Contacts of the helix formed by residues 244 - 260 (chain D) in PDB entry 3T79


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 ARG 244 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241D  GLN*     4.1    23.7    +      -       -      +
    242D  TYR      5.1     2.0    +      -       -      +
    243D  PRO*     1.3    76.4    -      -       -      +
    245D  GLU*     1.3    67.3    +      -       -      +
    246D  LEU*     3.4     4.9    -      -       +      +
    247D  THR*     3.4    19.5    -      -       -      +
    248D  LEU*     3.5     6.8    +      -       -      +
      7F    T      3.1    40.2    +      -       -      +
      8F    T      2.0    56.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 245 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153D  PHE*     3.6    31.6    -      -       +      -
    243D  PRO      3.8     1.2    +      -       -      -
    244D  ARG*     1.3    69.6    -      -       -      +
    246D  LEU*     1.3    67.8    +      -       -      +
    247D  THR      3.2     0.2    +      -       -      -
    248D  LEU*     3.3     2.3    +      -       -      +
    249D  GLY*     2.9    19.4    +      -       -      -
    265D  LYS*     3.1    23.9    +      -       -      +
    269D  PHE*     3.5    27.1    -      -       +      +
    270D  GLN*     5.5     2.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 246 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244D  ARG*     3.4     3.8    -      -       +      +
    245D  GLU*     1.3    80.1    -      -       -      +
    247D  THR*     1.3    66.6    +      -       -      +
    249D  GLY*     3.1     5.0    +      -       -      -
    250D  ASN*     2.8    36.4    +      -       +      +
    265D  LYS*     6.0     2.5    -      -       -      +
      6E    T      4.9    20.0    -      -       +      +
      7E    A      3.7    29.6    -      -       -      +
      8E    T      5.7     2.9    -      -       +      +
      7F    T      5.7     5.6    -      -       +      -
      8F    T      4.5    17.3    -      -       +      -
      9F    A      3.8    15.7    -      -       -      +
     10F    T      4.5     3.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 247 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243D  PRO*     5.0     7.9    -      -       +      -
    244D  ARG*     3.4    14.2    +      -       -      +
    245D  GLU      3.2     0.2    -      -       -      -
    246D  LEU*     1.3    78.4    -      -       -      +
    248D  LEU*     1.3    56.9    +      -       +      +
    250D  ASN*     2.5    30.8    +      -       -      +
    251D  TRP*     2.9    51.8    +      -       +      +
      6F    T      3.6    22.2    -      -       -      +
      7F    T      3.0    27.0    +      -       -      +
      8F    T      6.1     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 248 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  LYS*     6.1     1.1    -      -       +      -
    139D  LEU*     3.9    20.0    -      -       +      +
    142D  ASP*     3.3    33.9    -      -       +      +
    153D  PHE*     3.6    26.0    -      -       +      -
    234D  ILE*     6.0     3.1    -      -       +      -
    242D  TYR*     4.7     8.5    -      -       +      -
    243D  PRO*     4.9    17.0    -      -       +      -
    244D  ARG      3.5     6.2    +      -       -      +
    245D  GLU      3.3     5.5    +      -       -      +
    247D  THR*     1.3    78.7    -      -       -      +
    249D  GLY*     1.3    56.0    +      -       -      +
    251D  TRP*     2.7    46.5    +      -       +      +
    252D  TYR*     2.9    18.3    +      -       +      -
    269D  PHE*     3.6    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 249 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245D  GLU      2.9    13.4    +      -       -      -
    246D  LEU*     3.3     7.9    -      -       -      -
    248D  LEU*     1.3    76.8    -      -       -      +
    250D  ASN*     1.3    53.3    +      -       -      +
    253D  PRO*     2.9    22.2    -      -       -      +
    263D  TYR*     4.0     9.8    +      -       -      -
    265D  LYS*     4.4    12.5    -      -       -      +
    269D  PHE*     3.3    18.9    -      -       -      -
      6E    T      5.1     4.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 250 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129D  HIS*     5.8     2.7    -      -       -      -
    246D  LEU*     2.8    22.5    +      -       +      +
    247D  THR*     2.5    21.3    +      -       -      +
    249D  GLY*     1.3    71.3    -      -       -      -
    251D  TRP*     1.3    73.7    +      -       +      +
    253D  PRO*     3.0    14.8    -      -       -      +
    254D  THR*     2.4    26.2    +      -       -      +
      7E    A      5.7     0.7    +      -       -      -
      8E    T      5.4    10.5    -      -       -      +
      7F    T      6.0     4.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 251 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129D  HIS*     3.6    24.5    -      +       +      -
    130D  PHE*     3.1    36.7    -      +       +      -
    135D  ASP*     5.7     1.4    -      -       -      +
    138D  LYS*     6.2     3.9    -      -       +      +
    139D  LEU*     3.1    21.8    -      -       +      -
    243D  PRO*     6.3     0.2    -      -       -      +
    247D  THR*     3.1    35.3    -      -       +      +
    248D  LEU*     2.7    31.4    +      -       +      +
    250D  ASN*     1.3    94.9    -      -       +      +
    252D  TYR*     1.3    64.7    +      -       -      +
    254D  THR*     2.3    29.9    +      -       -      -
    255D  ILE*     3.1     4.3    +      -       -      +
      6F    T      3.1    47.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 252 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139D  LEU*     4.2    19.7    -      -       +      -
    142D  ASP*     3.0    24.5    +      -       -      -
    143D  PHE*     2.9    55.4    -      +       +      -
    146D  LYS*     5.3     0.7    -      -       -      +
    156D  ARG*     4.8     0.5    +      -       -      -
