Table:
Mg2+

Co2+

km (μM)

Vmax (pmol/min/108 cells)

km (μM)

Vmax (pmol/min/108 cells)

Ki(Mg2+) (μM)

MgtE

-

-

82[4] (at 37 °C)

354[4] (at 37 °C)

50[4] (at 37 °C)

CorA

15[38] (at 20 °C)

250[38] (at 20 °C)

30[2] (at 22 °C)

500[2] (at 22 °C)

10[2] (at 22 °C)

Can you extract and list the values from these specific columns in the table?
column 6
column 5

Represent the cells in a column with the JSON format {"column_id":"<column index>", "cell_list":"<a list of cells in this column>"}. For instance, {"column_id":"5", "cell_list": ["152", "UN", "one last kiss"]}.

The extracted column contents are listed below.
For column 6: {"column_id": "6", "cell_list": ['', 'ki(mg2+)', '50', '10']}
For column 5: {"column_id": "5", "cell_list": ['', 'vmax', '354', '500']}