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Table 3 Methanogen-specific COGs ID and their descriptions

From: A pursuit of lineage-specific and niche-specific proteome features in the world of archaea

COG ID

Description

Domains found on TIGR

Domains found on Pfam

COG4058

Methyl coenzyme M reductase, alpha subunit

met-coenzyme M reductase

met-coenzyme M reductase

COG4054

Methyl coenzyme M reductase, beta subunit

COG4056

Methyl coenzyme M reductase, subunit C

COG4055

Methyl coenzyme M reductase, subunit D

COG2710

Nitrogenase molybdenum-iron protein, alpha and beta chains

methanogenesis marker protein 13

oxidored-nitr

COG1348

Nitrogenase subunit NifH (ATPase)

NifH

Fer4-NifH

COG4008

Predicted metal-binding transcription factor

methanogenesis marker protein 9

Not found

COG4070

Predicted peptidyl-prolyl cis-trans isomerase (rotamase), cyclophilin family

methanogenesis marker protein 3

COG4002

Predicted phosphotransacetylase

methanogenesis marker protein 4

COG4032

Predicted thiamine-pyrophosphate-binding protein

sulfopyruvate decarboxylase

TPP enzyme

COG2144

Selenophosphate synthetase-related proteins

methanogenesis marker protein 2

AIRS

COG4063

Tetrahydromethanopterin S-methyltransferase, subunit A

Methyl transferase (Mtr)

Methyl transferase (Mtr)

COG4062

Tetrahydromethanopterin S-methyltransferase, subunit B

COG4061

Tetrahydromethanopterin S-methyltransferase, subunit C

COG4060

Tetrahydromethanopterin S-methyltransferase, subunit D

COG4059

Tetrahydromethanopterin S-methyltransferase, subunit E

COG4050

Uncharacterized protein conserved in archaea

methanogenesis marker protein 5

Domain of unknown function (DUF)

COG4051

Uncharacterized protein conserved in archaea

methanogenesis marker protein 17

COG4065

Uncharacterized protein conserved in archaea

methanogenesis marker protein 14

COG4014

Uncharacterized protein conserved in archaea

***

COG4029

Uncharacterized protein conserved in archaea

methanogenesis marker protein 6

COG4052

Uncharacterized protein related to methyl coenzyme M reductase subunit C

methanogenesis marker protein 7