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- PDB-7vs5: The expanded head structure of phage T4 -

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Basic information

Entry
Database: PDB / ID: 7vs5
TitleThe expanded head structure of phage T4
Components
  • Capsid vertex protein
  • Major capsid protein
  • Small outer capsid protein
KeywordsVIRUS / virus assembly / capsid expansion / capsid length control / prolate virus structure / virus decoration proteins / capsid stabilization
Function / homology
Function and homology information


viral capsid, decoration / T=13 icosahedral viral capsid / viral capsid
Similarity search - Function
Small outer capsid protein / Small outer capsid protein superfamily / Small outer capsid protein / Capsid vertex protein / Major capsid protein, Myoviridae / Major capsid protein Gp23 / Capsid protein, T4-like bacteriophage-like
Similarity search - Domain/homology
Small outer capsid protein / Major capsid protein / Capsid vertex protein
Similarity search - Component
Biological speciesEnterobacteria phage T4 (virus)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsFang, Q. / Tang, W. / Fokine, A. / Mahalingam, M. / Shao, Q. / Rossmann, M.G. / Rao, V.B.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI081726 United States
National Science Foundation (NSF, United States)MCB-0923873 United States
CitationJournal: Proc Natl Acad Sci U S A / Year: 2022
Title: Structures of a large prolate virus capsid in unexpanded and expanded states generate insights into the icosahedral virus assembly.
Authors: Qianglin Fang / Wei-Chun Tang / Andrei Fokine / Marthandan Mahalingam / Qianqian Shao / Michael G Rossmann / Venigalla B Rao /
Abstract: Many icosahedral viruses assemble proteinaceous precursors called proheads or procapsids. Proheads are metastable structures that undergo a profound structural transition known as expansion that ...Many icosahedral viruses assemble proteinaceous precursors called proheads or procapsids. Proheads are metastable structures that undergo a profound structural transition known as expansion that transforms an immature unexpanded head into a mature genome-packaging head. Bacteriophage T4 is a model virus, well studied genetically and biochemically, but its structure determination has been challenging because of its large size and unusually prolate-shaped, ∼1,200-Å-long and ∼860-Å-wide capsid. Here, we report the cryogenic electron microscopy (cryo-EM) structures of T4 capsid in both of its major conformational states: unexpanded at a resolution of 5.1 Å and expanded at a resolution of 3.4 Å. These are among the largest structures deposited in Protein Data Bank to date and provide insights into virus assembly, head length determination, and shell expansion. First, the structures illustrate major domain movements and ∼70% additional gain in inner capsid volume, an essential transformation to contain the entire viral genome. Second, intricate intracapsomer interactions involving a unique insertion domain dramatically change, allowing the capsid subunits to rotate and twist while the capsomers remain fastened at quasi-threefold axes. Third, high-affinity binding sites emerge for a capsid decoration protein that clamps adjacent capsomers, imparting extraordinary structural stability. Fourth, subtle conformational changes at capsomers' periphery modulate intercapsomer angles between capsomer planes that control capsid length. Finally, conformational changes were observed at the symmetry-mismatched portal vertex, which might be involved in triggering head expansion. These analyses illustrate how small changes in local capsid subunit interactions lead to profound shifts in viral capsid morphology, stability, and volume.
History
DepositionOct 25, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 5, 2022Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
aa: Major capsid protein
ab: Major capsid protein
ac: Major capsid protein
ad: Major capsid protein
ae: Major capsid protein
af: Major capsid protein
ag: Major capsid protein
ah: Major capsid protein
ai: Major capsid protein
aj: Major capsid protein
ak: Major capsid protein
al: Major capsid protein
am: Major capsid protein
an: Major capsid protein
ao: Major capsid protein
ap: Major capsid protein
aq: Major capsid protein
ar: Major capsid protein
as: Major capsid protein
at: Major capsid protein
au: Major capsid protein
av: Major capsid protein
aw: Major capsid protein
ax: Major capsid protein
ay: Major capsid protein
az: Major capsid protein
ba: Major capsid protein
bb: Major capsid protein
bc: Major capsid protein
bd: Major capsid protein
be: Major capsid protein
bf: Major capsid protein
bg: Major capsid protein
