5MQ3

Structure of AaLS-neg


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure and assembly of scalable porous protein cages.

Sasaki, E.Bohringer, D.van de Waterbeemd, M.Leibundgut, M.Zschoche, R.Heck, A.J.Ban, N.Hilvert, D.

(2017) Nat Commun 8: 14663-14663

  • DOI: https://doi.org/10.1038/ncomms14663
  • Primary Citation of Related Structures:  
    5MPP, 5MQ3, 5MQ7

  • PubMed Abstract: 

    Proteins that self-assemble into regular shell-like polyhedra are useful, both in nature and in the laboratory, as molecular containers. Here we describe cryo-electron microscopy (EM) structures of two versatile encapsulation systems that exploit engineered electrostatic interactions for cargo loading. We show that increasing the number of negative charges on the lumenal surface of lumazine synthase, a protein that naturally assembles into a ∼1-MDa dodecahedron composed of 12 pentamers, induces stepwise expansion of the native protein shell, giving rise to thermostable ∼3-MDa and ∼6-MDa assemblies containing 180 and 360 subunits, respectively. Remarkably, these expanded particles assume unprecedented tetrahedrally and icosahedrally symmetric structures constructed entirely from pentameric units. Large keyhole-shaped pores in the shell, not present in the wild-type capsid, enable diffusion-limited encapsulation of complementarily charged guests. The structures of these supercharged assemblies demonstrate how programmed electrostatic effects can be effectively harnessed to tailor the architecture and properties of protein cages.


  • Organizational Affiliation

    Department of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, ETH Zürich, Zürich 8093, Switzerland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
6,7-dimethyl-8-ribityllumazine synthase
A [auth AA],
AA [auth BL],
AB [auth DH],
AC [auth FD],
AD [auth GO],
AE [auth IK],
AF [auth KG],
B [auth AB],
BA [auth BM],
BB [auth DI],
BC [auth FE],
BD [auth HA],
BE [auth IL],
BF [auth KH],
C [auth AC],
CA [auth BN],
CB [auth DJ],
CC [auth FF],
CD [auth HB],
CE [auth IM],
CF [auth KI],
D [auth AD],
DA [auth BO],
DB [auth DK],
DC [auth FG],
DD [auth HC],
DE [auth IN],
DF [auth KJ],
E [auth AE],
EA [auth CA],
EB [auth DL],
EC [auth FH],
ED [auth HD],
EE [auth IO],
EF [auth KK],
F [auth AF],
FA [auth CB],
FB [auth DM],
FC [auth FI],
FD [auth HE],
FE [auth JA],
FF [auth KL],
G [auth AG],
GA [auth CC],
GB [auth DN],
GC [auth FJ],
GD [auth HF],
GE [auth JB],
GF [auth KM],
H [auth AH],
HA [auth CD],
HB [auth DO],
HC [auth FK],
HD [auth HG],
HE [auth JC],
HF [auth KN],
I [auth AI],
IA [auth CE],
IB [auth EA],
IC [auth FL],
ID [auth HH],
IE [auth JD],
IF [auth KO],
J [auth AJ],
JA [auth CF],
JB [auth EB],
JC [auth FM],
JD [auth HI],
JE,
JF [auth LA],
K [auth AK],
KA [auth CG],
KB [auth EC],
KC [auth FN],
KD [auth HJ],
KE [auth JF],
KF [auth LB],
L [auth AL],
LA [auth CH],
LB [auth ED],
LC [auth FO],
LD [auth HK],
LE [auth JG],
LF [auth LC],
M [auth AM],
MA [auth CI],
MB [auth EE],
MC [auth GA],
MD [auth HL],
ME [auth JH],
MF [auth LD],
N [auth AN],
NA [auth CJ],
NB [auth EF],
NC [auth GB],
ND [auth HM],
NE [auth JI],
NF [auth LE],
O [auth AO],
OA [auth CK],
OB [auth EG],
OC [auth GC],
OD [auth HN],
OE [auth JJ],
OF [auth LF],
P [auth BA],
PA [auth CL],
PB [auth EH],
PC [auth GD],
PD [auth HO],
PE [auth JK],
PF [auth LG],
Q [auth BB],
QA [auth CM],
QB [auth EI],
QC [auth GE],
QD [auth IA],
QE [auth JL],
QF [auth LH],
R [auth BC],
RA [auth CN],
RB [auth EJ],
RC [auth GF],
RD [auth IB],
RE [auth JM],
RF [auth LI],
S [auth BD],
SA [auth CO],
SB [auth EK],
SC [auth GG],
SD [auth IC],
SE [auth JN],
SF [auth LJ],
T [auth BE],
TA [auth DA],
TB [auth EL],
TC [auth GH],
TD [auth ID],
TE [auth JO],
TF [auth LK],
U [auth BF],
UA [auth DB],
UB [auth EM],
UC [auth GI],
UD [auth IE],
UE [auth KA],
UF [auth LL],
V [auth BG],
VA [auth DC],
VB [auth EN],
VC [auth GJ],
VD [auth IF],
VE [auth KB],
VF [auth LM],
W [auth BH],
WA [auth DD],
WB [auth EO],
WC [auth GK],
WD [auth IG],
WE [auth KC],
WF [auth LN],
X [auth BI],
XA [auth DE],
XB [auth FA],
XC [auth GL],
XD [auth IH],
XE [auth KD],
XF [auth LO],
Y [auth BJ],
YA [auth DF],
YB [auth FB],
YC [auth GM],
YD [auth II],
YE [auth KE],
Z [auth BK],
ZA [auth DG],
ZB [auth FC],
ZC [auth GN],
ZD [auth IJ],
ZE [auth KF]
161Aquifex aeolicusMutation(s): 0 
Gene Names: ribHaq_132
EC: 2.5.1.78
UniProt
Find proteins for O66529 (Aquifex aeolicus (strain VF5))
Explore O66529 
Go to UniProtKB:  O66529
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO66529
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION1.4

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilERC-dG-2012-321295

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-22
    Type: Initial release
  • Version 1.1: 2024-05-15
    Changes: Data collection, Database references