sphinganine 1-phosphate(in) <=> sphinganine 1-phosphate(out)
sphinganine 1-phosphate(in) <=> sphinganine 1-phosphate(out)
sphinganine 1-phosphate(in) <=> sphinganine 1-phosphate(out)
sphinganine 1-phosphate(in) <=> sphinganine 1-phosphate(out)