Contacts of the helix formed by residues 20 - 32 (chain n) in PDB entry 5GJQ


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 VAL 20 (chain n).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83h  MET*     4.6    12.4    -      -       +      +
    132h  ARG*     4.1    20.2    -      -       -      +
     10n  SER      4.7     0.2    -      -       -      +
     11n  ALA*     4.0    30.3    -      -       +      +
     13n  THR      4.2     8.3    -      -       -      +
     14n  PHE*     3.7    25.8    -      -       +      -
     19n  ARG*     1.3    79.4    -      -       -      +
     21n  PHE*     1.3    64.1    +      -       -      +
     22n  GLN      4.2     4.5    -      -       -      +
     23n  VAL*     3.3    36.7    +      -       +      +
     24n  GLU*     3.5    13.2    +      -       -      +
    123n  THR      4.8     2.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 21 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3n  ILE*     3.5    48.2    -      -       +      -
      7n  TYR      3.9    10.0    +      -       -      +
      8n  ASP*     3.7    21.7    -      -       +      +
     10n  SER      5.7     0.4    +      -       -      -
     13n  THR      4.8     3.0    +      -       -      -
     15n  SER*     3.5    31.4    -      -       -      -
     17n  ASP*     6.1     0.4    -      -       +      -
     19n  ARG*     3.3    46.9    +      -       -      -
     20n  VAL*     1.3    70.2    -      -       -      +
     22n  GLN*     1.3    60.6    +      -       -      +
     24n  GLU*     3.2    16.1    +      -       -      +
     25n  TYR*     2.9    57.5    +      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 22 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11m  THR      4.3     4.0    -      -       -      +
     12m  VAL*     3.8     5.2    -      -       -      +
     13m  TRP*     2.8    58.5    +      -       -      +
      8n  ASP*     2.8    27.5    +      -       -      +
      9n  LEU*     3.3    16.7    +      -       -      +
     10n  SER*     3.5    28.2    +      -       -      +
     11n  ALA*     3.9    20.2    -      -       +      +
     20n  VAL*     3.2     2.1    -      -       +      +
     21n  PHE*     1.3    77.8    -      -       -      +
     23n  VAL*     1.3    57.9    +      -       -      +
     25n  TYR*     3.2     5.2    +      -       -      +
     26n  ALA*     2.9    28.9    +      -       -      +
    130n  PRO*     4.6     9.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 23 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20n  VAL*     3.3    29.3    +      -       +      +
     21n  PHE      3.2     0.4    -      -       -      -
     22n  GLN*     1.3    77.5    -      -       -      +
     24n  GLU*     1.3    59.7    +      -       +      +
     26n  ALA*     3.3     6.6    +      -       -      +
     27n  MET*     2.9    35.6    +      -       +      +
    123n  THR*     3.9    29.2    -      -       +      -
    130n  PRO*     4.1     9.2    -      -       +      -
    153n  PRO*     4.2     6.1    -      -       +      +
    154n  SER*     3.7    37.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 24 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19n  ARG*     2.6    55.4    +      -       -      +
     20n  VAL      3.6    12.6    -      -       -      +
     21n  PHE*     3.2    24.1    +      -       -      +
     23n  VAL*     1.3    79.4    -      -       +      +
     25n  TYR*     1.3    62.4    +      -       +      +
     27n  MET*     3.4    15.7    +      -       -      +
     28n  LYS*     3.0    31.6    +      -       -      +
     31n  GLU*     4.8     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 25 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6m  TYR*     4.2     1.6    -      +       -      -
     13m  TRP*     3.9    19.0    -      -       +      -
     14m  SER      3.3    16.6    -      -       -      +
     15m  PRO*     3.5    44.2    -      -       +      +
     17m  GLY*     3.5     9.2    -      -       -      -
      3n  ILE      4.2     6.8    +      -       -      -
      4n  GLY*     5.0     0.3    -      -       -      -
      8n  ASP*     2.7    48.7    +      -       +      +
     21n  PHE*     2.9    49.2    +      +       +      +
     22n  GLN*     3.2     7.8    +      -       -      +
     24n  GLU*     1.3    79.6    -      -       +      +
     26n  ALA*     1.3    66.8    +      -       -      +
     28n  LYS*     3.0    16.2    +      -       -      +
     29n  ALA      3.0    16.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 26 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13m  TRP*     3.6    40.5    -      -       +      +
