Contacts of the helix formed by residues 432 - 449 (chain D) in PDB entry 1M7X


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 432 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359D  HIS*     5.5     4.7    -      -       -      -
    374D  ILE*     3.7    27.5    -      -       -      +
    377D  TYR*     4.9     5.1    -      -       -      -
    410D  MET      3.3    24.7    +      -       -      +
    411D  ILE      2.6    12.6    +      -       -      +
    413D  ARG*     3.5    30.0    +      -       +      +
    430D  ARG      3.9     1.2    +      -       -      -
    431D  GLU*     1.3    70.1    -      -       -      +
    433D  LEU*     1.3    58.4    +      -       -      +
    434D  GLU*     3.3    12.3    +      -       -      +
    435D  ALA*     2.9    31.7    +      -       -      +
    436D  ILE*     2.9    30.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 433 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413D  ARG*     3.8     9.0    -      -       -      +
    431D  GLU*     3.2    28.5    +      -       +      +
    432D  ASN*     1.3    71.1    +      -       -      +
    434D  GLU*     1.3    57.0    +      -       +      +
    436D  ILE*     3.3     9.7    +      -       +      +
    437D  GLU*     2.7    38.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 434 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359D  HIS*     3.2    31.1    +      -       -      -
    376D  ASN*     3.4     4.6    -      -       -      +
    377D  TYR*     3.8     8.8    +      -       +      +
    378D  GLY*     3.3    35.4    +      -       -      +
    413D  ARG*     5.2     6.9    +      -       -      +
    432D  ASN*     3.3     7.7    +      -       -      +
    433D  LEU*     1.3    79.2    -      -       +      +
    435D  ALA*     1.3    52.0    +      -       -      +
    437D  GLU*     3.7     5.8    -      -       -      +
    438D  PHE*     2.8    33.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 435 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377D  TYR*     3.9    22.4    -      -       +      +
    410D  MET*     3.2    35.6    -      -       +      +
    432D  ASN*     2.9    23.6    +      -       -      +
    434D  GLU*     1.3    75.1    -      -       -      +
    436D  ILE*     1.3    61.5    +      -       -      +
    438D  PHE*     3.1     5.3    +      -       -      +
    439D  LEU*     2.9    34.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 436 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    411D  ILE*     3.3    35.7    -      -       +      -
    431D  GLU*     4.1    30.3    -      -       +      +
    432D  ASN      2.9    23.6    +      -       -      +
    433D  LEU*     3.8    11.0    -      -       +      +
    435D  ALA*     1.3    71.7    -      -       -      +
    437D  GLU*     1.3    63.9    +      -       -      +
    438D  PHE      3.3     0.2    +      -       -      -
    439D  LEU*     3.3     5.2    +      -       -      +
    440D  ARG*     3.1    60.2    +      -       -      +
    463D  PHE*     4.3    16.6    -      -       +      -
    475D  LEU*     4.2    11.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 437 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433D  LEU      2.7    19.0    +      -       -      +
    434D  GLU*     3.8     6.7    -      -       -      +
    436D  ILE*     1.3    79.2    -      -       -      +
    438D  PHE*     1.3    60.4    +      -       -      +
    440D  ARG*     3.5    30.2    +      -       -      +
    441D  ASN*     3.1    44.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 438 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336D  TRP*     4.5     5.6    -      +       -      -
    338D  PRO*     4.4    13.5    -      -       +      -
    377D  TYR*     3.7    38.1    -      +       +      +
    383D  SER*     3.7    32.3    -      -       -      -
    386D  LEU*     3.4    36.8    -      -       +      -
    387D  VAL*     3.9    11.2    -      -       +      -
    410D  MET*     4.3    10.1    -      -       +      -
    434D  GLU      2.8    16.5    +      -       -      +
    435D  ALA      3.1     7.6    +      -       -      +
    437D  GLU*     1.3    76.3    -      -       -      +
    439D  LEU*     1.3    72.6    +      -       +      +
    441D  ASN*     2.9     9.9    +      -       +      +
    442D  THR*     2.8    46.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 439 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336D  TRP*     6.2     1.6    -      -       +      -
    338D  PRO*     5.5     1.8    -      -       +      -
    404D  VAL*     4.8     9.0    -      -       +      -
    407D  VAL*     4.0    17.7    -      -       +      -
    410D  MET*     3.8    31.9    -      -       +      -
    411D  ILE*     3.7    29.4    -      -       +      -
    435D  ALA      2.9    14.7    +      -       -      +
    436D  ILE*     3.7     6.3    -      -       -      +
    438D  PHE*     1.3    83.1    -      -       +      +
    440D  ARG*     1.3    63.7    +      -       -      +
    442D  THR*     3.3     5.5    +      -       -      -
    443D  ASN*     3.1    27.4    +      -       -      +
    475D  LEU*     4.1    12.3    -      -       +      -
    477D  PHE*     3.6    33.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 440 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436D  ILE*     3.1    40.1    +      -       -      +
    437D  GLU*     3.5    33.5    +      -       -      +
    438D  PHE      3.2     0.2    -      -       -      -
    439D  LEU*     1.3    77.4    -      -       -      +
    441D  ASN*     1.3    57.7    +      -       -      +
    443D  ASN*     3.3     0.9    +      -       -      +
    444D  ARG*     2.9    26.4    +      -       -      +
    463D  PHE*     4.9     5.9    -      -       -      -
    470D  GLN*     3.4    30.5    +      -       +      +
    473D  GLY      3.0    22.2    +      -       -      -