bh: Major capsid protein
bi: Major capsid protein
bj: Major capsid protein
bk: Major capsid protein
bl: Major capsid protein
bm: Major capsid protein
bn: Major capsid protein
bo: Major capsid protein
bp: Major capsid protein
bq: Major capsid protein
br: Major capsid protein
bs: Major capsid protein
bt: Major capsid protein
bu: Major capsid protein
bv: Major capsid protein
bw: Major capsid protein
bx: Major capsid protein
by: Major capsid protein
bz: Major capsid protein
ca: Major capsid protein
cb: Major capsid protein
cc: Major capsid protein
cd: Major capsid protein
ce: Major capsid protein
cf: Major capsid protein
cg: Major capsid protein
ch: Major capsid protein
ci: Major capsid protein
cj: Major capsid protein
ck: Major capsid protein
cl: Major capsid protein
cm: Major capsid protein
cn: Major capsid protein
co: Major capsid protein
cp: Major capsid protein
cq: Major capsid protein
cr: Major capsid protein
cs: Major capsid protein
ct: Major capsid protein
cu: Major capsid protein
cv: Major capsid protein
cw: Major capsid protein
cx: Major capsid protein
cy: Major capsid protein
cz: Major capsid protein
da: Major capsid protein
db: Major capsid protein
dc: Major capsid protein
dd: Major capsid protein
de: Major capsid protein
df: Major capsid protein
dg: Major capsid protein
dh: Major capsid protein
di: Major capsid protein
dj: Major capsid protein
dk: Major capsid protein
dl: Major capsid protein
dm: Major capsid protein
dn: Major capsid protein
do: Major capsid protein
dp: Major capsid protein
dq: Major capsid protein
dr: Major capsid protein
ds: Major capsid protein
dt: Major capsid protein
du: Major capsid protein
dv: Major capsid protein
dw: Major capsid protein
dx: Major capsid protein
dy: Major capsid protein
dz: Major capsid protein
ea: Major capsid protein
eb: Major capsid protein
ec: Major capsid protein
ed: Major capsid protein
ee: Major capsid protein
ef: Major capsid protein
eg: Major capsid protein
eh: Major capsid protein
ei: Major capsid protein
ej: Major capsid protein
ek: Major capsid protein
el: Major capsid protein
em: Major capsid protein
en: Major capsid protein
eo: Major capsid protein
ep: Major capsid protein
eq: Major capsid protein
er: Major capsid protein
es: Major capsid protein
et: Major capsid protein
eu: Major capsid protein
ev: Major capsid protein
ew: Major capsid protein
ex: Major capsid protein
ey: Major capsid protein
ez: Major capsid protein
fa: Major capsid protein
fb: Major capsid protein
fc: Major capsid protein
fd: Major capsid protein
fe: Major capsid protein
ff: Major capsid protein
fg: Major capsid protein
fh: Major capsid protein
fi: Major capsid protein
fj: Major capsid protein
fk: Major capsid protein
fl: Major capsid protein
fm: Major capsid protein
fn: Major capsid protein
fo: Major capsid protein
fp: Major capsid protein
fq: Major capsid protein
fr: Major capsid protein
fs: Major capsid protein
ft: Major capsid protein
fu: Major capsid protein
fv: Major capsid protein
fw: Major capsid protein
fx: Major capsid protein
fy: Major capsid protein
fz: Major capsid protein
ga: Major capsid protein
gb: Major capsid protein
gc: Major capsid protein
gd: Major capsid protein
ge: Major capsid protein
gf: Major capsid protein
gg: Major capsid protein
gh: Major capsid protein
gi: Major capsid protein
gj: Major capsid protein
gk: Major capsid protein
gl: Major capsid protein
gm: Major capsid protein
gn: Major capsid protein
go: Major capsid protein
gp: Major capsid protein
gq: Major capsid protein
gr: Major capsid protein
gs: Major capsid protein
gt: Major capsid protein
gu: Major capsid protein
gv: Major capsid protein
gw: Major capsid protein
gx: Major capsid protein
gy: Major capsid protein
gz: Major capsid protein
ha: Major capsid protein
hb: Major capsid protein
hc: Major capsid protein
hd: Major capsid protein
he: Capsid vertex protein
hf: Capsid vertex protein
hg: Capsid vertex protein
hh: Capsid vertex protein
hi: Capsid vertex protein
hj: Capsid vertex protein
hk: Capsid vertex protein
hl: Capsid vertex protein
hm: Capsid vertex protein
hn: Capsid vertex protein
ho: Capsid vertex protein
hp: Small outer capsid protein
hq: Small outer capsid protein
hr: Small outer capsid protein
hs: Small outer capsid protein
ht: Small outer capsid protein
hu: Small outer capsid protein
hv: Small outer capsid protein
hw: Small outer capsid protein
hx: Small outer capsid protein
hy: Small outer capsid protein
hz: Small outer capsid protein
ia: Small outer capsid protein
ib: Small outer capsid protein
ic: Small outer capsid protein
id: Small outer capsid protein
ie: Small outer capsid protein
if: Small outer capsid protein
ig: Small outer capsid protein
ih: Small outer capsid protein
ii: Small outer capsid protein
