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- EMDB-77025: Cryo-EM structure of HAdV-C5 hexon trimer in complex with human c... -

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Basic information

Entry
Database: EMDB / ID: EMD-77025
TitleCryo-EM structure of HAdV-C5 hexon trimer in complex with human coagulation factor X (FX)
Map dataEM map of the purified HAdV-C5 hexon trimer in complex with the coagulation factor X
Sample
  • Complex: Purified Human adenovirus type 5 hexon trimer in complex with coagulation factor X
    • Protein or peptide: Hexon protein
    • Protein or peptide: Coagulation factor X
  • Ligand: CALCIUM ION
Keywordsadenovirus / HAdV-C5 / hexon / coagulation factor X / virus-host interaction / cryo-EM / virus capsid / VIRAL PROTEIN
Function / homology
Function and homology information


T=25 icosahedral viral capsid / coagulation factor Xa / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / microtubule-dependent intracellular transport of viral material towards nucleus / : / positive regulation of TOR signaling / Transport of gamma-carboxylated protein precursors from the endoplasmic reticulum to the Golgi apparatus / : ...T=25 icosahedral viral capsid / coagulation factor Xa / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / microtubule-dependent intracellular transport of viral material towards nucleus / : / positive regulation of TOR signaling / Transport of gamma-carboxylated protein precursors from the endoplasmic reticulum to the Golgi apparatus / : / Gamma-carboxylation of protein precursors / Removal of aminoterminal propeptides from gamma-carboxylated proteins / : / phospholipid binding / Golgi lumen / blood coagulation / viral capsid / host cell / positive regulation of cell migration / endoplasmic reticulum lumen / serine-type endopeptidase activity / external side of plasma membrane / calcium ion binding / symbiont entry into host cell / host cell nucleus / structural molecule activity / proteolysis / : / extracellular region / plasma membrane
Similarity search - Function
Adenovirus hexon protein / Adenovirus Pll, hexon, N-terminal / Adenovirus Pll, hexon, C-terminal / Adenovirus Pll, hexon, subdomain 2 / Hexon, adenovirus major coat protein, N-terminal domain / Hexon, adenovirus major coat protein, C-terminal domain / Group II dsDNA virus coat/capsid protein / Peptidase S1A, coagulation factor VII/IX/X/C/Z / : / Coagulation factor-like, Gla domain superfamily ...Adenovirus hexon protein / Adenovirus Pll, hexon, N-terminal / Adenovirus Pll, hexon, C-terminal / Adenovirus Pll, hexon, subdomain 2 / Hexon, adenovirus major coat protein, N-terminal domain / Hexon, adenovirus major coat protein, C-terminal domain / Group II dsDNA virus coat/capsid protein / Peptidase S1A, coagulation factor VII/IX/X/C/Z / : / Coagulation factor-like, Gla domain superfamily / Coagulation Factor Xa inhibitory site / EGF-like domain / EGF-type aspartate/asparagine hydroxylation site / EGF-like calcium-binding, conserved site / Calcium-binding EGF-like domain signature. / Aspartic acid and asparagine hydroxylation site. / EGF-like calcium-binding domain / Calcium-binding EGF-like domain / Vitamin K-dependent carboxylation/gamma-carboxyglutamic (GLA) domain / Gamma-carboxyglutamic acid-rich (GLA) domain / Gamma-carboxyglutamic acid-rich (GLA) domain superfamily / Vitamin K-dependent carboxylation domain. / Gla domain profile. / Domain containing Gla (gamma-carboxyglutamate) residues. / Epidermal growth factor-like domain. / EGF-like domain profile. / EGF-like domain signature 1. / EGF-like domain signature 2. / EGF-like domain / Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Serine proteases, trypsin family, histidine active site. / Serine proteases, trypsin family, serine active site. / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin domain profile. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan
Similarity search - Domain/homology
Coagulation factor X / Hexon protein
Similarity search - Component
Biological speciesHuman adenovirus 5 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.23 Å
AuthorsMa OX / Reddy VS
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI161367 United States
CitationJournal: To Be Published
Title: Structural requirements of blood factors binding to soluble hexon trimers with implications for adenovirus cell targeting and immune evasion
Authors: Ma OX / Reddy VS
History
DepositionMay 3, 2026-
Header (metadata) releaseJul 8, 2026-
Map releaseJul 8, 2026-
UpdateJul 8, 2026-
Current statusJul 8, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_77025.png

