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Table 2 Mnemiopsis homologs to ciliary and rhabodmeric phototransduction cascade components and their reciprocal best BLAST hit.

From: Genomic organization, evolution, and expression of photoprotein and opsin genes in Mnemiopsis leidyi: a new view of ctenophore photocytes

Protein name (GenBank accession number of query protein)

GenBank accession number of top

Mnemiopsisresult (ML identifier)

E-value

Reciprocal best BLAST query result

Protein name [Species; GenBank accession number]

E-value

RNA-seq

Evidence?

Ciliary components

Opsin (ACB05673)

JQ724646

(ML13055)

2e-22

Opsin-3-like [Oreochromis niloticus; XP_003441288]

6e-31

Yes

G-alpha-s subunit (BAA81697)

JX564543

(ML012011)

1e-93

guanine nucleotide binding protein, alpha stimulating activity polypeptide [Daphnia pulex; EFX88427.1]

3e-177

Yes

G-alpha-i subunit (ACB05685.1)

JQ724654

(ML156514)

2e-129

G protein alpha subunit i class [Halocynthia roretzi; BAB79197.1]

2e-177

Yes

Transducin G-alpha-t1 (AAB01735_1)

JX564546

(MLRB156557)

9e-73

guanine nucleotide-binding protein G(i) subunit alpha-2 [Mus musculus; NP_032164.2]

3e-173

Yes

Transducin G-gamma-t1 (AAH25929_1)

JX564547

(ML17031)

7e-07

guanine nucleotide-binding protein G(T) subunit gamma-T1 [Otolemur garnettii; XP_003782721]

1e-06

Yes

GRK1 G protein-coupled receptor kinase 1 (AAH96611_1)

JX564550

(MLRB009169)

9e-110

G protein-coupled receptor kinase 5 [Callithrix jacchus; XP_002756686]

0.0

No

GMP-PDE alpha rod (NP_666198_1); GMP-PDE beta rod (P23440_3)

JX564548

(MLRB03248)

1e-97;

5e-99

sperm phosphodiesterase 5-like [Saccoglossus kowalevskii; XP_002733933]

0.0

Yes

GMP-PDE delta (O55057_1)

JX564549

(ML233327a)

6e-55

cGMP-specific rod phosphodiesterase 6D delta [Trichoplax adhaerens; XP_002113713]

8e-55

Yes

Phosphodiesterase (ACB05690)

JQ724657

(ML096829)

4e-105

High affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9A-like [Danio rerio; XP_692819.2]

1e-163

Yes

Cyclic nucleotide gated ion channel (CAB42891.1)

JX564544

(ML08605)

and

JX564545

(ML054419)

2e-105

1e-115

cGMP-gated cation channel alpha-1-like, partial [Cricetulus griseus; XP_003515326]

predicted protein [Nematostella vectensis; XP_001641603.1]

2e-124

1e-121

Yes

RGS9-1 regulator of G-protein signaling 9 isoform 1 (NP_035398_2)

JX564552

(MLRB369320)

2e-14

regulator of G-protein signaling loco-like [Megachile rotundata; XP_003705980]

1e-27

No

GC1 guanylyl cyclase GC-E precursor (NP_032218_2)

JX564553

(ML17474)

2e-131

natriuretic peptide receptor 1-like [Saccoglossus kowalevskii; XP_002734106]

0.0

Yes

Recoverin (NP_033064_1);

GCAP1 guanylyl cyclase-activating protein 1 (NP_032215_2);

GCAP2 guanylyl cyclase-activating protein 2 (NP_666191_1)

JX564551

(ML096819)

9e-51;

1e-32;

2e-38

Hypothetical protein DAPPUDRAFT_65663 [Daphnia pulex; EFX65172]

2e-121

Yes

Rhabdomeric components

G-alpha-q subunit (ACB05683)

JQ724653

(ML009153)

4e-105

Heterotrimeric GTP-binding protein alpha subunit G-alpha-q [Litopenaeus vannamei; AAT44837.1]

8e-134

Yes

Phospholipase C (ACB05675)

JQ724649

(ML04921)

1e-178

Predicted protein [Nematostella vectensis; XP_001635876.1]

≤1e-1000

Yes

Trp-C protein (ACB05689)

JQ724656

(ML234550)

1e-11

Similar to TRP gamma cation channel [Nasonia vitripennis; XP_001604587.1]

1e-53

Yes

Shared components

Visual G beta (ACB05681)

JQ724652

(ML02234)

7e-162

G-protein beta subunit [Meloidogyne javanica; ACB97665.1]

≤1e-1000

Yes

Rhodopsin kinase (ACB05677)

JQ724650

(ML04904)

8e-85

Beta-adrenergic receptor kinase 2 [Danio rerio; NP_001128197.1]

≤1e-1000

Yes

Arrestin (ACB05679 and P20443_1)

JQ724651

(ML047926)

4e-55

TRIADDRAFT_64255 [Trichoplax adhaerens; XP_002116188.1]

≤1e-1000

Yes

Retinal-binding protein (ACB05687)

JQ724655

(ML167044)

2e-28

Similar to SEC14-like protein 1 isoform 4 [Canis familiaris; XP_857362.1]

≤1e-1000

Yes

  1. For each query protein, the corresponding Mnemiopsis protein model is listed with the E-value of the top BLAST result. The Mnemiopsis protein model was then used as a query in a reciprocal best BLAST search of the non-redundant protein database (NCBI) and the top result is listed along with the E-value of the BLAST result. RNA-seq data supports the developmental mRNA gene expression of each of these protein models. BLAST: Basic Local Alignment Search Tool; ML: Mnemiopsis leidyi; PDE: phosphodiesterase; TRP: transient receptor potential.