RESEARCH REPORT ISJ 9: 212-222, 2012 ISSN 1824-307X RESEARCH REPORT Microarray validation of molecular and cellular signaling in Homarus americanus and Penaeus monodon KJ Mantione, C Kim, FM Casares, GB Stefano Neuroscience Research Institute, State University of New York - College at Old Westbury, Old Westbury, NY 11568-0210, USA Accepted December 11, 2012 Abstract Previous studies have demonstrated that invertebrate neural tissues contain mammalian-like neurotransmitters, which activate specific cellular functions. Therefore, it was of interest to attempt to identify these molecules via Agilent gene expression microarrays. The array was used to analyze the transcriptional profiles of lobster and shrimp RNA samples. We show dopamine, serotonin, and acetylcholine genes and their corresponding receptors are significantly expressed in lobster and shrimp neural tissues with a signal to noise value greater than 2. These signal molecules are directly related to previously discovered molecules in invertebrates, suggesting that they first appeared earlier in evolution and are necessary for an animal’s survival. Key Words: lobster; shrimp; neurotransmitter; microarray; acetylcholine; biogenic amines Introduction Invertebrate neural tissues contain neurotransmitters, i.e., biogenic amines, found in mammals (see (Stefano, 1982, 1990, 1992). In regard to catecholamines, the neural tissue of Mytilus edulis contains dopamine (DA) and norepinephrine (NE) as well as the indoleamine serotonin (Stefano and Aiello, 1975 Stefano et al., 1976, 1977; Hidaka et al., 1977; Twarog et al., 1977; Malanga and Young, 1978; Satchell and Twarog, 1978; Stefano, 1982, 1990; Zhu et al., 2005). These studies imply that elements of the neurotransmitter functions, i.e., enzymes and receptors, are present in the neural tissues of this organism as well (Malanga and Aiello, 1971; Malanga, 1974 Stefano et al., 1976, 1978; Catapane et al., 1977, 1978, 1979, 1980 Twarog et al., 1977; Collins et al., 1980; Hidaka et al., 1977; Malanga and Young, 1978; Satchell and Twarog, 1978; Malanga and Poll, 1979; Stefano and Catapane, 1980). Given this documentation we sought to use microarray technology to validate previous studies documenting the presence of these neurotransmitters in lobster and shrimp neural tissues. Previously we demonstrated cholinergic ___________________________________________________________________________ Corresponding author: Kirk J Mantione Neuroscience Research Institute State University of New York - College at Old Westbury Old Westbury, NY 11568-0210, USA E-mail: kjmantione@sunynri.org signaling elements, (acetylcholine and respective receptors in lobster (Zhu et al., 2006) as well as chemical messengers associated with catecholamine metabolism (Casares et al., 2005). We also performed a similar analysis in Mytilus edulis (Gerber et al., 2007; Mantione et al., 2009). Thus, given their presence and action in invertebrate physiological systems it was of great interest to determine if human microarray chips would also show that they are present along with other processes associated with their signaling. The results of the present study support the observation that these signaling molecules appear to have evolved earlier than previously realized, given the many support processes now demonstrated, validating years of research on this topic. Materials and Methods Homarus americanus and Penaeus monodon were purchased live commercially. Animals were then transported to the laboratory in chilled seawater (4 - 10 °C). In the laboratory, they were maintained as previously described in detail (Stefano et al., 1994). Neural tissues, lobster and shrimp ventral nerve cords were