AMBER: makeDIST_RST computation of r3 value with IAT < 0

From: Ryan Pavlovicz <pavlovicz.7.osu.edu>
Date: Wed, 3 Dec 2008 18:13:32 -0500

Hi again,

While preparing an NMR restraint file with an 8 column input file to the
makeDIST_RST program, i notice that the r3 values that i provide are altered
in the cases of IAT(1) < 0 or IAT(2) < 0. I presume this is done to
compensate for the distance averaging done during group assignment, but can
anyone describe how makeDIST_RST determines the r3 output value based on the
input? I cannot find this described in the AMBER User Manual. Thanks a
lot,

ryan

--------------------------------------------------------------

some example inputs / outputs:

input1:
308 ARG O 312 ALA N 2.70 *3.10*
output1:
# 308 ARG O 312 ALA N 2.70 3.10
&rst
ixpk= 0, nxpk= 0, iat=4657,4714, r1= 2.20, r2= 2.70, r3= *3.10*, r4= 3.60,
&end

input2:
62 ASP QB 281 ALA HA 1.80 *3.50*
output2:
# 62 ASP QB 281 ALA HA 1.80 3.50
&rst
ixpk= 0, nxpk= 0, iat= -1,4236, r1= 1.30, r2= 1.80, r3= *3.93*, r4= 4.43,
igr1= 905, 906,
&end

input3:
62 ASP HA 281 ALA QB 1.80 *4.00*
output3:
# 62 ASP HA 281 ALA QB 1.80 4.00
&rst
ixpk= 0, nxpk= 0, iat= 903, -1, r1= 1.30, r2= 1.80, r3= *4.80*, r4= 5.30,
igr2=4238,4239,4240,
&end

-----------------------------------------------------------------------
The AMBER Mail Reflector
To post, send mail to amber.scripps.edu
To unsubscribe, send "unsubscribe amber" (in the *body* of the email)
      to majordomo.scripps.edu
Received on Fri Dec 05 2008 - 18:39:49 PST
Custom Search