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- EMDB-49097: H1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targ... -

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Basic information

Entry
Database: EMDB / ID: EMD-49097
TitleH1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targeting Fab ST15
Map data
Sample
  • Complex: H1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targeting Fab ST15
    • Protein or peptide: ST15 Heavy Chain Fab
    • Protein or peptide: ST15 Light Chain Fab
    • Protein or peptide: H1 HA1
    • Protein or peptide: H1 HA2
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Keywordsinfluenza / hemagglutinin / H1 / monoclonal / complex / fab complex / viral fusion protein / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex
Biological speciesHomo sapiens (human) / Influenza A virus
Methodsingle particle reconstruction / cryo EM / Resolution: 3.18 Å
AuthorsBrouwer PJM / Loeffler JR / Ferguson JA / Rodriguez AJ / Han J / Ward AB
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)75N39019C00051 United States
CitationJournal: To Be Published
Title: Individualized IG genotyping coupled with high throughput isolation of influenza HA-specific monoclonal antibodies
Authors: Fisher A / Corcoran M / Chernyshev M / Brouwer PJM / Gillespie R / Nicoletto A / Loeffler JR / Ferguson JA / Rodriguez AJ / Narang S / Adori M / Angeletti D / van Gils M / Castro Dopico X / ...Authors: Fisher A / Corcoran M / Chernyshev M / Brouwer PJM / Gillespie R / Nicoletto A / Loeffler JR / Ferguson JA / Rodriguez AJ / Narang S / Adori M / Angeletti D / van Gils M / Castro Dopico X / Kanekiyo M / Ward AB / Han J / Karllson Hedestam GB
History
DepositionFeb 6, 2025-
Header (metadata) releaseFeb 18, 2026-
Map releaseFeb 18, 2026-
UpdateFeb 18, 2026-
Current statusFeb 18, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_49097.png

Downloads & links

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Map

FileDownload / File: emd_49097.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.73 Å/pix.
x 480 pix.
= 348. Å		0.73 Å/pix.
x 480 pix.
= 348. Å		0.73 Å/pix.
x 480 pix.
= 348. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.725 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.1
Minimum - Maximum-0.5646357 - 0.7221157
Average (Standard dev.)0.00005785291 (±0.01565985)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions480480480
Spacing480480480
CellA=B=C: 348.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_49097_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_49097_half_map_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_49097_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : H1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targ...

EntireName: H1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targeting Fab ST15
Components
  • Complex: H1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targeting Fab ST15
    • Protein or peptide: ST15 Heavy Chain Fab
    • Protein or peptide: ST15 Light Chain Fab
    • Protein or peptide: H1 HA1
    • Protein or peptide: H1 HA2
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: H1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targ...

SupramoleculeName: H1 hemagglutinin (A/Michigan/45/2015) in complex with anchor-targeting Fab ST15
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: ST15 Heavy Chain Fab

MacromoleculeName: ST15 Heavy Chain Fab / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.322756 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLLESGGG LVQPGGSLRL SCAASGFTFN SYGMSWVRQA PGKGLEWVSA ISGSGISTYY ADSVKGRFTI SRDNSKNTLY LQMNSLRAE DTAVYYCAKG GRDYQPYFYS MDVWGQGTTV TVSS

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Macromolecule #2: ST15 Light Chain Fab

MacromoleculeName: ST15 Light Chain Fab / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.638933 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EIVMTQSPAT LSVSPGERAT LSCRASQSIS SSLAWYQQKP GQSPRLLIYG ASTRATGIPA RFSGSGSGTE FTLTISSLQS EDFAVYYCQ QYNNWPPLTF GGGTRVEIK

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Macromolecule #3: H1 HA1

MacromoleculeName: H1 HA1 / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Influenza A virus / Strain: A/Michigan/45/2015
Molecular weightTheoretical: 38.285199 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MKAILVVLLY TFTTANADTL CIGYHANNST DTVDTVLEKN VTVTHSVNLL EDKHNGKLCK LRGVAPLHLG KCNIAGWILG NPECESLST ASSWSYIVET SNSDNGTCYP GDFINYEELR EQLSSVSSFE RFEIFPKTSS WPNHDSNKGV TAACPHAGAK S FYKNLIWL ...String:
MKAILVVLLY TFTTANADTL CIGYHANNST DTVDTVLEKN VTVTHSVNLL EDKHNGKLCK LRGVAPLHLG KCNIAGWILG NPECESLST ASSWSYIVET SNSDNGTCYP GDFINYEELR EQLSSVSSFE RFEIFPKTSS WPNHDSNKGV TAACPHAGAK S FYKNLIWL VKKGNSYPKL NQSYINDKGK EVLVLWGIHH PSTTADQQSL YQNADAYVFV GTSRYSKKFK PEIATRPKVR DQ EGRMNYY WTLVEPGDKI TFEATGNLVV PRYAFTMERN AGSGIIISDT PVHDCNTTCQ TPEGAINTSL PFQNIHPITI GKC PKYVKS TKLRLATGLR NVPSIQSR

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Macromolecule #4: H1 HA2

MacromoleculeName: H1 HA2 / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Influenza A virus / Strain: A/Michigan/45/2015
Molecular weightTheoretical: 25.195898 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: GLFGAIAGFI EGGWTGMVDG WYGYHHQNEQ GSGYAADLKS TQNAIDKITN KVNSVIEKMN TQFTAVGKEF NHLEKRIENL NKKVDDGFL DIWTYNAELL VLLENERTLD YHDSNVKNLY EKVRNQLKNN AKEIGNGCFE FYHKCDNTCM ESVKNGTYDY P KYSEEAKL ...String:
GLFGAIAGFI EGGWTGMVDG WYGYHHQNEQ GSGYAADLKS TQNAIDKITN KVNSVIEKMN TQFTAVGKEF NHLEKRIENL NKKVDDGFL DIWTYNAELL VLLENERTLD YHDSNVKNLY EKVRNQLKNN AKEIGNGCFE FYHKCDNTCM ESVKNGTYDY P KYSEEAKL NREKIDGVGY IPEAPRDGQA YVRKDGEWVL LSTFLGSENL YFQGGSHHHH HH

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Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 18 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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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

Concentration0.9 mg/mL
BufferpH: 7.4
GridModel: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 25 sec. / Details: 15 mA
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS GLACIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 42.39 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.7000000000000001 µm

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.18 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 42888
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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