Contacts of the helix formed by residues 110 - 124 (chain Y) in PDB entry 1S72


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 SER 110 (chain Y).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109Y  LEU*     1.3    80.4    -      -       -      +
    111Y  ASP*     1.3    64.4    +      -       -      +
    112Y  GLU*     3.8     6.3    +      -       -      +
    113Y  ASP*     3.2    32.0    +      -       -      +
    114Y  ALA*     3.2    16.1    +      -       -      +
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Residues in contact with ASP 111 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109Y  LEU      4.5     0.8    -      -       -      +
    110Y  SER*     1.3    73.4    -      -       -      +
    112Y  GLU*     1.3    63.8    +      -       -      +
    114Y  ALA*     3.4     6.6    +      -       -      +
    115Y  ARG*     3.1    23.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 112 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   12670    C      4.0    10.4    +      -       -      -
    110Y  SER*     3.2     6.6    +      -       -      +
    111Y  ASP*     1.3    80.4    -      -       -      +
    113Y  ASP*     1.3    61.4    +      -       -      +
    115Y  ARG*     2.5    49.2    +      -       -      +
    116Y  LEU*     3.0    46.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 113 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109Y  LEU*     3.9    18.8    -      -       +      +
    110Y  SER*     3.2    26.2    +      -       -      +
    111Y  ASP      3.2     0.2    -      -       -      -
    112Y  GLU*     1.3    78.3    -      -       -      +
    114Y  ALA*     1.3    60.1    +      -       -      +
    116Y  LEU*     3.2     5.0    +      -       -      +
    117Y  LEU*     2.8    29.3    +      -       -      +
    173Y  ALA*     3.5    24.0    -      -       -      +
    174Y  VAL*     3.6     5.9    -      -       -      +
    177Y  LYS*     3.6    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 114 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109Y  LEU*     4.2    17.8    -      -       +      +
    110Y  SER      3.2    13.2    +      -       -      +
    111Y  ASP*     3.9     5.8    -      -       -      +
    113Y  ASP*     1.3    79.1    -      -       -      +
    115Y  ARG*     1.3    58.5    +      -       -      +
    117Y  LEU*     3.8     9.5    -      -       +      +
    118Y  THR*     2.9    33.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 115 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5950    U      5.2    13.1    -      -       -      +
   12660    U      2.7    53.0    +      -       -      -
   12670    C      4.0     1.0    +      -       -      -
   85170   CL      3.8    26.7    -      -       +      +
    111Y  ASP      3.1    17.4    +      -       -      +
    112Y  GLU*     2.5    54.2    +      -       -      +
    113Y  ASP      3.1     0.2    -      -       -      -
    114Y  ALA*     1.3    78.4    -      -       -      +
    116Y  LEU*     1.3    78.2    +      -       +      +
    118Y  THR*     3.3     7.3    +      -       -      +
    119Y  GLN*     2.9    27.0    +      -       -      +
    122Y  ARG*     5.0     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 116 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   12660    U      4.4     2.5    -      -       -      +
   12670    C      3.7    32.8    -      -       -      +
   12680    C      6.0     0.4    -      -       -      +
    112Y  GLU*     3.0    34.8    +      -       +      +
    113Y  ASP      4.4     0.2    -      -       -      -
    115Y  ARG*     1.3    94.8    -      -       -      +
    117Y  LEU*     1.3    65.8    +      -       -      +
    119Y  GLN*     3.2    10.7    +      -       -      +
    120Y  ARG*     3.1    24.1    +      -       -      +
    171Y  PRO*     4.2    19.1    -      -       +      +
    173Y  ALA*     3.7    26.7    -      -       +      -
    174Y  VAL*     3.7    16.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 117 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109Y  LEU*     4.4    10.8    -      -       +      -
    113Y  ASP      2.8    17.4    +      -       -      +
    114Y  ALA*     3.8     7.2    -      -       -      +
    116Y  LEU*     1.3    77.4    -      -       -      +
    118Y  THR*     1.3    64.2    +      -       -      +
    120Y  ARG*     3.5    21.7    +      -       -      +
    121Y  HIS*     3.2    23.2    +      -       +      +
    174Y  VAL*     3.2    30.2    -      -       +      +
    177Y  LYS*     4.4     3.6    -      -       +      -
    178Y  HIS      4.4     4.3    -      -       -      +
    179Y  PRO      3.8    14.4    -      -       -      +
