Groups Direct Repeat No. Direct Repeat Sequence
Methanogens >6M.mazei
>17M.acetivorans
GTTTCAATCCTTGTTTTAATGGAT-------------
GTTTCAATCCTTGTTTTAATGGATCTTGCTCTCGAAT
 >48M.aeolicus
>58M.igneus
GTCTAAAAGACACATCCATTAAAACAAGGATGGAAAC
-------------ATCCATTAAAACAAGGATGGAAAC
 >74M.jannaschii
>94M.fervens
-ATTTCCATTCCGAAACGGTCTGATTTTAAC
AATTTCCATTCCGAAACGGTCTGATTTTAAC
>85M.jannaschii
>100M.FS406-22
>112M.FS406-22plasmidpFS01G
-TTTCCATCCTCCAAGAGGTCTGATTTTAAC--
GTTTCCATCCTCCAAGAGGTCTGATTTTAACA-
-TTTCCATCCTCCAAGAGGTCTGATTTTAAC--
>114M.thermautotrophicus
>115M.marburgensis
GTTAAAATCAGACCAAAATGGGATTGAAAT
GTTAAAATCAGACCAAAATGGGATTGAAAT
Thermococci >293P.abyssi
>310P.furiosusCOM1
>336P.NA2
>315P.horikoshii
CTTTCAATTCTATTTTAGTCTTATTGGAAC
CTTTCAATTCTATTTTAGTCTTATTGGAAC
CTTTCAATTCTATTTTAGTCTTATTGGAAC
CTTTCAATTCTATTTTAGTCTTATTGGAAC
>295P.abyssi
>296P.furiosus3638
GTTCCAATAAGACTAAAATAGAATTGAAAG
GTTCCAATAAGACTAAAATAGAATTGAAAG
>328T.onnurineus
>333T.kodakarensis
GTTTCAATTCTCTTAGAGTCTTATTGCAAC
GTTTCAATTCTCTTAGAGTCTTATTGCAAC
>331T.gammatolerans
>344T.4557
GTTGCAATAAGACTCTAGGAGAATTGAAAG
GTTGCAATAAGACTCTAGGAGAATTGAAAG
>342T.4557
>353T.CL1
CTTTCCACACAATTCTGTCCTACGGAAAC
CTTTCCACACAATTCTGTCCTACGGAAAC
Halophiles >391N.pharaonis
>393N.pharaonisplasmidPL23
GTCGAGACGGACTGAAAACCCAGAACGGGATTGAAAC
GTCGAGACGGACTGAAAACCCAGAACGGGATTGAAAC
Crenarchaeota >171P.aerophilum
>279P.1860
GTTTCAACTATCTTTTGATTTCTGG
GTTTCAACTATCTTTTGATTTCTGG
>172P.aerophilum
>278P.1860
>187P.oguniense
CCAGAAATCAAAAGATAGTTGAAAC
CCAGAAATCAAAAGATAGTTGAAAC
CCAGAAATCAAAAGATAGTTGAAAC
>189P.oguniense
>235T.tenax
>177P.arsenaticum
CTTTCAATCCTCTTTTTGAGATTC
CTTTCAATCCTCTTTTTGAGATTC
CTTTCAATCCTCTTTTTGAGATTC
>178P.arsenaticum
>188P.oguniense
--CAAAATCAAAAGATAGTTGAAAC
GTCAAAATCAAAAGATAGTTGAAAC
>183P.islandicum
>226 P.neutrophilum
>185P.islandicum
GTTTCTACTATCTTTTGATTTCTGG
GTTTCTACTATCTTTTGATTTCTGG
GTTTCTACTATCTTTTGATTTCTG
>184P.islandicum
>225P.neutrophilum
CCAGAAATCAAAAGATAGTAGAAAC
CCAGAAATCAAAAGATAGTAGAAAC
>210S.solfataricus98/2
>248A.hospitalis
>258S.M.14.25
GATAATCTACTATAGAATTGAAAG
GATAATCTACTATAGAATTGAAAG
GATAATCTACTATAGAATTGAAAG
Table 2: Alignment of direct repeats displaying 100% similarity.