Contacts of the helix formed by residues 242 - 254 (chain J) in PDB entry 5EF6


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 242 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C    T      3.8    37.0    -      -       -      +
     17C    C      3.3     5.4    -      -       -      -
    238J  ASN*     4.8    10.5    -      -       -      +
    240J  PHE      4.2     8.5    -      -       -      +
    241J  ILE*     1.3    82.3    -      -       -      +
    243J  LYS*     1.3    65.7    +      -       -      +
    244J  ASP*     3.7     8.0    +      -       -      +
    245J  LYS*     3.1    29.9    +      -       +      +
    246J  ARG*     3.1    18.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 243 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C    C      2.8    36.7    +      -       +      +
     18C    C      3.0    29.9    +      -       -      -
    241J  ILE      4.1     0.2    +      -       -      -
    242J  THR*     1.3    72.1    -      -       -      +
    244J  ASP*     1.3    65.0    +      -       -      +
    246J  ARG*     3.3    32.2    +      -       -      +
    247J  ARG*     3.3    30.2    +      -       -      +
      3L    A      3.4    13.1    +      -       -      -
      4L    C      2.7    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 244 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C    T      5.5     7.0    -      -       -      +
     17C    C      4.5     3.0    +      -       -      +
    242J  THR*     3.2     8.6    +      -       -      +
    243J  LYS*     1.3    78.6    -      -       -      +
    245J  LYS*     1.3    73.9    +      -       +      +
    247J  ARG*     3.2    23.8    +      -       -      +
    248J  LYS*     2.6    44.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 245 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13H    A      5.4     7.0    +      -       -      -
    234J  GLU*     3.9    35.4    -      -       +      +
    241J  ILE*     3.5    20.6    -      -       +      -
    242J  THR*     3.1    21.6    +      -       +      +
    244J  ASP*     1.3    92.8    +      -       +      +
    246J  ARG*     1.3    57.3    +      -       -      +
    248J  LYS*     3.2     9.0    +      -       +      +
    249J  ILE*     2.8    36.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 246 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241J  ILE*     3.8    17.5    +      -       +      +
    242J  THR      3.1    12.7    +      -       -      +
    243J  LYS*     3.5    33.8    -      -       -      +
    244J  ASP      3.2     0.6    -      -       -      -
    245J  LYS*     1.3    72.9    -      -       -      +
    247J  ARG*     1.3    89.6    +      -       -      +
    249J  ILE*     4.4     3.4    -      -       -      -
    250J  SER*     3.0    25.5    +      -       -      -
    257J  GLU*     3.4    43.3    +      -       -      +
    260J  ILE*     3.6    27.6    -      -       +      +
    261J  THR*     3.4    18.9    +      -       -      -
      4L    C      2.7    38.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 247 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243J  LYS*     3.3    29.4    +      -       -      +
    244J  ASP*     3.2    11.2    +      -       -      +
    246J  ARG*     1.3   107.5    -      -       -      +
    248J  LYS*     1.3    64.3    +      -       +      +
    250J  SER*     3.1    17.7    +      -       -      -
    251J  ALA*     3.1    13.7    +      -       -      +
    257J  GLU*     2.7    42.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 248 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244J  ASP*     2.6    43.6    +      -       -      +
    245J  LYS*     3.2    10.8    +      -       +      +
    247J  ARG*     1.3    81.9    -      -       +      +
    249J  ILE*     1.3    64.8    +      -       -      +
    251J  ALA*     3.5     7.2    +      -       -      +
    252J  ALA*     3.1    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 249 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230J  GLU*     3.6    36.6    -      -       +      +
    231J  LEU*     4.5    11.2    -      -       +      +
    234J  GLU*     3.9    24.9    -      -       +      -
    241J  ILE*     4.8     9.4    -      -       +      -
    245J  LYS*     2.8    25.2    +      -       +      +
    246J  ARG*     3.8     5.8    -      -       -      +
    248J  LYS*     1.3    77.3    -      -       -      +
    250J  SER*     1.3    51.7    +      -       -      +
    251J  ALA      3.0     0.5    +      -       -      -
    252J  ALA*     3.1     2.8    +      -       -      -
    253J  THR*     2.6    55.0    +      -       +      +
    260J  ILE*     3.4    31.4    -      -       +      -
    264J  PHE*     5.5     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 250 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246J  ARG      3.0    11.7    +      -       -      -
    247J  ARG      3.4     3.6    -      -       -      -
    249J  ILE*     1.3    77.1    -      -       -      +
    251J  ALA*     1.3    57.7    +      -       -      +
    253J  THR*     3.8     1.3    -      -       -      -
    254J  SER*     3.0    25.0    +      -       -      -
    255J  LEU      2.5    26.4    +      -       -      +
    256J  SER*     4.2     0.9    -      -       -      -
    257J  GLU*     3.0    32.5    +      -       -      +
    260J  ILE*     3.7     8.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 251 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247J  ARG      3.1    12.0    +      -       -      +
    248J  LYS*     3.8     9.4    -      -       -      +
    249J  ILE      3.1     0.6    -      -       -      -
    250J  SER*     1.3    79.0    -      -       -      +
    252J  ALA*     1.3    65.3    +      -       -      +
    253J  THR      3.2     1.2    +      -       -      -
    254J  SER*     3.8     8.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 252 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230J  GLU*     4.5    19.7    -      -       +      +
    248J  LYS      3.1    15.3    +      -       -      +
    249J  ILE*     3.1     4.6    +      -       -      +
    251J  ALA*     1.3    80.1    -      -       -      +
    253J  THR*     1.3    66.1    +      -       +      +
    254J  SER*     4.6     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 253 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227J  GLN*     2.9    45.4    +      -       -      +
    230J  GLU*     3.6    32.8    -      -       +      -
    231J  LEU*     5.3     0.4    -      -       +      -
    249J  ILE*     2.6    45.0    +      -       +      +
    250J  SER*     3.8     0.9    -      -       -      -
    252J  ALA*     1.3    76.7    -      -       +      +
    254J  SER*     1.3    68.4    +      -       -      +
    255J  LEU*     3.4    27.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 254 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227J  GLN*     4.7     4.2    +      -       -      -
    250J  SER      3.0    17.2    +      -       -      -
    251J  ALA      3.8     7.5    +      -       -      -
    252J  ALA      3.7     2.3    +      -       -      -
    253J  THR*     1.3    80.2    +      -       -      +
    255J  LEU*     1.3    60.4    +      -       -      +
    259J  GLN*     5.0     0.2    -      -       -      +
----------------------------------------------------------
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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