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Table 1

Immunoproteomic and mass-spectrometric identification of Eimeria tenella sporozoite proteins recognized by hyperimmune sera raised against three Eimeria species of interest.

Spot IDa Identified protein grouped by functions Accession numberb No. of matched peptidesc Theoretical Mr/pI Protein scored Protein sequence coverage (%)e
Group 1 Proteins of known or predicted enzymatic activities
01 ATP-binding cassette protein subfamily B member 2, putative [Eimeria tenella] XP_013228359.1 16/41 147997/5.56 108 14%
02 ATPase, AAA family domain-containing protein, putative, partial [Eimeria tenella] XP_013235934.1 16/32 50654/9.11 204 32%
09 adenylate kinase, putative [Eimeria tenella] XP_013232446.1 16/53 28214/8.59 211 70%
10 glutathione/thioredoxin peroxidase, putative [Eimeria tenella] XP_013231991.1 15/37 27911/9.20 175 53%
11 purine nucleoside phosphorylase, putative [Eimeria tenella] XP_013234769.1 13/37 27907/6.52 155 40%
14 vacuolar ATP synthase subunit d, putative [Eimeria tenella] XP_013233504.1 18/35 27425/9.46 263 79%
Group 2 Protein transport
03 vacuolar sorting receptor protein, putative [Eimeria tenella] XP_013229187.1 15/43 61219/6.58 134 31%
12 mitochondrial import inner membrane translocase subunit tim17, putative [Eimeria tenella] XP_013227835.1 15/55 21658/9.38 214 62%
Group 3 Motor-related proteins
04 endonuclease/exonuclease/phosphatase domain-containing protein, putative [Eimeria tenella] XP_013229466.1 12/45 51059/7.15 161 31%
05 kinesin motor domain-containing protein, putative [Eimeria tenella] XP_013233623.1 20/43 61229/5.95 179 40%
07 Peptidyl-prolyl cis-trans isomerase d-like protein, related [Eimeria tenella] XP_013230117.1 13/44 63615/5.58 100 27%
08 ATP-dependent metalloprotease ftsh, putative (Fragment) [Eimeria tenella] XP_013231415.1 9/41 14431/5.42 119 34%
16 26S proteasome non-ATPase regulatory subunit, putative, partial [Eimeria tenella] XP_013229897.1 12/49 17586/7.57 151 52%
Group 4 Proteins of nuclear location & function
06 meiosis-specific nuclear structural protein 1, putative [Eimeria tenella] XP_013229795.1 18/34 60929/7.66 146 35%
13 Transcription factor IIH component, related, partial [Eimeria tenella] XP_013234425.1 15/39 30398/7.07 190 41%
15 ribosomal protein L23, putative [Eimeria tenella] XP_013230060.1 15/37 20662/10.50 163 49%
Group 5 Protein translation
17 eukaryotic translation initiation factor 4e, putative [Eimeria tenella] XP_013231945.1 12/42 29332/6.63 158 36%
18 zinc finger (C3HC4 RING finger) protein, putative, partial [Eimeria tenella] XP_013234909.1 16/42 15947/6.77 206 63%
a

IDs correspond to protein spots revealed by 2-dimensional gel electrophoresis (2-DE) (as shown in Fig. 1) and divided into five non-overlapping groups.

b

Accession number as captured in NCBI.

c

Number of peptides that match the predicted protein sequence.

d

Protein score is −10*Log (P), where P is the probability that the observed match is a random event. Protein scores greater than 71 are considered statistically significant (p < 0.05).

e

Percentage of predicted protein sequence covered by matched peptides.

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