Contacts of the helix formed by residues 363 - 376 (chain A) in PDB entry 1XV9


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 ASP 363 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315A  HIS*     4.0     2.5    -      -       -      -
    361A  GLN      3.7     2.2    +      -       -      -
    362A  MET*     1.3    75.0    -      -       -      +
    364A  LYS*     1.3    59.5    +      -       -      +
    365A  THR*     3.1    11.5    +      -       -      +
    366A  GLU*     2.8    43.1    +      -       -      +
    367A  LEU*     2.9    24.8    +      -       -      +
    403A  TYR*     2.9    28.4    +      -       -      +
    407A  LYS*     5.3     0.7    +      -       -      -
    408A  TYR*     2.8    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 364 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  LEU*     3.6    16.8    -      -       +      +
    239A  GLU*     3.5    20.9    -      -       +      +
    240A  LEU*     4.3    16.3    -      -       +      +
    243A  GLU*     3.1    33.5    +      -       -      +
    315A  HIS*     3.4    28.4    +      -       +      +
    363A  ASP*     1.3    73.5    -      -       -      +
    365A  THR*     1.3    55.8    +      -       -      +
    367A  LEU*     3.6     6.7    -      -       +      +
    368A  GLY      3.0    19.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 365 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  VAL*     3.1    32.4    -      -       +      +
    235A  ILE*     4.0     3.0    -      -       -      +
    236A  LEU*     3.1    42.7    -      -       -      +
    363A  ASP*     3.0     9.9    +      -       -      +
    364A  LYS*     1.3    74.8    -      -       -      +
    366A  GLU*     1.3    69.2    +      -       -      +
    368A  GLY*     3.3     2.4    +      -       -      -
    369A  CYS*     3.0    26.9    +      -       -      -
    403A  TYR*     3.2    33.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 366 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362A  MET*     2.9    31.7    -      -       +      +
    363A  ASP*     2.8    25.7    +      -       -      +
    365A  THR*     1.3    73.1    -      -       -      +
    367A  LEU*     1.3    68.5    +      -       -      +
    369A  CYS*     3.3     4.0    +      -       -      +
    370A  LEU*     3.1    22.5    +      -       -      +
    400A  LEU*     4.4    11.7    -      -       +      +
    403A  TYR*     4.2    11.2    -      -       +      -
    404A  CYS*     4.2     3.7    -      -       -      -
    408A  TYR*     3.4    10.9    -      -       -      -
    414A  ARG*     2.6    49.0    +      -       -      -
    418A  LEU*     3.7    21.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 367 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239A  GLU*     3.4    18.8    -      -       -      +
    311A  ALA*     3.6    18.6    -      -       +      +
    312A  SER*     4.8    11.4    -      -       -      +
    315A  HIS*     3.3    38.4    -      -       +      +
    357A  MET*     4.7     3.6    -      -       +      -
    362A  MET*     3.1    34.8    -      -       +      +
    363A  ASP      2.9     9.5    +      -       -      +
    364A  LYS*     3.6    11.0    -      -       +      +
    366A  GLU*     1.3    76.0    -      -       -      +
    368A  GLY*     1.3    53.5    +      -       -      +
    370A  LEU*     2.8    29.4    +      -       +      +
    371A  ARG*     2.8    23.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 368 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  ILE*     3.5    24.5    -      -       -      +
    239A  GLU*     3.0    23.4    +      -       -      -
    282A  TRP*     4.2     3.9    -      -       -      -
    364A  LYS      3.0     6.9    +      -       -      -
    365A  THR      3.3     0.6    +      -       -      -
    366A  GLU      3.3     0.4    -      -       -      -
    367A  LEU*     1.3    79.2    -      -       -      +
    369A  CYS*     1.3    55.4    +      -       -      +
    371A  ARG*     3.4     3.5    +      -       -      +
    372A  ALA*     2.9    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 369 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  VAL*     5.1     5.6    -      -       -      -
    235A  ILE*     3.8    21.0    -      -       -      +
    365A  THR*     3.0    25.4    +      -       -      -
    366A  GLU      3.7     3.1    -      -       -      +
    367A  LEU      3.2     0.2    -      -       -      -
    368A  GLY*     1.3    74.0    -      -       -      +
    370A  LEU*     1.3    59.0    +      -       -      +
    372A  ALA*     3.4     7.1    -      -       -      +
    373A  ILE*     2.9    34.3    +      -       -      +
    396A  VAL*     3.8     7.7    -      -       +      +
    399A  SER*     5.2     0.7    -      -       -      -
    400A  LEU*     3.3    54.7    -      -       +      -
    403A  TYR*     5.8     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 370 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311A  ALA*     6.4     2.7    -      -       +      -
    362A  MET*     5.1    11.7    -      -       -      -
    366A  GLU      3.1    11.9    +      -       -      +
    367A  LEU*     2.8    13.3    +      -       +      +
    369A  CYS*     1.3    75.9    -      -       -      +
    371A  ARG*     1.3    62.5    +      -       +      +
    372A  ALA      2.9     5.7    +      -       -      -
    373A  ILE*     3.1    34.3    +      -       +      +
    374A  VAL*     3.1    18.5    +      -       +      +
