Contacts of the helix formed by residues 114 - 128 (chain M) in PDB entry 4GUN


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 114 (chain M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108M  ILE*     3.7    10.1    +      -       -      +
    109M  VAL*     5.2     3.6    -      -       -      +
    112M  TYR*     3.2    11.7    +      -       -      +
    113M  GLY*     1.4    77.1    -      -       -      +
    115M  VAL*     1.3    62.9    +      -       -      +
    116M  SER*     3.6    11.2    +      -       -      -
    117M  ASN*     3.1    24.1    +      -       -      +
    118M  LEU      3.3    14.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 115 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97M  HIS*     4.1    24.9    -      -       +      +
     98M  PRO*     3.7    35.2    -      -       +      +
    100M  THR*     5.5     8.3    -      -       +      -
    105M  GLY*     6.3     0.4    -      -       -      -
    108M  ILE*     3.8    20.2    -      -       +      -
    109M  VAL*     6.2     1.6    -      -       +      -
    114M  SER*     1.3    70.2    -      -       -      +
    116M  SER*     1.3    54.8    +      -       -      +
    118M  LEU*     3.3     4.3    +      -       +      +
    119M  ILE*     2.8    36.4    +      -       +      +
    197M  TRP*     3.7    35.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 116 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97M  HIS*     4.9     9.8    -      -       -      -
    114M  SER*     3.8    11.2    -      -       -      -
    115M  VAL*     1.3    74.4    -      -       -      +
    117M  ASN*     1.3    58.7    +      -       -      +
    119M  ILE*     3.4    11.0    +      -       -      +
    120M  ASP*     3.1    37.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 117 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112M  TYR*     3.0    32.9    +      -       -      +
    114M  SER*     3.1    13.8    +      -       -      +
    116M  SER*     1.3    74.8    -      -       -      +
    118M  LEU*     1.4    58.1    +      -       -      +
    120M  ASP*     3.2    14.0    +      -       -      +
    121M  ILE*     3.0    47.4    +      -       -      +
    142O  GLN      4.8     3.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 118 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108M  ILE*     4.0    33.9    -      -       +      -
    112M  TYR*     3.6    46.3    -      -       +      +
    114M  SER      3.3    10.1    +      -       -      +
    115M  VAL*     3.3     9.8    +      -       +      +
    117M  ASN*     1.4    74.9    -      -       -      +
    119M  ILE*     1.4    59.0    +      -       -      +
    121M  ILE*     3.3     2.5    +      -       +      +
    122M  THR*     2.9    35.0    +      -       -      +
    137M  ILE*     4.1    34.3    -      -       +      -
    147M  LEU*     5.0     0.9    -      -       +      -
    149M  VAL*     3.8    20.6    -      -       +      -
    197M  TRP*     4.4     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 119 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97M  HIS*     4.0    24.7    -      -       +      +
    115M  VAL*     2.8    25.0    +      -       +      +
    116M  SER*     3.6     9.4    -      -       -      +
    117M  ASN      3.3     0.2    -      -       -      -
    118M  LEU*     1.4    70.9    -      -       -      +
    120M  ASP*     1.4    55.7    +      -       -      +
    122M  THR*     3.4     3.0    +      -       -      -
    123M  ASN*     2.9    41.9    +      -       -      +
    192M  TRP*     3.7    67.7    -      -       +      +
    197M  TRP*     4.1    15.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 120 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116M  SER*     3.1    27.2    +      -       -      +
    117M  ASN*     3.2    17.4    +      -       -      +
    119M  ILE*     1.4    77.3    -      -       -      +
    121M  ILE*     1.3    64.8    +      -       +      +
    123M  ASN*     3.4    10.0    +      -       -      +
    124M  SER*     3.2    22.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 121 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112M  TYR*     3.5    32.5    -      -       +      -
    117M  ASN*     3.0    36.1    +      -       -      +
    118M  LEU*     3.3     7.1    +      -       -      +
    120M  ASP*     1.3    71.9    -      -       +      +
    122M  THR*     1.3    65.2    +      -       -      +
    124M  SER*     3.3     8.4    +      -       -      -
    125M  LYS*     3.1    24.1    +      -       +      +
