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Table 2 Annotation of selected PEGs of putative orphan biosynthetic gene clusters

From: Antibacterial and anticancer activities of orphan biosynthetic gene clusters from Atlantis II Red Sea brine pool

Proposed functions of cluster elements

Scaffold

Start

Stop

PEG

RAST annotation

Best hit from PSI-BLAST

Query coverage %

E-value

Identity %

Accession number

(a) 14-7E selected PEGs annotation

Regulatory gene

Scaffold_C361

395

1345

28

Transcription initiation factor B

Transcription initiation factor IIB [candidate division MSBL1 archaeon SCGC-AAA259D14]

95

3e−138

65

gi|985656859|KXA89394.1

Biosynthesis of specialized metabolite/peptide modification

Scaffold_C371

2077

3141

54

Dolichol-phosphate mannosyltransferase (EC 2.4.1.83) homolog

Dolichol monophosphate mannose synthase [Chloroflexi bacterium CG08_land_8_20_14_0_20_45_12]

99

9e−109

47

gi|1277809164|PIU23225.1

Scaffold_C383

437

1396

73

Radical SAM domain protein

Radical SAM/SPASM domain-containing protein [Thermodesulfobium narugense]

83

2e−18

28

gi|503521935|WP_013756246.1

Scaffold_16

18334

17825

202

Geranylgeranyl diphosphate synthase (EC 2.5.1.29)

Hypothetical protein AKJ41_03425 [candidate division MSBL1 archaeon SCGC-AAA259O05]

100

8e−80

75

gi|985669946|KXB00917.1

Subtilases

Scaffold_16

11832

13133

200

Peptidase S8 and S53, subtilisin, kexin, sedolisin

Subtilase family protein [Micromonospora cremea]

37

1e−11

33

gi|1118770207|SIM81338.1

Scaffold_3

3824

3937

232

Hypothetical protein

Peptidase S8/S53 subtilisin kexin sedolisin [Halothermothrix orenii]

82

8e−14

35

gi|501769773|WP_012635463.1

Resistance to specialized metabolite

Scaffold_3

3169

3348

231

Hypothetical protein

ABC transporter permease [Desulfitobacterium sp. PCE1]

86

0.076*

32

gi|518688679|WP_019850372.1

Scaffold_2

9816

8962

218

NAD-dependent glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12)

Glyceraldehyde-3-phosphate dehydrogenase [candidate division MSBL1 archaeon SCGC-AAA261F17]

99

4e−166

83

gi|985671588|KXB02384.1

Scaffold_2

9970

9818

219

NAD-dependent glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12)

Glyceraldehyde-3-phosphate dehydrogenase [candidate division MSBL1 archaeon SCGC-AAA261F17]

92

2e−18

89

gi|985671588|KXB02384.1

(b) 10-2G selected PEGs annotation

 Synthesis of non-ribosomal peptide

Scaffold_7

29

160

20

Hypothetical protein

Non-ribosomal peptide synthetase [Mycobacterium minnesotense]

67

0.18*

45

gi|1178501113|WP_083022343.1

 Biosynthesis of specialized metabolite/peptide modification

Scaffold_7

3719

4762

29

Glycosyltransferase

Glycosyltransferase Family 4 protein [Enhydrobacter aerosaccus]

98

1e−30

28

gi|1194598116|WP_085933361.1

Scaffold_3

202

702

3

Hypothetical protein

Class I SAM-dependent methyltransferase [Methanosarcina mazei]

78

4e−12

34

gi|850504616|WP_048046626.1

Scaffold_3

2297

2989

6

Glycosyltransferase

Glycosyl transferase [Parcubacteria group bacterium CG11_big_fil_rev_8_21_14_0_20_39_14]

77

5e−35

38

gi|1277086632|PIQ92058.1

 Resistance to specialized metabolite

Scaffold_3

2961

3542

7

Hypothetical protein

ABC transporter permease [Hymenobacter sp. CRA2]

47

0.73*

27

gi|1150819492|WP_078012825.1

  1. Annotation of the putative biosynthetic gene cluster elements in: (a) 14-7E and (b) 10-2G. * PEGs with PSI-BLAST hits of E-value > 0.005. The proposed functions of the biosynthetic gene cluster elements are denoted, each function beside its relevant annotated gene. The scaffold number is denoted, as well as the start, stop and PEG number. RAST annotation for each gene is then denoted. Lastly, PSI-BLAST best hit for each gene is denoted, its query coverage, percentage identity and best hit accession number