dissected and kept on ice until needed. Agilent microarray gene expression array Agilent Human Genome Survey Arrays were used to analyze the transcriptional profiles of RNA 212 samples. The Agilent Human Genome Survey Array contains 31,700 60-mer oligonucleotide probes representing a set of 27, 868 individual human genes and more than 1,000 control probes. Sequences used for microarray probe design are from curated transcripts from the Celera Genomics Human Genome Database (www.celeradiscoverysystem.com), RefSeq transcripts that have been structurally curated from the LocusLink public database (http://ncbi.nlm.nih.bov/LocusLink/refseq.html), high- quality cDNA sequences from the Mammalian Gene Collection (MGC) (http://mgc.nci.nih.gov) and transcripts that were experimentally validated at Applied Biosystems. Total RNA from 1 lobster and 3 shrimp ventral nerve cords were isolated separately with the RNeasy Mini Kit (Qiagen, Valencia, CA, USA). The tissue was lysed in 600 µl buffer RLT and homogenized by passing the lysate 5 times through a 20-gauge needle fitted to a 3 ml syringe. The samples were then processed following the manufacturer's detailed instructions. In the final step, the RNA was eluted with 50 µl of RNase-free water by centrifugation for 1 min at 10,000 rpm. Quality of the RNA was analyzed using Agilent 2100 Bioanalyzer (Agilent, Santa Clara, CA, USA) using the total RNA nanochip according to manufacturer’s protocol. RNA was reverse transcribed and the cDNA was transcribed and labeled with Cyanine-3- CTP following manufacturer's protocol. To each chip, 2 µg of labeled cRNA targets were hybridized at 55 °C for 18 h. Agilent microarray scanner software was used to extract assay signal and assay signal to noise ratio values from the microarray images. To determine expressed genes, the gene list was filtered by removing genes with a signal to noise value below two. The gene list was further filtered into moderately highly expressed and very highly expressed genes. Data sets were managed using Spotfire for Functional Genomics (TIBCO Software Inc., Palo Alto, CA, USA). Results The previously discovered invertebrate neurotransmitter molecules include dopamine, as well as other biogenic amines, acetylcholine and serotonin. Tables 1-4 list the associated genes that were significantly expressed as analyzed by the Gene Survey microarray (Agilent) with a signal to noise value greater than 2 in untreated lobster nervous tissue. Table 1 Homarus americanus dopamine and serotonin pathway genes present Dopamine receptors present DRD1 dopamine receptor D1 DRD2 dopamine receptor D2 DRD3 dopamine receptor D3 DRD4 dopamine receptor D4 DRD5 dopamine receptor D5 Serotonin receptors present HTR1A 5-hydroxytryptamine (serotonin) receptor 1A, G protein-coupled HTR1B 5-hydroxytryptamine (serotonin) receptor 1B, G protein-coupled HTR1D 5-hydroxytryptamine (serotonin) receptor 1D, G protein-coupled HTR1E 5-hydroxytryptamine (serotonin) receptor 1E, G protein-coupled HTR1F 5-hydroxytryptamine (serotonin) receptor 1F, G protein-coupled HTR2A 5-hydroxytryptamine (serotonin) receptor 2A, G protein-coupled HTR2B 5-hydroxytryptamine (serotonin) receptor 2B, G protein-coupled HTR2C 5-hydroxytryptamine (serotonin) receptor 2C, G protein-coupled HTR3A 5-hydroxytryptamine (serotonin) receptor 3A, ionotropic HTR3B 5-hydroxytryptamine (serotonin) receptor 3B, ionotropic HTR4 5-hydroxytryptamine (serotonin) receptor 4, G protein-coupled HTR5A 5-hydroxytryptamine (serotonin) receptor 5A, G protein-coupled HTR6 5-hydroxytryptamine (serotonin) receptor 6, G protein-coupled HTR7 5-hydroxytryptamine (serotonin) receptor 7, adenylate cyclase-coupled Dopamine and serotonin