5VKU

An atomic structure of the human cytomegalovirus (HCMV) capsid with its securing layer of pp150 tegument protein

  • Classification: VIRUS
  • Organism(s): Human cytomegalovirus (strain AD169)

  • Deposited: 2017-04-24 Released: 2017-06-28 
  • Deposition Author(s): Yu, X., Jih, J., Jiang, J., Zhou, H.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences; National Institutes of Health/National Institute of Dental and Craniofacial Research; National Institutes of Health/National Institute Of Allergy and Infectious Diseases; National Institutes of Health/National Center for Research Resources; National Science Foundation (United States) 

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.9 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Atomic structure of the human cytomegalovirus capsid with its securing tegument layer of pp150.

Yu, X.Jih, J.Jiang, J.Zhou, Z.H.

(2017) Science 356: --

  • DOI: 10.1126/science.aam6892

  • PubMed Abstract: 
  • Herpesviruses possess a genome-pressurized capsid. The 235-kilobase genome of human cytomegalovirus (HCMV) is by far the largest of any herpesvirus, yet it has been unclear how its capsid, which is similar in size to those of other herpesviruses, is ...

    Herpesviruses possess a genome-pressurized capsid. The 235-kilobase genome of human cytomegalovirus (HCMV) is by far the largest of any herpesvirus, yet it has been unclear how its capsid, which is similar in size to those of other herpesviruses, is stabilized. Here we report a HCMV atomic structure consisting of the herpesvirus-conserved capsid proteins MCP, Tri1, Tri2, and SCP and the HCMV-specific tegument protein pp150-totaling ~4000 molecules and 62 different conformers. MCPs manifest as a complex of insertions around a bacteriophage HK97 gp5-like domain, which gives rise to three classes of capsid floor-defining interactions; triplexes, composed of two "embracing" Tri2 conformers and a "third-wheeling" Tri1, fasten the capsid floor. HCMV-specific strategies include using hexon channels to accommodate the genome and pp150 helix bundles to secure the capsid via cysteine tetrad-to-SCP interactions. Our structure should inform rational design of countermeasures against HCMV, other herpesviruses, and even HIV/AIDS.


    Organizational Affiliation

    Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095-7364, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tegument protein pp150
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, v, w, x, y, z
285Human cytomegalovirus (strain AD169)Mutation(s): 0 
Gene Names: UL32
Find proteins for P08318 (Human cytomegalovirus (strain AD169))
Go to UniProtKB:  P08318
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Major capsid protein
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P
1370Human cytomegalovirus (strain AD169)Mutation(s): 0 
Gene Names: MCP (UL86)
Find proteins for P16729 (Human cytomegalovirus (strain AD169))
Go to UniProtKB:  P16729
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Small capsomere-interacting protein
Q, R, S, T, U, V, W, X, Y, Z, a, b, c, d, e, f
75Human cytomegalovirus (strain AD169)Mutation(s): 0 
Gene Names: SCP
Find proteins for Q7M6N6 (Human cytomegalovirus (strain AD169))
Go to UniProtKB:  Q7M6N6
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Triplex capsid protein 1
g, j, m, p, s
290Human cytomegalovirus (strain AD169)Mutation(s): 0 
Gene Names: TRX1
Find proteins for P16783 (Human cytomegalovirus (strain AD169))
Go to UniProtKB:  P16783
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Triplex capsid protein 2
h, i, k, l, n, o, q, r, t, u
306Human cytomegalovirus (strain AD169)Mutation(s): 0 
Gene Names: TRX2
Find proteins for P16728 (Human cytomegalovirus (strain AD169))
Go to UniProtKB:  P16728
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.9 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM071940
National Institutes of Health/National Institute of Dental and Craniofacial ResearchUnited StatesDE025567
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesAI094386
National Institutes of Health/National Center for Research ResourcesUnited States1S10RR23057
National Institutes of Health/National Institute of General Medical SciencesUnited States1U24GM116792
National Science Foundation (United States)United StatesDBI-1338135

Revision History 

  • Version 1.0: 2017-06-28
    Type: Initial release
  • Version 1.1: 2017-07-12
    Type: Database references
  • Version 1.2: 2017-09-13
    Type: Author supporting evidence, Data collection