Contacts of the strand formed by residues 1163 - 1171 (chain A) in PDB entry 2XT6


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 GLU1163 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1110A  THR*     3.3     6.2    +      -       -      +
   1111A  ARG*     3.1    36.8    +      -       +      +
   1112A  LEU      3.0    24.3    +      -       -      +
   1161A  VAL*     3.4     3.7    -      -       -      +
   1162A  LYS*     1.4    83.1    -      -       +      +
   1164A  LYS*     1.3    63.8    +      -       -      +
   1165A  PHE*     3.7    31.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1112A  LEU*     3.3    15.5    -      -       +      +
   1114A  LEU*     4.7     5.6    -      -       +      -
   1155A  LEU*     3.8    33.2    -      -       +      -
   1161A  VAL*     4.0    31.8    +      -       +      +
   1163A  GLU*     1.3    77.2    -      -       -      +
   1165A  PHE*     1.3    65.7    +      -       -      +
   1190A  ASP      5.3     0.8    +      -       -      -
   1191A  HIS*     2.8    34.5    +      -       -      +
   1192A  PHE*     4.2     9.2    -      -       +      -
   1194A  GLY      4.3     4.2    +      -       -      +
   1195A  LEU*     3.6    18.8    -      -       +      +
   1196A  LYS*     3.2    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1111A  ARG*     4.0    33.0    -      -       +      -
   1112A  LEU      2.9     7.2    +      -       -      -
   1113A  LEU*     3.5    12.5    -      -       +      -
   1114A  LEU*     2.8    33.0    +      -       -      +
   1163A  GLU*     3.7    45.1    -      -       +      -
   1164A  LYS*     1.3    76.5    -      -       -      +
   1166A  TRP*     1.3    55.5    -      -       -      +
   1167A  VAL*     3.7     1.7    +      -       +      -
   1195A  LEU*     3.9     4.7    -      -       -      -
   1196A  LYS*     3.4    33.4    -      -       +      +
   1197A  ARG      4.6     0.9    -      -       -      -
   1198A  ILE*     3.6    38.1    -      -       +      -
   1224A  THR      6.1     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP1166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1041A  MET*     6.1     1.3    -      -       +      -
   1114A  LEU*     3.1    37.0    -      -       +      -
   1115A  THR      3.6    27.4    -      -       -      -
   1116A  SER*     3.9    14.4    -      -       -      -
   1140A  ILE*     3.7    20.9    -      -       +      -
   1165A  PHE*     1.3    71.4    -      -       -      +
   1167A  VAL*     1.4    62.6    +      -       -      +
   1168A  GLN*     3.0    39.3    +      -       +      +
   1176A  ALA*     3.6    21.5    -      -       +      -
   1177A  TRP*     3.7    43.8    -      +       +      +
   1180A  PHE*     3.6    24.5    -      +       +      -
   1184A  LEU*     5.2     3.1    -      -       +      -
   1195A  LEU*     3.8    10.6    -      -       +      +
   1196A  LYS      2.9     8.3    +      -       -      -
   1197A  ARG*     3.6     2.6    -      -       +      +
   1198A  ILE      2.8    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1113A  LEU*     3.9    38.6    -      -       +      -
   1114A  LEU      2.8    12.9    +      -       -      +
   1115A  THR*     2.7    33.1    +      -       -      +
   1116A  SER      4.6     0.7    +      -       -      +
   1119A  ILE*     4.0    11.4    -      -       +      -
   1123A  LEU*     4.1    16.8    -      -       +      -
   1165A  PHE      4.0     3.4    -      -       -      +
   1166A  TRP*     1.4    78.8    -      -       -      +
   1168A  GLN*     1.3    64.4    +      -       -      +
   1198A  ILE*     3.3    20.4    -      -       +      +
   1221A  ILE*     3.7    26.7    -      -       +      -
   1225A  ALA*     4.6     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1115A  THR*     4.8     0.7    -      -       -      -
   1116A  SER      6.1     0.4    -      -       -      -
   1119A  ILE*     4.3     8.7    -      -       -      -
   1166A  TRP*     3.0    23.4    +      -       +      +
   1167A  VAL*     1.3    77.0    -      -       -      +
   1169A  GLU*     1.3    59.9    +      -       -      +
   1170A  GLU*     2.9    35.6    +      -       -      +
   1171A  PRO      3.2     4.9    +      -       -      -
   1172A  ALA*     4.4     0.2    -      -       -      +
   1174A  GLN      2.9    21.6    +      -       -      -
   1176A  ALA      3.1     8.5    +      -       -      -
   1177A  TRP*     2.9    36.5    +      -       +      +
   1197A  ARG*     5.4     0.4    -      -       +      -
   1198A  ILE      3.0     7.3    +      -       -      +
   1199A  SER*     3.3    38.6    +      -       -      -
   1221A  ILE*     3.5     8.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1011A  HIS*     5.6     0.2    -      -       -      -
   1012A  GLY*     3.9     3.5    -      -       -      -
   1013A  HIS*     3.0    37.7    +      -       +      -
   1118A  LYS*     2.7    43.3    +      -       -      +
   1119A  ILE*     3.9    26.8    -      -       +      +
   1122A  GLU*     4.0     1.4    -      -       -      +
   1168A  GLN*     1.3    73.7    -      -       -      +
   1170A  GLU*     1.3    70.0    +      -       -      +
   1200A  ARG*     2.7    45.1    +      -       -      +
   1218A  GLN*     3.0    20.2    +      -       -      +
   1221A  ILE*     3.8     3.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU1170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1011A  HIS*     2.9    34.8    +      -       +      +
   1013A  HIS*     3.5    19.2    -      -       -      +
   1022A  SER*     5.2     3.8    -      -       -      +
   1025A  ILE*     4.1     6.4    -      -       -      +
   1026A  GLU*     5.4     0.2    -      -       -      +
   1041A  MET*     4.7     8.3    -      -       -      +
   1168A  GLN*     2.9    34.0    +      -       -      +
   1169A  GLU*     1.3    85.7    +      -       -      +
   1171A  PRO*     1.4    74.8    -      -       +      +
   1174A  GLN*     4.3     2.9    -      -       +      +
   1175A  GLY*     3.7    36.8    -      -       -      +
   1176A  ALA      4.6     0.7    +      -       -      -
   1199A  SER*     3.4    12.8    -      -       -      -
   1200A  ARG*     3.5     1.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO1171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1013A  HIS*     4.0     4.3    -      -       +      -
   1168A  GLN*     3.2     0.2    +      -       -      -
   1169A  GLU      4.5     0.4    -      -       -      +
   1170A  GLU*     1.4    89.7    -      -       +      +
   1172A  ALA*     1.4    55.0    +      -       -      +
   1173A  ASN*     3.1    18.4    -      -       -      +
   1174A  GLN*     2.7    54.7    +      -       -      +
   1200A  ARG*     3.6     5.6    -      -       +      +
   1201A  ARG      3.2    18.4    -      -       -      +
   1203A  MET*     3.7    28.0    -      -       +      +
   1206A  PRO      3.4    23.8    -      -       -      +
----------------------------------------------------------
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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