Just search pubmed and I am sure you will get answer.
Moreover to know what's going on on the mitochondira you have to use electron microscopic immunocytochemical study to see for example Mitochondria complex I-V and/or in situ hybridization by using indirect colloidal gold decoration.
The Gene Ontology system can be useful for this purpose. It may seem indirect to go from reaction to enzyme to gene, but the gene-level databases are the most comprehensive. Your example is associated with accession identifier GO:0004618, phosphoglycerate kinase activity. The next step is to search for related terms (see link). However, as mentioned previously, a literature search is the most sensible approach if you are only interested in a single reaction. The database route becomes important when you have a large set of proteins to research.