;pep_z_hsqc.bv
;Bruker AMX version
;2D 15N-1H Sensitivity-enhanced HSQC
;two experiments, due to echo-antiecho
;15N evolution phases
;last modified 9/15/95 by BFV
;Arthur G. Palmer III et al., JMR (1994), v. 104, 298-302.
;sequence by Brian Volkman, volkman@nmrfam.wisc.edu
;* see also nopephs3d.bv, 3D NOESY-HSQC version*
;BMRB Pulse Sequence Accession Number: 4

d6=3u
d8=aq
d11=50m
d12=5m
d25=p3-p1

1 ze
;*************** first experiment ************
;**********************************************
2 d12*6
3 10u hl2
  p18 ph0
  10u hl1
  p1 ph1
  p21 ph4       ;Messerle pulse 0.5-1.5ms
  d4 dbhi
  (d25 p1*2 ph2) (p3*2 ph5):f3
  d4
  p22 ph1         ;Messerle pulse = 1.8 msec
  (d25 p1 ph2) (p3 ph5):f3        ;1H 90, X 90 (w/quad. inc.)
  d0
  (p1 ph2 d6 p1*2 ph1 d6 p1 ph2)          ;refocusing composite 180 1H
  d0
  (d25 p1 ph11) (p3 ph14):f3
  d4
  (d25 p1*2 ph12) (p3*2 ph14):f3
  d4
  (d25 p1 ph12) (p3 ph15):f3
  d4
  (d25 p1*2 ph12) (p3*2 ph15):f3
  d4 dblo
  p1 ph13
  go=2 ph31 cpdb        
d11 dbo wr #0 if #0 zd            ;write to disk
;**************** second experiment ***********  
4 d12*6
  10u hl2
  p18 ph0
  10u hl1
  p1 ph1
  p21 ph4       ;Messerle pulse 0.5-1.5ms
  d4 dbhi
  (d25 p1*2 ph2) (p3*2 ph5):f3
  d4
  p22 ph1         ;Messerle pulse = 1.8 msec
  (d25 p1 ph2) (p3 ph5):f3        ;1H 90, X 90 (w/quad. inc.)
  d0
  (p1 ph2 d6 p1*2 ph1 d6 p1 ph2)          ;refocusing composite 180 1H
  d0
  (d25 p1 ph11) (p3 ph24):f3
  d4
  (d25 p1*2 ph12) (p3*2 ph24):f3
  d4
  (d25 p1 ph12) (p3 ph25):f3
  d4
  (d25 p1*2 ph12) (p3*2 ph25):f3
  d4 dblo
  p1 ph13
  go=4 ph31 cpdb        
d11 dbo wr #0 if #0 zd            ;write to disk
;***********************************************
d12 ip31
d12 ip31
d12 ip5
d12 ip5
d12 id0
lo to 3 times l3
exit 

  ph0=1
  ph1=0
  ph2=3
  ph3=0 2
  ph4=1
  ph5=0 0 2 2
  ph11=1 0
  ph12=0 3
  ph13=3 2
  ph14=0 1 
  ph24=2 1
  ph15=1 2
  ph25=1 0
  ph31=0 2 2 0