Contacts of the helix formed by residues 283 - 298 (chain D) in PDB entry 4GQS


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 THR 283 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267D  PHE*     3.0    17.2    -      -       -      -
    271D  MET*     3.5     6.7    -      -       -      -
    280D  SER*     3.9    18.6    -      -       -      +
    281D  GLU      3.3     2.6    +      -       -      -
    282D  PHE*     1.3    76.6    -      -       -      +
    284D  ILE*     1.3    65.9    +      -       -      +
    285D  GLU*     3.0    22.7    +      -       -      +
    286D  ASN*     2.8    31.0    +      -       -      +
    287D  LEU      3.2     7.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 284 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245D  LEU*     3.3    29.6    -      -       +      -
    248D  VAL*     4.5    16.8    -      -       +      -
    249D  LYS*     3.1    34.5    -      -       +      +
    252D  GLN*     5.3     4.0    -      -       -      +
    271D  MET*     3.3    21.2    -      -       +      +
    283D  THR*     1.3    73.3    -      -       -      +
    285D  GLU*     1.3    74.4    +      -       +      +
    287D  LEU*     3.5     3.6    -      -       +      +
    288D  VAL*     3.2    23.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 285 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110D  PHE*     3.7    31.2    -      -       +      -
    283D  THR*     3.0    16.5    +      -       -      +
    284D  ILE*     1.3    87.6    -      -       +      +
    286D  ASN*     1.3    66.6    +      -       -      +
    287D  LEU      3.2     0.9    +      -       -      -
    288D  VAL*     3.4     1.7    +      -       -      +
    289D  ILE*     3.1    32.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 286 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110D  PHE*     3.1    15.3    -      -       -      +
    111D  GLY      4.3     3.5    +      -       -      +
    119D  ARG*     2.6    39.5    +      -       -      +
    123D  ILE*     4.2    12.1    -      -       +      +
    267D  PHE*     4.2     5.4    -      -       +      -
    281D  GLU*     2.7    35.9    +      -       -      +
    283D  THR*     2.8    28.0    +      -       -      +
    285D  GLU*     1.3    79.8    -      -       -      +
    287D  LEU*     1.3    50.6    +      -       -      +
    289D  ILE*     4.0     2.5    -      -       -      +
    290D  THR*     2.5    42.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 287 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244D  ILE*     6.1     0.4    -      -       +      -
    248D  VAL*     3.5    40.4    -      -       +      -
    263D  PHE*     5.2     9.4    -      -       +      -
    264D  ILE*     4.2    22.2    -      -       +      -
    267D  PHE*     3.3    55.1    -      -       +      -
    268D  LEU*     4.3     4.3    -      -       +      -
    271D  MET*     4.3     8.7    -      -       +      -
    283D  THR      3.2     5.1    +      -       -      +
    284D  ILE*     3.5    10.1    -      -       -      +
    285D  GLU      3.1     0.4    -      -       -      -
    286D  ASN*     1.3    74.8    -      -       -      +
    288D  VAL*     1.3    66.1    +      -       -      +
    290D  THR*     3.1     6.6    +      -       -      -
    291D  ALA*     3.0    25.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 288 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241D  GLU*     3.6    42.0    -      -       +      +
    244D  ILE*     3.6    19.5    -      -       +      +
    245D  LEU*     3.8    36.6    -      -       +      -
    248D  VAL*     4.6     5.8    -      -       +      -
    284D  ILE*     3.2    18.2    +      -       +      +
    285D  GLU*     4.0     4.0    -      -       -      +
    287D  LEU*     1.3    79.7    -      -       -      +
    289D  ILE*     1.3    67.0    +      -       +      +
    291D  ALA*     3.5     2.9    +      -       -      +
    292D  ALA*     3.2    18.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 289 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107D  ASN*     3.3    28.5    -      -       -      +
    108D  ARG*     4.4     8.7    -      -       -      +
    110D  PHE*     3.3    23.1    -      -       +      -
    111D  GLY*     3.1    31.4    -      -       -      +
    241D  GLU*     3.3    27.6    -      -       -      +
    285D  GLU*     3.1    22.8    +      -       +      +
    286D  ASN      4.0     1.6    -      -       -      +
    287D  LEU      3.2     0.6    -      -       -      -
    288D  VAL*     1.3    80.7    -      -       +      +
    290D  THR*     1.3    66.2    +      -       -      +
    292D  ALA*     3.3     7.3    +      -       -      +
    293D  ASP*     3.0    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 290 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111D  GLY*     3.9    13.7    -      -       -      -
    112D  ILE*     4.6     5.4    -      -       +      +
    123D  ILE*     3.5    34.5    -      -       +      +
    126D  PHE*     6.4     0.4    -      -       +      -
    127D  SER*     4.5     7.6    -      -       -      +
    263D  PHE*     4.4    23.1    -      -       +      -
    267D  PHE*     5.0     4.7    -      -       +      -
    286D  ASN*     2.5    31.5    +      -       -      -
    287D  LEU*     3.5     7.4    -      -       -      -
    289D  ILE*     1.3    73.4    -      -       -      +
    291D  ALA*     1.3    63.9    +      -       -      +
    293D  ASP*     3.2     5.2    +      -       -      +
    294D  LEU*     3.0    28.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 291 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182D  ILE*     4.4    23.0    -      -       +      +
    183D  PHE*     5.9     0.9    -      -       +      -
    244D  ILE*     3.8    22.9    -      -       +      -
    263D  PHE*     6.1     4.3    -      -       +      -
    264D  ILE*     6.2     2.2    -      -       +      -
