Data Item _em_virus_shell.triangulation

General

Item name
_em_virus_shell.triangulation
Category name
em_virus_shell
Attribute name
triangulation
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.1 % of entries

Item Description

The triangulation number, T, describes the organization of subunits within an icosahedron. T is defined as T= h2 + h*k + k2, where h and k are positive integers that define the position of the five-fold vertex on the original hexagonal net.

Item Example

 27

Data Type

Data type code
positive_int
Data type detail
Positive integers (1,2,3,..)
Primitive data type code
numb
Regular expression
[1-9][0-9]*