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Table 1 Function of reference genes, primer sequences, optimal primer concentrations and reaction efficiencies of qPCR experiments.

From: Selection of reliable reference genes for qPCR studies on chondroprotective action

Symbol

Function

Primer sequence

nM

Efficiency

ACTB

Cytoskeletal structural protein

fw: CTGGAACGGTGAAGGTGACA

rv: AAGGGACTTCCTGTAACAATGCA

300

100

1.94 ± 0.01

GAPDH

Oxidoreductase in glycolysis and gluconeogenesis

fw: GGAGTCCACTGGCGTCTTCAC

rv: GAGGCATTGCTGATGATCTTGAGG

300

600

1.94 ± 0.01

B2M

Beta-chain of major histocompatibility complex class I molecules

fw: TGCTGTCTCCATGTTTGATGTATCT

rv: TCTCTGCTCCCCACCTCTAAGT

300

900

2.03 ± 0.04

HPRT1

Purine synthesis in salvage pathway

fw: TGACACTGGCAAAACAATGCA

rv: GGTCCTTTTCACCAGCAAGCT

300

900

1.94 ± 0.03

SDHA

Electron transporter in the TCA cycle and respiratory chain

fw: TGGGAACAAGAGGGCATCTG

rv: CCACCACTGCATCAAATTCATG

300

900

2.00 ± 0.01

YWHAZ

Signal transduction by binding to phosphorylate serine residues

fw: ACTTTTGGTACATTGTGGCTTCAA

rv: CCGCCAGGACAAACCAGTAT

600

600

1.98 ± 0.01

  1. Optimal primer concentrations were determined using a matrix of forward and reverse primers varying in concentration from 50 nM to 900 nM. Combinations that gave the lowest Ct value and the highest ΔRn value were selected. qPCR efficiencies for each primer pair were derived from standard curves (n = 3) using five-fold dilution series covering a 4 to 5 log dynamic range starting from one randomly selected undiluted cDNA sample of the untreated control group.