Table 4 Open in new tab Conserved...

Phylum

Species

Intron 1 (frame = 1)

Intron 2 (frame = 0)

Intron 3 (frame = 2)

Arthropoda

Nasutitermes takasagoensis

Termite

Y F D A G D

G V Q V L L

H R S S S C

TAC TTT GAC G/CT GGT GAT

GGT GTA CAG/GTT CTA CTG

CAT AGA TCT AG/T TCG TGC

Arthropoda

Cherax quadricarinatus

Crayfish

W Y - - - -

A C - L - -

- - - A - -

TAC TAC GAT G/CT GGT GAT

GGA GTA CAG/GCA CTC CTC

CAC CGT TCC AG/C TCG TGC

Mollusca

Haliotis discus

Abalone

W Y - - - -

- - - Q M

TGG TAT GAT G/CT GGT GAC

GCT TGC CAG/CTG CTC CTG

CAC AGA TCC GC/C TCC TGC

Echinodermata

Strongylocentrotus purpuratus

Sea urchin

Y Y - - - -

- - - A - -

TGG TAT GAT G/CT GGA GAC

GGT GTA CAG/CAG ATG TTA

Chordata

Ciona intestinalis

Sea squirt

W Y - - - -

- - - - M

- - A - - -

TGG TAC GAC G/CT GGA GAC

GGA GTT CAG/GTC CTC ATG

CAC AGA GCC AG/T TCT TGC

Tracheophytes

Arabidopsis thaliana

Thale cress

- A - L - -

GGG GCT CAG/TTG CTG TTA

Tracheophytes

Oryza sativa

Rice

- A - - - -

GGT GCA CAG/GTT CTT TTG

Table 4

Open in new tab

Conserved Introns in Four Metazoan Phyla, One of Which Is Also Shared with Arabidopsis thaliana and Oryza sativa

Phylum	Species		Intron 1 (frame = 1)	Intron 2 (frame = 0)	Intron 3 (frame = 2)
Arthropoda	Nasutitermes takasagoensis	Termite	Y F D A G D	G V Q V L L	H R S S S C
			TAC TTT GAC G/CT GGT GAT	GGT GTA CAG/GTT CTA CTG	CAT AGA TCT AG/T TCG TGC
Arthropoda	Cherax quadricarinatus	Crayfish	W Y - - - -	A C - L - -	- - - A - -
			TAC TAC GAT G/CT GGT GAT	GGA GTA CAG/GCA CTC CTC	CAC CGT TCC AG/C TCG TGC
Mollusca	Haliotis discus	Abalone	W Y - - - -	- - - Q M
			TGG TAT GAT G/CT GGT GAC	GCT TGC CAG/CTG CTC CTG	CAC AGA TCC GC/C TCC TGC
Echinodermata	Strongylocentrotus purpuratus	Sea urchin	Y Y - - - -	- - - A - -
			TGG TAT GAT G/CT GGA GAC	GGT GTA CAG/CAG ATG TTA
Chordata	Ciona intestinalis	Sea squirt	W Y - - - -	- - - - M	- - A - - -
			TGG TAC GAC G/CT GGA GAC	GGA GTT CAG/GTC CTC ATG	CAC AGA GCC AG/T TCT TGC
Tracheophytes	Arabidopsis thaliana	Thale cress		- A - L - -
				GGG GCT CAG/TTG CTG TTA
Tracheophytes	Oryza sativa	Rice		- A - - - -
				GGT GCA CAG/GTT CTT TTG

Phylum	Species		Intron 1 (frame = 1)	Intron 2 (frame = 0)	Intron 3 (frame = 2)
Arthropoda	Nasutitermes takasagoensis	Termite	Y F D A G D	G V Q V L L	H R S S S C
			TAC TTT GAC G/CT GGT GAT	GGT GTA CAG/GTT CTA CTG	CAT AGA TCT AG/T TCG TGC
Arthropoda	Cherax quadricarinatus	Crayfish	W Y - - - -	A C - L - -	- - - A - -
			TAC TAC GAT G/CT GGT GAT	GGA GTA CAG/GCA CTC CTC	CAC CGT TCC AG/C TCG TGC
Mollusca	Haliotis discus	Abalone	W Y - - - -	- - - Q M
			TGG TAT GAT G/CT GGT GAC	GCT TGC CAG/CTG CTC CTG	CAC AGA TCC GC/C TCC TGC
Echinodermata	Strongylocentrotus purpuratus	Sea urchin	Y Y - - - -	- - - A - -
			TGG TAT GAT G/CT GGA GAC	GGT GTA CAG/CAG ATG TTA
Chordata	Ciona intestinalis	Sea squirt	W Y - - - -	- - - - M	- - A - - -
			TGG TAC GAC G/CT GGA GAC	GGA GTT CAG/GTC CTC ATG	CAC AGA GCC AG/T TCT TGC
Tracheophytes	Arabidopsis thaliana	Thale cress		- A - L - -
				GGG GCT CAG/TTG CTG TTA
Tracheophytes	Oryza sativa	Rice		- A - - - -
				GGT GCA CAG/GTT CTT TTG

NOTE.—The intron position is shown by “/”. The amino acid sequences surrounding introns 1 and 3 correspond to the conserved regions I and II in table 3. Amino acids are only shown when they differ from the corresponding amino acid in Nasutitermes takasagoensis. There are presently insufficient assembled contigs to determine whether intron 3 is also conserved in the sea urchin. The genomic sequences used are ci0100130070 (sea squirt; see http://genome.jgi-psf.org/ciona4), AB019146 (termite), AB125892 (abalone), AY176645 (crayfish), contigs 310112/contig617229 (sea urchin; see http://www.hgsc.bcm.tmc.edu/projects/seaurchin/), CAB45061/NP_194157 (A. thaliana), and AC137547 (O. sativa).

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