This term is obsolete.
The T=2 symmetry is an non-official appellation; strictly speaking the capsid has a T=1 symmetry with each unit composed of a homodimer.

GO:0039616 JSON

T=2 icosahedral viral capsid

Cellular Component

Definition (GO:0039616 GONUTS page)

The protein coat that surrounds the infective nucleic acid in some virus particles where the subunits (capsomeres) are arranged to form an icosahedron with T=2 symmetry. The T=2 capsid is composed of 12 pentameric dimers.

Comments

The T=2 symmetry is an non-official appellation; strictly speaking the capsid has a T=1 symmetry with each unit composed of a homodimer.

3,745 annotations

Ancestor Chart

Ancestor chart for GO:0039616
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Ancestor chart

Taxon Constraints

The use of this term should conform to the following taxon constraints:

Ancestor GO ID Ancestor GO Term Name Relationship Taxon ID Taxon Reference(s)
GO:0039616 T=2 icosahedral viral capsid Never in Taxon 131567 cellular organisms

More information on taxon constraints in GO is available here

Cross-references

Database ID Description
UniProtKB-KW KW-1141 T=2 icosahedral capsid protein
VZ 838

Co-occurring Terms

These tables show the number of times the term listed in the table has been co-annotated.

No co-occurrence statistics for GO:0039616 based on ALL annotations
The top 21 of 21 co-occurring terms
Co-occurring Term PR S% #Together #Compared
T=2 icosahedral viral capsid
52,080.90 100.00 3,743 3,743
viral inner capsid
34,919.78 67.01 3,740 5,578
viral nucleocapsid
344.05 0.66 3,731 564,780
RNA binding
33.52 0.06 3,731 5,796,616
7-methylguanosine mRNA capping
1.27 0.00 3 122,977
chromatin extrusion motor activity
0.63 0.00 3 248,104
ATP-dependent H3-H4 histone complex chaperone activity
0.63 0.00 3 248,109
cohesin loader activity
0.63 0.00 3 248,310
chromatin looping
0.63 0.00 3 248,570
ATP-dependent H2AZ histone chaperone activity
0.63 0.00 3 249,443
Totals 15009 123687784
No co-occurrence statistics for GO:0039616 based on MANUAL annotations
The top 2 of 2 co-occurring terms
Co-occurring Term PR S% #Together #Compared
viral inner capsid
645,899.50 100.00 2 2
T=2 icosahedral viral capsid
645,899.50 100.00 2 2
Totals 4 4

Change Log

Timestamp Action Category Detail
2024-09-05 Added CONSTRAINT never_in_taxon NCBITaxon:131567 (cellular organisms)
2012-07-20 Added DEFINITION The protein coat that surrounds the infective nucleic acid in some virus particles where the subunits (capsomeres) are arranged to form an icosahedron with T=2 symmetry. The T=2 capsid is composed of 12 pentameric dimers.
2012-07-20 Added RELATION is a GO:0019030 (icosahedral viral capsid)
2012-07-20 Added XREF VZ:838
2012-07-20 Added TERM T=2 icosahedral viral capsid
Timestamp Action Category Detail
2012-07-20 Added TERM T=2 icosahedral viral capsid
Timestamp Action Category Detail
2012-07-20 Added DEFINITION The protein coat that surrounds the infective nucleic acid in some virus particles where the subunits (capsomeres) are arranged to form an icosahedron with T=2 symmetry. The T=2 capsid is composed of 12 pentameric dimers.
Timestamp Action Category Detail
2012-07-20 Added RELATION is a GO:0019030 (icosahedral viral capsid)
Timestamp Action Category Detail
2012-07-20 Added XREF VZ:838
Timestamp Action Category Detail
2024-09-05 Added CONSTRAINT never_in_taxon NCBITaxon:131567 (cellular organisms)
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