ij: Small outer capsid protein
ik: Small outer capsid protein
il: Small outer capsid protein
im: Small outer capsid protein
in: Small outer capsid protein
io: Small outer capsid protein
ip: Small outer capsid protein
iq: Small outer capsid protein
ir: Small outer capsid protein
is: Small outer capsid protein
it: Small outer capsid protein
iu: Small outer capsid protein
iv: Small outer capsid protein
iw: Small outer capsid protein
ix: Small outer capsid protein
iy: Small outer capsid protein
iz: Small outer capsid protein
ja: Small outer capsid protein
jb: Small outer capsid protein
jc: Small outer capsid protein
jd: Small outer capsid protein
je: Small outer capsid protein
jf: Small outer capsid protein
jg: Small outer capsid protein
jh: Small outer capsid protein
ji: Small outer capsid protein
jj: Small outer capsid protein
jk: Small outer capsid protein
jl: Small outer capsid protein
jm: Small outer capsid protein
jn: Small outer capsid protein
jo: Small outer capsid protein
jp: Small outer capsid protein
jq: Small outer capsid protein
jr: Small outer capsid protein
js: Small outer capsid protein
jt: Small outer capsid protein
ju: Small outer capsid protein
jv: Small outer capsid protein
jw: Small outer capsid protein
jx: Small outer capsid protein
jy: Small outer capsid protein
jz: Small outer capsid protein
ka: Small outer capsid protein
kb: Small outer capsid protein
kc: Small outer capsid protein
kd: Small outer capsid protein
ke: Small outer capsid protein
kf: Small outer capsid protein
kg: Small outer capsid protein
kh: Small outer capsid protein
ki: Small outer capsid protein
kj: Small outer capsid protein
kk: Small outer capsid protein
kl: Small outer capsid protein
km: Small outer capsid protein
kn: Small outer capsid protein
ko: Small outer capsid protein
kp: Small outer capsid protein
kq: Small outer capsid protein
kr: Small outer capsid protein
ks: Small outer capsid protein
kt: Small outer capsid protein
ku: Small outer capsid protein
kv: Small outer capsid protein
kw: Small outer capsid protein
kx: Small outer capsid protein
ky: Small outer capsid protein
kz: Small outer capsid protein
la: Small outer capsid protein
lb: Small outer capsid protein
lc: Small outer capsid protein
ld: Small outer capsid protein
le: Small outer capsid protein
lf: Small outer capsid protein
lg: Small outer capsid protein
lh: Small outer capsid protein
li: Small outer capsid protein
lj: Small outer capsid protein
lk: Small outer capsid protein
ll: Small outer capsid protein
lm: Small outer capsid protein
ln: Small outer capsid protein
lo: Small outer capsid protein
lp: Small outer capsid protein
lq: Small outer capsid protein
lr: Small outer capsid protein
ls: Small outer capsid protein
lt: Small outer capsid protein
lu: Small outer capsid protein
lv: Small outer capsid protein
lw: Small outer capsid protein
lx: Small outer capsid protein
ly: Small outer capsid protein
lz: Small outer capsid protein
ma: Small outer capsid protein
mb: Small outer capsid protein
mc: Small outer capsid protein
md: Small outer capsid protein
me: Small outer capsid protein
mf: Small outer capsid protein
mg: Small outer capsid protein
mh: Small outer capsid protein
mi: Small outer capsid protein
mj: Small outer capsid protein
mk: Small outer capsid protein
ml: Small outer capsid protein
mm: Small outer capsid protein
mn: Small outer capsid protein
mo: Small outer capsid protein
mp: Small outer capsid protein
mq: Small outer capsid protein
ms: Small outer capsid protein
mt: Small outer capsid protein
mu: Small outer capsid protein
mv: Small outer capsid protein
mw: Small outer capsid protein
mx: Small outer capsid protein
my: Small outer capsid protein
mz: Small outer capsid protein
na: Small outer capsid protein
nb: Small outer capsid protein
nc: Small outer capsid protein
nd: Small outer capsid protein
ne: Small outer capsid protein
nf: Small outer capsid protein
ng: Small outer capsid protein
nh: Small outer capsid protein
ni: Small outer capsid protein
nj: Small outer capsid protein
nk: Small outer capsid protein
nl: Small outer capsid protein
nm: Small outer capsid protein
nn: Small outer capsid protein
no: Small outer capsid protein
np: Small outer capsid protein
nq: Small outer capsid protein
ns: Small outer capsid protein
nt: Small outer capsid protein
nu: Small outer capsid protein
nv: Small outer capsid protein
nw: Small outer capsid protein
nx: Small outer capsid protein
ny: Small outer capsid protein
nz: Small outer capsid protein
oa: Small outer capsid protein
ob: Small outer capsid protein
oc: Small outer capsid protein
od: Small outer capsid protein
oe: Small outer capsid protein
of: Small outer capsid protein
og: Small outer capsid protein


