Proteomic Dataset Details

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PXD018851 — Myxobolus honghuensis; Thelohanellus kitauei; Myxobolus wulii — Nematocysts (cysts)

SpeciesMyxobolus honghuensis; Thelohanellus kitauei; Myxobolus wulii
ClassMyxozoa
Tissue / sampleNematocysts (cysts)
Treatment / condition-
InstrumentQ Exactive HF
PRIDE project PXD018851
Publication PMID 32637811
Raw files3
Search space is a combined multi-species database
This deposit contains more than one species. The search database is the union of the proteomes available for those species, so an identification may come from any of them and the dataset is not attributable to a single species.

Original study vs CnidoSite re-processing

Parameter As reported by the original study As applied by CnidoSite
Search engine not stated Comet 2026.01 + Percolator (Crux 4.2)
Sequence database CCPRD custom database / study-specific /mnt/sda/jackie/cnidaria/2.anno/Myxobolus_honghuensis.pep; /mnt/sda/jackie/cnidaria/2.anno/Thelohanellus_kitauei.pep
Combined search space of Myxobolus honghuensis (reference), Thelohanellus kitauei (reference)
Enzyme (not restated) trypsin (fully enzymatic, 2 termini)  ·  up to 2 missed cleavages
Precursor tolerance not stated 10 ppm
Fragment tolerance not stated 0.02 Da
Fixed modification C+57.021464 (carbamidomethyl cysteine)
Variable modification M+15.9949 (methionine oxidation)
Decoy strategy Comet internal reversed (1:1)
False discovery rate not stated q ≤ 0.01 at the PSM level (Percolator q-values, target-decoy); protein level q ≤ 0.01
Quantification spectral counting (PSMs)
Contaminants cRAP appended and flagged; 30 contaminant proteins identified and excluded from the reported protein list
Gene mapping Combined search space: peptides are mapped to gene models of whichever species in the deposit they match, and each protein links to that gene page.

Outcome of re-processing

Re-processed successfully. reprocessed against the CnidoSite reference proteome
PSMs at q≤0.01Peptides at q≤0.01 Gene-linked proteinsContaminants (excluded)
6,643 4,672 1,386 30

Pipeline version cnidosite-proteomics 1.0 · CnidoSite release 1.1 · incorporated 2026-09-18

Reproducing this dataset

Every stage is a single command; the parameter file written by stage 2 is the one shown in the table above.

python3 2.pipeline/02_fetch_pride.py PXD018851 # retrieve peak lists from PRIDE python3 2.pipeline/03_build_search_db.py "Myxobolus honghuensis; Thelohanellus kitauei; Myxobolus wulii" # proteome + cRAP python3 2.pipeline/04_run_search.py PXD018851 # writes comet.params, runs Comet python3 2.pipeline/05_fdr_percolator.py PXD018851 # Percolator, q ≤ 0.01 python3 2.pipeline/06_map_to_genes.py PXD018851 # peptides -> CnidoSite genes python3 2.pipeline/07_build_tables.py --release 1.1 # load tables + SQL

Most strongly supported proteins in this dataset

GeneProtein Unique peptidesPSMsCoverage (%) LengthBest qDescription
EVM0007958.1 MHONG_EVM0007958.1 63 198 38.5 1507 0.000289436 gene=EVM0007958
EVM0013745.1 MHONG_EVM0013745.1 44 57 30 1575 0.000289436 gene=EVM0013745
KII74575.1 TKITA_KII74575.1 33 36 21.7 1592 0.000289436 hypothetical protein RF11_16185 [Thelohanellus kitauei]
EVM0008257.1 MHONG_EVM0008257.1 31 49 22.1 1820 0.000289436 gene=EVM0008257
KII71942.1 TKITA_KII71942.1 25 31 25 1089 0.000289436 GTP-binding protein 1 [Thelohanellus kitauei]
EVM0003529.1 MHONG_EVM0003529.1 24 33 65.4 488 0.000289436 gene=EVM0003529
EVM0011333.1 MHONG_EVM0011333.1 23 47 39.6 697 0.000289436 gene=EVM0011333
KII73242.1 TKITA_KII73242.1 22 117 35.2 517 0.000289436 Serum response factor [Thelohanellus kitauei]
KII64277.1 TKITA_KII64277.1 22 32 21.1 1141 0.000289436 hypothetical protein RF11_10945 [Thelohanellus kitauei]
EVM0014152.1 MHONG_EVM0014152.1 21 59 60.6 391 0.000289436 gene=EVM0014152
KII73715.1 TKITA_KII73715.1 20 32 41.7 636 0.000289436 hypothetical protein RF11_11013 [Thelohanellus kitauei]
EVM0001225.1 MHONG_EVM0001225.1 20 26 57.6 368 0.000289436 gene=EVM0001225
EVM0011848.1 MHONG_EVM0011848.1 20 23 13.6 1692 0.000289436 gene=EVM0011848
EVM0012092.1 MHONG_EVM0012092.1 19 23 22.8 1021 0.000289436 gene=EVM0012092
EVM0002233.1 MHONG_EVM0002233.1 18 19 40.9 367 0.000289436 gene=EVM0002233

View all 1,386 proteins »

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