Contacts of the strand formed by residues 1254 - 1268 (chain A) in PDB entry 2QOM


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with LYS1254 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1232A  ASP      3.5     4.5    -      -       -      +
   1233A  LEU*     4.5    18.8    -      -       +      -
   1250A  ILE*     4.6     2.3    -      -       -      +
   1252A  GLY      3.9     0.2    -      -       -      -
   1253A  GLU*     1.3    91.0    -      -       +      +
   1255A  ASP*     1.3    62.9    +      -       -      +
   1285A  LYS*     2.9    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1230A  GLN      4.6     0.2    -      -       -      -
   1231A  PHE*     3.4     5.2    -      -       -      +
   1232A  ASP*     3.3    42.3    +      -       -      +
   1250A  ILE*     4.0    10.3    -      -       +      +
   1254A  LYS*     1.3    77.7    -      -       -      +
   1256A  SER*     1.3    70.0    +      -       -      +
   1257A  ARG*     2.8    26.5    +      -       -      +
   1284A  GLY*     3.7     2.6    -      -       -      -
   1285A  LYS*     2.8    39.2    +      -       +      +
   1286A  TYR*     3.2    18.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1229A  TYR*     6.4     1.3    -      -       -      -
   1230A  GLN      3.3     5.8    -      -       -      -
   1231A  PHE*     3.8    26.0    -      -       -      -
   1255A  ASP*     1.3    81.0    +      -       -      +
   1257A  ARG*     1.3    63.6    +      -       -      +
   1283A  PHE*     3.5     8.7    -      -       -      +
   1284A  GLY*     3.4    16.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1229A  TYR*     3.5    11.3    -      -       -      +
   1230A  GLN*     2.9    63.7    +      -       +      +
   1232A  ASP*     3.2    36.4    +      -       -      -
   1250A  ILE*     5.1     2.0    -      -       -      +
   1255A  ASP*     2.8    22.5    +      -       -      +
   1256A  SER*     1.3    74.4    -      -       -      +
   1258A  MET*     1.3    60.7    +      -       -      +
   1259A  LEU*     4.7     6.5    -      -       +      -
   1281A  SER*     3.5    22.4    -      -       -      +
   1282A  ALA      3.6     4.7    -      -       -      +
   1283A  PHE*     5.6     0.4    -      -       -      -
   1284A  GLY*     3.7    11.7    -      -       -      -
   1286A  TYR*     2.8    48.9    +      -       -      +
   1287A  ASN*     3.7     6.7    -      -       -      +
   1288A  VAL*     4.8     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET1258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1227A  LEU*     4.0    10.3    -      -       +      -
   1228A  GLY      3.6    11.0    -      -       -      +
   1229A  TYR*     4.2    14.3    -      -       +      -
   1257A  ARG*     1.3    71.9    -      -       -      +
   1259A  LEU*     1.3    65.4    +      -       -      +
   1260A  MET*     3.3    41.2    -      -       +      +
   1281A  SER*     3.1     8.7    -      -       -      -
   1282A  ALA*     3.0    36.1    +      -       +      +
   1283A  PHE*     4.0    27.3    -      -       +      +
   1210B  VAL*     3.8    28.7    -      -       +      -
   1225B  ALA*     4.9    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1259 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1205A  ARG*     3.8    32.3    -      -       +      +
   1226A  GLY      5.3     0.2    -      -       -      -
   1227A  LEU*     3.3    15.4    -      -       -      +
   1228A  GLY*     2.8    41.6    +      -       -      +
   1229A  TYR      4.7     2.5    -      -       -      -
   1230A  GLN*     4.0    37.2    -      -       +      +
   1257A  ARG*     4.7     4.0    -      -       +      -
   1258A  MET*     1.3    74.1    -      -       -      +
   1260A  MET*     1.3    61.8    +      -       -      +
   1261A  SER*     6.3     0.4    -      -       -      -
   1279A  GLU*     6.4     1.6    -      -       +      -
   1280A  LYS      4.0     3.8    -      -       -      +
   1281A  SER*     4.0    20.2    -      -       -      -
   1288A  VAL*     5.9     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET1260 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1226A  GLY      3.7     4.9    -      -       -      -
   1227A  LEU*     4.1     7.2    -      -       +      -
   1258A  MET*     3.3    34.5    -      -       +      +
   1259A  LEU*     1.3    74.2    -      -       -      +
   1261A  SER*     1.3    63.2    +      -       -      +
   1279A  GLU*     3.5     2.9    -      -       -      +
   1280A  LYS*     3.1    60.8    +      -       +      +
   1281A  SER      4.9     0.7    -      -       -      -
   1282A  ALA*     4.9    13.5    -      -       -      -
   1227B  LEU*     5.6     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1261 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1209A  ASP*     4.8     6.6    +      -       -      -
   1225A  ALA*     3.3     5.4    -      -       -      +
   1226A  GLY*     3.0    44.2    +      -       -      +
   1259A  LEU*     6.3     0.7    -      -       -      -
   1260A  MET*     1.3    75.5    -      -       -      +