Theoretical massNumber of molelcules
Total (without water)12,509,875369
Polymers12,509,875369
Non-polymers00
Water0
1
aa: Major capsid protein
ab: Major capsid protein
ac: Major capsid protein
ad: Major capsid protein
ae: Major capsid protein
af: Major capsid protein
ag: Major capsid protein
ah: Major capsid protein
ai: Major capsid protein
aj: Major capsid protein
ak: Major capsid protein
al: Major capsid protein
am: Major capsid protein
an: Major capsid protein
ao: Major capsid protein
ap: Major capsid protein
aq: Major capsid protein
ar: Major capsid protein
as: Major capsid protein
at: Major capsid protein
au: Major capsid protein
av: Major capsid protein
aw: Major capsid protein
ax: Major capsid protein
ay: Major capsid protein
az: Major capsid protein
ba: Major capsid protein
bb: Major capsid protein
bc: Major capsid protein
bd: Major capsid protein
be: Major capsid protein
bf: Major capsid protein
bg: Major capsid protein
bh: Major capsid protein
bi: Major capsid protein
bj: Major capsid protein
bk: Major capsid protein
bl: Major capsid protein
bm: Major capsid protein
bn: Major capsid protein
bo: Major capsid protein
bp: Major capsid protein
bq: Major capsid protein
br: Major capsid protein
bs: Major capsid protein
bt: Major capsid protein
bu: Major capsid protein
bv: Major capsid protein
bw: Major capsid protein
bx: Major capsid protein
by: Major capsid protein
bz: Major capsid protein
ca: Major capsid protein
cb: Major capsid protein
cc: Major capsid protein
cd: Major capsid protein
ce: Major capsid protein
cf: Major capsid protein
cg: Major capsid protein
ch: Major capsid protein
ci: Major capsid protein
cj: Major capsid protein
ck: Major capsid protein
cl: Major capsid protein
cm: Major capsid protein
cn: Major capsid protein
co: Major capsid protein
cp: Major capsid protein
cq: Major capsid protein
cr: Major capsid protein
cs: Major capsid protein
ct: Major capsid protein
cu: Major capsid protein
cv: Major capsid protein
cw: Major capsid protein
cx: Major capsid protein
cy: Major capsid protein
cz: Major capsid protein
da: Major capsid protein
db: Major capsid protein
dc: Major capsid protein
dd: Major capsid protein
de: Major capsid protein
df: Major capsid protein
dg: Major capsid protein
dh: Major capsid protein
di: Major capsid protein
dj: Major capsid protein
dk: Major capsid protein
dl: Major capsid protein
dm: Major capsid protein
dn: Major capsid protein
do: Major capsid protein
dp: Major capsid protein
dq: Major capsid protein
dr: Major capsid protein
ds: Major capsid protein
dt: Major capsid protein
du: Major capsid protein
dv: Major capsid protein
dw: Major capsid protein
dx: Major capsid protein
dy: Major capsid protein
dz: Major capsid protein
ea: Major capsid protein
eb: Major capsid protein
ec: Major capsid protein
ed: Major capsid protein
ee: Major capsid protein
ef: Major capsid protein
eg: Major capsid protein
eh: Major capsid protein
ei: Major capsid protein
ej: Major capsid protein
ek: Major capsid protein
el: Major capsid protein
em: Major capsid protein
en: Major capsid protein
eo: Major capsid protein
ep: Major capsid protein
eq: Major capsid protein
er: Major capsid protein
es: Major capsid protein
et: Major capsid protein
eu: Major capsid protein
ev: Major capsid protein
ew: Major capsid protein
ex: Major capsid protein
ey: Major capsid protein
ez: Major capsid protein
fa: Major capsid protein
fb: Major capsid protein
fc: Major capsid protein
fd: Major capsid protein