    248D  LEU*     2.9    19.8    +      -       +      +
    251D  TRP*     1.3    78.2    -      -       -      +
    253D  PRO*     1.3    71.7    -      -       +      +
    255D  ILE*     2.8    18.2    +      -       +      +
    256D  PHE*     2.7    45.7    -      +       -      -
    263D  TYR*     3.5    19.1    -      +       +      +
    268D  TRP*     4.1    20.2    -      +       +      +
    269D  PHE*     3.7    22.2    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 253 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249D  GLY      2.9    27.8    -      -       -      +
    250D  ASN*     3.0    24.5    -      -       -      +
    252D  TYR*     1.3    82.4    -      -       +      +
    254D  THR*     1.3    47.9    +      -       -      +
    256D  PHE*     3.1     8.4    +      -       +      +
    257D  LYS*     2.7    47.5    +      -       -      +
    263D  TYR*     4.1    28.7    -      -       +      -
      6E    T      5.3     8.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 254 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125D  LEU*     5.3     5.7    -      -       +      +
    127D  SER*     4.0    28.7    -      -       -      +
    129D  HIS*     5.7     2.5    -      -       +      +
    130D  PHE*     4.5    10.7    -      -       +      -
    250D  ASN*     2.4    20.5    +      -       -      +
    251D  TRP*     2.3    28.2    +      -       -      -
    253D  PRO*     1.3    77.0    -      -       -      +
    255D  ILE*     1.3    56.6    +      -       -      -
    257D  LYS*     3.0    37.7    -      -       +      +
    258D  TYR*     3.4    11.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 255 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113D  ILE*     4.4    10.3    -      -       +      -
    116D  ASN*     5.0     2.9    -      -       +      -
    117D  LEU*     3.7    36.8    -      -       +      -
    125D  LEU*     5.1     8.3    -      -       +      -
    130D  PHE*     4.9     7.3    -      -       +      -
    139D  LEU*     3.7    25.1    -      -       +      -
    143D  PHE*     6.1     0.7    -      -       +      -
    251D  TRP      3.1     2.3    +      -       -      +
    252D  TYR*     2.8    27.6    +      -       +      +
    254D  THR*     1.3    78.7    -      -       -      +
    256D  PHE*     1.3    74.0    -      -       +      +
    258D  TYR*     3.3    17.6    -      -       +      +
    259D  CYS*     2.9    45.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 256 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109D  ILE*     4.6     4.7    -      -       +      -
    113D  ILE*     3.6    23.6    -      -       +      -
    143D  PHE*     3.9    11.4    -      +       -      -
    252D  TYR*     2.7    66.4    +      +       -      -
    253D  PRO      3.1     5.6    +      -       -      +
    255D  ILE*     1.3    79.1    -      -       +      +
    257D  LYS*     1.3    55.3    +      -       -      +
    259D  CYS*     2.9     5.4    +      -       -      +
    260D  GLN      2.3    34.8    +      -       -      -
    261D  LEU*     2.9    30.6    +      -       +      +
    262D  PRO      3.5    20.4    -      -       -      +
    263D  TYR*     3.6    20.2    -      +       +      -
    268D  TRP*     3.8    25.4    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 257 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253D  PRO*     2.7    36.0    +      -       -      +
    254D  THR*     3.0    38.1    -      -       +      +
    256D  PHE*     1.3    70.4    -      -       -      +
    258D  TYR*     1.3    55.1    +      -       -      +
    260D  GLN*     2.5    34.3    +      -       -      +
    261D  LEU      4.4     1.3    +      -       -      -
      7E    A      5.8     2.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 258 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116D  ASN*     4.3    10.3    -      -       +      -
    119D  ASN*     5.2     1.4    +      -       -      -
    121D  SER      4.7     0.2    +      -       -      -
    122D  THR*     3.7    20.4    -      -       +      +
    124D  SER*     2.9    18.6    -      -       -      -
    125D  LEU*     2.9    47.8    -      -       +      -
    254D  THR      3.5    10.5    -      -       -      +
    255D  ILE*     3.3    27.6    -      -       +      +
    256D  PHE      3.3     0.2    -      -       -      -
    257D  LYS*     1.3    83.5    -      -       -      +
    259D  CYS*     1.3    61.9    +      -       -      +
    260D  GLN*     4.3     4.7    +      -       -      +
    395D  ILE*     2.9    51.2    -      -       +      +
    396D  ASP*     2.4    28.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 259 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112D  LYS*     2.3    50.7    +      -       +      +
    113D  ILE*     4.2    10.5    -      -       +      -
    116D  ASN*     3.9    26.2    -      -       -      -
    255D  ILE*     2.9    47.9    +      -       -      +
    256D  PHE*     2.9     6.7    +      -       -      +
    258D  TYR*     1.3    77.1    -      -       -      +
    260D  GLN*     1.3    66.9    +      -       -      +
    261D  LEU*     3.8    13.6    -      -       +      +
    395D  ILE*     4.8     2.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 260 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  LYS*     5.9     0.2    -      -       -      +
    260A  GLN*     2.5    44.2    +      -       -      +
    392A  ALA      4.7     3.1    -      -       -      +
    393A  GLN      6.0     0.5    -      -       -      -
    394A  LEU      4.8     7.1    -      -       -      +
    395A  ILE*     4.9    14.8    -      -       +      +
    112D  LYS*     4.6     3.5    +      -       -      +
    256D  PHE      2.3    17.1    +      -       -      -
    257D  LYS*     2.5    20.2    +      -       -      +
    258D  TYR      4.3     2.9    -      -       -      +
    259D  CYS*     1.3    72.9    +      -       -      +
    261D  LEU*     1.3    63.5    +      -       -      +
    395D  ILE*     4.6    13.5    -      -       -      +
----------------------------------------------------------
 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