Table 4.
Most Abundant Genes Expressed in the Embryonic Zebrafish Heart
| Identity | Frequency (%) | Identity | Frequency (%) |
| Cell division (n = 2) | Ribosomal protein S8 | 10 | |
| Nonhistone chromosomal protein HMG-17 | 6 | Ribosomal protein L17 | 10 |
| Prothymosin alpha | 6 | Ribosomal protein L8 | 10 |
| Cell signaling/communication (n = 4) | Ribosomal protein L41 | 10 | |
| Parvalbumin, beta | 26 | Ribosomal protein L19 | 9 |
| Calmodulin | 11 | Ribosomal protein L6 | 9 |
| Bone morphogenetic protein 4 precursor (BMP4) | 9 | Ribosomal protein L11 | 8 |
| Receptor for activated protein kinase C (RACK1) | 6 | Elongation factor 2 | 8 |
| Cell structure/motility (n = 22) | Ribosomal protein L27 | 7 | |
| Myosin heavy chain, fast skeletal muscle | 62 | Ribosomal protein L3 | 7 |
| Actin, alpha skeletal | 53 | Ribosomal protein S2 | 7 |
| Actin, beta | 42 | Ribosomal protein S18 | 7 |
| Keratin | 37 | Ribosomal protein L13 | 7 |
| Cytokeratin S | 35 | Ribosomal protein L13A | 7 |
| Myosin light chain 2, fast skeletal muscle (mlc2f) | 16 | Ribosomal protein S3 | 7 |
| Tropomyosin, alpha skeletal muscle | 14 | Homeobox protein LIM-3 | 6 |
| Cytokeratin II | 14 | Ubiquitin | 6 |
| Cytokeratin 8 | 11 | Ribosomal protein L18a | 6 |
| Myosin light chain 1a, fast skeletal | 10 | Ribosomal RNA large subunit | 6 |
| Cytokeratin type I (cytl) | 10 | Ribosomal protein L10 | 6 |
| Collagen alpha-2 type I | 9 | Ribosomal protein S17 | 6 |
| Myosin light chain 3, fast skeletal | 9 | Ribosomal protein S19 | 6 |
| Actin, alpha cardiac | 9 | Acidic ribosomal protein P2 | 6 |
| Tubulin, alpha | 8 | Ribosomal protein SA (P40) | 6 |
| Keratin, type II | 7 | Ribosomal protein S20 | 6 |
| Myosin regulartory light chain 2A, atrial muscle | 6 | Ribosomal protein L22 | 6 |
| Desmin | 5 | Ribosomal protein S9 | 6 |
| Fibronectin | 5 | Ribosomal protein S10 | 6 |
| Keratin, type II (58 kD) | 5 | Ribosomal protein L32 | 6 |
| Myosin heavy chain, alpha cardiac | 5 | Ribosomal protein L1a | 6 |
| Myosin light chain 20-kD (MLC-2) | 5 | Ribosomal protein S11 | 6 |
| Cell/organism defense (n = 10) | Ribosomal large subunit 26S | 6 | |
| Globin, beta embryonic 1 (bE1) | 31 | Ribosomal protein L18 | 5 |
| Heat shock cognate (hsc70) | 31 | Ribosomal protein S14 | 5 |
| Globin 2, alpha-type embryonic | 15 | Ribosomal protein L1 (L4) | 5 |
| zfY1–A cold shock protein | 11 | Ribosomal protein L5 | 5 |
| Heat shock protein hsp90beta | 10 | Ribosomal protein L14 | 5 |
| Creatine kinase M2-CK | 6 | Ribosomal protein L9 | 5 |
| Globin, alpha | 6 | Ribosomal protein S12 | 5 |
| Globin, alpha-type embryonic | 6 | Metabolism (n = 9) | |
| Globin, beta | 6 | ADP/ATP carrier protein | 19 |
| Glutathione S-transferase | 5 | Cytochrome b | 18 |
| Gene/protein expression (n = 50) | NADH ubiquinone oxidoreductase subunit 4L | 12 | |
| Elongation factor 1 alpha | 43 | Apolipoprotein A-I precursor protein | 11 |
| Acidic ribosomal phosphoprotein P0 | 16 | Cytochrome C oxidase subunit III | 8 |
| Cathepsin L | 15 | Apolipoprotein E precursor protein | 7 |
| Elongation factor l-gamma | 14 | NADH dehydrogenase subunit I | 7 |
| Ribosomal protein S7 | 13 | ATP synthetase beta-subunit | 5 |
| Ribosomal protein L7A | 13 | ATPase, calcium, sarcoplasmic/endoplasmic reticulum 1 B | 5 |
| Polyadenylate-binding protein | 12 | Isocitrate dehydrogenase | 5 |
| Ribosomal protein S4 isoform | 11 | Unclassified (n = 3) | |
| Ribosomal protein S6 | 11 | Translationally controlled tumor protein P23 (TCTP) | 12 |
| Ribosomal protein L30 | 11 | Ependymin beta and gamma chains (Epd) | 7 |
| Ribosomal protein S3A | 10 | SMT3A protein | 7 |
| Ribosomal protein L4 | 10 |
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Genes are categorized in seven different functional categories and are listed in descending order according to their frequencies.
