Contacts of the helix formed by residues 1181 - 1201 (chain O) in PDB entry 2X4Y


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 LYS1181 (chain O).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1180O  ARG*     1.3   114.5    -      -       -      +
   1182O  SER*     1.3    67.2    +      -       -      +
   1183O  ASN*     3.3    20.0    -      -       -      +
   1184O  ILE*     3.1    14.5    +      -       +      +
   1185O  ARG*     3.0    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1182 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1185C  ARG*     4.8    10.9    +      -       -      -
   1181O  LYS*     1.3    71.3    -      -       -      +
   1183O  ASN*     1.3    59.9    +      -       -      +
   1185O  ARG*     3.1    29.3    +      -       -      +
   1186O  LYS*     2.9    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN1183 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1181O  LYS*     3.3    23.6    -      -       -      +
   1182O  SER*     1.3    75.8    +      -       -      +
   1184O  ILE*     1.3    77.3    +      -       -      +
   1186O  LYS*     3.5     9.8    +      -       -      +
   1187O  SER*     3.2    22.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1184 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1097O  PRO*     3.4    39.0    -      -       +      -
   1179O  GLY*     4.2     2.2    -      -       -      -
   1180O  ARG*     3.9    47.6    -      -       +      +
   1181O  LYS*     3.1    15.8    +      -       +      +
   1183O  ASN*     1.3    91.6    -      -       -      +
   1185O  ARG*     1.3    62.8    +      -       -      +
   1187O  SER*     3.4     6.8    +      -       -      -
   1188O  VAL*     3.1    23.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1185 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1182I  SER*     5.3     6.9    +      -       -      -
   1186I  LYS*     3.9    18.4    -      -       -      +
   1176O  MET      4.0    14.5    -      -       -      +
   1177O  LEU*     3.9    22.7    -      -       -      +
   1179O  GLY*     3.1    44.0    +      -       -      +
   1180O  ARG      3.2    21.0    +      -       -      -
   1181O  LYS      3.0     9.7    +      -       -      +
   1182O  SER*     3.5    30.6    -      -       -      +
   1184O  ILE*     1.3    74.5    -      -       -      +
   1186O  LYS*     1.3    61.0    +      -       -      +
   1188O  VAL*     3.1     8.8    +      -       -      +
   1189O  GLN*     2.9    43.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1186 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1177C  LEU*     3.0    42.6    +      -       +      +
   1178C  GLU      3.6     7.5    +      -       -      -
   1179C  GLY      2.9    25.1    +      -       -      -
   1180C  ARG*     4.4     4.8    +      -       -      +
   1185C  ARG*     3.8    27.5    -      -       -      +
   1182O  SER*     2.9    17.2    +      -       -      +
   1183O  ASN*     3.8     8.5    -      -       -      +
   1184O  ILE      3.2     0.2    -      -       -      -
   1185O  ARG*     1.3    77.8    -      -       -      +
   1187O  SER*     1.3    56.8    +      -       -      +
   1189O  GLN*     3.2    12.1    +      -       -      +
   1190O  ILE*     2.9    39.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER1187 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1099O  TYR*     3.1    28.6    +      -       -      -
   1183O  ASN      3.2    11.6    +      -       -      -
   1184O  ILE*     3.7     9.6    -      -       -      -
   1185O  ARG      3.3     0.2    -      -       -      -
   1186O  LYS*     1.3    79.2    -      -       -      +
   1188O  VAL*     1.3    62.5    +      -       -      +
   1190O  ILE*     3.4    11.4    +      -       -      +
   1191O  ALA      3.0    17.2    +      -       -      -
   1194O  ARG*     5.6     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1188 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1090O  TRP*     3.8    26.9    -      -       +      -
   1097O  PRO*     4.4    17.3    -      -       +      -
   1098O  SER      3.8    12.3    -      -       -      +
   1099O  TYR*     3.6    29.4    -      -       +      -
   1100O  PRO*     3.8     2.2    -      -       +      +
   1175O  LYS      4.7     1.6    -      -       -      +
   1176O  MET*     3.9    23.6    -      -       +      +
   1179O  GLY      6.0     0.4    -      -       -      +
   1184O  ILE*     3.1    18.3    +      -       +      +
