Large-Scale Comparison of Fungal Sequence Information: Mechanisms of Innovation in Neurospora crassa and Gene Loss in Saccharomyces cerevisiae

Table 4.

Genes Lost from S. cerevisiae: N. crassa Discontigs with Nonfungal Homologs that Lack Detectable S. cerevisiae Orthologs

Discontig Identification NF E-value SC E-value Global distribution Fungal distribution
I. Cell division
  391 Sir2p family homolog, human 3 × 10−7 An, Eu, A, B En
II. Cell signaling/cell communication
   39 DdCAD-1 (Ca2+-binding protein) 2 × 10−10 Eu
  563 NPH1 (nonphototrophic hypocotyl) 2 × 10−8 Pl, B
  861 shaker K+channel 2 × 10−48 3 × 10−21 g An, Pl, A, B Sp
III. Cell structure/cytoskeleton
  223 N-acetyl-β-d-glucosaminidase 10−17 An, Pl, Eu, B Ca
  789 α-actinin 10−34 10−6 An, Eu Sp
V. Metabolism
   70 BPG-independent phosphoglycerate mutase 8 × 10−26 An, Pl, Eu, B En
   71 pyruvate decarboxylase 10−28 7 × 10−15 B Sp
   97 glycine amidinotransferase 10−5  An, B
  125 citrate lyase β-chain 3 × 10−15 An, B
  209 UDP-glucose dehydrogenase 2 × 10−6 An, Pl, B, A
  220 annexin XIV 6 × 10−33 An, Pl, Eu
  225 β-glucosidase 2 × 10−47 0.07  Pl, Eu, B NA, Ca, En
  338 peroxisomal copper amine oxidase 4 × 10−27 B Ca
  362 dioxygenase, C. elegans 3 × 10−8 An, B Ca
  368 nitrite reductase 4 × 10−22 B NA, En
  396 4-hydroxyphenylpyruvate dioxygenase 6 × 10−21 An, B En
  454 α-glucosidase (maltase) 3 × 10−37 3 × 10−7 An, Pl, Eu, A, B NA, Sp, Ca, En
  474 fructosyl amino acid oxidase 4 × 10−6 An, B Sp, En
  521 methylmalonate-semialdehyde dehydrogenase 9 × 10−15 An, Pl, B Ca, En
  522 sterol carrier protein thiolase 6 × 10−20 0.022 An, A, B
  526 enoyl-CoA hydratase 4 × 10−14 An, Pl, A, B
  536 γ-glutamyl transpeptidase 8 × 10−11 B Ca
  595 NADP-dependent oxidoreductase 10−13 0.019 An, Pl, Eu, B En
  604 sorbitol utilization protein 6 × 10−17 10−6   An, Pl, B Sp, Ca, En
  693 uricase (urate oxidase), peroxisomal 7 × 10−8 An Sp, Ca, En
  794 monooxygenase 2 × 10−24 B Ca
  826 3-hydroxyisobutyrate dehydrogenase 2 × 10−8 An, B En
  876 esterase 2 × 10−8 An, B Sp
  880 α-amylase 10−5 An, Eu, B NA, Sp, En
 1016 thioesterase II 2 × 10−8 An, Pl, B
 1090 glycerol kinase 2 × 10−28 6 × 10−11 An, A, B
VI. Protein synthesis
  128 rabGTPase 5 × 10−70 4 × 10−57 An, Pl, Eu Sp, Ca, En
  144 Int-6 (eIF3 subunit) 8 × 10−9 An
  253 40S ribosomal protein S15 3 × 10−44 2 × 10−32 An, Pl, Eu, A, B Sp, Ca
  276 BRCA1 associated protein 1 5 × 10−17 An, Pl Sp, Ca
  621 dolichol monophosphate transferase 2 × 10−23 6 × 10−10 An, Eu, A, B Sp, Ca
  910 ubiquitin-activating enzyme 7 × 10−16 An, Pl, Eu Sp
 1079 r-Vps33a 10−15 An Sp
 1110 eIF-3 p40 10−21 10−5   An Sp
Unclassified
  133 C. elegansC25D7.8 3 × 10−7 An
  467 hypothetical protein, Streptomyces coelicolor 4 × 10−7 B Sp
  577 regucalcin (Ca2+-binding protein) 10−5  An, A, B En
  606 hypothetical protein similar to NO synthase 9 × 10−8 An Sp
 1012 C. elegans F18F11.1 (peroxisomal protein homolog) 4 × 10−17 An
 1054 5′-nucleotidase precursor 8 × 10−15 An, B
  • E-value of best BLAST hit against nonfungal data set.

  • E-value of best BLAST hit against S. cerevisiae data set.

  • Phylogenetic distribution of orthologs based upon BLAST searches. (An) = Animals; (Pl) = plants; (Eu) = Other Eukaryotes; (A) = Archaea; (B) = Bacteria.

  • Distribution of orthologs within the fungi based upon BLAST searches. (NA) = Nonascomycete fungi; (Sp) = S. pombe; (Ca) = C. albicans; (En) = A. nidulans). Presence of an ortholog to the N. crassa sequence in any of these fungi, except A. nidulans, was considered evidence for loss in theS. cerevisiae lineage.

  • Functional categories are as described in Nelson et al. (1997), based on a modification of the system described by White and Kerlavage (1996).

  • No S. cerevisiae database sequence received anE-value < 0.1.

  • N. crassa sequences with S. cerevisiaehomologs that are listed in this table are likely to correspond to cases in which the orthologous S. cerevisiae gene has been lost but a paralogous gene retained.

This Article

  1. Genome Res. 10: 416-430

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