Table 1 Key to sequence identifiers

Actinobacillus actinomycetemcomitans

Aac

N/A

Aeropyrum pernix

Ape-1

7674393

Aeropyrum pernix

Ape-2

7674395

Anabaena sp.

Asp-1

N/A

Anabaena sp.

Asp-2

N/A

Aquifex aeolicus

Aae-1

6226273

Aquifex aeolicus

Aae-2

7674374

Arabidopsis thaliana

Ath-1

136251

Arabidopsis thaliana

Ath-2

1174779

Arabidopsis thaliana

Ath-3

10176821

Archaeoglobus fulgidus

Afu-1

3334387

Archaeoglobus fulgidus

Afu-2

7674372

Bacillus halodurans

Bha

10174280

Bacillus stearothermophilus

Bst

226585

Bacillus subtilis

Bsu

136270

Bordetella pertussis

Bpe

N/A

Buchnera sp. APS

Bsp

11182450

Campylobacter jejuni

Cje

11269304

Caulobacter crescentus

Ccr

136272

Chlamydia trachomatis

Ctr

6226274

Chlamydia psittaci

Cps-1

N/A

Chlamydia psittaci

Cps-2

N/A

Chlorobium tepidum

Cte-1

N/A

Chlorobium tepidum

Cte-2

N/A

Clostridium acetobutylicum

Cac

N/A

Corynebacterium diphtheriae

Cdip-1

N/A

Corynebacterium diphtheriae

Cdip-2

N/A

Dehalococcoides ethenogenes

Det

N/A

Deinococcus radiodurans

Dra

7474051

Escherichia coli

Eco

136273

Ferroplasma acidarmanus

Fac

N/A

Geobacter sulfurreducens

Gsu-1

N/A

Geobacter sulfurreducens

Gsu-2

N/A

Haemophilus influenzae

Hin

1174785

Halobacterium sp.

Hal

14423973

Helicobacter pylori

Hpy

7674399

Klebsiella pneumoniae

Kpn

N/A

Lactococcus lactis

Lla

267168

Legionella pneumophila

Lpn

N/A

Mesorhizobium loti

Mlo

13474230

Methanobacterium thermoautotrophicum

Mth-1

3334383

Methanobacterium thermoautotrophicum

Mth-2

7674371

Methanococcus jannaschii

Mja

2501412

Methanosarcina barkeri

Mba-1

N/A

Methanosarcina barkeri

Mba-2

N/A

Methanosarcina barkeri

Mba-3

N/A

Mycobacterium bovis

Mbo

N/A

Mycobacterium leprae

Mle

13093205

Mycobacterium smegmatis

Msm-1

N/A

Mycobacterium smegmatis

Msm-2

N/A

Mycobacterium tuberculosis

Mtu

3024761

Neisseria gonorrhoeae

Ngo

N/A

Neisseria meningitides

Nme

11269306

Nitrosomonas europaea

Neu

N/A

Nostoc punctiforme

Npu-1

N/A

Nostoc punctiforme

Npu-2

N/A

Pasteurella multocida

Pmu

13432266

Prochlorococcus marinus

Pma

N/A

Pseudomonas aeruginosa

Paeru

12230946

Pyrobaculum aerophilum

Paero-1

N/A

Pyrobaculum aerophilum

Paero-2

N/A

Pyrococcus abyssi

Pab-1

14520675

Pyrococcus abyssi

Pab-2

14423981

Pyrococcus furiosus

Pfu-1

N/A

Pyrococcus furiosus

Pfu-2

N/A

Pyrococcus horikoshii

Pho

14591361

Rhodobacter capsulatus

Rca-1

N/A

Rhodobacter capsulatus

Rca-2

N/A

Rhodopseudomonas palustris

Rpa-1

N/A

Rhodopseudomonas palustris

Rpa-2

N/A

Salmonella typhimurium

Sty

136281

Staphylococcus aureus

Sau

13701169

Streptococcus mutans

Smu

N/A

Streptococcus pneumoniae

Spn

N/A

Streptomyces coelicolor

Sco

6226276

Sulfolobus solfataricus

Sso-1

14424473

Sulfolobus solfataricus

Sso-2

13814334

Synechococcus sp.

Syn

N/A

Synechocystis sp.

Ssp

2501413

Thermomonospora fusca

Tfu

N/A

Thermoplasma acidophilum

Tac

13878841

Thermoplasma volcanium

Tvo

13541762

Thermotoga maritima

Tma-1

1717761

Thermotoga maritima

Tma-2

7674388

Vibrio cholerae

Vch

11269279

Xylella fastidiosa

Xfa

11269281

Yersinia pestis

Ype

N/A

Yersinia pseudotuberculosis

Yps

N/A

Zea mays

Zma-1

1174780

Zea mays

Zma-2

1174778