVSPAITSAHITSPTTIIVPLPVASDLTGSSCSFLVLTAATSNCALSNNGTLLTVTLSG SYTIGDTININALNSALRGTSSTGALYQPVSGATAATIQPTIGAVQVTTSTRLLVTLPAAMSSPVPNPLTADACNAALDL SGKSSPFAACTASGTTLTLDLASAFVPGDRLNVKSTNTALRLGTGASALFFQPLATSPANILNPTFVSAKATSTSVVVVS LPAASTFVKSGSATAGLVKADCDTVLAMSSGSLVGSGNACDLNTTSSSQLIVTLAGTTYAPGQTINVLTTNTMLLAGSSS GPAYQPRTITINPAYLSSDVVATAPDTVVVTLPVTSGLFAADGSSLGSTLTAAQCATVLEVKAGTTAKGLASCSLAGTTL TVKLLGNNSDVYTGGDTFNFKDTNALLLAGSANTAPAYKALATAAVIVPNLYKAVASAGDTILITLPAASTFVVSGSAVL SVSDTVCNTILTFTNSKTVKSGTNCVITGAVLSLTLNSAITDQTTVTINSGGQTTLVSGTGTTGPAYKAGTAAPISPAYL TSAAARSATSIVVTLPFTSTVNGATLTKATCDTIVEVLNGGDATKPRTLDSGTPCTLATTLLTVNLAATESFAPGDTVRI KSGNTVLLIGSAGGNAPYVQATTATPIALGYVTSSIATKATEIKVTLPVPITLIKAGVSVASLDKTDCDTLLTVASGTLA ATGSCALSGTVLTITTTSTYTPGTTTVQFTAVASSASVKILGGAGTTGTIIAALSAASSVLPGYLTSAVISGANTFTLTL PYAVTSGGNPTCSDIIEIKAANGAMKTFNGVCSVASATTVTGTTNEALLASDTVTLKGAQNALTTTTGSKIYAATAAINI QPAYLTGAYAIDDKKFVVVLPYASTLAAGTCSSIVSVTDNNNGPAESGCSLALDGTGIYLTVTVSASLTATAWKVDFKAA QTALTVGSTAWAPMATGTAKSLNAGATTWGSSIMTATAVATNVLEVTLPMSSYMADISSGCSPVTFSTANTAASCKLIGT TSSPNSILQITLTAGYVAGAVSLANAAGLIKAGSASGTAIGAASTVTIKPTFVSAVATGPRTIVVALPIQSKIIKGAPTC TGGAVTCSSGTATCQSGSPACSAAGTYTCTATDPTVGLTCAAPTVTCPASTTAACITGGSPGSIATAGNGPGCAAATTDG GTAACGAGISAVCYSSSLTTAARCASGSAFSAANGNNCDDSASSIDLDPTCYTSSTMTATAVSDAALCTGWISGMPTCSS SGKFACVSATGPTCTASTAPTCKSPFTGTANCAITFSCGGTGLVVPTCTGSFTGCSKGTTGDTCDDDIASPADCSTIFSL TGGTATIAGCSNPGSDFTAPYTTTVTLATANWVPGTTLSVAADQAAAAATNYLKPTAAITLLYTTKPSGAVVIYPSISSA TLTGPKSLQVTLPVAASVPSSGLSPADCNNIFQLYATGTTTPKTAAVFSACYLGADKQTFYLTLAAAAASTTNANTYAVK DLINIKAGQSLLKADSATAANRLAFAPLPDALLIRPAITSAVATTIASAAVIKMQLPLTSNLGTVNCATTGIKVRVDDAT DKTQANTGACSISSDANGAVLTLTLNQALGASDFTTGKGVSVVVVATSSADATKLQLFGGSDNTGPLYVTGSIPVYDVVT PGQSIVSAKAIASNQVEIKLPAPSTITTGNTCANFLAFTPTRTISSCVYDAETQLVTATVDQFAAGDAVNIAGAPNLLKY ATAAATLTDYAALAAAATVSPALVSAYTVDSTTIAVVLPATSSFYSGATNSATKVASLTDVECADVLTVLLAGKTNSAGV SACATPSNCRTLFSGAACLLGTTSAGDTLLTIKLGASYAAGDAVDVWDKNAGLNGATAAAKPLRVGTNVQALYVPRRMPV