metabolism genes present COMT catechol-O-methyltransferase DBH dopamine beta-hydroxylase (dopamine beta-monooxygenase) DDC dopa decarboxylase (aromatic L-amino acid decarboxylase) MAOA monoamine oxidase A MAOB monoamine oxidase B TDO2 tryptophan 2,3-dioxygenase TH tyrosine hydroxylase TPH1 tryptophan hydroxylase 1 TPH2 tryptophan hydroxylase 2 Dopamine and serotonin transporters present SLC6A3 solute carrier family 6 (neurotransmitter transporter, dopamine), member 3 SLC6A4 solute carrier family 6 (neurotransmitter transporter, serotonin), member 4 213 Other dopamine and serotonin related genes present ALDH5A1 aldehyde dehydrogenase 5 family, member A1 BDNF brain-derived neurotrophic factor CALY calcyon neuron-specific vesicular protein CYP2D6 cytochrome P450, family 2, subfamily D, polypeptide 6 EPHB1 EPH receptor B1 GDNF glial cell derived neurotrophic factor GFAP glial fibrillary acidic protein MOXD1 monooxygenase, DBH-like 1 NR4A1 nuclear receptor subfamily 4, group A, member 1 NR4A3 nuclear receptor subfamily 4, group A, member 3 PDYN prodynorphin PTGS2 prostaglandin-endoperoxide synthase 2 (prostaglandin G/H synthase and cyclooxygenase) SLC18A1 solute carrier family 18 (vesicular monoamine), member 1 SLC18A2 solute carrier family 18 (vesicular monoamine), member 2 SYN2 synapsin II Table 2 Homarus americanus signal transduction pathway genes present cAMP/PKA pathway activity ADCY1 adenylate cyclase 1 ADCY2 adenylate cyclase 2 ADCY3 adenylate cyclase 3 ADCY5 adenylate cyclase 5 CASP3 caspase 3, apoptosis-related cysteine peptidase CDK5 cyclin-dependent kinase 5 CREB1 cAMP responsive element binding protein 1 DUSP1 dual specificity phosphatase 1 FOS FBJ osteosarcoma oncogene MAPK1 mitogen-activated protein kinase 1 PPP1R1B protein phosphatase 1, regulatory (inhibitor) subunit 1B PRKACA protein kinase, cAMP-dependent, catalytic, alpha P13K/AKT pathway activity AKT1 thymoma viral proto-oncogene 1 AKT2 thymoma viral proto-oncogene 2 AKT3 thymoma viral proto-oncogene 3 GSK3A glycogen synthase kinase 3 alpha PIK3CA phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha PIK3CG phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit gamma PLA2 pathway activity ALOX12 arachidonate 12-lipoxygenase PDE10A phosphodiesterase 10A PDE4A phosphodiesterase 4A PDE4B phosphodiesterase 4B PDE4C phosphodiesterase 4C PDE4D phosphodiesterase 4D PLA2G5 phospholipase A2, group V PLC pathway activity ITPR1 inositol 1,4,5-trisphosphate receptor 1 PLCB1 phospholipase C, beta 1 PLCB2 phospholipase C, beta 2 PLCB3 phospholipase C, beta 3 G-protein coupled receptor regulation activity ADRB1 adrenoceptor beta 1 ADRB2 adrenoceptor beta 2 ADRBK1 adrenergic, beta, receptor kinase 1 ADRBK2 adrenergic, beta, receptor kinase 2 APP amyloid beta (A4) precursor protein ARRB1 arrestin, beta 1 ARRB2 arrestin, beta 2 GRK4 G protein-coupled receptor kinase 4 GRK5 G protein-coupled receptor kinase 5 GRK6 G protein-coupled receptor kinase 6 SNCA synuclein, alpha (non A4 component of amyloid precursor) SNCAIP synuclein, alpha interacting protein 214 Table 3 Homarus americanus cell signaling genes present ACVR2B activin A receptor, type IIB BMP1 bone morphogenetic protein 1 CCL1 chemokine (C-C motif) ligand 1 CCL13 chemokine (C-C motif) ligand 13 CCL15 chemokine (C-C motif) ligand 15 CCL19 chemokine (C-C motif) ligand 19 CCL23 chemokine (C-C motif) ligand 23 CCL24 chemokine (C-C motif) ligand 24 CCNC cyclin C CCND3 cyclin D3 CCNL1 cyclin L1 CCR6 chemokine (C-C motif) receptor 6 CCR9 chemokine (C-C motif) receptor 9 CCRL2 chemokine (C-C motif) receptor-like 2 CDC14A CDC14 cell division cycle 14 homolog A CDC23 cell division cycle 23 homolog CDC25A cell division cycle 25 homolog A CDK6 