Contacts of the helix formed by residues 337 - 350 (chain N) in PDB entry 4UJ3


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 LYS 337 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335N  PHE      4.2     1.3    -      -       -      -
    336N  SER*     1.3    75.4    -      -       -      +
    338N  SER*     1.3    61.7    +      -       -      +
    339N  GLU*     3.1     5.7    +      -       +      -
    340N  LEU*     3.3    19.5    +      -       +      +
    341N  ALA*     3.3    10.6    +      -       -      +
    380N  ALA      3.7    22.9    -      -       -      +
    381N  LEU*     3.0    10.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 338 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335N  PHE      4.2     7.6    -      -       -      -
    336N  SER      2.9    10.5    +      -       -      -
    337N  LYS*     1.3    72.2    -      -       -      +
    339N  GLU*     1.3    66.6    +      -       -      +
    341N  ALA*     3.6    10.0    -      -       -      +
    342N  SER*     3.3    27.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 339 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337N  LYS*     3.1     2.4    +      -       +      -
    338N  SER*     1.3    80.5    -      -       -      +
    340N  LEU*     1.3    65.9    +      -       -      +
    341N  ALA      3.4     0.3    +      -       -      -
    342N  SER*     3.6     3.8    +      -       -      -
    343N  ALA*     3.5    17.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 340 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337N  LYS*     3.3    14.1    +      -       +      +
    339N  GLU*     1.3    80.1    -      -       -      +
    341N  ALA*     1.3    57.7    +      -       -      +
    343N  ALA*     3.1     9.0    +      -       +      +
    344N  VAL*     2.9    35.3    +      -       +      +
    372N  GLU      5.4     1.1    -      -       -      +
    380N  ALA*     4.0    26.9    -      -       +      +
    381N  LEU*     3.3    29.8    -      -       +      -
    392N  ILE*     5.2     1.3    -      -       +      -
    394N  LEU*     4.0    14.6    -      -       +      -
    401N  TYR*     3.6    46.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 341 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333N  LEU*     3.8    24.5    -      -       -      +
    334N  THR*     5.4     0.2    -      -       -      -
    335N  PHE*     4.4    18.6    -      -       +      +
    337N  LYS      3.3    10.9    +      -       -      +
    338N  SER*     3.6    14.1    -      -       -      +
    339N  GLU      3.2     0.6    -      -       -      -
    340N  LEU*     1.3    75.1    -      -       -      +
    342N  SER*     1.3    59.1    +      -       -      +
    343N  ALA      3.0     4.5    -      -       -      -
    344N  VAL*     2.9    23.9    +      -       -      +
    345N  LEU*     3.0    15.2    +      -       -      +
    381N  LEU*     4.3     4.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 342 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338N  SER*     3.3    15.5    +      -       -      -
    339N  GLU*     3.6     4.2    +      -       -      -
    340N  LEU      3.5     0.2    -      -       -      -
    341N  ALA*     1.3    76.8    -      -       -      +
    343N  ALA*     1.3    60.0    -      -       -      +
    345N  LEU*     4.1    10.3    -      -       -      +
    346N  GLU*     3.5    21.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 343 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339N  GLU      3.5    11.2    +      -       -      +
    340N  LEU*     3.1    17.5    -      -       +      +
    341N  ALA      3.0     0.2    -      -       -      -
    342N  SER*     1.3    80.5    -      -       -      +
    344N  VAL*     1.3    55.4    +      -       -      +
    346N  GLU*     3.3    15.0    -      -       -      +
    347N  ALA*     3.0    24.6    +      -       -      +
    394N  LEU*     3.7    20.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 344 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333N  LEU*     4.8     9.2    -      -       +      -
    335N  PHE*     5.7     1.8    -      -       +      -
    340N  LEU*     2.9    29.7    +      -       +      +
    341N  ALA*     2.9     9.4    +      -       -      +