fe: Major capsid protein
ff: Major capsid protein
fg: Major capsid protein
fh: Major capsid protein
fi: Major capsid protein
fj: Major capsid protein
fk: Major capsid protein
fl: Major capsid protein
fm: Major capsid protein
fn: Major capsid protein
fo: Major capsid protein
fp: Major capsid protein
fq: Major capsid protein
fr: Major capsid protein
fs: Major capsid protein
ft: Major capsid protein
fu: Major capsid protein
fv: Major capsid protein
fw: Major capsid protein
fx: Major capsid protein
fy: Major capsid protein
fz: Major capsid protein
ga: Major capsid protein
gb: Major capsid protein
gc: Major capsid protein
gd: Major capsid protein
ge: Major capsid protein
gf: Major capsid protein
gg: Major capsid protein
gh: Major capsid protein
gi: Major capsid protein
gj: Major capsid protein
gk: Major capsid protein
gl: Major capsid protein
gm: Major capsid protein
gn: Major capsid protein
go: Major capsid protein
gp: Major capsid protein
gq: Major capsid protein
gr: Major capsid protein
gs: Major capsid protein
gt: Major capsid protein
gu: Major capsid protein
gv: Major capsid protein
gw: Major capsid protein
gx: Major capsid protein
gy: Major capsid protein
gz: Major capsid protein
ha: Major capsid protein
hb: Major capsid protein
hc: Major capsid protein
hd: Major capsid protein
he: Capsid vertex protein
hf: Capsid vertex protein
hg: Capsid vertex protein
hh: Capsid vertex protein
hi: Capsid vertex protein
hj: Capsid vertex protein
hk: Capsid vertex protein
hl: Capsid vertex protein
hm: Capsid vertex protein
hn: Capsid vertex protein
ho: Capsid vertex protein
hp: Small outer capsid protein
hq: Small outer capsid protein
hr: Small outer capsid protein
hs: Small outer capsid protein
ht: Small outer capsid protein
hu: Small outer capsid protein
hv: Small outer capsid protein
hw: Small outer capsid protein
hx: Small outer capsid protein
hy: Small outer capsid protein
hz: Small outer capsid protein
ia: Small outer capsid protein
ib: Small outer capsid protein
ic: Small outer capsid protein
id: Small outer capsid protein
ie: Small outer capsid protein
if: Small outer capsid protein
ig: Small outer capsid protein
ih: Small outer capsid protein
ii: Small outer capsid protein
ij: Small outer capsid protein
ik: Small outer capsid protein
il: Small outer capsid protein
im: Small outer capsid protein
in: Small outer capsid protein
io: Small outer capsid protein
ip: Small outer capsid protein
iq: Small outer capsid protein
ir: Small outer capsid protein
is: Small outer capsid protein
it: Small outer capsid protein
iu: Small outer capsid protein
iv: Small outer capsid protein
iw: Small outer capsid protein
ix: Small outer capsid protein
iy: Small outer capsid protein
iz: Small outer capsid protein
ja: Small outer capsid protein
jb: Small outer capsid protein
jc: Small outer capsid protein
jd: Small outer capsid protein
je: Small outer capsid protein
jf: Small outer capsid protein
jg: Small outer capsid protein
jh: Small outer capsid protein
ji: Small outer capsid protein
jj: Small outer capsid protein
jk: Small outer capsid protein
jl: Small outer capsid protein
jm: Small outer capsid protein
jn: Small outer capsid protein
jo: Small outer capsid protein
jp: Small outer capsid protein
jq: Small outer capsid protein
jr: Small outer capsid protein
js: Small outer capsid protein
jt: Small outer capsid protein
ju: Small outer capsid protein
jv: Small outer capsid protein
jw: Small outer capsid protein
