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Table 5 Core proteins of methanogenesis

From: Comparative genomics highlights the unique biology of Methanomassiliicoccales, a Thermoplasmatales-related seventh order of methanogenic archaea that encodes pyrrolysine

Annotation

"Ca.M. alvus"

"Ca.M. intestinalis"

M. luminyensis

Distribution

arCOG

Nitrogenase molybdenum-iron like protein (NifD-like/NflD)

AGI86050

AGN27015

WP_019176684.1

1

arCOG04888

UDP-N-acetylmuramyl pentapeptide synthase like protein (MurF-like)

AGI86051

AGN27016

WP_019176685.1

1

arCOG02822

Methyl-coenzyme M reductase operon associated like protein (McrC-like)

AGI85157

AGN26013

WP_019176790.1

1

arCOG03226

Conserved hypothetical protein

AGI85156

AGN26012

WP_019176789.1

1

arCOG04904

CoA-substrate-specific enzyme activase

AGI85155

AGN26011

WP_019176788.1

1

arCOG02679

Conserved hypothetical protein

AGI85154

AGN26010

WP_019176787.1

1

arCOG04903

Conserved hypothetical protein

AGI85153

AGN26009

WP_019176786.1

1

arCOG04901

Peptidyl-prolyl cis-trans isomerase related protein

AGI85152

AGN26008

WP_019176785.1

1

arCOG04900

Methyl coenzyme M reductase operon associated protein (McrC)

AGI85151

AGN26006

WP_019176783.1

1

arCOG03225

Methyl-coenzyme M reductase, component A2 (AtwA)

AGI85150

AGN26005

WP_019176782.1

1*†

arCOG00185

Methyl coenzyme M reductase, beta subunit (McrB/MrtB)

AGI85141

AGN26874

WP_019176771.1

1*

arCOG04860

Methyl coenzyme M reductase, protein D (McrD/MrtD)

AGI85142

AGN26873

WP_019176772.1

1*

arCOG04859

Methyl coenzyme M reductase, gamma subunit (McrG/MrtG)

AGI85143

AGN26872

WP_019176773.1

1*

arCOG04858

Methyl coenzyme M reductase, alpha subunit (McrA/MrtA)

AGI85144

AGN26871

WP_019176774.1

1*

arCOG04857

SH3 fold protein

AGI85145

AGN26870

WP_019176775.1

1

arCOG04846

Conserved hypothetical protein

AGI85146

AGN26876

WP_019176769.1

2*†

arCOG02882

AIR synthase-like protein

AGI85549

AGN26462

WP_019176932.1

2

arCOG00640

Predicted DNA-binding protein containing a Zn-ribbon domain

AGI84948

AGN25597

WP_019176187.1

2*

arCOG01116

Methyltransferase related protein (MtxX)

AGI85117

AGN26654

WP_019177314.1

3

arCOG00854

Conserved hypothetical protein

AGI84870

AGN25885

WP_019178690.1

3*

arCOG04893

Fe-S oxidoreductase, related to NifB/MoaA family

-

-

-

4*

arCOG00950

Conserved hypothetical protein

-

-

-

4

arCOG04866

N5-methyltetrahydromethanopterin: coenzyme M methyltransferase, subunit A (MtrA)

-

-

-

4*

arCOG03221

N5-methyltetrahydromethanopterin: coenzyme M methyltransferase, subunit B (MtrB)

-

-

-

4

arCOG04867

N5-methyltetrahydromethanopterin: coenzyme M methyltransferase, subunit C (MtrC)

-

-

-

4

arCOG04868

N5-methyltetrahydromethanopterin: coenzyme M methyltransferase, subunit D (MtrD)

-

-

-

4

arCOG04869

N5-methyltetrahydromethanopterin: coenzyme M methyltransferase, subunit E (MtrE)

-

-

-

4

arCOG04870

Soluble P-type ATPase

-

-

-

5

arCOG01579

Uncharacterized conserved protein

-

-

-

5*

arCOG04844

Conserved hypothetical protein (putative kinase)

-

-

-

6

arCOG04885

  1. Protein accession numbers with the same font (bold, italics or bold-italics) are encoded by genes situated close to each other in their respective genomes.
  2. *Paralogues.
  3. †Related to a bacterial cluster with same conserved domain.
  4. 1, Methanogenesis marker, present in and unique to all sequenced methanogens and not in other archaea.
  5. 2, Present in all sequenced methanogens and less than 5% of other sequenced archaea.
  6. 3, Present in more than 90% of sequenced methanogens including Methanomassiliicoccales and less than 5% of other sequenced archaea.
  7. 4, Absent from the Methanomassiliicoccales but present and unique to all other methanogens.
  8. 5, Absent from the Methanomassiliicoccales but present in more than 90% other methanogens and not in other archaea.
  9. 6, Absent from the Methanomassiliicoccales but present in more than 90% of sequenced methanogens and less than 5% of other sequenced archaea.
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BMC Genomics

ISSN: 1471-2164

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