Contacts of the helix formed by residues 110 - 122 (chain A) in PDB entry 5KYT


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 ASN 110 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  ILE      3.4     2.8    +      -       -      -
    109A  TYR*     1.3    75.6    -      -       -      +
    111A  GLU*     1.3    59.3    +      -       -      +
    112A  ARG*     3.2    11.3    +      -       -      +
    113A  GLU*     2.8    51.3    +      -       -      +
    114A  LEU*     2.8    27.0    +      -       -      +
    135A  LYS*     6.1     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ASN*     1.3    74.6    -      -       -      +
    112A  ARG*     1.3    54.1    +      -       -      +
    114A  LEU*     4.3     4.7    -      -       -      -
    115A  LEU*     2.8    37.5    +      -       -      +
    135A  LYS*     4.8    15.0    -      -       +      +
    138A  ASN*     2.5    50.0    +      -       +      +
    139A  VAL*     3.7    17.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 112 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ASN*     3.2    10.4    +      -       -      +
    111A  GLU*     1.3    79.4    -      -       -      +
    113A  GLU*     1.3    58.6    +      -       +      +
    115A  LEU*     3.9     7.7    -      -       -      +
    116A  ASN*     3.0    28.6    +      -       -      +
    204A  LEU*     5.4     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 113 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  ILE      4.6     0.9    -      -       -      +
    109A  TYR*     3.5    34.8    -      -       +      -
    110A  ASN*     2.8    50.2    +      -       -      +
    112A  ARG*     1.3    72.0    -      -       +      +
    114A  LEU*     1.3    66.0    +      -       -      +
    116A  ASN*     3.3     8.9    +      -       -      +
    117A  SER*     3.0    24.1    +      -       -      -
    205A  PRO*     5.6    10.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 114 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  CYS*     4.5     9.0    -      -       -      -
    105A  ALA*     3.9    27.1    -      -       +      -
    106A  ASN      4.7     2.5    -      -       -      +
    109A  TYR*     3.8    16.4    -      -       +      +
    110A  ASN      2.8    17.3    +      -       -      +
    111A  GLU*     3.7     5.2    -      -       -      +
    113A  GLU*     1.3    77.1    -      -       -      +
    115A  LEU*     1.3    63.9    +      -       -      +
    117A  SER*     3.2     2.9    +      -       -      -
    118A  MET*     3.0    36.6    +      -       +      +
    135A  LYS*     3.5    50.3    -      -       +      +
    136A  ILE*     3.8    22.0    -      -       +      -
    139A  VAL*     4.5     3.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 115 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111A  GLU      2.8    21.1    +      -       -      +
    112A  ARG*     3.9     6.7    -      -       -      +
    114A  LEU*     1.3    74.0    -      -       -      +
    116A  ASN*     1.3    57.4    +      -       -      +
    118A  MET      3.3     0.2    +      -       -      -
    119A  ASN*     2.8    39.4    +      -       +      +
    139A  VAL*     4.1    19.2    -      -       +      +
    142A  LYS*     3.8    41.7    -      -       +      +
    143A  LEU*     3.7    35.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 116 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  ARG      3.0    18.4    +      -       -      +
    113A  GLU*     3.5     7.6    +      -       -      +
    115A  LEU*     1.3    78.8    -      -       -      +
    117A  SER*     1.3    65.8    +      -       -      +
    119A  ASN*     3.4     9.1    +      -       -      +
    120A  ILE*     3.1    36.0    +      -       -      +
    204A  LEU*     3.5    30.2    -      -       +      +
    205A  PRO*     3.3    43.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 117 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  VAL*     5.8     0.5    -      -       -      +
    103A  ALA*     5.9     2.1    -      -       -      +
    104A  PRO      4.7     0.9    +      -       -      -
    105A  ALA*     4.1    12.7    -      -       -      +
    109A  TYR*     3.7    12.1    -      -       -      -
    113A  GLU      3.0    14.4    +      -       -      -
    114A  LEU*     3.6     7.6    -      -       -      -
    116A  ASN*     1.3    80.0    -      -       -      +
    118A  MET*     1.3    62.2    +      -       -      +
    120A  ILE*     3.2     7.6    +      -       -      +
    121A  SER*     3.0    27.9    +      -       -      -
    197A  ASN*     2.9    38.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 118 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  VAL*     4.1    28.5    -      -       +      -
    105A  ALA*     5.0     0.7    -      -       +      -
    114A  LEU*     3.0    23.6    +      -       +      +
    117A  SER*     1.3    75.4    -      -       -      +
    119A  ASN*     1.3    60.5    +      -       -      +
    120A  ILE      3.1     1.8    -      -       -      -
    121A  SER*     3.5     6.3    -      -       -      -
    122A  GLN*     2.7    34.1    +      -       -      -
    123A  PRO*     3.4    15.2    -      -       +      +
    126A  VAL*     4.2     9.2    -      -       -      -
    136A  ILE*     3.7    30.3    -      -       +      -
    139A  VAL*     3.6    32.1    -      -       +      -
    143A  LEU*     3.7    22.1    -      -       +      +
    146A  ILE*     4.2     7.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 119 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A  LEU*     2.8    29.2    +      -       +      +
    116A  ASN*     3.5    10.8    +      -       -      +
    118A  MET*     1.3    71.8    -      -       -      +
    120A  ILE*     1.3    62.7    +      -       -      +
    122A  GLN*     2.9    31.6    +      -       -      +
    142A  LYS      5.4     1.0    -      -       -      +
    143A  LEU*     3.7    17.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 120 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  ASN*     3.1    27.0    +      -       -      +
    117A  SER*     3.5     8.7    -      -       -      +
    118A  MET      3.1     0.4    -      -       -      -
    119A  ASN*     1.3    83.2    -      -       +      +
    121A  SER*     1.3    63.5    +      -       -      +
    122A  GLN*     3.4     5.2    +      -       -      +
    195A  ILE*     5.3     0.7    -      -       +      -
    197A  ASN*     5.1     1.6    -      -       -      +
    205A  PRO      3.5    24.7    -      -       -      +
    206A  LYS*     3.9     2.2    -      -       -      -
    207A  GLY*     3.7    35.9    -      -       -      +
    402A  VAL*     3.8    35.9    -      -       +      +
    403A  ASN*     4.6     5.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 121 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ARG*     2.6    41.8    +      -       -      +
     79A  VAL*     3.9     4.6    -      -       -      +
    103A  ALA*     3.6    30.9    -      -       -      +
    117A  SER*     3.0    18.6    +      -       -      -
    118A  MET*     3.5     8.8    -      -       -      -
    120A  ILE*     1.3    76.7    -      -       -      +
    122A  GLN*     1.3    61.2    +      -       -      +
    123A  PRO*     3.4     7.9    -      -       -      +
    195A  ILE*     4.4    18.2    -      -       -      -
    402A  VAL*     5.5     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 122 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ARG*     3.1    28.9    +      -       -      +
    118A  MET      2.7    16.6    +      -       -      -
    119A  ASN*     2.9    44.7    +      -       -      +
    120A  ILE      4.0     4.5    -      -       -      +
    121A  SER*     1.3    76.1    -      -       -      +
    123A  PRO*     1.3    67.9    -      -       -      +
    124A  THR      3.7     1.4    +      -       -      -
    143A  LEU*     4.4     8.3    -      -       -      +
    145A  ILE*     3.4    32.3    -      -       +      +
    403A  ASN*     5.9     3.6    -      -       -      +
----------------------------------------------------------
 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