Identify the reaction of glycolysis which involves substrate level phosphorylation?

Glyceraldehyde – Phosphate $\to$ Glyceraldehyde bis – Phosphate

1, 3 bisphosphoglyceric acid $\to$3PGA

2– Phosphoglycerate $\to$  Phosphoenol - pyruvate

Glucose – 6 – Phosphate $\to$  Fructose – 6 – Phosphate