    180Y  SER      4.3     3.4    -      -       -      +
    181Y  GLY*     3.8    31.2    -      -       -      +
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Residues in contact with THR 118 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5950    U      3.7    42.0    -      -       -      +
    5960    C      4.0    14.9    +      -       -      +
    114Y  ALA*     2.9    23.6    +      -       -      +
    115Y  ARG*     3.6     7.2    -      -       -      +
    117Y  LEU*     1.3    80.6    -      -       -      +
    119Y  GLN*     1.3    61.6    +      -       -      +
    121Y  HIS*     3.5     8.3    +      -       -      +
    122Y  ARG*     3.0    22.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 119 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   12650    G      5.7     1.0    -      -       -      +
   12660    U      2.5    39.9    +      -       -      +
   12670    C      3.2    27.2    +      -       -      +
    115Y  ARG*     2.9    18.4    +      -       +      +
    116Y  LEU*     3.5    17.4    -      -       -      +
    117Y  LEU      3.2     0.4    -      -       -      -
    118Y  THR*     1.3    73.8    -      -       -      +
    120Y  ARG*     1.3    59.2    +      -       -      +
    122Y  ARG*     2.8    26.4    +      -       -      +
    123Y  VAL*     2.7    53.4    +      -       +      +
    171Y  PRO*     3.8    11.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 120 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   13260    U      3.5    12.9    +      -       -      -
   13270    G      2.8    47.3    +      -       -      +
    116Y  LEU      3.1    13.1    +      -       -      +
    117Y  LEU*     3.8    19.5    +      -       -      +
    119Y  GLN*     1.3    78.5    -      -       -      +
    121Y  HIS*     1.3    59.6    +      -       -      +
    123Y  VAL*     5.0     2.7    -      -       -      -
    124Y  GLY*     3.0    31.0    +      -       -      +
    170Y  SER*     4.2    19.7    -      -       -      -
    171Y  PRO*     4.3    11.1    -      -       +      +
    174Y  VAL*     3.3    31.7    +      -       +      +
    177Y  LYS      2.9    30.1    +      -       -      +
    179Y  PRO*     4.0    13.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 121 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5550    U      3.6    22.1    +      -       -      -
    5560    C      3.2    29.5    +      -       -      -
    6070    G      5.3    13.7    +      -       -      -
    117Y  LEU*     3.2    15.0    +      -       +      +
    118Y  THR*     3.8     9.3    +      -       -      +
    119Y  GLN      3.1     0.6    -      -       -      -
    120Y  ARG*     1.3    83.2    -      -       -      +
    122Y  ARG*     1.3    66.1    +      -       -      +
    124Y  GLY*     4.5     3.1    +      -       -      -
    179Y  PRO*     6.3     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 122 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5940    C      3.0    48.6    +      -       -      -
    5950    U      3.1    26.9    +      -       -      +
   10910    U      5.4     2.6    +      -       -      -
   12650    G      5.4     7.7    -      -       -      +
   85170   CL      3.9     7.7    -      -       -      +
    115Y  ARG      5.0     0.6    +      -       -      -
    118Y  THR*     3.0    14.9    +      -       +      +
    119Y  GLN*     2.8    40.5    +      -       -      +
    121Y  HIS*     1.3    83.1    +      -       -      +
    123Y  VAL*     1.3    73.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 123 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5420    A      5.3     4.3    +      -       -      -
   10900    A      4.6     7.2    -      -       -      +
   10910    U      3.9    46.9    -      -       -      +
    119Y  GLN*     2.7    40.1    +      -       +      +
    120Y  ARG*     4.4     2.5    -      -       -      +
    122Y  ARG*     1.3    88.0    -      -       -      +
    124Y  GLY*     1.3    71.3    +      -       -      +
    125Y  LYS*     3.7     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 124 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   10900    A      5.5     1.0    +      -       -      -
    120Y  ARG*     3.0    19.0    +      -       -      -
    121Y  HIS      5.0     3.1    -      -       -      -
    122Y  ARG      3.6     1.0    -      -       -      -
    123Y  VAL*     1.3    90.8    -      -       -      +
    125Y  LYS*     1.3    66.6    +      -       -      +
    168Y  PHE*     5.6     1.9    -      -       -      +
----------------------------------------------------------
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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