Contacts of the helix formed by residues 1130 - 1141 (chain A) in PDB entry 1Y6A


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 THR1130 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1000A  LEU*     3.8    35.7    -      -       +      -
   1004A  ILE*     5.0     9.2    -      -       +      +
   1097A  PHE*     4.6     0.8    -      -       +      -
   1128A  TYR      3.9     0.4    +      -       -      -
   1129A  THR*     1.3    94.4    +      -       -      +
   1131A  PRO*     1.4    71.5    -      -       -      +
   1132A  GLU*     3.2    18.6    +      -       -      +
   1133A  MET*     3.1    32.5    +      -       +      +
   1134A  TYR      3.0     8.0    +      -       -      -
   1161A  LEU*     5.6     0.3    -      -       -      +
   1165A  ASN*     5.8     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO1131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1129A  THR*     4.8     1.1    -      -       +      +
   1130A  THR*     1.4    88.5    -      -       -      +
   1132A  GLU*     1.3    69.8    +      -       -      +
   1134A  TYR*     3.5     7.3    +      -       +      +
   1135A  GLN*     3.0    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1130A  THR*     3.2    25.1    +      -       -      +
   1131A  PRO*     1.3    88.7    -      -       +      +
   1133A  MET*     1.3    57.9    +      -       -      +
   1135A  GLN*     3.5     7.4    +      -       -      +
   1136A  THR*     3.0    30.2    +      -       -      -
   1157A  HIS*     4.7     3.8    +      -       +      +
   1161A  LEU*     3.9    34.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET1133 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1004A  ILE*     4.4    14.1    -      -       +      -
   1007A  SER*     4.5     1.6    -      -       -      +
   1093A  LEU*     3.8    35.2    -      -       +      -
   1097A  PHE*     3.6    44.6    -      -       +      -
   1129A  THR*     3.5    13.5    -      -       -      +
   1130A  THR*     3.1    22.8    +      -       -      +
   1132A  GLU*     1.3    74.7    -      -       -      +
   1134A  TYR*     1.3    63.0    +      -       -      +
   1136A  THR*     3.3     7.4    +      -       -      -
   1137A  MET*     3.1    27.9    +      -       +      +
   1158A  LEU*     3.6    25.8    -      -       +      -
   1161A  LEU*     3.8    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR1134 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122A  ARG*     5.0     0.7    -      -       -      +
   1123A  MET      2.6    26.7    +      -       -      -
   1124A  ARG*     3.5     8.7    -      -       -      -
   1125A  ALA*     3.4    39.0    -      -       +      -
   1126A  PRO*     4.3     0.2    -      -       +      -
   1129A  THR*     3.3    14.5    +      -       +      +
   1130A  THR      3.0    14.3    +      -       -      +
   1131A  PRO*     3.5     7.6    +      -       +      +
   1133A  MET*     1.3    72.8    -      -       -      +
   1135A  GLN*     1.3    65.5    +      -       -      +
   1137A  MET*     3.0    19.5    +      -       -      +
   1138A  LEU*     3.0    54.4    +      -       +      +
   1141A  TRP*     4.4     7.6    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLN1135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1131A  PRO      3.0    18.0    +      -       -      +
   1132A  GLU*     3.5     9.4    -      -       -      +
   1134A  TYR*     1.3    77.4    -      -       -      +
   1136A  THR*     1.3    58.2    +      -       -      +
   1138A  LEU*     3.3    21.0    +      -       -      +
   1139A  ASP*     2.9    63.1    +      -       -      +
   1157A  HIS*     6.4     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR1136 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1093A  LEU*     3.7    17.7    -      -       +      -
   1132A  GLU      3.0    15.5    +      -       -      -
   1133A  MET*     3.5    17.4    -      -       +      -
   1134A  TYR      3.2     0.2    -      -       -      -
   1135A  GLN*     1.3    78.2    -      -       -      +
