N-acetylneuraminate(in) <=> N-acetylneuraminate(out)
n-acetylneuraminate(in) <=> n-acetylneuraminate(out)
N-acetylneuraminate(in) <=> N-acetylneuraminate(out)
n-acetylneuraminate(in) <=> n-acetylneuraminate(out)