Table 8 |
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Examples of differential genome display of Pyrococcus abyssi and Pyrococcus horikoshii using the COG approach |
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Gene/COG Number |
Phylogenetic pattern* |
Function |
Comment |
|
|
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Present in P.abyssi but not P. horikoshii |
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PAB2044/0547 |
amt-szyqvdcebrhuj- - - - - -n- |
Anthranilate phosphoribosyltransferase |
The entire branched pathway for aromatic amino acid biosynthesis appears to be present in P. abyssi but not in P. horikoshii |
|
PAB2045/0147 |
amt-szyqvdcebrhuj- - - - - -n- |
Anthranilate synthase component I |
|
|
PAB2046/0512 |
amt-szyqvdcebrhuj- - - - - -n- |
Anthranilate synthase component II |
|
|
PAB0307/0082 |
- - - -szyqvdceb-huj- - - - -inx |
DAHP synthase |
|
|
PAB2049/0159 |
amt-szyqvdcebrhuj- - - - -in- |
Tryptophan synthase a subunit |
|
|
PAB2048/0133 |
amt-szyqvdcebrhuj- - - - -in- |
Tryptophan synthase ß subunit |
|
|
PAB0250/0031 |
- - - -szyqvdcebrhuj- - - - - -n- |
Cysteine synthase |
P. abyssi appears to be the only euryarchaeon that encodes the typical cysteine biosynthesis pathway which it shares with A. pernix |
|
PAB1595/2046 |
a- - -szyq-dc-b- - -j- - - - - - - - |
ATP sulfurylase |
|
|
PAB0781/0529 |
a- - -szyq-dcebr- -j- - - - - -n- |
Adenylylsulfate kinase |
|
|
PAB1839/0035 |
- -t-szyqvdcebrh-jwgp-l-n- |
Uracil phosphoribosyltransferase |
|
|
PAB2246/0827 |
-m- -s- - - - - - -brhu-w-p- - - - - |
Adenine-specific DNA methyltransferases |
|
|
PAB2154/0610 |
amt-s- - - - - -e- -hujw-p- - -n- |
Restriction enzymes type I helicase subunit |
|
|
Present in P. horikoshii but not P. abyssi |
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|
PH0369/0153 |
- - -k- -y-v- -ebrh- - - - - -I--- |
Galactokinase |
|
|
PH1048, PH1046/2309 |
- - -k-z-q-d- -b- - - - - - -o- - - - |
Leucyl aminopeptidase (aminopeptidase T) |
|
|
PH0365/1085 |
a- -k- -y-v- -e-rh- - - - - - - - - - |
Galactose-1-phosphate uridylyltransferase |
|
|
PH0896/1230 |
- - -k- -yqvd-eb- - -j- - - - - -n- |
Co/Zn/Cd efflux system component |
|
|
PH0162/1353 |
amtk- - -qv- - - -r- - - - - - - - - - - |
Predicted hydrolase of the HD superfamily |
|
|
PH1032/0338 |
-m-k- - - - - -ce- -hu- - - - -I- - - |
Site-specific DNA methylase dam |
|
|
PH0873/1401 |
- -tk- - -q-dceb-uj- - - - - - - - |
GTPase subunit (McrB) of a restriction endonuclease |
|
|
|
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*The designations are as in Table 6. |
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Natale et al. Genome Biology 2000 1:research0009.1 doi:10.1186/gb-2000-1-5-research0009 |
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