>sp|Q58740|GLNK2_METJA Nitrogen regulatory protein GlnK2 OS=Methanocaldococcus jannaschii GN=glnK2 MKKVEAIIRPEKLEIVKKALSDAGYVGMTVSEVKGRGVQGGIVERYRGREYIVDLIPKVK IELVVKEEDVDNVIDIICENARTGNPGDGKIFVIPVERVVRVRTKEEGRDVL