Contacts of the helix formed by residues 361 - 371 (chain B) in PDB entry 3K0J


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 GLU 361 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310B  HIS*     4.1     9.8    -      -       -      -
    359B  PHE*     3.5    19.4    -      -       -      +
    360B  LYS*     1.3   110.2    -      -       +      +
    362B  VAL*     1.3    65.3    +      -       -      +
    363B  SER*     3.5    15.3    -      -       -      +
    364B  SER*     3.7    13.7    -      -       -      +
    365B  ALA      3.9     0.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 362 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308B  PRO*     3.8    16.4    -      -       +      -
    309B  ASN*     3.2    43.7    -      -       -      +
    310B  HIS*     3.5    30.7    -      -       +      +
    361B  GLU*     1.3    70.6    +      -       -      +
    363B  SER*     1.3    67.9    +      -       -      +
    364B  SER      3.1     2.2    -      -       -      -
    365B  ALA*     3.1     4.7    +      -       -      +
    366B  THR*     3.0    22.9    +      -       -      +
    386B  TYR*     4.9     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 363 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361B  GLU*     4.0    13.3    -      -       -      +
    362B  VAL*     1.3    75.8    -      -       -      +
    364B  SER*     1.3    64.6    +      -       -      +
    366B  THR*     2.8    24.5    +      -       -      -
    367B  ASN*     2.6    27.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 364 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337B  PHE*     3.2    13.6    +      -       -      +
    338B  GLY*     3.2    27.7    -      -       -      -
    359B  PHE*     4.1    18.4    -      -       -      -
    361B  GLU*     3.7    16.3    +      -       -      +
    363B  SER*     1.3    84.7    +      -       -      +
    365B  ALA*     1.3    51.4    -      -       -      +
    367B  ASN*     3.0     8.2    +      -       -      +
    368B  ALA*     2.6    37.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 365 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309B  ASN      3.4    23.6    -      -       -      +
    310B  HIS      3.8     4.0    -      -       -      +
    312B  ILE*     3.3    26.2    -      -       +      +
    359B  PHE*     3.4    24.0    -      -       +      -
    361B  GLU      3.9     0.4    +      -       -      -
    362B  VAL      3.1     6.7    +      -       -      +
    364B  SER*     1.3    78.3    -      -       -      +
    366B  THR*     1.3    57.7    +      -       -      +
    368B  ALA*     3.5     4.9    -      -       -      -
    369B  LEU*     2.8    30.0    +      -       -      +
    386B  TYR*     4.1     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 366 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308B  PRO*     4.3     7.3    -      -       -      +
    362B  VAL*     3.0    12.5    +      -       -      +
    363B  SER*     2.8    17.6    +      -       -      +
    365B  ALA*     1.3    77.6    -      -       -      +
    367B  ASN*     1.3    57.4    +      -       -      +
    368B  ALA      3.1     0.4    -      -       -      -
    369B  LEU*     3.2     1.7    +      -       -      +
    370B  ARG*     2.7    38.0    +      -       +      +
    386B  TYR*     2.3    35.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 367 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337B  PHE*     3.2    17.6    -      -       +      -
    363B  SER*     2.6    30.1    +      -       -      +
    364B  SER*     3.4     6.5    -      -       -      +
    366B  THR*     1.3    80.7    -      -       -      +
    368B  ALA*     1.3    60.3    +      -       -      +
    369B  LEU      3.2     0.7    -      -       -      -
    370B  ARG*     4.4     7.3    -      -       -      +
    371B  SER*     3.0    31.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 368 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312B  ILE*     4.5     3.4    -      -       +      -
    334B  PHE*     3.8    10.1    -      -       +      -
    337B  PHE*     3.4    28.3    -      -       +      -
    359B  PHE*     3.6    24.0    -      -       +      -
    364B  SER      2.6    16.4    +      -       -      +
    365B  ALA*     3.6     6.7    -      -       -      +
    367B  ASN*     1.3    78.6    -      -       -      +
    369B  LEU*     1.3    58.9    +      -       -      +
    372B  MET*     3.3    27.9    -      -       -      +
    384B  ILE*     3.9     2.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 369 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312B  ILE*     4.6     1.8    -      -       +      -
    365B  ALA      2.8    14.9    +      -       -      +
    366B  THR      3.4     4.3    -      -       -      +
    368B  ALA*     1.3    77.7    -      -       -      +
    370B  ARG*     1.3    67.5    +      -       -      +
    373B  GLN*     3.1    49.6    +      -       +      +
    384B  ILE*     3.4    37.7    -      -       +      +
    385B  GLN*     3.8     3.4    -      -       -      +
    386B  TYR*     3.4    54.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 370 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366B  THR*     2.7    24.4    +      -       +      +
    367B  ASN*     4.4     6.3    -      -       -      +
    369B  LEU*     1.3    75.6    -      -       -      +
    371B  SER*     1.3    57.8    +      -       -      +
    436C  ARG*     3.2    31.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 371 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337B  PHE*     3.9    17.5    -      -       -      -
    367B  ASN*     3.0    21.4    +      -       -      -
    370B  ARG*     1.3    80.8    -      -       -      +
    372B  MET*     1.3    65.0    +      -       -      +
    373B  GLN      3.7     0.2    -      -       -      -
    375B  PHE*     5.1     2.3    -      -       -      +
    436C  ARG*     4.4     7.2    +      -       -      +
----------------------------------------------------------
 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