cyclin-dependent kinase 6 CSF2RB colony stimulating factor 2 receptor, beta, low-affinity (granulocyte-macrophage) CXCL12 chemokine (C-X-C motif) ligand 12 CXCR3 chemokine (C-X-C motif) receptor 3 DAPK1 death-associated protein kinase 1 DOCK1 dedicator of cytokinesis 1 EPOR erythropoietin receptor GDF2 growth differentiation factor 2 GDF8 growth differentiation factor 8 IFNK interferon, kappa IL11RA interleukin 11 receptor, alpha IL15 interleukin 15 IL16 interleukin 16 IL18BP interleukin 18 binding protein IL23R interleukin 23 receptor IL31RA interleukin 31 receptor A IL7 interleukin 7 LATS1 LATS, large tumor suppressor, homolog 1 LEPR leptin receptor LIF leukemia inhibitory factor MOBK1B MOB kinase activator 1A MYH11 myosin, heavy polypeptide 11, smooth muscle NRP1 neuropilin 1 OSM oncostatin M PARD3 par-3 partitioning defective 3 homolog PARD6A par-6 partitioning defective 6 homolog alpha NAMPT nicotinamide phosphoribosyltransferase PF4 platelet factor 4 PIN1 peptidylprolyl cis/trans isomerase, NIMA-interacting 1 PRC1 protein regulator of cytokinesis 1 STAT1 signal transducer and activator of transcription 1 TLR2 toll-like receptor 2 TNFRSF11A tumor necrosis factor receptor superfamily, member 11A TNFRSF25 tumor necrosis factor receptor superfamily, member 25 215 Table 4 Homarus americanus other neurotransmitter related genes present ACHE Acetylcholinesterase BCHE Butyrylcholinesterase CHRM1 cholinergic receptor, muscarinic 1 CHRM2 cholinergic receptor, muscarinic 2 CHRM3 cholinergic receptor, muscarinic 3 CHRM4 cholinergic receptor, muscarinic 4 CHRM5 cholinergic receptor, muscarinic 5 CHRNA1 cholinergic receptor, nicotinic, alpha 1 (muscle) CHRNA10 cholinergic receptor, nicotinic, alpha 10 (muscle) CHRNA2 cholinergic receptor, nicotinic, alpha 2 (muscle) CHRNA3 cholinergic receptor, nicotinic, alpha 3 (muscle) CHRNA4 cholinergic receptor, nicotinic, alpha 4 (muscle) CHRNA5 cholinergic receptor, nicotinic, alpha 5 (muscle) CHRNA6 cholinergic receptor, nicotinic, alpha 6 (muscle) CHRNA9 cholinergic receptor, nicotinic, alpha 9 (muscle) CHRNB1 cholinergic receptor, nicotinic, beta 1 (muscle) CHRNB2 cholinergic receptor, nicotinic, beta 2 (muscle) CHRNB3 cholinergic receptor, nicotinic, beta 3 (muscle) CHRNB4 cholinergic receptor, nicotinic, beta 4 (muscle) CHRND cholinergic receptor, nicotinic, delta (muscle) CHRNE cholinergic receptor, nicotinic, epsilon (muscle) CHRNG cholinergic receptor, nicotinic, gamma (muscle) COLQ collagen-like tail subunit (single strand of homotrimer) of asymmetric acetylcholinesterase SLC18A3 solute carrier family 18 (vesicular monoamine), member 3 SLC5A7 solute carrier family 5 (choline transporter), member 7 SLC6A2 solute carrier family 6 (neurotransmitter transporter, noradrenalin), member 2 Tables 5 - 8 list the associated genes that were significantly expressed as analyzed by the Gene Survey microarray (Agilent) with a signal to noise value greater than 2 in untreated shrimp nervous tissue. Gene sequences detected with signal to noise values greater than 2 were considered to be present. Given the logarithmic analysis supplied by the SpotFire for functional genomics program (SpotFire, Somerville, Maine, USA), any positive signal to noise value indicates gene presence is in greater amounts than background noise. Furthermore, the gene copy number of the human transcriptome on the microarray chip is not identical to the gene copy number of the respective animal. According to this criterion, most of the genes detected in the lobster were between the signal to noise ratio of 2 to 3. The ratios for the CHRNA5, HTR3A, MAOA and TH genes were between 3 and 4. The most highly expressed genes, all with a signal to noise