Conservation and Variability of Synaptonemal Complex Proteins in Phylogenesis of Eukaryotes
Table 5
SC proteins with similarities to proteins from the proteomes of multicellular eukaryotes.
Eukaryotic taxa
Total proteins in the NCBI databasea
Proteins of the SC central space
Lateral element proteins and other SC proteins
1
2
3
4
From animals
From plants and fungi
From plants and fungi
From animals
Porifera and Placozoa (sponges, placozoans, and Metazoa)
16445
SYP-1 Ce (56), C(3)G Dm (70), SYCP1 Dr (66), SYCP1 Mm (88)
ZYP1a At (83), ZYP1b At (64), Zip1 Sc (72)
ASY2 At (76), ASY1 At (137), Hop1 Sc (71)
HIM-3 Ce (56), SC65 Dr (102), SC65 Mm (110), SYCP3-like Dr (112), SYCP3 Mm (116), FKBP6 Mm (208), SCP3(SYCP3)-like annotated for Amphimedon queenslandica
Coelenterates: Cnidaria (stingers), Ctenophora (sea walnuts), and Eumetazoa
81390
SYCE2 Dr (52), SYCE2 Mm (63)
Low similarity
ASY2 At (78), ASY1 At (137), Hop1 Sc (82)
HIM-3 Ce (68), SC65 Mm (100), SC65 Dr (105), SYCP3-like Dr (143), SYCP3 Mm (148), FKBP6 Mm (194), SYCP3-like annotated for Hydra magnipapillata
Platyhelminthes (flat worms, Eumetazoa, Bilateria, and Acoelomata)
81455
SYCP1 Mm (53)
Low similarity
ASY1 At (105), ASY2 At (62), Hop1 Sc (57)
HIM-3 Ce (68), SYCP2 Mm (53), FKBP6 Mm (138)
Nematoda (round worms, Bilateria, Coelomata, and Protostomia)
297231
C(3)G Dm (50), SYCP1 Dr (51), SYCP1 Mm (50)b
ZYP1a At (52), Zip1 Sc (50)
Hop1 Sc (75), ASY2 At (86), ASY1 At (124)
SC65 Dr (123), SC65 Mm (130), FKBP6 Mm (77), SC65 annotated for Ascaris suum and HIM-3, for several Caenorhabditis species (maximal score = 43)b
Mollusca (Protostomia)
121831
C(3)G Dm (68), SYP-1 Ce (68), SYCP1 Dr (64), SYCP1 Mm (99), SYCE2 Mm (51)
ZYP1b At (71), ZYP1a At (81), Zip1 Sc (77)
ASY1 At (89), Hop1 Sc (55)
SC65 Dr (57), SYCP3-like Dr (199), SC65 Mm (66), SYCP2 Mm (80), FKBP6 Mm (171), SYCP3 Mm (197), SYCP2 and SYCP3 annotated for Crassostrea gigas
Chelicerata (Panarthropoda 2 and Protostomia)
125005
Low similarity
Low similarity
Low similarity
SC65 Dr (88), SC65 Mm (99), FKBP6 Mm (179)
Mandibulata (Panarthropoda 3 and Protostomia)
1624768
Low similarity apart from cognate proteinsb
Low similarity
ASY1 At (63), Hop1 Sp (55), Hop1 Sc (60)
SC65 Dr (143), FKBP6 Mm (156), SC65 Mm (169)
As of the time of study (October 2012–April 2013).
bSimilarity with cognate proteins is not shown.
cThese scores (with -values ranging from to ) approximate the scores obtained for the random analogs of the SC proteins (-values ranging from to ) (italicized). Other designations are as in Table 3.