   1185O  ARG*     3.5    10.8    -      -       -      +
   1186O  LYS      3.1     0.2    -      -       -      -
   1187O  SER*     1.3    77.8    -      -       -      +
   1189O  GLN*     1.3    55.6    +      -       -      +
   1191O  ALA*     3.2     5.6    +      -       -      +
   1192O  TYR*     2.9    24.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN1189 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1177C  LEU*     3.7    27.3    -      -       +      +
   1176O  MET*     3.9    29.3    +      -       +      +
   1185O  ARG*     2.9    34.0    +      -       -      +
   1186O  LYS*     3.2    12.2    +      -       -      +
   1188O  VAL*     1.3    73.0    -      -       -      +
   1190O  ILE*     1.3    67.0    +      -       -      +
   1192O  TYR*     3.1     8.1    +      -       -      +
   1193O  HIS*     3.0    36.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1190 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1174C  GLU*     4.1    18.9    -      -       +      +
   1177C  LEU*     3.6    43.1    -      -       +      +
   1178C  GLU*     5.0     3.4    -      -       -      -
   1186O  LYS*     2.9    32.0    +      -       -      +
   1187O  SER*     3.7     8.3    -      -       -      +
   1189O  GLN*     1.3    76.4    -      -       -      +
   1191O  ALA*     1.3    63.8    +      -       -      +
   1193O  HIS*     3.2     6.7    +      -       -      +
   1194O  ARG*     2.9    59.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1191 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1099O  TYR*     3.4    39.7    -      -       +      +
   1100O  PRO*     3.7    11.1    -      -       +      +
   1148O  PHE*     3.5    27.7    -      -       +      +
   1187O  SER      3.0     6.0    +      -       -      +
   1188O  VAL      3.2     8.9    +      -       -      +
   1190O  ILE*     1.3    76.0    -      -       -      +
   1192O  TYR*     1.3    56.7    +      -       -      +
   1194O  ARG*     3.3     6.1    +      -       -      +
   1195O  ALA*     2.8    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR1192 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1090O  TRP*     3.6    20.0    -      +       -      -
   1100O  PRO*     3.6    10.3    -      -       +      -
   1165O  LEU*     3.9    20.0    -      -       +      -
   1166O  GLY*     4.5     1.0    -      -       -      -
   1169O  GLN*     5.4     3.6    -      -       -      +
   1172O  ASP*     2.8    47.6    +      -       +      +
   1176O  MET*     3.8    29.8    -      -       +      -
   1188O  VAL      2.9    13.3    +      -       -      +
   1189O  GLN      3.4     7.9    -      -       -      +
   1191O  ALA*     1.3    78.0    -      -       -      +
   1193O  HIS*     1.3    83.0    +      +       -      +
   1195O  ALA*     3.1     5.5    +      -       -      +
   1196O  LEU*     3.0    48.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS1193 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1170C  ASP*     3.3    42.1    -      -       -      +
   1173C  LYS*     3.5    41.8    +      -       +      +
   1174C  GLU*     4.1    10.4    +      -       +      +
   1177C  LEU*     4.3    12.3    -      -       +      +
   1176O  MET*     5.4     3.1    -      -       -      -
   1189O  GLN*     3.0    29.5    +      -       +      -
   1190O  ILE      3.8     5.6    -      -       -      +
   1192O  TYR*     1.3    97.0    -      +       -      +
   1194O  ARG*     1.3    56.0    +      -       -      +
   1196O  LEU*     3.2     2.0    +      -       -      +
   1197O  GLN*     2.9    34.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1194 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1174C  GLU*     3.1    31.1    +      -       -      +
   1099O  TYR*     4.8     2.8    +      -       -      -
   1148O  PHE*     2.9    41.4    +      -       +      -
   1149O  ASP*     3.4     2.8    +      -       -      +
   1150O  ASN*     2.6    43.8    +      -       -      +
   1152O  ARG*     6.5     0.2    -      -       -      +
   1190O  ILE*     2.9    38.9    +      -       -      +
   1191O  ALA*     3.4     8.1    -      -       -      +
   1193O  HIS*     1.3    72.8    -      -       -      +
   1195O  ALA*     1.4    64.8    +      -       -      +
   1197O  GLN*     3.2    10.9    +      -       -      +
   1198O  HIS*     3.0    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1195 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1088O  LEU*     3.5    13.7    -      -       +      +
