It does not have the F, which is what gived the mixolydian mode it's "dominant" or bluesy characteristic.
If I were going to use a mixolydian "pentatonic" scale, I would use G, A, B, D, F, G. This has the 3rd and 7th notes of the G7(dom) chord.
Play both of them over a G7 and you'll hear what I mean.
My opinion.
Peace,
-Rick
Play what you hear
Listen to what you play
Does it sound good?
Listen to what you play
Does it sound good?