jx: Small outer capsid protein
jy: Small outer capsid protein
jz: Small outer capsid protein
ka: Small outer capsid protein
kb: Small outer capsid protein
kc: Small outer capsid protein
kd: Small outer capsid protein
ke: Small outer capsid protein
kf: Small outer capsid protein
kg: Small outer capsid protein
kh: Small outer capsid protein
ki: Small outer capsid protein
kj: Small outer capsid protein
kk: Small outer capsid protein
kl: Small outer capsid protein
km: Small outer capsid protein
kn: Small outer capsid protein
ko: Small outer capsid protein
kp: Small outer capsid protein
kq: Small outer capsid protein
kr: Small outer capsid protein
ks: Small outer capsid protein
kt: Small outer capsid protein
ku: Small outer capsid protein
kv: Small outer capsid protein
kw: Small outer capsid protein
kx: Small outer capsid protein
ky: Small outer capsid protein
kz: Small outer capsid protein
la: Small outer capsid protein
lb: Small outer capsid protein
lc: Small outer capsid protein
ld: Small outer capsid protein
le: Small outer capsid protein
lf: Small outer capsid protein
lg: Small outer capsid protein
lh: Small outer capsid protein
li: Small outer capsid protein
lj: Small outer capsid protein
lk: Small outer capsid protein
ll: Small outer capsid protein
lm: Small outer capsid protein
ln: Small outer capsid protein
lo: Small outer capsid protein
lp: Small outer capsid protein
lq: Small outer capsid protein
lr: Small outer capsid protein
ls: Small outer capsid protein
lt: Small outer capsid protein
lu: Small outer capsid protein
lv: Small outer capsid protein
lw: Small outer capsid protein
lx: Small outer capsid protein
ly: Small outer capsid protein
lz: Small outer capsid protein
ma: Small outer capsid protein
mb: Small outer capsid protein
mc: Small outer capsid protein
md: Small outer capsid protein
me: Small outer capsid protein
mf: Small outer capsid protein
mg: Small outer capsid protein
mh: Small outer capsid protein
mi: Small outer capsid protein
mj: Small outer capsid protein
mk: Small outer capsid protein
ml: Small outer capsid protein
mm: Small outer capsid protein
mn: Small outer capsid protein
mo: Small outer capsid protein
mp: Small outer capsid protein
mq: Small outer capsid protein
ms: Small outer capsid protein
mt: Small outer capsid protein
mu: Small outer capsid protein
mv: Small outer capsid protein
mw: Small outer capsid protein
mx: Small outer capsid protein
my: Small outer capsid protein
mz: Small outer capsid protein
na: Small outer capsid protein
nb: Small outer capsid protein
nc: Small outer capsid protein
nd: Small outer capsid protein
ne: Small outer capsid protein
nf: Small outer capsid protein
ng: Small outer capsid protein
nh: Small outer capsid protein
ni: Small outer capsid protein
nj: Small outer capsid protein
nk: Small outer capsid protein
nl: Small outer capsid protein
nm: Small outer capsid protein
nn: Small outer capsid protein
no: Small outer capsid protein
np: Small outer capsid protein
nq: Small outer capsid protein
ns: Small outer capsid protein
nt: Small outer capsid protein
nu: Small outer capsid protein
nv: Small outer capsid protein
nw: Small outer capsid protein
nx: Small outer capsid protein
ny: Small outer capsid protein
nz: Small outer capsid protein
oa: Small outer capsid protein
ob: Small outer capsid protein
oc: Small outer capsid protein
od: Small outer capsid protein
oe: Small outer capsid protein
of: Small outer capsid protein
og: Small outer capsid protein
x 5