VIEPRIVSASATGARTIAVTLPVTSQLIDSTGTVISAPTQQQCASLVALPAGKSVASCAISSDFLTLTLTLAADFAPGDT VNIASGQTLLRAWKSDVGPGYELSGPLYTPSASAVTVTLSFFVSATSTAANTIVVTLPFPVKMYDLAASPAEILAADGAT PTKDNCDSVIRVIPSGSTIARTLVAPGAGVAPCVLSGSGTTITLTLDTTVSSYATGDRIDVGFGNSANLRGAATAAAVAN TSPKYTTVATLNAAASAAVVTIGPSIVSAAAASPTQVKVTLSATGTITTTPATVDDCNKIVTFTPAKTLAATSPCSVAGT TLTVNLDKATPYAGTDAVNIAAANSLAATTNPLKAGSLAFVAKATAVTIDPNLYTATAIDSLVYEVALPAASSVGSTALT AAQCGAILSLTGGRTISSTVTAPCVLDTTKTLLTVSLGTAYADGDTVTLQSTQATPWLRAASDTGPAYKVGSTLIVKPTI ASAKATTATTIEVTLPVTSVIWSTSGGAAVSTALTATECGKILSVKRGSGTVALSASGACSLSSSGSTTLTVTLASDQVF QAGDKINILASNTDSANTDKYLVATTSSSGQAYIARSSDVVIAPGFINAAYAVGPNTLSVALPVVSSIATDNDCSTVVTV RASATPTTTRTVSGACTVASDATGYYLVVTLAAGTPFVSGDEVLIKSGNTALVGSIAYASGAAGATKPIYANFDDAILTA PTTVLVTMAAVTTVSFTSKADCDAVFVFSGAGNTTKTTSPIASCALAPDGLSVTITLSSADAYVPGDAINVVKDQTSAKV GGVGGTNLVPYPTATTISPRPFGAKATLVAPTSVAFSLPAVSSLPAATAAADCNAAVRYTDVAGVDAVNPFTSCALTPDT KGVVLNTASPIYKAGDVMNIKSGNAAVRWGPQASGAAYYPAAADVPVFATVATATLVDPSTVVLNLPTVSAIPDNFTVPD CLRAIEFKTAAGVTKNGTVASCMLMPDRLGLQVKLLSAGNFSAGDTVNIKPEQAELRSSALATGPSYVPKLAAQVVNPAL FANANLTSATAITVRLPFASALATGADCKAVLALLGAGGVAKNVSSCSLGADGVTLAVTIPAASFVGGDVLNIVPGQRAL TLADGTTAYVPSKAGVLVTPNIVSATLTNATIVTVALPTASVLTSTAAADCNAAVVIARNGSAVASPLSACAVSADGLSL TLTAAATYKPMAGDTVDVAVSQTVLRAGSATGPAYVPRPSPALITVPSPPPSPPPSPAPSPPPSPPLSTANYSARGLATG PLSCNVLIGDLTVTTTAGNFTTIGMASYAGKDASYKGSCKDAVTGAVYTDDTVASTLPAGLTGLVLSPVTALASVWDLKS VADLANTNKDYLRLFGVPVNASAYGTAVQLLAYDYYVKGFVALETPAVAVLNVEGMVAANLLMYTKFFDGLNTSVAGRDI TAAQALAAGQYALAAVLEDSIAPINTTDPASILALLNVTYSVLTANATSAAGRRLLQTAPAPFTQLQAQATALAAAAAGS NALVAAQQARLITAINAGTSISAAELTNIINEASKVIVAQSTVIATAATGLGSGAISPASFTSSYTGSALSTLVAQQQLA ATPGSDVTAGPAPSPPSDKKKSNTGLIVGLVVGLVGGAIVITLIVVFIVMRRRKQNVAAAGQATA singleParticle particle 0.2 7.3 10.0 HEPES 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid 300.0 NaCl sodium chloride Quantifoil R1.2/1.3 COPPER 400 CARBON HOLEY 12.0 GLOW DISCHARGE 45 AIR 0.039

Grids were washed in chloroform before discharge.