Downloads & links

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Map

FileReleased
AnnotationEM map of the purified HAdV-C5 hexon trimer in complex with the coagulation factor X
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.1 Å/pix.
x 256 pix.
= 281.6 Å		1.1 Å/pix.
x 256 pix.
= 281.6 Å		1.1 Å/pix.
x 256 pix.
= 281.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.1 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.06
Minimum - Maximum-0.06433492 - 2.0357172
Average (Standard dev.)0.0024255572 (±0.03848041)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin-128-128-128
Dimensions256256256
Spacing256256256
CellA=B=C: 281.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half map A of the purified HAdV-C5 hexon...

Fileemd_77025_half_map_1.map
AnnotationHalf map A of the purified HAdV-C5 hexon trimer in complex with the coagulation factor X
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map B of the purified HAdV-C5 hexon...

Fileemd_77025_half_map_2.map
AnnotationHalf map B of the purified HAdV-C5 hexon trimer in complex with the coagulation factor X
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Purified Human adenovirus type 5 hexon trimer in complex with coa...

EntireName: Purified Human adenovirus type 5 hexon trimer in complex with coagulation factor X
Components
  • Complex: Purified Human adenovirus type 5 hexon trimer in complex with coagulation factor X
    • Protein or peptide: Hexon protein
    • Protein or peptide: Coagulation factor X
  • Ligand: CALCIUM ION

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Supramolecule #1: Purified Human adenovirus type 5 hexon trimer in complex with coa...

SupramoleculeName: Purified Human adenovirus type 5 hexon trimer in complex with coagulation factor X
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Human adenovirus 5
Molecular weightTheoretical: 390 KDa

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Macromolecule #1: Hexon protein

MacromoleculeName: Hexon protein / type: protein_or_peptide / ID: 1
Details: The modeled hexon sequence lacks the N-terminal residues 1-6, the poorly resolved HVR region corresponding to residues 139-164, and the C-terminal residues 948-952. These residues were ...Details: The modeled hexon sequence lacks the N-terminal residues 1-6, the poorly resolved HVR region corresponding to residues 139-164, and the C-terminal residues 948-952. These residues were omitted from the model due to insufficient or unresolved cryo-EM density.
Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Human adenovirus 5
Molecular weightTheoretical: 108.107617 KDa
SequenceString: MATPSMMPQW SYMHISGQDA SEYLSPGLVQ FARATETYFS LNNKFRNPTV APTHDVTTDR SQRLTLRFIP VDREDTAYSY KARFTLAVG DNRVLDMAST YFDIRGVLDR GPTFKPYSGT AYNALAPKGA PNPCEWDEAA TALEINLEEE DDDNEDEVDE Q AEQQKTHV ...String:
MATPSMMPQW SYMHISGQDA SEYLSPGLVQ FARATETYFS LNNKFRNPTV APTHDVTTDR SQRLTLRFIP VDREDTAYSY KARFTLAVG DNRVLDMAST YFDIRGVLDR GPTFKPYSGT AYNALAPKGA PNPCEWDEAA TALEINLEEE DDDNEDEVDE Q AEQQKTHV FGQAPYSGIN ITKEGIQIGV EGQTPKYADK TFQPEPQIGE SQWYETEINH AAGRVLKKTT PMKPCYGSYA KP TNENGGQ GILVKQQNGK LESQVEMQFF STTEATAGNG DNLTPKVVLY SEDVDIETPD THISYMPTIK EGNSRELMGQ QSM PNRPNY IAFRDNFIGL MYYNSTGNMG VLAGQASQLN AVVDLQDRNT ELSYQLLLDS IGDRTRYFSM WNQAVDSYDP DVRI IENHG TEDELPNYCF PLGGVINTET LTKVKPKTGQ ENGWEKDATE FSDKNEIRVG NNFAMEINLN ANLWRNFLYS NIALY LPDK LKYSPSNVKI SDNPNTYDYM NKRVVAPGLV DCYINLGARW SLDYMDNVNP FNHHRNAGLR YRSMLLGNGR YVPFHI QVP QKFFAIKNLL LLPGSYTYEW NFRKDVNMVL QSSLGNDLRV DGASIKFDSI CLYATFFPMA HNTASTLEAM LRNDTND QS FNDYLSAANM LYPIPANATN VPISIPSRNW AAFRGWAFTR LKTKETPSLG SGYDPYYTYS GSIPYLDGTF YLNHTFKK V AITFDSSVSW PGNDRLLTPN EFEIKRSVDG EGYNVAQCNM TKDWFLVQML ANYNIGYQGF YIPESYKDRM YSFFRNFQP MSRQVVDDTK YKDYQQVGIL HQHNNSGFVG YLAPTMREGQ AYPANFPYPL IGKTAVDSIT QKKFLCDRTL WRIPFSSNFM SMGALTDLG QNLLYANSAH ALDMTFEVDP MDEPTLLYVL FEVFDVVRVH RPHRGVIETV YLRTPFSAGN ATT