  • complete point assembly
  • 62.5 MDa, 1845 polymers
Theoretical massNumber of molelcules
Total (without water)62,549,3731845
Polymers62,549,3731845
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation4
2


  • Idetical with deposited unit
  • point asymmetric unit
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
3


  • Idetical with deposited unit in distinct coordinate
  • point asymmetric unit, std point frame
TypeNameSymmetry operationNumber
transform to point frame1
SymmetryPoint symmetry: (Schoenflies symbol: C5 (5 fold cyclic))

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Components

#1: Protein ...
Major capsid protein / Gene product 23 / Major head protein / gp23


Mass: 56074.242 Da / Num. of mol.: 186 / Source method: isolated from a natural source / Source: (natural) Enterobacteria phage T4 (virus) / References: UniProt: P04535
#2: Protein
Capsid vertex protein / Gene product 24 / gp24


Mass: 47039.023 Da / Num. of mol.: 11 / Source method: isolated from a natural source / Source: (natural) Enterobacteria phage T4 (virus) / References: UniProt: P19896
#3: Protein ...
Small outer capsid protein / Soc


Mass: 9085.095 Da / Num. of mol.: 172 / Source method: isolated from a natural source / Source: (natural) Enterobacteria phage T4 (virus) / References: UniProt: P03715

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Escherichia virus T4 / Type: VIRUS / Entity ID: all / Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Escherichia virus T4
Details of virusEmpty: YES / Enveloped: NO / Isolate: STRAIN / Type: VIRION
Natural hostOrganism: Escherichia coli
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: GATAN CRYOPLUNGE 3 / Cryogen name: NITROGEN

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 23.1 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM softwareName: cisTEM / Category: particle selection
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C5 (5 fold cyclic)
3D reconstructionResolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 53608 / Symmetry type: POINT

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