Table 2. Tentative assignment of putative biomarkers from MALDI-TOF MS signals of haloarchaea type strains and methanoarchaea with genome data.
| Species | UniProt Accession ID | Predicted Mass (Da) | Observed Mass (Da)/Intensity (%) | Error (%) | Protein Description | Peptide sequences |
|---|---|---|---|---|---|---|
| Haloarcula argentinensis ATCC 700875T | M0KI28 | 6143.86 | 6148.52/100 | 0.07 | Uncharacterized protein | MVHCPDCETSLETADDIDFVEVDAVTGFIKASKRFYTANCAACGVTIGSGVA GAKSNGGAA |
| Haloarcula hispanica ATCC 33960T | G0HR47 | 6151.92 | 6148.08/100 | 0.06 | Uncharacterized protein | MVHCPDCQTSLETADDIEFVEVDAKTGLIKASKRFYTANCAACGVTIGSGVA GAKSNGGAA |
| Haloarcula japonica ATCC 49778T | EMA34946a | 6144.84 | 6148.70/84 | 0.06 | hypothetical protein C444_00145 | MVHCPDCQTSLETADDIDFVEVDATTGFIKASKRFYTANCAACGVTIGSGVA GAKSNGGAA |
| Haloarcula marismortui ATCC 43049T | Q5V7R0 | 6152.00 | 6147.87/100 | 0.07 | Uncharacterized protein | MPEFRVRKPDGWTTVSFPDEVATISVVGGKVDGQLCLTFTGEREGGTSVVLD RLLPS |
| YP_137385a | 6159.86 | 6164.05/71 | 0.07 | hypothetical protein rrnAC2944 | MVHCPDCETSLETADDIEFVEVDATTGFIKASKRFYTANCAACGVTIGSGVAG AKSNGGAA | |
| Haloarcula vallismortis ATCC 29715T | M0JP93 | 6148.31 | 6148.62/100 | 0.01 | Uncharacterized protein | MVARLYSATLFALYQLTLLLGIMLLPVAMVTEQFGLRLPMDRAVSGLNEAYD QASA |
| M0JI28 | 6187.91 | 6165.92/47 | 0.36 | Uncharacterized protein | MVHCPDCETSLETADDIEFVEVDAVTGFIKASKRFYTANCATCGVTIGSGVAG AKSNGGAA | |
| Natrinema pellirubrum JCM 10476T | L0JI54 | 6025.64 | 6030.57/100 | 0,08 | Uncharacterized protein | MTPEATPVGREADRASDVVGAVDEIDGRPHLVVADIARDDAWIAMAESAAV AVEDHR |
| Haloterrigena turkmenica DSM 5511T | D2RXY3 | 6034.80 | 6045.45/100 | 0.17 | Uncharacterized protein | MSTTSPVFCYVCNEEMVLDETLEHHLVYEHKPRELAKQLVAEWEAEELGEAV |
| YP_ 003403049a | 6127.76 | 6070.09/24 | 0.93 | hypothetical protein Htur_1490 | MTLEAESVGSVSVTDGDVVAAIDEIGGQPHLVIADIGRDDVWLSMTERDAVS LDEWR | |
| Haloterrigena thermotolerans DSM 11552T | M0BND2 | 6039.66 | 6031.49/100 | 0.14 | Uncharacterized protein | MTPEATPVGREADRASDVVAAVDEIDGRPHLVVADIARDDAWIAMAESAAV AVEDHR |
| Methanosarcina mazei FA9604c | Q8PYQ4b | 10679.59 | 10684.8/34 | 0.04 | 50S ribosomal protein L31e | MVGKMADDMVKEQIYTIPLREVRKVPAWKRAGRAVKEVRGFLVRH MKTEAEQVKLDKTINECLWEKGCEKPPLSIRVRAVKFADGEVQAELAQ |
| Methanococcus voltaei P2F9701a | D7DR73c | 9764.07 | 9751.67/43 | 0.13 | 50S ribosomal protein L12 | MEYIYAALLLNSADKEITEDAVKAVLTAAGIEADDARVKALVAALEGVDIAE AIAKAAAAPVAVAAAAPAAEAPAEEKKEEKKEDTGAAAAAGLGALFG |
| D7DV66c | 9740.40 | 9751.67/43 | 0.12 | 50S ribosomal protein L31e | MENERIYTIPLRDVTNKVPTTKRAPRAIKKIREYLQKHMKSDNVKLDNSIN EKVWERSLNKIPARVRVKAVKQDDVVIATLVE | |
| Methanohalophilus mahii DSM 5219T | D5E990 | 11436.11 | 11433.53/20 | 0.02 | UPF0235 protein Mmah_0207 | MPIRDAIHTKGNGCIIDFEINPGSSKLVVPSGYNIWRKRVEGKLTESAQKGK ANDQLIQRLSHIFQINSSSITIVAGAKTTKKSVHLENVYPKTAEDVLEQYL |
aProtein accession number from NCBI protein database.
bThe protein was described from Methanosarcina mazei Gö1T.
cThe protein was described from Methanococcus voltaei A3T.