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Table 4 Putative nitrogen fixation gene cluster in D. aromatica

From: Metabolic analysis of the soil microbe Dechloromonas aromatica str. RCB: indications of a surprisingly complex life-style and cryptic anaerobic pathways for aromatic degradation

VIMSS id

Ortholog

Size, aas

583652

FldA, flavodoxin typical for nitrogen fixation

186

583653

hypothetical protein

86

583654

NafY-1, nitrogenase accessory factor Y

247

583655

NifB, nitrogenase cofactor biosynthesis protein

500

583656

4Fe-4S ferredoxin

92

583657

nitrogenase-associated protein

159

583658

flavodoxin

423

583659

ferredoxin, nitric oxide synthase

95

583660

2Fe-2S ferredoxin

120

583661

NifQ

190

583662

DraG

326

583663

histidine kinase

1131

583664

Che-Y like receiver

308

583666

UrtA urea transport

420

583667/3337562

CynS cyanate lyase

147

583668

S-box sensor, similar to oxygen sensor arcB

794

583669

ABC transporter

393

3337561

Protein of unknown function involved in nitrogen fixation

72

583671

UrtB urea transport

525

583672

UrtC urea transport

371

583673

UrtD urea transport

278

583674

UrtE urea transport

230

583677

UreH urease accessory protein

288

583678

Urea amidohydrolase gamma

100

583679

Urea amidohydrolase beta

101

583680

Urea amidohydrolase alpha/UreC urease accessory protein

569

583681

UreE urease accessory protein

175

583682

UreF urease accessory protein

228

583683

UreG urease accessory protein

201

583685

nitroreductase

558

583686

ferredoxin, subunit of nitrite reductase

122

583691

DraT

328

583692

NifH nitrogenase iron protein (EC1.18.6.1)

296

583693

NifD nitrogenase molybdenum-iron protein alpha chain (EC1.18.6.1)

490

583694

NifK nitrogenase molybdenum-iron protein beta chain (EC1.18.6.1)

522

583695/3337559

NifT

80

3337558

ferredoxin

63

583696

NafY-2 nitrogenase accessory factor Y

243

583710/3337556

NifW nitrogen fixation protein

113

3337555

NifZ

151

583711/3337554

NifM

271

  1. The annotated nitrogen fixation homologs (Nif proteins) are embedded with a cluster of urea transport and degradation genes (Ure, Urea amidohydrolase and Urt transport families).