IDN
|
Description
|
1-3 |
x, y, z parameters in fractions of unit
cell |
4 |
individual isotropic thermal parameter
U |
5-10 |
anisotropic thermal parameters U11, U22,
U33, U12, U13, U23 |
11 |
population parameter |
12 |
anomalous population parameter |
13 |
neutron scattering factor |
14 |
atom label (24 characters) |
15 |
residue code (4 characters) |
|
char 1: remoteness indicator |
|
char 2: branch designator |
|
char 3: sub-branch designator |
|
char 4: alternate location indicator |
16 |
sequence code (4 characters) |
|
chars 1-3: least significant digits of
residue sequence number |
|
char 4: residue code |
17 |
data set number |
18 |
chain code (4 characters) |
|
chars 1-3: chain identifier |
|
char 4: most significant digit of residue
sequence number |
19 |
residue name (4 characters) |
20 |
atom serial number for Protein Data
Bank |
21 |
atom multiplicity for atoms in special
positions |
22 |
scattering factor pointer as a packet
sequence number of
scat |
23 |
thermal displacement parameter type
(0=overall;1=iso; 2=aniso) |
24 |
atom-group key for group refinements |
25 |
model-refinement key for refining different
model |
26 |
number of valence electrons - added in
MAPXCH |
50 |
specified coordinates flag (0=no; 1=
geometry fixed; 2=dummy) |
51 |
atom label of attached atom (for geometry
fixed hydrogen sites) |
52 |
number of attached hydrogen atoms
not present in
atom record |
55 |
refinement restrictions associated with this
site (8 characters). |
|
String may be made up of the following
flags: |
|
S special position constraint |
|
G rigid group refinement |
|
R riding atom site attached to non-riding
atom site |
|
D distance or angle restraint |
|
T thermal displacement constraint |
|
U Uiso
or Uij restraint due to rigid body |
|
P partial occupancy restraint |
56 |
special information about this site (40
characters) |
57 |
description of constraints to site
parameters (40 characters) |
58 |
description of restraints to site parameters
(40 characters) |
61-70 |
C111,C112,C122,C113,C123,C133,C222,C223,C233,C333,from
Valray/MAPXCH |
71-70 |
D1111,D1112,D1122,D1113,D1123,D1133,D1222,D1223,D1233,D1333,D2222,D2223,D2233,D2333,D3333 |
101-103 |
sigma x, sigma y, sigma z |
104 |
sigma Uiso |
105-110 |
sigma of U11, U22, U33, U12, U13,
U23 |
111 |
sigma of population parameter |
112 |
sigma of anomolous population
parameter |
113 |
sigma of neutron scattering |
161-170 |
sigma on
C111,C112,C122,C113,C123,C133,C222,C223,C233,C333
from Valray/MAPXCH |
171-170 |
D1111,D1112,D1122,D1113,D1123,D1133,D1222,D1223,D1233,D1333,D2222,D2223,D2233,D2333,D3333 |
210 |
atom number in dictionary
dict |
212 |
pointer to atom number in
atom of the back chain |
213 |
pointer to atom number in
atom of the furthest forward
chain |
214 |
mobility indicator |
215 |
KEY for group/non-group/slave |
300 |
6-char code for geometric constraint (same
as CALCAT) |
301 |
Bond distance to parent atom site |
302 |
Alpha 1 |
303 |
Alpha 2 |
310 |
24-char label of sites used in the geometric
constraint |
311 |
Encoded symop/translation (if not 1
555) |
312-317 |
as for 310 and 311 for three additional site
specifiers |
320-323 |
24-char label of sites in the same rigid
group (eg. methyl) |
401 |
electron population of core (from
Valray) |
402 |
electron population of
pseudo-core/pseudo-valence shell (from
Valray) |
403 |
electron population of valence shell
monopole (from Valray) |
404 |
no idea. but it looks important |
405 |
\kappa0 radial expansion coefficient for
monopole |
406 |
\alpha0 radial exponent for monopole |
407 |
\alpha1 radial coefficient for
dipole |
408 |
\kappa1 expansion coefficient for
dipole |
... |
etc. |
501-503 |
multipole coefficients Y11,Y1-1,Y10 |
504-508 |
multipole coefficients
Y22,Y2-2,Y21,Y2-1,Y20 |
509-515 |
multipole coefficients
Y33,Y3-3,Y32,Y3-2,Y31,Y3-1,Y30 |
... |
etc. |