Anti-His6 antibodies

[Heikki Heimo]

Hi there,
Please give comments on any commercial anti-His6 antibodies you have
tried, esp. Qiagene's Mabs: Which brand works best (in western)?  Do
they generally work as well as promised? Any tips on sample
formulation etc. 
We are making secreted dimeric protein with N-term 6xHis in Pichia.
Please reply at least on E-mail; I'm an infrequent reader so sorry if
this is an old bone already.
Cheers,
Jussi Heimo