   1262A  VAL*     1.3    63.5    +      -       -      +
   1277A  GLU*     3.8    11.9    +      -       -      -
   1278A  PHE      3.4     6.5    -      -       -      -
   1279A  GLU*     3.8    20.9    -      -       -      -
   1227B  LEU*     4.1     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1262 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1224A  ARG      3.5    12.8    -      -       -      +
   1225A  ALA*     4.2     2.7    -      -       +      +
   1261A  SER*     1.3    76.7    -      -       -      +
   1263A  GLY*     1.3    63.3    +      -       -      +
   1264A  LEU*     5.9     2.0    -      -       +      -
   1277A  GLU*     3.5     4.3    -      -       -      -
   1278A  PHE*     2.8    54.7    +      -       +      +
   1227B  LEU*     6.1     1.1    -      -       +      -
   1229B  TYR*     4.6     7.4    -      -       -      +
   1258B  MET*     4.6    16.2    -      -       +      -
   1283B  PHE*     5.5     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1263 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1223A  ALA*     3.6     1.0    -      -       -      -
   1224A  ARG*     2.7    50.1    +      -       -      +
   1262A  VAL*     1.3    77.9    -      -       -      +
   1264A  LEU*     1.3    72.6    +      -       -      +
   1276A  LEU*     3.2    13.7    -      -       -      -
   1277A  GLU*     3.7     8.7    +      -       -      -
   1278A  PHE*     5.9     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1264 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1221A  VAL*     4.9    17.0    -      -       +      -
   1222A  THR      3.4     8.1    -      -       -      +
   1223A  ALA*     5.0     7.0    -      -       +      -
   1224A  ARG*     5.0     2.9    -      -       -      -
   1262A  VAL*     5.9     2.5    -      -       +      -
   1263A  GLY*     1.3    87.3    -      -       -      +
   1265A  ASN*     1.3    68.5    +      -       -      +
   1266A  ALA*     4.0     4.5    -      -       +      +
   1274A  PHE*     5.7    10.5    -      -       +      -
   1275A  GLY*     3.1    23.0    -      -       -      -
   1276A  LEU*     2.8    33.8    +      -       +      +
   1277A  GLU*     5.2     1.0    -      -       -      +
   1278A  PHE*     6.4     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN1265 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1026A  ASN*     3.3    19.9    +      -       -      +
   1030A  GLY*     4.3     2.4    -      -       -      -
   1031A  ASP*     3.3    40.7    -      -       +      +
   1166A  TRP*     5.3     0.2    -      -       -      -
   1220A  LYS      3.8     0.7    -      -       -      +
   1221A  VAL*     3.3     3.7    +      -       -      -
   1222A  THR*     2.8    47.6    +      -       -      +
   1224A  ARG*     3.0    30.9    +      -       -      +
   1264A  LEU*     1.3    82.6    +      -       -      +
   1266A  ALA*     1.3    62.6    +      -       -      +
   1267A  GLU*     5.2     0.3    -      -       -      +
   1274A  PHE      3.9     2.4    +      -       -      -
   1275A  GLY*     4.3     8.3    -      -       -      -
   1295A  ASN*     4.9     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1266 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1031A  ASP*     6.1     0.2    -      -       -      +
   1220A  LYS      3.5     4.9    -      -       -      -
   1221A  VAL*     4.2    14.6    -      -       +      -
   1264A  LEU*     4.0     4.2    -      -       +      +
   1265A  ASN*     1.3    76.9    -      -       -      +
   1267A  GLU*     1.3    63.4    +      -       -      +
   1268A  ILE*     5.3     2.7    -      -       +      -
   1273A  ARG*     3.6     8.0    -      -       -      +
   1274A  PHE*     2.7    75.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1267 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1031A  ASP*     5.6     4.3    -      -       -      +
   1218A  ASP      3.6     1.7    -      -       -      +
   1219A  TRP*     3.2     6.9    -      -       -      +
   1220A  LYS*     2.8    71.7    +      -       +      +
   1265A  ASN      5.2     0.4    -      -       -      +
   1266A  ALA*     1.3    77.3    -      -       -      +
   1268A  ILE*     1.3    63.5    +      -       -      +
   1269A  ARG      4.2    10.7    -      -       -      +
   1272A  VAL      4.0     3.4    -      -       -      -
   1273A  ARG*     4.1    41.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1268 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1218A  ASP*     4.1     1.1    -      -       +      -
   1219A  TRP*     4.7     8.1    -      -       +      +
   1266A  ALA*     5.3     0.9    -      -       +      -
   1267A  GLU*     1.3    79.8    -      -       -      +
   1269A  ARG*     1.3   100.0    +      -       +      +
   1270A  ASP      3.2     3.6    +      -       -      -
   1271A  ASN      3.8     0.3    +      -       -      -
   1272A  VAL*     2.8    47.5    +      -       +      +
   1274A  PHE*     4.5    23.3    -      -       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il