Contacts of the helix formed by residues 371 - 382 (chain D) in PDB entry 3OX4


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 371 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    358D  LEU*     3.5     9.4    -      -       -      -
    370D  GLY*     1.3    74.2    -      -       -      +
    372D  GLN*     1.3    65.9    +      -       +      +
    373D  LYS*     3.0    26.9    +      -       -      +
    374D  GLU*     3.0    26.8    +      -       -      +
    375D  VAL*     3.1    22.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 372 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351D  PRO*     2.9    15.3    +      -       -      -
    354D  ALA*     3.5     6.1    -      -       -      +
    355D  ASP*     2.8    50.8    -      -       -      +
    358D  LEU*     3.3    17.5    -      -       +      +
    371D  ASP*     1.3    74.0    -      -       +      +
    373D  LYS*     1.3    61.8    +      -       +      +
    375D  VAL*     3.8     0.4    +      -       -      -
    376D  GLU*     2.8    62.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 373 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371D  ASP*     3.0    12.4    +      -       -      +
    372D  GLN*     1.3    78.2    -      -       +      +
    374D  GLU*     1.3    67.2    +      -       +      +
    376D  GLU*     3.1    26.5    +      -       -      +
    377D  GLU*     3.1    19.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 374 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291D  TYR*     2.7    40.3    +      -       +      +
    368D  ARG*     3.5    23.1    +      -       -      -
    369D  GLN      4.6     0.3    -      -       -      +
    370D  GLY*     3.1    14.4    -      -       -      -
    371D  ASP*     3.0    28.0    +      -       -      +
    373D  LYS*     1.3    75.0    -      -       +      +
    375D  VAL*     1.3    60.0    +      -       -      +
    377D  GLU*     2.9    39.4    +      -       -      +
    378D  LEU*     3.0    15.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 375 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261D  TYR*     3.9    30.1    -      -       +      +
    265D  MET*     4.2    10.5    -      -       +      -
    291D  TYR*     5.7     0.2    -      -       -      +
    354D  ALA*     3.7    29.8    -      -       +      +
    357D  ALA*     4.3     8.3    -      -       +      -
    358D  LEU*     4.1    17.5    -      -       +      -
    370D  GLY      5.1     0.2    -      -       -      -
    371D  ASP      3.1    17.5    +      -       -      +
    372D  GLN      4.1     4.0    -      -       -      +
    374D  GLU*     1.3    77.4    -      -       +      +
    376D  GLU*     1.3    61.3    +      -       -      +
    378D  LEU*     3.4     9.4    +      -       +      +
    379D  PHE*     3.2    33.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 376 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350D  VAL*     3.5    18.9    -      -       +      +
    351D  PRO*     2.9    34.4    -      -       -      +
    354D  ALA*     3.4    15.7    -      -       +      -
    372D  GLN*     2.8    39.1    -      -       -      +
    373D  LYS*     3.1    22.2    +      -       -      +
    374D  GLU      3.1     0.2    -      -       -      -
    375D  VAL*     1.3    78.2    -      -       -      +
    377D  GLU*     1.3    62.0    +      -       +      +
    379D  PHE      3.5     0.3    +      -       -      -
    380D  LEU*     3.1    33.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 377 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373D  LYS*     3.1    18.1    +      -       -      +
    374D  GLU*     2.9    23.7    +      -       -      +
    376D  GLU*     1.3    75.4    -      -       +      +
    378D  LEU*     1.3    55.3    +      -       +      +
    380D  LEU*     3.1    11.3    +      -       +      +
    381D  SER*     2.7    37.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 378 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261D  TYR*     4.4     9.6    -      -       +      -
    265D  MET*     3.6    26.0    -      -       +      +
    284D  LEU*     5.5     0.3    -      -       -      +
    287D  HIS*     3.7    20.8    -      -       +      +
    288D  VAL*     4.5     8.5    -      -       +      +
    291D  TYR*     3.6    55.9    -      -       +      -
    374D  GLU      3.0    11.6    +      -       -      +
    375D  VAL*     3.6    13.7    -      -       -      +
    377D  GLU*     1.3    76.5    -      -       +      +
    379D  PHE*     1.3    63.7    +      -       -      +
    381D  SER*     2.6    27.1    +      -       -      +
    382D  ALA*     3.3     8.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 379 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265D  MET*     3.3    61.2    -      -       +      -
    268D  GLN*     4.8     0.2    -      -       +      -
    269D  LEU*     4.1    27.6    -      -       +      -
    284D  LEU*     4.3     2.0    -      -       +      -
    340D  LEU*     3.5    20.8    -      -       +      +
    350D  VAL*     3.9    19.7    -      -       +      -
    353D  LEU*     3.8    21.8    -      -       +      -
    354D  ALA*     3.7    31.9    -      -       +      -
    357D  ALA*     4.3     0.7    -      -       +      -
    375D  VAL*     3.2    17.2    +      -       +      -
    376D  GLU      3.7     7.2    -      -       -      +
    378D  LEU*     1.3    77.1    -      -       -      +
    380D  LEU*     1.3    59.7    +      -       -      +
    382D  ALA*     2.9    22.6    +      -       -      +
    383D  PHE*     3.2    14.6    -      +       +      -
----------------------------------------------------------
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Residues in contact with LEU 380 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347D  LYS*     4.1    31.9    +      -       +      +
    350D  VAL*     3.9    24.7    -      -       +      -
    376D  GLU*     3.1    20.8    +      -       +      +
    377D  GLU*     3.1    11.3    +      -       +      +
    379D  PHE*     1.3    71.3    -      -       -      +
    381D  SER*     1.3    62.4    +      -       -      +
    382D  ALA      3.0     6.3    +      -       -      -
    383D  PHE*     3.1    23.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 381 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287D  HIS*     3.2    32.5    +      -       -      +
    377D  GLU      2.7    17.2    +      -       -      -
    378D  LEU*     2.6    28.7    +      -       -      +
    380D  LEU*     1.3    73.2    -      -       -      +
    382D  ALA*     1.3    56.8    +      -       -      +
    383D  PHE      3.4     2.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 382 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283D  VAL*     4.5     2.1    -      -       +      +
    284D  LEU*     3.7    16.6    -      -       +      -
    287D  HIS*     3.7    24.0    +      -       +      -
    339D  ASN*     3.1    10.5    -      -       -      +
    340D  LEU*     2.8    43.0    +      -       +      -
    378D  LEU      3.8     5.8    -      -       -      +
    379D  PHE      2.9    14.1    +      -       -      +
    381D  SER*     1.3    79.9    +      -       -      +
    383D  PHE*     1.3    57.5    +      -       -      +
----------------------------------------------------------
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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