Inteins tree
This tree was made from the inteins protein splicing domain blocks
(N1, N2, N3, N4, C2 and C1). Colored sequences are intein allele
groups each integrated in the same homolgous site at different protein
hosts
(VMA-a, dnaB-a, gyrA-a, RIR1-b, pol-a, pol-b, pol-c, IF2-a, klbA-a, hyp2-a, RFC-a, r-gyr-a, recA-b)
Bold lines mark branching orders that are highly unlikely by chance
(bootstrap values greater than 900/1000), continuous lines mark branching
orders that are unlikely by chance (> 750/1000).
Relations between sequences outside these clusters are marked by dashed lines
and are uncertain. While these branching order are not necessarily wrong they
should not be relied upon.
The bootstrapped tree (1000 trials) was calculated by the clustalW program
from 75 positions in the block alignments. Sequences where the block N4
could not be identified and block C1 in the HO protein were denoted by gaps.
You can view this tree in more detail in its
square branches (phenogram) form,
including all the bootstraps values.
[Inteins home page]
Page last modified June 1998
Shmuel Pietrokovski <pietro@weizmann.ac.il>