Table 1. Primers used for gene expression analysis in the study.
| Primer | Sequence (5′– 3′) | Tm (°C) | Products Length (bp) |
| C1F | GGTGTGAACGCCATGCTGAG | 62°C | 323 bp |
| C1R | GTGCACACCACATCATCGGC | ||
| C2F | ACCTCCACCACTGTGCGAAC | 58°C | 293 bp |
| C2R | CGGAAGTCGTCTCAGGCAGT | ||
| R1F | AGAGATCGTGCAGGATGGCG | 58°C | 383 bp |
| R1R | GGTGGGTATGCGTTTCGGTC | ||
| R2F | GGCCACCATCATGACGAAGG | 62°C | 342 bp |
| R2R | ACCCACTGCTTCCAGCCACG | ||
| R4F | TCCGTCTTCTGAGCAACTGG | 62°C | 351 bp |
| R4R | GCCTGCTTTGACAGTAACCA | ||
| R7F | TCTTCTCAGCAGCGACAACT | 62°C | 377 bp |
| R7R | ATCAGGCTCTCTGGAAGGTT | ||
| C2-GF | ACTCAGCGTCCAGTGTTCTAG | 61°C | 512 bp |
| C2-GR | CGGAAGTCGTCTCAGGCAGT | ||
| C2-AI-F | TCGCCACCATGCCTAACTTTTCTGGCAAC | 55°C | 460 bp |
| C2-AI-R | CTCTCGGACGTAGACCCTG | ||
| MyoD-GF | GACAGGGAGGAGGGGTAGAG | 61.4°C | 1166 bp |
| MyoD-GR | GAAGAACCAGGGACACCATC | ||
| GAPDH-F | GGTGAAGGTCGGTGTGAACG | 60°C | 233 bp |
| GAPDH-R | CTCGCTCCTGGAAGATGGTG |
C1F, C1R; C2F, C2R; R1F, R1R; R2F, R2R; R4F, R4R; R7F, R7R: primers used for determining the expression of CRABP1, CRABP2, CRBP1, CRBP2, RBP4, RBP7 during C2C12 differentiation time; C2-GF, C2-GR and C2-AI-F, C2-AI-R: primers used for construction of the CRABP2 over-expression vector; MyoD-GF, MyoD-GR: primers used for construction of the MyoD over-expression vector; GAPDH-F, GAPDH-R: primers used as an internal control.