ETHANE 90 297 LEICA EM GP

The is sample lightly clusters but can be separated due to the large size

TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 0.75 0.75 2.2 2.2 81000.0 81000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN 77.0 77.0 TFS Selectris X 10 FEI FALCON IV (4k x 4k) 4096 4096 1 8100 70.0 1 6500000 PHASE FLIPPING AND AMPLITUDE CORRECTION 10 FOURIER SPACE 3.1 FSC 0.143 CUT-OFF 583765 MAXIMUM LIKELIHOOD MAXIMUM LIKELIHOOD 26 63200.0 emd_51499.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 488.96 488.96 488.96 90.0 90.0 90.0 X Y Z 0.0 2.2082534 0.0006573865 0.017540714 0.955 0.955 0.955 0.02 AUTHOR ::::EMDATABANK.org::::EMD-51499:::: Composite map of the Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B (FMG1B), deepEMhancer post-processing. Map combined by masked maximum intensity processing over six individual sub-maps emd_51499_additional_6.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 488.96 488.96 488.96 90.0 90.0 90.0 X Y Z -0.037691798 1.9376719 0.0002360772 0.008370493 0.955 0.955 0.955 AUTHOR ::::EMDATABANK.org::::EMD-51499:::: Local refinement map of the Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B (FMG1B), deepEMhancer post-processing. Part 4/6. emd_51499_additional_5.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 488.96 488.96 488.96 90.0 90.0 90.0 X Y Z -0.038544185 2.0486226 0.0002042319 0.0073524103 0.955 0.955 0.955 AUTHOR ::::EMDATABANK.org::::EMD-51499:::: Local refinement map of the Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B (FMG1B), deepEMhancer post-processing. Part 5/6. emd_51499_additional_4.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 488.96 488.96 488.96 90.0 90.0 90.0 X Y Z -0.030438079 1.9657367 0.00021053037 0.0071449163 0.955 0.955 0.955 AUTHOR ::::EMDATABANK.org::::EMD-51499:::: Local refinement map of the Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B (FMG1B), deepEMhancer post-processing. Part 1/6. emd_51499_additional_3.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 488.96 488.96 488.96 90.0 90.0 90.0 X Y Z -0.04976883 2.2082534 0.0002169632 0.007614143 0.955 0.955 0.955 AUTHOR ::::EMDATABANK.org::::EMD-51499:::: Local refinement map of the Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B (FMG1B), deepEMhancer post-processing. Part 3/6. emd_51499_additional_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 488.96 488.96 488.96 90.0 90.0 90.0 X Y Z -0.044418544 2.096607 0.00021025504 0.007502098 0.955 0.955 0.955 AUTHOR ::::EMDATABANK.org::::EMD-51499:::: Local refinement map of the Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B (FMG1B), deepEMhancer post-processing. Part 6/6. emd_51499_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 488.96 488.96 488.96 90.0 90.0 90.0 X Y Z -0.02592599 1.8877549 0.0002257261 0.007734585 0.955 0.955 0.955 AUTHOR ::::EMDATABANK.org::::EMD-51499:::: Local refinement map of the Chlamydomonas reinhardtii Flagella Membrane Glycoprotein 1B (FMG1B), deepEMhancer post-processing. Part 2/6.