   1137A  MET*     1.3    62.5    +      -       -      +
   1139A  ASP*     3.3    11.5    +      -       +      +
   1140A  CYS*     3.0    22.4    +      -       -      -
   1154A  LEU*     3.7    28.3    -      -       +      -
   1157A  HIS*     3.3    28.9    +      -       +      -
   1158A  LEU*     4.8     4.5    -      -       +      -
   1161A  LEU*     4.5     2.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET1137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1090A  GLY*     3.6    19.1    -      -       -      +
   1093A  LEU*     3.7    32.3    -      -       +      +
   1094A  TRP*     3.8    27.8    -      -       -      -
   1097A  PHE*     4.1     9.2    -      -       +      -
   1126A  PRO*     4.1     9.2    -      -       +      -
   1129A  THR*     3.7    19.5    -      -       -      +
   1133A  MET*     3.1    21.5    +      -       +      +
   1134A  TYR*     3.0    24.3    +      -       +      +
   1136A  THR*     1.3    76.8    -      -       -      +
   1138A  LEU*     1.3    62.6    +      -       -      +
   1140A  CYS*     3.2     7.8    +      -       -      +
   1141A  TRP*     2.9    45.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122A  ARG*     4.2    18.7    +      -       +      -
   1134A  TYR*     3.0    56.2    +      -       +      +
   1135A  GLN*     3.5    25.1    -      -       -      +
   1137A  MET*     1.3    76.9    -      -       -      +
   1139A  ASP*     1.3    62.5    +      -       -      +
   1141A  TRP*     3.2    28.3    +      -       +      +
   1142A  HIS*     3.4    10.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP1139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1135A  GLN*     2.9    46.7    +      -       -      +
   1136A  THR*     3.5    14.7    +      -       -      +
   1137A  MET      3.2     0.2    -      -       -      -
   1138A  LEU*     1.3    73.8    -      -       -      +
   1140A  CYS*     1.3    63.3    +      -       -      +
   1142A  HIS*     3.2    22.5    +      -       -      +
   1147A  GLN      4.5     1.4    -      -       -      +
   1148A  ARG*     3.6     1.2    -      -       -      -
   1149A  PRO*     3.3    30.7    -      -       +      +
   1157A  HIS*     5.8     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS1140 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1086A  VAL*     3.4    39.0    -      -       -      +
   1087A  TRP*     3.4    10.0    -      -       -      -
   1089A  PHE*     4.1    10.3    -      -       -      -
   1090A  GLY*     3.7    14.1    -      -       -      -
   1093A  LEU*     4.6     0.4    -      -       -      -
   1136A  THR*     3.0    20.6    +      -       -      +
   1137A  MET      3.2     8.0    +      -       -      +
   1139A  ASP*     1.3    76.3    -      -       -      +
   1141A  TRP*     1.3    59.1    +      -       -      +
   1142A  HIS      3.2     0.4    -      -       -      -
   1148A  ARG*     3.1    24.8    -      -       -      -
   1149A  PRO*     4.1     2.9    -      -       -      -
   1154A  LEU*     3.9    26.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP1141 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1087A  TRP*     3.1    44.0    +      +       +      -
   1090A  GLY*     3.3    23.8    -      -       -      -
   1091A  VAL*     3.2    25.9    -      -       +      +
   1094A  TRP*     4.1    11.2    -      +       +      -
   1104A  TYR*     5.2     3.4    -      -       -      -
   1122A  ARG*     2.9    47.9    +      -       -      +
   1123A  MET*     3.7    57.4    -      -       +      -
   1134A  TYR*     4.4     2.9    -      +       -      -
   1137A  MET*     2.9    38.5    +      -       +      +
   1138A  LEU*     3.4    24.2    -      -       +      +
   1139A  ASP      3.2     0.8    -      -       -      -
   1140A  CYS*     1.3    76.1    -      -       -      +
   1142A  HIS*     1.3    60.5    +      -       -      -
----------------------------------------------------------
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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