greater than 10, were the CCL24, CHRNE, COMT, CXCR3, DRD4, MOXD1, PDE4B, and PLCB2. For the shrimp genes detected, most of the genes detected were between the signal to noise ratio of 2 to 3. The ratios for the CCND3, CHRM1, DRD5, HTR1B, HTR1E, HTR3A, PDE4C, PLCB1, PRC1, PRKACA, and SNCA genes were between 3 and 4. Finally, the most highly expressed genes, all with a signal to noise greater than 10, were the ACVR2B, AKT2, CCL19, CCL24, CHRM2, CHRM5, CHRNB2, CHRNB3, CHRNE, CYP2D6, DRD4, GFAP, HTR3A, IL16, IL18BP, PLCB2, TH, and TPH2. Discussion As noted earlier, invertebrate ganglia contain biogenic amines, serotonin and acetylcholine as validated by gene expression microarray (Mantione et al., 2009). Based on these findings, which validate the current results, one can surmise that these chemical messengers emerged early during the course of evolution and were maintained (Ottaviani et al., 1991, 1988, 1995, 2007; Ottaviani and Franceschi, 1996; Stefano et al., 2009). In another invertebrate, biogenic amines in Mytilus tissues have been demonstrated not only in the tissues but to exhibit pharmacological specificity in regard to tissue excitation and inhibition. Dopamine, serotonin and acetylcholine have been implicated in the regulation of cilia activity, smooth muscle regulation and foot control (Twarog and Cole, 1972; Hidaka and Twarog, 1977; Hidaka et al., 1977; Twarog et al., 1977; Catapane et al., 1978, 1979; Malanga and Young, 1978; Satchell and Twarog, 1978; Malanga and Poll, 1979; Aiello et al., 1981). These studies demonstrate that the respective receptor mediated systems, exhibiting high specificity to various related agonists and antagonists occur in specific tissues. 216 Table 5 Penaeus monodon dopamine and serotonin pathway genes present Dopamine receptors present DRD1 dopamine receptor D1 DRD2 dopamine receptor D2 DRD3 dopamine receptor D3 DRD4 dopamine receptor D4 DRD5 dopamine receptor D5 Serotonin receptors present HTR1A 5-hydroxytryptamine (serotonin) receptor 1A, G protein-coupled HTR1B 5-hydroxytryptamine (serotonin) receptor 1B, G protein-coupled HTR1D 5-hydroxytryptamine (serotonin) receptor 1D, G protein-coupled HTR1E 5-hydroxytryptamine (serotonin) receptor 1E, G protein-coupled HTR1F 5-hydroxytryptamine (serotonin) receptor 1F, G protein-coupled HTR2A 5-hydroxytryptamine (serotonin) receptor 2A, G protein-coupled HTR2B 5-hydroxytryptamine (serotonin) receptor 2B, G protein-coupled HTR2C 5-hydroxytryptamine (serotonin) receptor 2C, G protein-coupled HTR3A 5-hydroxytryptamine (serotonin) receptor 3A, ionotropic HTR3B 5-hydroxytryptamine (serotonin) receptor 3B, ionotropic HTR4 5-hydroxytryptamine (serotonin) receptor 4, G protein-coupled HTR5A 5-hydroxytryptamine (serotonin) receptor 5A, G protein-coupled HTR6 5-hydroxytryptamine (serotonin) receptor 6, G protein-coupled HTR7 5-hydroxytryptamine (serotonin) receptor 7, adenylate cyclase-coupled Dopamine and serotonin metabolism genes present COMT catechol-O-methyltransferase DBH dopamine beta-hydroxylase (dopamine beta-monooxygenase) DDC dopa decarboxylase (aromatic L-amino acid decarboxylase) TH tyrosine hydroxylase MAOA monoamine oxidase A MAOB monoamine oxidase B TDO2 tryptophan 2,3-dioxygenase TPH1 tryptophan hydroxylase 1 TPH2 tryptophan hydroxylase 2 Dopamine and serotonin transporters present SLC6A3 solute carrier family 6 (neurotransmitter transporter, dopamine), member 3 SLC6A4 solute carrier family 6 (neurotransmitter transporter, serotonin), member 4 Other dopamine and serotonin related genes present ALDH5A1 aldehyde dehydrogenase 5 family, member A1 BDNF brain-derived neurotrophic factor CALY calcyon neuron-specific vesicular protein CYP2D6 cytochrome P450, family 