     22n  GLN      2.9    11.3    +      -       -      +
     23n  VAL*     3.5     9.0    -      -       -      +
     25n  TYR*     1.3    75.4    -      -       -      +
     27n  MET*     1.3    65.7    +      -       -      +
     29n  ALA*     2.9    15.2    +      -       -      +
     30n  VAL*     3.0    15.2    +      -       -      +
    130n  PRO*     4.3    10.5    -      -       +      -
    131n  PHE      4.1    13.7    -      -       -      +
    132n  GLY*     4.2     1.7    -      -       -      -
    153n  PRO*     4.4     3.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 27 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23n  VAL*     2.9    21.6    +      -       +      +
     24n  GLU*     3.4    18.2    -      -       -      +
     26n  ALA*     1.3    77.0    -      -       -      +
     28n  LYS*     1.3    57.3    +      -       -      +
     30n  VAL*     2.9    25.1    +      -       +      +
     31n  GLU*     2.9    23.1    +      -       -      +
    152n  ASP*     4.0    18.6    -      -       +      +
    153n  PRO*     4.0    16.4    -      -       +      -
    154n  SER*     3.9    32.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 28 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15m  PRO      3.5    21.0    +      -       -      +
     16m  GLN*     4.1    17.0    -      -       -      +
     17m  GLY*     4.1     4.7    -      -       -      +
     24n  GLU*     3.0    17.9    +      -       -      +
     25n  TYR*     3.2    19.9    -      -       -      +
     26n  ALA      3.0     0.2    -      -       -      -
     27n  MET*     1.3    73.9    -      -       -      +
     29n  ALA*     1.3    62.5    +      -       -      +
     31n  GLU*     3.2    32.5    +      -       +      +
     32n  ASN*     3.1    30.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 29 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13m  TRP*     3.2    37.9    -      -       +      -
     17m  GLY*     3.4    16.5    -      -       -      +
     25n  TYR      3.0     5.5    +      -       -      -
     26n  ALA      2.9    13.1    +      -       -      +
     28n  LYS*     1.3    77.1    -      -       -      +
     30n  VAL*     1.3    60.7    +      -       -      +
     32n  ASN*     3.5    12.9    +      -       -      +
     33n  SER*     3.9     5.4    +      -       -      -
     79n  GLY*     4.3    10.2    -      -       -      -
     80n  LEU*     5.5     3.6    -      -       +      +
    132n  GLY*     4.6     5.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 30 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26n  ALA      3.0    12.1    +      -       -      +
     27n  MET*     2.9    10.4    +      -       +      +
     29n  ALA*     1.3    74.7    -      -       -      +
     31n  GLU*     1.3    67.4    +      -       +      +
     33n  SER*     3.0    18.5    +      -       -      -
     78n  ALA*     3.9    13.9    -      -       +      +
     79n  GLY*     4.5     4.7    -      -       -      -
    132n  GLY      3.9     1.1    -      -       -      -
    133n  CYS*     3.6    35.0    -      -       -      +
    134n  SER*     3.5    24.9    -      -       -      +
    153n  PRO*     3.8    13.2    -      -       +      -
    165n  ILE*     5.3     1.6    -      -       +      -
    166n  GLY*     3.8    12.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 31 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379L  LYS*     4.3    19.4    +      -       -      +
     24n  GLU      4.8     0.7    -      -       -      +
     27n  MET*     2.9    16.8    +      -       -      +
     28n  LYS*     3.2    44.5    +      -       +      +
     30n  VAL*     1.3    78.2    -      -       +      +
     32n  ASN*     1.3    60.7    +      -       -      +
     33n  SER      3.1     4.4    +      -       -      -
    166n  GLY      4.7     7.6    -      -       -      +
    167n  LYS*     3.3    27.9    +      -       -      +
    169n  ARG*     6.4     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 32 (chain n). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16m  GLN      3.7    21.4    +      -       -      -
     17m  GLY      4.9     5.2    +      -       -      +
     18m  ARG*     5.4     5.5    -      -       -      +
     28n  LYS*     3.1    20.5    +      -       -      +
     29n  ALA*     3.9     8.3    -      -       -      +
     30n  VAL      3.1     1.0    -      -       -      -
     31n  GLU*     1.3    80.1    -      -       -      +
     33n  SER*     1.3    57.0    +      -       -      +
    167n  LYS*     3.2    25.0    +      -       -      +
----------------------------------------------------------
 Back to top of page


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