    287D  LEU*     3.0    15.4    +      -       +      +
    288D  VAL      3.6     9.6    -      -       -      +
    289D  ILE      3.2     0.2    -      -       -      -
    290D  THR*     1.3    74.4    -      -       -      +
    292D  ALA*     1.3    57.5    +      -       -      +
    293D  ASP      2.9     0.5    +      -       -      -
    294D  LEU*     3.0     6.5    +      -       -      +
    295D  LEU*     2.7    39.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 292 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107D  ASN*     6.3     0.4    -      -       -      +
    237D  LEU*     5.4    12.1    -      -       +      +
    240D  MET*     5.0    16.1    -      -       -      +
    241D  GLU*     4.5    13.9    -      -       +      -
    244D  ILE*     3.6    16.5    -      -       +      +
    288D  VAL      3.2    11.7    +      -       -      +
    289D  ILE*     3.3    10.7    +      -       -      +
    291D  ALA*     1.3    79.6    -      -       -      +
    293D  ASP*     1.3    62.5    +      -       -      +
    295D  LEU*     3.9     5.4    -      -       -      +
    296D  GLY*     3.2    18.4    +      -       -      -
    502D  0XV      4.9     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 293 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107D  ASN*     3.0    33.5    +      -       -      +
    110D  PHE      3.9     0.3    -      -       -      +
    111D  GLY*     3.2    22.2    -      -       -      -
    112D  ILE*     3.2    10.5    +      -       +      -
    113D  VAL*     3.7    24.5    +      -       +      +
    114D  PHE*     4.8     0.3    -      -       -      -
    289D  ILE      3.0     8.5    +      -       -      +
    290D  THR      3.3    10.1    -      -       -      +
    291D  ALA      2.9     1.4    +      -       -      -
    292D  ALA*     1.3    76.2    -      -       -      +
    294D  LEU*     1.3    55.1    +      -       -      +
    296D  GLY      3.0     1.9    +      -       -      -
    297D  ALA*     2.6    40.5    +      -       -      +
    502D  0XV      3.4    20.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 294 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112D  ILE*     4.6     9.2    -      -       +      +
    127D  SER*     4.6     9.2    -      -       -      +
    131D  LEU*     4.9    11.9    -      -       +      -
    178D  ILE*     3.7    15.3    -      -       +      +
    182D  ILE*     5.2     7.6    -      -       +      -
    263D  PHE*     4.3    30.7    -      -       +      -
    290D  THR*     3.0    20.0    +      -       +      +
    291D  ALA*     3.9     4.0    -      -       -      +
    293D  ASP*     1.3    78.6    -      -       -      +
    295D  LEU*     1.3    60.8    +      -       -      +
    296D  GLY      3.2     1.2    +      -       -      -
    297D  ALA*     4.4     3.4    -      -       -      +
    298D  GLY*     3.2    18.9    +      -       -      -
    436D  VAL*     5.2     5.2    -      -       +      -
    501D  HEM      3.6    56.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 295 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175D  CYS*     4.4     1.6    -      -       -      +
    178D  ILE*     3.4    28.7    -      -       +      +
    179D  CYS*     3.8    18.4    -      -       -      -
    182D  ILE*     3.6    16.5    -      -       +      +
    183D  PHE*     4.6    13.0    -      -       +      -
    197D  LEU*     4.1    32.1    -      -       +      -
    201D  LEU*     3.6     9.4    -      -       +      +
    240D  MET*     5.1     9.0    -      -       +      -
    244D  ILE*     4.8    16.2    -      -       +      -
    291D  ALA      2.7    22.6    +      -       -      +
    292D  ALA*     4.0     4.7    -      -       -      +
    294D  LEU*     1.3    71.2    -      -       -      +
    296D  GLY*     1.3    57.1    +      -       -      +
    298D  GLY      4.5     0.4    -      -       -      -
    299D  THR*     3.1    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 296 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201D  LEU*     3.7    18.9    -      -       -      +
    205D  ILE*     5.4     3.5    -      -       -      +
    292D  ALA      3.2     9.9    +      -       -      -
    293D  ASP      3.0     5.6    +      -       -      -
    295D  LEU*     1.3    79.1    -      -       -      +
    297D  ALA*     1.3    60.0    +      -       -      +
    298D  GLY      3.1     5.4    +      -       -      -
    299D  THR*     3.9     5.9    +      -       -      -
    300D  GLU*     4.2    13.3    +      -       -      +
    301D  THR      5.1     0.3    +      -       -      -
    502D  0XV      4.6    15.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 297 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113D  VAL*     4.3     3.8    -      -       +      -
    293D  ASP      2.6    24.1    +      -       -      +
    294D  LEU*     4.4     1.3    -      -       -      +
    296D  GLY*     1.3    70.4    -      -       -      +
    298D  GLY*     1.3    56.7    +      -       -      +
    301D  THR*     2.8    23.2    +      -       -      +
    501D  HEM      3.2    42.0    +      -       +      -
    502D  0XV      3.1    33.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 298 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174D  PRO*     5.3     0.2    -      -       -      -
    178D  ILE*     4.3     8.7    -      -       -      -
    294D  LEU      3.2    12.5    +      -       -      -
    296D  GLY      3.1     0.8    -      -       -      -
    297D  ALA*     1.3    78.9    -      -       -      +
    299D  THR*     1.3    57.1    +      -       -      +
    301D  THR*     2.8    13.1    +      -       -      -
    302D  THR*     2.4    31.1    +      -       -      -
    501D  HEM      3.5    25.5    -      -       -      +
----------------------------------------------------------
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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