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Table 1 Most abundant protein domains in diatom genomes

From: Genome and low-iron response of an oceanic diatom adapted to chronic iron limitation

COG   To Tp Pt Fc
ATPases      
   COG0515 SPS1, serine/threonine protein kinase 115 132 119 137
   COG0464 SpoVK, ATPases of the AAA+ class 90 43 38 44
   COG1132 MdlB, ABC-type multidrug transport system, ATPase and permease components 54 44 47 51
   COG1222 RPT1, ATP-dependent 26S proteasome regulatory subunit 50 41 37 42
   COG0465 HflB, ATP-dependent Zn proteases 49 37 35 39
   COG1223 Predicted ATPase (AAA+ superfamily) 44 39 34 41
   COG3899 Predicted ATPase 42 48 11 2
   COG2274 SunT, ABC-type bacteriocin/lantibiotic exporters, contain an amino-terminal double-glycine peptidase domain 42 52 50 61
   COG5265 ATM1, ABC-type transport system involved in Fe-S cluster assembly, permease and ATPase components 40 33 30 33
   COG4618 ArpD, ABC-type protease/lipase transport system, ATPase and permease components 39 41 42 43
   COG4987 CydC, ABC-type transport system involved in cytochrome bd biosynthesis, fused ATPase and permease components 31 50 46 56
   COG4988 CydD, ABC-type transport system involved in cytochrome bd biosynthesis, ATPase and permease components 29 52 49 60
   COG0488 Uup, ATPase components of ABC transporters with duplicated ATPase domains 29 50 46 53
   COG1131 CcmA, ABC-type multidrug transport system, ATPase component 22 56 52 65
   COG0661 AarF, predicted unusual protein kinase 21 21 22 26
   COG0474 MgtA, cation transport ATPase 12 19 19 18
Basic cellular functions      
   COG0513 SrmB, superfamily II DNA and RNA helicases 46 48 44 54
   COG0553 HepA, superfamily II DNA/RNA helicases, SNF2 family 35 27 24 36
   COG5059 KIP1, kinesin-like protein 24 25 15 14
   COG1643 HrpA, HrpA-like helicases 21 14 9 20
   COG0443 DnaK, molecular chaperone 18 14 9 10
   COG5021 HUL4, ubiquitin-protein ligase 15 7 8 8
   COG5022 Myosin heavy chain 14 11 9 9
   COG1249 Lpd, Pyruvate/2-oxoglutarate dehydrogenase complex, dihydro-lipoamide dehydrogenase (E3) component, and related enzymes 12 14 13 20
Chitinases      
   COG3325 ChiA, chitinase 19 19 1 0
  1. Protein domains are listed based on Clusters of Orthologous Groups COG with an E-value threshold of 1.0E-10. To, Thalassiosira oceanica; Tp, Thalassiosira pseudonana; Pt, Phaeodactylum tricornutum; Fc. Fragilariopsis cylindrus.