    474D  GLY*     3.2    14.7    -      -       -      -
    475D  LEU*     3.1    29.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 441 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383D  SER*     5.7     3.6    -      -       -      +
    387D  VAL*     5.8     1.1    -      -       +      -
    437D  GLU*     3.1    40.3    +      -       -      +
    438D  PHE*     2.9    12.9    +      -       +      +
    440D  ARG*     1.3    75.6    -      -       -      +
    442D  THR*     1.3    63.0    +      -       -      +
    444D  ARG*     2.7    40.0    +      -       -      +
    445D  ILE*     2.8    44.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 442 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336D  TRP*     3.7    33.0    -      -       +      -
    387D  VAL*     3.7    17.1    -      -       +      +
    390D  ALA*     4.8     2.2    -      -       +      -
    438D  PHE*     2.8    43.0    +      -       -      -
    439D  LEU*     3.6    12.1    -      -       -      -
    440D  ARG      3.3     0.2    -      -       -      -
    441D  ASN*     1.3    78.0    -      -       -      +
    443D  ASN*     1.3    60.0    +      -       -      +
    445D  ILE*     3.4     2.3    +      -       -      +
    446D  LEU*     2.9    50.8    +      -       +      +
    455D  THR*     6.0     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 443 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439D  LEU      3.1     8.5    +      -       -      +
    440D  ARG      3.6     3.6    -      -       -      +
    442D  THR*     1.3    81.1    -      -       -      +
    444D  ARG*     1.3    52.6    +      -       -      +
    446D  LEU*     2.5    31.0    -      -       -      +
    447D  GLY*     4.7     0.2    -      -       -      -
    455D  THR*     2.4    46.0    +      -       -      +
    470D  GLN*     3.7     8.7    -      -       -      +
    475D  LEU      2.5    29.5    -      -       -      +
    476D  GLY      3.7    12.7    +      -       -      +
    477D  PHE*     3.5    22.3    +      -       -      +
    478D  TRP*     4.7     6.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 444 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440D  ARG      2.9    14.3    +      -       -      +
    441D  ASN*     2.7    35.0    +      -       -      +
    443D  ASN*     1.3    73.6    -      -       -      +
    445D  ILE*     1.3    82.3    +      -       -      +
    446D  LEU      2.4    17.8    -      -       -      +
    448D  GLU*     3.0    51.7    +      -       -      +
    470D  GLN*     3.6    14.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 445 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119D  LEU*     4.2    27.4    -      -       +      -
    380D  ARG*     5.8     6.1    -      -       -      +
    383D  SER*     6.0     0.7    -      -       -      +
    387D  VAL*     3.8    38.1    -      -       +      -
    391D  LEU*     4.3     7.2    -      -       +      -
    441D  ASN*     2.8    30.9    +      -       +      +
    442D  THR      3.8     3.1    -      -       -      +
    444D  ARG*     1.3    95.9    -      -       -      +
    446D  LEU*     1.3    57.7    +      -       -      +
    448D  GLU*     3.3     9.7    -      -       -      +
    449D  GLN*     2.8    49.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 446 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336D  TRP*     5.4     0.4    -      -       +      -
    387D  VAL*     5.5     0.2    -      -       +      -
    390D  ALA*     4.2    18.2    -      -       +      -
    391D  LEU*     3.7    38.8    -      -       +      -
    394D  ILE*     4.2     7.9    -      -       +      -
    402D  LEU*     4.4     8.5    -      -       +      -
    442D  THR*     2.9    41.7    +      -       +      +
    443D  ASN*     2.5    16.7    -      -       -      +
    444D  ARG      2.4    23.2    -      -       -      +
    445D  ILE*     1.3    72.4    -      -       +      +
    447D  GLY*     1.3    59.1    +      -       -      +
    448D  GLU      2.8     5.4    -      -       -      -
    450D  VAL*     3.8    13.9    -      -       +      -
    453D  ALA      5.2     3.1    -      -       -      +
    455D  THR*     3.8    28.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 447 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    443D  ASN      4.7     0.2    -      -       -      -
    446D  LEU*     1.3    71.9    -      -       -      +
    448D  GLU*     1.3    57.7    +      -       -      +
    449D  GLN      3.4     0.7    -      -       -      -
    450D  VAL*     3.4    15.8    -      -       -      +
    451D  SER*     3.1    41.0    -      -       -      -
    452D  GLY      4.8     1.3    -      -       -      -
    453D  ALA      4.8     5.6    +      -       -      -
    478D  TRP*     5.5    12.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 448 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    444D  ARG*     3.0    54.0    +      -       -      +
    445D  ILE*     3.3     6.9    -      -       -      +
    446D  LEU      2.6     7.1    +      -       -      -
    447D  GLY*     1.3    74.0    -      -       -      +
    449D  GLN*     1.3    72.5    +      -       +      +
    451D  SER*     5.4     1.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 449 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119D  LEU*     3.1    28.3    -      -       +      +
    120D  ARG*     2.7    33.3    +      -       -      +
    391D  LEU*     3.9    19.7    -      -       +      -
    395D  GLU*     5.1     3.2    -      -       -      +
    445D  ILE*     2.8    27.2    +      -       +      +
    448D  GLU*     1.3    90.7    +      -       +      +
    450D  VAL*     1.3    61.4    +      -       -      +
    451D  SER      3.6     1.8    +      -       -      -
----------------------------------------------------------
 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