Table 2

Affiliations of representative nifH-deduced protein sequences grouped into OPUs (all samples pooled) and which contain 10 or more sequences

Total no. of sequences in OPUSource OPU, protein accession no.Closest relative (accession no.)Alignment (bp)Similarity (%)aTaxonomic description
161OPU 1, AEU12166Trichodesmium erythraeum (YP_723617)117/11899Cyanobacteria
61OPU 2, AEU12167Uncultured bacterium (ACB38684)116/11898Cyanobacteria
12OPU 3, AEU12168Nodularia spumigena (AAS75594)106/10898Cyanobacteria
104OPU 4, AEU12169Cylindrospermopsis raciborskii (ZP_06309412)114/11996Cyanobacteria
215OPU 5, AEU12170Methylocystis echinoides (CAD91843)115/11897Alphaproteobacteria
137OPU 6, AEU12171Methylocystis echinoides (CAD91843)115/11897Alphaproteobacteria
100OPU 7, AEU12172Bradyrhizobium sp. (BAI67060)117/11899Alphaproteobacteria
29OPU 8, AEU12173Uncultured bacterium from Hawaiian Montipora corals (ACD87590)115/11897Alphaproteobacteria
193OPU 9, AEU12174Uncultured bacterium (ACH99081)116/11898Alphaproteobacteria
26OPU 10, AEU12175Wolinella succinogenes (NP_907560)118/13289Epsilonproteobacteria
10OPU 11, AEU12176Dickeya dadantii (YP_002986124)118/11999Gammaproteobacteria
61OPU 12, AEU12177Uncultured bacterium from Hawaiian Montipora corals (ACD87560)114/11996Gammaproteobacteria
15OPU 13, AEU12178Methylobacter luteus (CAD91849)114/11996Gammaproteobacteria
43OPU 14, AEU12179Uncultured bacterium from Hawaiian Montipora corals (ACD87623)112/11994Deltaproteobacteria
18OPU 15, AEU12180Desulfovibrio salexigens (AAG23893)96/10988Deltaproteobacteria
29OPU 16, AEU12181Uncultured bacterium (ABQ50766)103/11987Deltaproteobacteria
14OPU 17, AEU12182Uncultured bacterium (ABQ50766)103/11987Deltaproteobacteria
75OPU 18, AEU12183Uncultured bacterium (ABQ50766)119/119100Deltaproteobacteria
  • a Protein sequences were aligned to their closest relative using protein BLAST (Blastp) results for affiliations.