    149M  VAL*     3.9    20.9    -      -       +      -
    142O  GLN*     3.4    49.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 122 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118M  LEU*     2.9    18.0    +      -       -      +
    119M  ILE      3.7     4.3    -      -       -      -
    121M  ILE*     1.3    76.6    -      -       -      +
    123M  ASN*     1.4    56.1    +      -       -      +
    125M  LYS*     3.2     2.9    +      -       -      +
    126M  LEU*     2.9    38.3    +      -       +      +
    135M  ALA*     4.4     9.9    -      -       +      -
    137M  ILE*     3.8    16.7    -      -       +      +
    149M  VAL*     3.6    33.7    -      -       +      +
    169M  ILE*     5.0     3.6    -      -       +      -
    192M  TRP*     3.6    28.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 123 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119M  ILE*     2.9    23.7    +      -       -      +
    120M  ASP*     3.8     9.9    +      -       -      +
    121M  ILE      3.3     0.2    -      -       -      -
    122M  THR*     1.4    75.4    -      -       -      +
    124M  SER*     1.3    56.2    +      -       -      +
    126M  LEU*     3.5    10.0    +      -       -      +
    127M  ALA*     3.0    28.5    +      -       -      +
    188M  PHE*     3.5    27.0    +      -       +      +
    189M  LYS*     4.3    12.1    -      -       -      +
    192M  TRP*     2.7    38.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 124 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120M  ASP      3.2    14.0    +      -       -      -
    121M  ILE*     3.5    11.7    -      -       -      -
    122M  THR      3.2     0.2    -      -       -      -
    123M  ASN*     1.3    73.9    -      -       -      +
    125M  LYS*     1.4    63.6    +      -       -      +
    127M  ALA*     3.3     8.4    +      -       -      +
    128M  GLY*     3.2    17.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 125 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121M  ILE*     3.1    18.1    +      -       +      +
    122M  THR      3.5     7.4    -      -       -      +
    124M  SER*     1.4    73.9    -      -       -      +
    126M  LEU*     1.3    62.4    +      -       -      +
    128M  GLY*     3.2    12.7    +      -       -      -
    129M  ILE*     3.5    13.9    +      -       -      +
    135M  ALA*     5.0     1.6    -      -       +      -
    149M  VAL*     3.3    45.6    +      -       +      -
    150M  VAL*     4.3     4.2    -      -       -      +
    151M  THR*     3.8    28.9    +      -       +      +
    142O  GLN*     5.2     3.8    -      -       -      +
    162O  HIS*     4.3    22.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 126 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122M  THR*     2.9    34.2    +      -       +      +
    123M  ASN*     3.5    23.1    -      -       -      +
    125M  LYS*     1.3    75.1    -      -       -      +
    127M  ALA*     1.4    60.5    +      -       -      +
    129M  ILE*     3.3    18.3    +      -       +      +
    135M  ALA*     3.5    22.9    -      -       +      -
    151M  THR*     4.8     0.2    -      -       -      +
    169M  ILE*     3.7    32.1    -      -       +      +
    171M  ALA*     4.0    15.0    -      -       +      -
    184M  ARG*     3.2    12.6    +      -       -      -
    188M  PHE*     3.4    42.8    -      -       +      -
    191M  ILE*     5.8     0.2    -      -       +      -
    192M  TRP*     4.7     2.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 127 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123M  ASN      3.0    17.0    +      -       -      +
    124M  SER*     3.3     9.8    +      -       -      +
    126M  LEU*     1.4    75.2    -      -       -      +
    128M  GLY*     1.3    56.8    +      -       -      +
    129M  ILE      4.2     0.2    -      -       -      +
    184M  ARG*     2.8    20.6    +      -       -      +
    185M  PRO*     6.0     6.3    -      -       +      -
    188M  PHE*     3.8     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 128 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124M  SER      3.2     8.5    +      -       -      -
    125M  LYS      3.2     9.9    +      -       -      -
    127M  ALA*     1.3    74.2    -      -       -      +
    129M  ILE*     1.4    62.5    +      -       -      +
    130M  GLN*     3.3    16.1    +      -       -      +
----------------------------------------------------------
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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