Contacts of the helix formed by residues 365 - 379 (chain P) in PDB entry 3H1I


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 ILE 365 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361P  THR*     2.7    36.5    +      -       +      +
    363P  LEU      3.5     0.4    -      -       -      -
    364P  LEU*     1.3    83.3    -      -       +      +
    366P  LEU*     1.3    82.0    +      -       +      +
    368P  PRO*     2.9    12.9    -      -       -      +
    369P  THR*     2.9    27.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 366 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325P  LEU*     3.3    37.2    -      -       +      -
    328P  LEU*     5.7     2.5    -      -       +      -
    361P  THR*     2.9    28.0    +      -       +      +
    362P  ILE*     3.8    15.9    -      -       +      +
    365P  ILE*     1.3    86.0    -      -       +      +
    367P  PHE*     1.3    57.5    +      -       -      +
    369P  THR*     2.8     5.8    +      -       -      -
    370P  ILE*     2.6    37.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 367 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103P  LEU*     4.3    14.1    -      -       +      -
    305P  ILE*     5.6     2.5    -      -       +      -
    308P  LEU      4.9     8.2    -      -       -      +
    310P  LYS      5.7     0.7    +      -       -      -
    316P  MET*     3.5    33.4    -      -       +      -
    319P  ARG*     5.6     1.6    +      -       -      -
    322P  SER*     3.9    10.0    +      -       -      -
    325P  LEU*     3.8    30.5    -      -       +      -
    326P  PHE*     3.7    21.8    -      +       +      -
    329P  LEU*     4.3    10.5    -      -       +      -
    362P  ILE*     2.9    29.5    +      -       +      +
    363P  LEU*     4.0    30.3    -      -       +      +
    366P  LEU*     1.3    72.4    -      -       -      +
    368P  PRO*     1.3    66.8    -      -       +      +
    370P  ILE*     4.5     1.0    -      -       +      +
    371P  GLY*     3.2    18.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 368 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308P  LEU*     4.4    23.1    -      -       +      +
    310P  LYS*     3.6    31.2    -      -       +      +
    363P  LEU      3.8     9.9    -      -       -      +
    364P  LEU      3.5    16.2    -      -       -      +
    365P  ILE*     2.9    32.1    -      -       -      +
    367P  PHE*     1.3    90.7    -      -       +      +
    369P  THR*     1.3    56.8    +      -       -      +
    372P  THR*     3.1    30.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 369 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    365P  ILE*     2.9    26.6    +      -       +      +
    366P  LEU*     2.8     6.0    +      -       -      -
    368P  PRO*     1.3    75.6    -      -       -      +
    370P  ILE*     1.3    67.4    +      -       +      +
    371P  GLY      2.8     5.6    +      -       -      -
    372P  THR*     2.9    16.2    +      -       -      -
    373P  LEU*     3.0    18.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 370 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321P  LEU*     3.4    43.7    -      -       +      +
    322P  SER*     3.9    15.0    -      -       -      +
    325P  LEU*     3.7    22.0    -      -       +      -
    366P  LEU*     2.6    24.5    +      -       +      +
    367P  PHE*     4.5     2.2    -      -       +      +
    369P  THR*     1.3    75.1    -      -       +      +
    371P  GLY*     1.3    54.3    +      -       -      +
    373P  LEU*     3.8    16.2    -      -       +      +
    374P  GLU*     3.0    27.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 371 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310P  LYS*     4.6     4.3    -      -       -      -
    311P  SER*     4.5     7.1    -      -       -      -
    319P  ARG*     4.7     7.0    -      -       -      -
    322P  SER*     4.7     2.7    +      -       -      -
    367P  PHE      3.2    18.5    +      -       -      -
    368P  PRO      3.8     1.6    -      -       -      -
    369P  THR      2.8     3.0    -      -       -      -
    370P  ILE*     1.3    75.8    -      -       -      +
    372P  THR*     1.3    65.9    +      -       -      +
    374P  GLU*     3.0    30.6    -      -       -      +
    375P  ASN*     3.2    12.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 372 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310P  LYS*     4.0    17.2    -      -       -      +
    368P  PRO      3.1    13.7    +      -       -      -
    369P  THR*     2.9     9.8    +      -       -      -
    371P  GLY*     1.3    72.4    -      -       -      +
    373P  LEU*     1.3    67.8    +      -       -      +