   1100O  PRO*     4.2     6.3    -      -       +      -
   1148O  PHE*     3.7    32.0    -      -       +      -
   1165O  LEU*     4.0    22.0    -      -       +      -
   1191O  ALA      2.8    16.3    +      -       -      +
   1192O  TYR      3.1     9.4    +      -       -      +
   1194O  ARG*     1.4    72.0    -      -       -      +
   1196O  LEU*     1.3    64.8    +      -       -      +
   1198O  HIS*     3.2     4.9    +      -       -      +
   1199O  ARG      3.1    16.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1196 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1170C  ASP*     3.6    36.1    -      -       -      +
   1088O  LEU*     4.3     2.7    -      -       +      -
   1165O  LEU*     3.7    27.4    -      -       +      -
   1166O  GLY*     4.5     4.0    -      -       -      -
   1192O  TYR*     3.0    42.1    +      -       +      +
   1193O  HIS      3.2     2.7    +      -       -      +
   1195O  ALA*     1.3    80.1    -      -       -      +
   1197O  GLN*     1.3    58.9    +      -       -      +
   1199O  ARG*     3.4    41.2    +      -       -      +
   1200O  SER*     3.0    28.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1197 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1168C  ASN*     4.0     9.5    -      -       -      +
   1170C  ASP*     3.6    12.8    -      -       +      +
   1171C  LEU*     3.4    47.3    -      -       -      +
   1174C  GLU*     2.7    29.1    +      -       -      +
   1193O  HIS      2.9    24.2    +      -       -      +
   1194O  ARG*     3.2     8.7    +      -       -      +
   1196O  LEU*     1.3    75.3    -      -       -      +
   1198O  HIS*     1.3    59.7    +      -       -      +
   1200O  SER*     3.4     7.0    +      -       -      -
   1201O  LYS*     2.9    43.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS1198 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1086O  LEU      5.1     2.5    +      -       -      -
   1088O  LEU*     4.4     9.2    -      -       +      -
   1102O  LEU*     3.9    32.4    -      -       +      +
   1115O  HIS*     4.8     6.4    -      +       -      -
   1118O  VAL*     3.7    30.1    -      -       +      +
   1120O  ILE*     4.1    17.4    -      -       +      +
   1148O  PHE*     3.8    19.5    -      +       +      -
   1152O  ARG*     5.7     2.0    +      -       -      -
   1194O  ARG      3.0    12.8    +      -       -      +
   1195O  ALA      3.2     8.0    +      -       -      +
   1197O  GLN*     1.3    76.4    -      -       -      +
   1199O  ARG*     1.3    66.3    +      -       -      +
   1201O  LYS*     3.5     9.0    +      -       -      +
   1202O  VAL*     3.1    35.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1199 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1170C  ASP*     5.7     0.4    +      -       -      -
   1088O  LEU*     4.0    17.5    -      -       +      -
   1165O  LEU      4.8     1.6    +      -       -      -
   1166O  GLY*     2.8    35.6    +      -       -      -
   1195O  ALA      3.1    12.1    +      -       -      +
   1196O  LEU*     3.4    38.3    +      -       -      +
   1198O  HIS*     1.3    79.3    -      -       -      +
   1200O  SER*     1.3    58.2    +      -       -      +
   1202O  VAL*     2.6    39.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER1200 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1168C  ASN*     3.6    24.1    +      -       -      -
   1170C  ASP*     5.6     3.4    -      -       -      -
   1196O  LEU      3.0    14.2    +      -       -      -
   1197O  GLN*     3.4     8.2    +      -       -      -
   1199O  ARG*     1.3    79.1    -      -       -      +
   1201O  LYS*     1.3    65.6    +      -       -      +
   1202O  VAL      3.1     8.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1201 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1168C  ASN*     6.0     1.8    -      -       -      +
   1116O  HIS      4.2     6.2    -      -       -      +
   1118O  VAL*     3.9    26.4    -      -       +      +
   1197O  GLN*     2.9    33.2    +      -       +      +
   1198O  HIS*     3.7     9.4    -      -       -      +
   1199O  ARG      3.1     0.2    -      -       -      -
   1200O  SER*     1.3    77.4    +      -       -      +
   1202O  VAL*     1.3    60.4    +      -       -      +
----------------------------------------------------------
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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