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Table 4 Proteins from cellular vacuoles, ribonucleoprotein particles (vaults), nuclei and mitochondria

From: Proteomic study of the brackish water mussel Mytilopsis leucophaeata

Protein Eucaryote Function Localisation
V-type proton ATPase catalytic subunit A [P314400] Manduca sexta (tobacco horn worm) Involved in cellular trafficking, exocytosis and endocytosis, and interaction with the cytoskeleton (Marshansky and Futai 2008) Cellular vacuoles
Major vault protein [Q5EAJ7] Strongylocentrotus purpuratus (purple sea urchin) Signal pathway regulation and immune defence (Berger et al. 2009) Ribonucleoprotein particles (41 × 41 × 71.5 nm) or vaults
Histone H2A.V [P02272] Gallus gallus (chicken) Histones play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability Part of nucleosome core (nuclei)
Histone H2A [P02268] Sepia officinalis (common cuttlefish) See above and below See above and below
Histone H2B, gonadal [P02284] Patella granatina (sand paper limpet) See above; further, histones and histone fragments circulate via transporters through the cytoplasm and so may be transferred to the plasma membrane (Schuurmans Stekhoven et al. 2004) from where they execute their anti-microbial activity (Seo et al. 2011) Nuclei, cytoplasm, and plasmalemma
Histone H3 [P02299] Drosophila melanogaster (fruit fly) See above See over
Histone H4 [P35059] Acropora formosa (stony corals) See above See over
Proteasome subunit α type-2 [Q73672] Carassius auratus (gold fish) Cleavage of peptide bonds with very broad specificity Cytoplasm and nucleus
Proteasome subunit α type-5-A [O81149] Arabidopsis thaliana (thale cress) Brake down of damaged or redundant proteins Cytosol and nucleus
Proteasome subunit α type-7 [O13268] Gallus gallus (chicken) ATP dependent cleavage of peptide bonds with broad specificity Cytoplasm and nucleus
14-3-3 protein ε [P92177] Drosophila melanogaster (fruit fly) Multifunctional: regulation of enzymatic activity, regulation of subcellular localisation, inhibition of protein-protein or protein-DNA interaction, protection against dephosphorylation or proteolytic degradation, stabilisation of multiprotein complexes (Obsil and Obsilova 2011) Plasmalemma, mitochondrion, nucleus
ATP synthase, subunit α [Q9XXK1] Caenorhabditis elegans (round worm) ATP synthesis Mitochondrion
ATP synthase, subunit β precursor [Q5ZLC5] Gallus gallus (chicken) ATP synthesis Mitochondrion
Succinate dehydrogenase [Q28ED0] Xenopus tropicalis (Western clawed frog) Transfer of electrons to coenzyme Q Mitochondrion
ADP/ATP carrier protein 3 [O49447] Arabidopsis thaliana (thale cress) Exchange of ADP and ATP across the mitochondrial inner membrane Idem
Probable malate dehydrogenase 3 [Q54VM2] Dictyostelium discoideum (amoeba) Oxidation of malate to oxaloacetate Cytoplasm and mitochondria (Danis and Farkas 2009; Gietl 1992)
Phosphoenolpyruvate carboxykinase [Q05893] Ascaris suum (pig roundworm) Conversion of oxaloacetate to phosphoenolpyruvate and vice versa Mitochondria (Stryer 1995b)