    375P  ASN*     2.9    28.4    +      -       -      +
    376P  LYS*     3.5    29.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 373 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321P  LEU*     4.9     8.7    -      -       +      -
    369P  THR*     3.0    18.1    +      -       +      +
    370P  ILE*     3.8    22.4    -      -       +      +
    372P  THR*     1.3    80.7    -      -       -      +
    374P  GLU*     1.3    62.9    +      -       -      +
    376P  LYS*     3.2    25.4    +      -       +      +
    377P  MET*     3.2    27.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 374 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311P  SER*     4.3     0.8    +      -       -      +
    319P  ARG*     2.8    43.5    -      -       +      +
    321P  LEU*     3.3    12.5    -      -       +      +
    322P  SER*     2.8    37.6    +      -       -      -
    370P  ILE      3.0    19.6    +      -       -      +
    371P  GLY*     3.0    17.6    -      -       -      +
    372P  THR      2.9     1.2    +      -       -      -
    373P  LEU*     1.3    76.5    -      -       -      +
    375P  ASN*     1.3    61.3    +      -       -      +
    377P  MET*     3.3    11.7    +      -       -      +
    378P  LEU*     3.3    24.7    +      -       +      +
     20S  TYR*     3.1    26.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 375 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310P  LYS      3.4    20.8    +      -       -      -
    311P  SER*     3.4     9.5    +      -       -      -
    312P  LYS*     2.9    46.5    +      -       +      +
    313P  GLN*     5.5     1.2    -      -       -      +
    371P  GLY      3.2    16.1    +      -       -      +
    372P  THR*     2.9    18.6    +      -       -      +
    374P  GLU*     1.3    69.1    -      -       -      +
    376P  LYS*     1.3    57.6    +      -       +      +
    377P  MET      3.1     1.6    -      -       -      -
    378P  LEU*     3.1    11.5    +      -       -      +
    379P  ASN      2.7    27.4    +      -       -      -
    380P  TYR*     2.7    23.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 376 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    372P  THR*     4.1    29.1    -      -       +      +
    373P  LEU*     3.2    17.3    +      -       +      +
    375P  ASN*     1.3    78.3    -      -       +      +
    377P  MET*     1.3    61.8    +      -       +      +
    379P  ASN*     3.2    12.7    +      -       -      +
    380P  TYR      4.2    13.7    +      -       -      +
     17S  ARG*     3.5    20.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 377 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321P  LEU*     4.4    15.5    -      -       +      -
    373P  LEU*     3.2    29.9    +      -       +      +
    374P  GLU      3.5     8.7    -      -       -      +
    375P  ASN      3.1     0.6    -      -       -      -
    376P  LYS*     1.3    79.7    -      -       +      +
    378P  LEU*     1.3    61.8    +      -       -      +
    379P  ASN      3.1     0.2    -      -       -      -
     16S  ILE*     3.8    25.4    -      -       +      -
     17S  ARG*     3.4    33.4    -      -       -      +
     19S  TRP*     4.0    17.5    -      -       +      -
     20S  TYR*     3.2    50.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 378 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313P  GLN*     3.6    38.1    -      -       +      +
    318P  PHE      5.4     0.2    -      -       -      +
    374P  GLU*     3.3     8.7    +      -       +      +
    375P  ASN*     3.1    13.3    +      -       -      +
    377P  MET*     1.3    77.9    -      -       -      +
    379P  ASN*     1.3    68.7    +      -       -      +
    380P  TYR*     4.4    19.7    -      -       +      -
     17S  ARG*     5.4     0.7    -      -       -      -
     20S  TYR*     3.6    34.5    -      -       +      +
     21S  TYR*     4.9    11.2    -      -       +      -
     26S  PHE*     4.1    24.7    -      -       +      -
     33S  ARG*     3.2    28.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 379 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375P  ASN      2.7     6.5    +      -       -      -
    376P  LYS*     3.2     9.6    +      -       -      +
    377P  MET      3.1     3.0    -      -       -      -
    378P  LEU*     1.3    83.9    -      -       -      +
    380P  TYR*     1.3    61.8    +      -       -      +
     17S  ARG*     3.4    35.0    +      -       -      +
     33S  ARG*     3.7    16.3    +      -       -      +
     91S  GLU*     4.0    14.8    +      -       -      +
----------------------------------------------------------
 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