    343N  ALA*     1.3    71.1    -      -       -      +
    345N  LEU*     1.3    55.7    +      -       -      +
    346N  GLU      3.0     1.8    -      -       -      -
    347N  ALA*     2.9     2.6    +      -       -      +
    348N  VAL*     2.8    47.8    +      -       +      +
    353N  LEU*     4.2    10.8    -      -       +      -
    381N  LEU*     4.5     8.1    -      -       +      -
    392N  ILE*     3.8    23.6    -      -       +      -
    394N  LEU*     4.0    14.6    -      -       +      -
    411N  ILE*     4.2    19.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 345 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325N  TYR*     4.3     8.5    -      -       +      -
    329N  ILE*     4.0    17.5    -      -       +      -
    330N  PHE*     4.4    20.0    -      -       +      -
    333N  LEU*     3.7    33.4    -      -       +      +
    341N  ALA      3.0    13.8    +      -       -      +
    342N  SER*     4.1    10.5    -      -       -      +
    344N  VAL*     1.3    75.2    -      -       -      +
    346N  GLU*     1.3    65.7    +      -       +      +
    348N  VAL*     3.4     2.8    +      -       +      +
    349N  GLU*     3.1    58.3    +      -       +      +
    418N  PHE*     5.5     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 346 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342N  SER      3.5    13.7    +      -       -      +
    343N  ALA*     3.3    15.7    +      -       -      +
    345N  LEU*     1.3    81.7    -      -       +      +
    347N  ALA*     1.3    61.3    +      -       -      +
    349N  GLU*     3.5    14.7    +      -       -      +
    350N  ASN*     3.1    38.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 347 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    343N  ALA      3.0     8.8    +      -       -      +
    344N  VAL      2.9     8.6    +      -       -      +
    346N  GLU*     1.3    78.7    -      -       -      +
    348N  VAL*     1.3    60.0    +      -       -      +
    350N  ASN      3.2     1.6    +      -       -      -
    351N  ASN      3.1     2.6    +      -       -      -
    352N  THR*     3.0    50.3    +      -       +      +
    353N  LEU*     3.3    12.1    +      -       +      +
    394N  LEU*     3.6    33.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 348 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333N  LEU*     4.6     7.4    -      -       +      -
    344N  VAL*     2.8    32.7    +      -       +      +
    345N  LEU*     3.7     7.6    -      -       +      +
    347N  ALA*     1.3    70.9    -      -       -      +
    349N  GLU*     1.3    64.7    +      -       +      +
    351N  ASN*     3.3    12.9    +      -       -      +
    353N  LEU*     3.8    29.8    -      -       +      -
    411N  ILE*     4.5     4.3    -      -       +      +
    414N  VAL*     4.2     9.4    -      -       +      -
    415N  CYS*     3.9    20.6    -      -       -      -
    418N  PHE*     3.7    38.7    -      -       +      +
    422N  ARG*     5.5     1.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 349 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314N  MET*     5.4     4.0    -      -       -      +
    316N  ARG*     5.1     5.5    -      -       -      +
    325N  TYR*     2.9    33.8    +      -       -      +
    345N  LEU*     3.1    40.4    +      -       +      +
    346N  GLU*     3.8    12.3    -      -       -      +
    347N  ALA      3.3     0.2    -      -       -      -
    348N  VAL*     1.3    77.1    -      -       -      +
    350N  ASN*     1.3    66.8    +      -       -      +
    351N  ASN      3.7     0.2    +      -       -      -
    418N  PHE*     4.4    19.8    -      -       +      -
    422N  ARG*     5.1     9.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 350 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    346N  GLU*     3.1    28.9    +      -       -      +
    347N  ALA      3.2     7.4    +      -       -      +
    348N  VAL      3.1     0.4    -      -       -      -
    349N  GLU*     1.3    84.8    -      -       -      +
    351N  ASN*     1.3    69.3    +      -       -      +
    352N  THR*     2.9    20.3    +      -       -      +
----------------------------------------------------------
 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