2, subfamily D, polypeptide 6 EPHB1 EPH receptor B1 GDNF glial cell derived neurotrophic factor GFAP glial fibrillary acidic protein MOXD1 monooxygenase, DBH-like 1 NR4A1 uclear receptor subfamily 4, group A, member 1 NR4A3 nuclear receptor subfamily 4, group A, member 3 PDYN Prodynorphin PTGS2 prostaglandin-endoperoxide synthase 2 (prostaglandin G/H synthase and cyclooxygenase) SLC18A1 solute carrier family 18 (vesicular monoamine), member 1 SLC18A2 solute carrier family 18 (vesicular monoamine), member 2 SYN2 synapsin II In previous and current research, measures are taken to confirm gene expression including TaqMan Probes and molecular methods as well as Western blotting (Hauton et al., 2005). The ability of microarray to corroborate with and/or confirm an expanse of previous research is demonstrated in this study of neurotransmitter molecules found in these invertebrates. Given the comprehensive nature of a single microarray chip and the accuracy and precision of the data expressed by these chips, this research indicates that the use of microarray could be independently sufficient for determining gene expression given the validating preexisting data (Nachmansohn, 1964; Nagabhushanam, 1966; 217 Table 6 Penaeus monodon signal transduction pathways genes present cAMP/PKA pathway activity ADCY1 adenylate cyclase 1 ADCY2 adenylate cyclase 2 ADCY3 adenylate cyclase 3 ADCY5 adenylate cyclase 5 CASP3 caspase 3, apoptosis-related cysteine peptidase CDK5 cyclin-dependent kinase 5 CREB1 cAMP responsive element binding protein 1 DUSP1 dual specificity phosphatase 1 FOS FBJ osteosarcoma oncogene MAPK1 mitogen-activated protein kinase 1 PPP1R1B protein phosphatase 1, regulatory (inhibitor) subunit 1B PRKACA protein kinase, cAMP-dependent, catalytic, alpha P13K/AKT pathway activity AKT1 thymoma viral proto-oncogene 1 AKT2 thymoma viral proto-oncogene 2 AKT3 thymoma viral proto-oncogene 3 GSK3A glycogen synthase kinase 3 alpha GSK3B glycogen synthase kinase 3 beta PIK3CA phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha PIK3CG phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit gamma PLA2 pathway activity ALOX12 arachidonate 12-lipoxygenase PDE10A phosphodiesterase 10A PDE4A phosphodiesterase 4A PDE4B phosphodiesterase 4B PDE4C phosphodiesterase 4C PDE4D phosphodiesterase 4D PLA2G5 phospholipase A2, group V PLC pathway activity ITPR1 inositol 1,4,5-trisphosphate receptor 1 PLCB1 phospholipase C, beta 1 PLCB2 phospholipase C, beta 2 PLCB3 phospholipase C, beta 3 G-protein coupled receptor regulation activity ADRBK1 adrenergic, beta, receptor kinase 1 ADRBK2 adrenergic, beta, receptor kinase 2 APP amyloid beta (A4) precursor protein ARRB1 arrestin, beta 1 ARRB2 arrestin, beta 2 GRK4 G protein-coupled receptor kinase 4 GRK5 G protein-coupled receptor kinase 5 GRK6 G protein-coupled receptor kinase 6 SNCA synuclein, alpha (non A4 component of amyloid precursor) SNCAIP synuclein, alpha interacting protein Hildebrand et al., 1974; Marder, 1974; Sullivan et al., 1977; Davis and Ocorr and Berlind, 1983; Cournil et al., 1984, 1994; Siwicki et al., 1987; Juorio and Sloley, 1988; Chiba and Tazaki, 1992; Ma et al., 1992; Ma and Weiger, 1993; Cournil et al., 1995; Rodriguez et al., 1995; Destoumieux et al., 1997, 1999; Mancillas et al., 1998; Scholz et al., 1998; Heinrich et al., 2000; Peeke et al., 2000; Antonsen and Paul, 2001; Harzsch, 2003; Pulver et al., 2003; Casares et al., 2005; Cheng et al., 2005; Tiu et al., 2005; Casares et al., 2006; Zhu et al., 2006; Chang et al., 2007; Brown-Peterson et al., 2008; Leelatanawit et al., 2008; Li and Brouwer, 2009; Tinikul et al., 2011). This preexisting data serves as a validation of the current microarray