UniProtKB: Hexon protein

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Macromolecule #2: Coagulation factor X

MacromoleculeName: Coagulation factor X / type: protein_or_peptide / ID: 2
Details: The modeled coagulation factor X (FX) corresponds to the N-terminal Gla domain, while the signal peptide, propeptide, and the remainder of the protein (including EGF-like domains and the ...Details: The modeled coagulation factor X (FX) corresponds to the N-terminal Gla domain, while the signal peptide, propeptide, and the remainder of the protein (including EGF-like domains and the protease domain) are not included in the model due to absence of interpretable cryo-EM density. The retained region contains multiple gamma-carboxyglutamic acid (Gla) residues required for calcium coordination.
Number of copies: 1 / Enantiomer: LEVO / EC number: coagulation factor Xa
Source (natural)Organism: Homo sapiens (human) / Tissue: blood
Molecular weightTheoretical: 55.286738 KDa
SequenceString: MGRPLHLVLL SASLAGLLLL GESLFIRREQ ANNILARVTR ANSFL(CGU)(CGU)MKK GHL(CGU)R(CGU)CM(CGU) (CGU)TCSY(CGU)(CGU)AR(CGU) VF(CGU)DSDKTN(CGU) FWNKYKDGDQ CETSPCQNQG KCKDGLGEYT CTCLEG FEG KNCELFTRKL ...String:
MGRPLHLVLL SASLAGLLLL GESLFIRREQ ANNILARVTR ANSFL(CGU)(CGU)MKK GHL(CGU)R(CGU)CM(CGU) (CGU)TCSY(CGU)(CGU)AR(CGU) VF(CGU)DSDKTN(CGU) FWNKYKDGDQ CETSPCQNQG KCKDGLGEYT CTCLEG FEG KNCELFTRKL CSLDNGDCDQ FCHEEQNSVV CSCARGYTLA DNGKACIPTG PYPCGKQTLE RRKRSVAQAT SSSGEAP DS ITWKPYDAAD LDPTENPFDL LDFNQTQPER GDNNLTRIVG GQECKDGECP WQALLINEEN EGFCGGTILS EFYILTAA H CLYQAKRFKV RVGDRNTEQE EGGEAVHEVE VVIKHNRFTK ETYDFDIAVL RLKTPITFRM NVAPACLPER DWAESTLMT QKTGIVSGFG RTHEKGRQST RLKMLEVPYV DRNSCKLSSS FIITQNMFCA GYDTKQEDAC QGDSGGPHVT RFKDTYFVTG IVSWGEGCA RKGKYGIYTK VTAFLKWIDR SMKTRGLPKA KSHAPEVITS SPLK

UniProtKB: Coagulation factor X

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Macromolecule #3: CALCIUM ION

MacromoleculeName: CALCIUM ION / type: ligand / ID: 3 / Number of copies: 7 / Formula: CA
Molecular weightTheoretical: 40.078 Da

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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: 7.2
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. / Pretreatment - Pressure: 0.038 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 98 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS KRIOS
Specialist opticsEnergy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOCONTINUUM (6k x 4k) / Number real images: 5192 / Average electron dose: 51.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.4 µm / Nominal defocus min: 0.8 µm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 715202
CTF correctionType: PHASE FLIPPING ONLY
Startup modelType of model: NONE
Details: the initial model was generated ab initio from the dataset using cryoSPARC
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.23 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.7.1) / Number images used: 96107
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementProtocol: FLEXIBLE FIT
Output model

PDB-13es:
Cryo-EM structure of HAdV-C5 hexon trimer in complex with human coagulation factor X (FX)

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