    400A  LEU*     3.9    14.1    -      -       +      -
    418A  LEU*     3.3    31.4    -      -       +      +
    419A  LEU*     4.0    12.8    -      -       +      -
    421A  ARG*     5.4     4.9    -      -       +      -
    422A  LEU*     4.3    21.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 371 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239A  GLU*     3.9    14.0    +      -       -      +
    242A  VAL*     4.4    12.5    -      -       -      +
    279A  LEU*     3.4    27.3    -      -       -      +
    282A  TRP*     3.0    65.1    -      -       +      +
    308A  LEU*     3.4    57.7    +      -       -      +
    309A  LEU*     3.9     5.9    -      -       -      +
    311A  ALA*     4.7     8.3    -      -       +      +
    312A  SER*     3.8    26.9    +      -       -      +
    367A  LEU*     2.8    37.3    +      -       +      +
    368A  GLY      3.9     2.0    -      -       -      +
    370A  LEU*     1.3    71.8    -      -       +      +
    372A  ALA*     1.3    58.8    +      -       -      +
    374A  VAL*     4.1     3.6    -      -       -      -
    375A  LEU      3.5     4.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 372 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  ILE*     5.4     4.3    -      -       +      -
    282A  TRP*     3.7    11.9    -      -       +      -
    286A  ILE*     4.5    19.1    -      -       +      -
    368A  GLY      2.9    17.7    +      -       -      +
    369A  CYS*     3.4     8.5    -      -       -      +
    370A  LEU      2.9     0.2    -      -       -      -
    371A  ARG*     1.3    76.1    -      -       -      +
    373A  ILE*     1.3    57.4    +      -       -      +
    374A  VAL      3.1     1.6    -      -       -      -
    375A  LEU*     2.7    31.6    +      -       -      +
    376A  PHE*     2.9    13.3    +      -       +      -
    396A  VAL*     4.7    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 373 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369A  CYS      2.9    28.5    +      -       -      +
    370A  LEU*     3.1    25.3    +      -       +      +
    372A  ALA*     1.3    75.6    -      -       -      +
    374A  VAL*     1.3    62.2    +      -       +      +
    376A  PHE*     3.1    28.7    -      -       -      +
    377A  ASN*     3.9     1.4    +      -       -      -
    393A  ARG*     4.0    24.8    -      -       +      +
    396A  VAL*     3.7    17.3    -      -       +      -
    397A  TYR*     4.0    28.3    -      -       +      +
    400A  LEU*     4.0    14.8    -      -       +      -
    419A  LEU*     4.2     6.5    -      -       +      -
    422A  LEU*     5.2    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 374 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300A  LEU      5.0     2.8    -      -       -      +
    303A  ALA      5.3     2.4    -      -       -      +
    304A  GLY*     4.1    18.1    -      -       -      +
    307A  GLU*     4.2    19.5    -      -       +      +
    308A  LEU*     3.3    28.5    -      -       +      -
    370A  LEU      3.1    18.7    +      -       -      +
    371A  ARG*     4.0     2.2    -      -       -      +
    372A  ALA      3.1     0.8    -      -       -      -
    373A  ILE*     1.3    74.0    -      -       -      +
    375A  LEU*     1.3    67.4    +      -       -      +
    376A  PHE      3.2     0.5    +      -       -      -
    377A  ASN*     3.5    17.7    +      -       -      +
    422A  LEU*     4.9    12.8    -      -       +      -
    425A  LEU*     4.2    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 375 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282A  TRP*     3.5    28.3    -      -       +      -
    283A  ALA*     4.2     9.4    -      -       -      -
    286A  ILE*     4.4    15.5    -      -       +      -
    289A  PHE*     4.0    31.0    -      -       +      -
    300A  LEU*     3.1    45.1    -      -       -      +
    301A  LEU*     3.4    33.0    -      -       +      -
    308A  LEU*     4.3     7.0    -      -       +      -
    371A  ARG      3.5     9.0    +      -       -      +
    372A  ALA      2.7    17.6    +      -       -      +
    374A  VAL*     1.3    77.6    -      -       -      +
    376A  PHE*     1.3    61.5    +      -       +      -
    377A  ASN      3.3     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 376 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  MET*     4.2    14.8    -      -       +      -
    286A  ILE*     4.2    20.2    -      -       +      -
    287A  PRO      4.1    14.1    -      -       -      -
    289A  PHE*     4.4    14.1    -      +       +      -
    292A  LEU*     4.3    13.5    -      -       +      -
    300A  LEU*     4.6     3.4    -      -       +      -
    372A  ALA*     2.9    18.2    +      -       +      +
    373A  ILE*     3.1    15.0    +      -       -      +
    374A  VAL      3.1     0.4    -      -       -      -
    375A  LEU*     1.3    84.4    -      -       +      +
    377A  ASN*     1.3    58.6    +      -       -      +
    378A  PRO*     3.1    13.1    -      -       -      +
    389A  VAL*     4.0    15.9    -      -       +      +
    392A  LEU*     3.6    46.9    -      -       +      -
    393A  ARG*     3.2    30.5    -      -       +      -
    396A  VAL*     4.3    13.5    -      -       +      -
----------------------------------------------------------
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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