results. In summary, it appears neural communication, which occurs in invertebrate neural tissues, including those innervating peripheral tissues originated earlier in evolution and was maintained 218 Table 7 Penaeus monodon cell signaling genes present ACVR2B activin A receptor, type IIB BMP1 bone morphogenetic protein 1 CCL1 chemokine (C-C motif) ligand 1 CCL13 chemokine (C-C motif) ligand 13 CCL15 chemokine (C-C motif) ligand 15 CCL19 chemokine (C-C motif) ligand 19 CCL23 chemokine (C-C motif) ligand 23 CCL24 chemokine (C-C motif) ligand 24 CCNC cyclin C CCND3 cyclin D3 CCNL1 cyclin L1 CCR6 chemokine (C-C motif) receptor 6 CCR9 chemokine (C-C motif) receptor 9 CCRL2 chemokine (C-C motif) receptor-like 2 CDC14A CDC14 cell division cycle 14 homolog A CDC23 cell division cycle 23 homolog CDC25A cell division cycle 25 homolog A CDK6 cyclin-dependent kinase 6 CSF2RB colony stimulating factor 2 receptor, beta, low-affinity (granulocyte-macrophage) CXCL12 chemokine (C-X-C motif) ligand 12 CXCR3 chemokine (C-X-C motif) receptor 3 DAPK1 death-associated protein kinase 1 DOCK1 dedicator of cytokinesis 1 EPOR erythropoietin receptor GDF2 growth differentiation factor 2 GDF8 growth differentiation factor 8 IFNK interferon, kappa IL11RA interleukin 11 receptor, alpha IL15 interleukin 15 IL16 interleukin 16 IL18BP interleukin 18 binding protein IL23R interleukin 23 receptor IL31RA interleukin 31 receptor A IL7 interleukin 7 LATS1 LATS, large tumor suppressor, homolog 1 LEPR leptin receptor LIF leukemia inhibitory factor MOBK1B MOB kinase activator 1A MYH11 myosin, heavy polypeptide 11, smooth muscle NRP1 neuropilin 1 OSM oncostatin M PARD3 par-3 partitioning defective 3 homolog PARD6A par-6 partitioning defective 6 homolog alpha NAMPT nicotinamide phosphoribosyltransferase PF4 platelet factor 4 PIN1 peptidylprolyl cis/trans isomerase, NIMA-interacting 1 PRC1 protein regulator of cytokinesis 1 STAT1 signal transducer and activator of transcription 1 TLR2 toll-like receptor 2 TNFRSF11A tumor necrosis factor receptor superfamily, member 11A TNFRSF25 tumor necrosis factor receptor superfamily, member 25 219 Table 8 Penaeus monodon other neurotransmitter related genes present ACHE Acetylcholinesterase BCHE Butyrylcholinesterase CHRM1 cholinergic receptor, muscarinic 1 CHRM2 cholinergic receptor, muscarinic 2 CHRM3 cholinergic receptor, muscarinic 3 CHRM4 cholinergic receptor, muscarinic 4 CHRM5 cholinergic receptor, muscarinic 5 CHRNA1 cholinergic receptor, nicotinic, alpha 1 (muscle) CHRNA10 cholinergic receptor, nicotinic, alpha 10 (muscle) CHRNA2 cholinergic receptor, nicotinic, alpha 2 (muscle) CHRNA3 cholinergic receptor, nicotinic, alpha 3 (muscle) CHRNA4 cholinergic receptor, nicotinic, alpha 4 (muscle) CHRNA5 cholinergic receptor, nicotinic, alpha 5 (muscle) CHRNA6 cholinergic receptor, nicotinic, alpha 6 (muscle) CHRNA9 cholinergic receptor, nicotinic, alpha 9 (muscle) CHRNB1 cholinergic receptor, nicotinic, beta 1 (muscle) CHRNB2 cholinergic receptor, nicotinic, beta 2 (muscle) CHRNB3 cholinergic receptor, nicotinic, beta 3 (muscle) CHRNB4 cholinergic receptor, nicotinic, beta 4 (muscle) CHRND cholinergic receptor, nicotinic, delta (muscle) CHRNE cholinergic receptor, nicotinic, epsilon (muscle) CHRNG cholinergic receptor, nicotinic, gamma (muscle) COLQ collagen-like tail subunit (single strand of homotrimer) of asymmetric acetylcholinesterase CTRL chymotrypsin-like SLC18A3 solute carrier family 18 (vesicular monoamine), member 3 SLC5A7 solute carrier family 5 (choline transporter), member 7 SLC6A2 solute carrier family 6 (neurotransmitter transporter, noradrenalin), member 2 (Stefano, 1988). 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