. 2013 Oct 16;4:408. doi: 10.3389/fpls.2013.00408

Table 1.

Examples of Cellerator mass action arrow form expansion, from the base from A → B.

Arrow form^*	Expansion
`e₁X₁ + e₂X₂ + …` ⇄	`e₁X₁ + e₂X₂ + … → f₁Y₁ + f₂Y₂ + …`
`f₁Y₁ + f₂Y₂ + …`	`f₁Y₁ + f₂Y₂ + … → e₁X₁ + e₂X₂ + …`
$X \overset{ℰ}{⇄} Y$	`X + ℰ ⇄ X_ℰ`
	`X_ℰ ⇄ Y + ℰ`
$X \underset{ℱ}{\overset{ℰ}{⇄}} Y$	$X \overset{ℰ}{⇄} Y and Y \overset{ℱ}{⇄} X$
$X \overset{ℰ}{⇌} Y$	`X + ℰ ⇄ X_ℰ`
	`X_ℰ ⇄ Y_ℰ`
	`Y_ℰ ⇄ Y + ℰ`
$\overset{ℰ}{X ⇄ Y ⇄ Z ⇄ \dots}$	$X \overset{ℰ}{⇄} Y, Y \overset{ℰ}{⇄} Z, \dots$
$\underset{ℱ}{\overset{ℰ}{X ⇄ Y ⇄ Z \dots}}$	$X \underset{ℱ}{\overset{ℰ}{⇄}} Y, Y \underset{ℱ}{\overset{ℰ}{⇄}} Z, \dots$

The complete syntax of an arrow form is {arrowform, k₁,…} where k₁,… is a sequence of numeric or symbolic rate constants. The subscripts e_i and f_j are stoichiometries.