Contacts of the helix formed by residues 388 - 403 (chain X) in PDB entry 5A31


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 388 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    356X  SER*     5.6     0.4    -      -       -      +
    383X  LEU*     2.9    24.9    +      -       +      +
    386X  MET*     3.7    36.0    -      -       +      +
    387X  GLY*     1.3    75.8    -      -       -      +
    389X  VAL*     1.3    57.6    +      -       -      +
    390X  GLN      3.5     1.6    -      -       -      -
    391X  GLU*     3.0    46.3    +      -       +      +
    392X  ALA*     2.9    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 389 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384X  ARG*     5.5    10.8    -      -       +      +
    387X  GLY      3.0    13.2    +      -       -      +
    388X  ARG*     1.3    69.4    -      -       -      +
    390X  GLN*     1.3    66.3    +      -       +      +
    392X  ALA*     3.2     7.3    +      -       +      +
    393X  ILE*     2.8    52.7    +      -       +      +
    419X  ALA*     5.9     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 390 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388X  ARG      3.5     0.2    -      -       -      -
    389X  VAL*     1.3    83.8    -      -       +      +
    391X  GLU*     1.3    62.3    +      -       -      +
    393X  ILE*     3.4    14.5    +      -       +      +
    394X  ILE*     3.4    26.9    +      -       +      +
    397X  ARG*     5.2     2.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 391 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359X  LEU*     3.4    31.9    -      -       +      +
    383X  LEU*     3.9     5.1    -      -       +      +
    388X  ARG*     3.0    55.5    +      -       +      +
    389X  VAL      3.3     0.4    -      -       -      -
    390X  GLN*     1.3    77.1    -      -       -      +
    392X  ALA*     1.3    61.1    +      -       -      +
    394X  ILE*     2.9    35.2    -      -       +      +
    395X  HIS*     3.1    10.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 392 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    380X  GLY      3.5    21.8    -      -       -      +
    383X  LEU*     3.5    16.7    -      -       +      +
    384X  ARG*     3.8     9.9    -      -       +      +
    388X  ARG      2.9    17.5    +      -       -      +
    389X  VAL*     3.5     9.6    -      -       +      +
    391X  GLU*     1.3    76.0    -      -       -      +
    393X  ILE*     1.3    63.3    +      -       +      +
    395X  HIS*     3.2    15.6    +      -       -      +
    396X  PHE*     3.1    26.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 393 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389X  VAL*     2.8    47.6    +      -       +      +
    390X  GLN*     3.6    11.7    -      -       +      +
    391X  GLU      3.3     0.2    -      -       -      -
    392X  ALA*     1.3    76.7    -      -       +      +
    394X  ILE*     1.3    63.5    +      -       -      +
    396X  PHE*     3.2    18.4    +      -       +      +
    397X  ARG*     3.3    39.7    +      -       +      +
    416X  CYS*     4.0    33.7    -      -       +      +
    419X  ALA*     5.6     6.7    -      -       +      -
    420X  SER*     6.3     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 394 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390X  GLN*     3.4    14.9    +      -       +      +
    391X  GLU*     2.9    31.4    -      -       +      +
    393X  ILE*     1.3    77.2    -      -       -      +
    395X  HIS*     1.3    75.4    +      -       +      +
    397X  ARG*     3.3    35.3    +      -       -      +
    398X  GLU*     3.1    28.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 395 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359X  LEU*     3.7    10.0    -      -       +      +
    366X  ILE*     5.7     2.7    -      -       +      -
    376X  LEU*     3.3    41.0    -      -       +      +
    379X  LYS*     3.6    27.9    -      -       +      +
    380X  GLY*     4.2     8.3    -      -       -      -
    383X  LEU*     3.3    28.1    -      -       +      +
    391X  GLU*     3.1    26.1    +      -       -      +
    392X  ALA      3.2     7.7    +      -       -      +
    394X  ILE*     1.3    86.3    -      -       +      +
    396X  PHE*     1.3    59.3    +      -       +      +
    398X  GLU*     3.2    17.7    +      -       -      +
    399X  ALA*     2.8    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 396 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377X  LEU*     3.7    35.2    -      -       +      -
    380X  GLY*     3.7    12.3    -      -       -      -
    381X  ALA*     3.5    30.5    -      -       +      -
    384X  ARG*     5.3    10.5    -      -       +      -
    392X  ALA*     3.1    35.2    +      -       +      -
    393X  ILE*     3.2     9.5    +      -       -      +
    395X  HIS*     1.3    77.4    -      -       -      +
    397X  ARG*     1.3    57.0    +      -       +      +
    399X  ALA*     3.2     5.5    +      -       +      +
    400X  ILE*     2.9    36.3    +      -       +      +
    412X  GLY*     4.8    20.6    -      -       -      -
    413X  LEU*     5.1     1.3    -      -       -      +
    416X  CYS*     4.2    22.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 397 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    765H  ASP*     5.1    17.6    +      -       -      +
    767H  ASP      5.5     9.3    +      -       -      -
    390X  GLN*     5.2     2.0    +      -       -      +
    393X  ILE*     3.3    41.0    +      -       +      +
    394X  ILE*     3.3    31.2    +      -       -      +
    396X  PHE*     1.3    76.7    -      -       +      +
    398X  GLU*     1.3    58.8    +      -       -      +
    400X  ILE*     2.8    30.4    -      -       +      +
    401X  ARG*     3.6     6.9    +      -       -      +
    413X  LEU*     5.1    12.1    -      -       +      -
    416X  CYS*     6.1     2.9    -      -       +      -
    417X  TYR*     5.3     6.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 398 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366X  ILE*     4.5     9.6    -      -       -      +
    376X  LEU*     3.0    34.3    -      -       +      +
    394X  ILE*     3.1    18.6    +      -       -      +
    395X  HIS*     3.2    30.5    +      -       -      +
    397X  ARG*     1.3    73.7    -      -       -      +
    399X  ALA*     1.3    61.6    +      -       -      +
    401X  ARG*     2.9    33.8    -      -       -      +
    402X  LEU*     3.4    13.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 399 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373X  VAL*     4.1    11.1    -      -       +      +
    376X  LEU*     3.6    21.9    -      -       +      +
    377X  LEU*     4.5    17.9    -      -       +      +
    395X  HIS      2.8    21.9    +      -       -      +
    396X  PHE*     3.2    10.7    +      -       +      +
    398X  GLU*     1.3    70.4    -      -       -      +
    400X  ILE*     1.3    65.4    +      -       +      +
    402X  LEU*     3.2     7.4    +      -       -      +
    403X  ALA*     3.1    21.1    +      -       -      +
    409X  CYS*     4.6     6.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 400 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    762H  TRP*     5.6     4.7    -      -       -      +
    765H  ASP*     4.1    19.7    -      -       -      +
    396X  PHE*     2.9    23.1    +      -       +      +
    397X  ARG*     2.8    28.5    -      -       -      +
    399X  ALA*     1.3    71.5    -      -       -      +
    401X  ARG*     1.3    64.7    +      -       +      +
    403X  ALA      3.0    23.6    -      -       -      +
    409X  CYS*     3.2    35.7    -      -       +      +
    410X  TYR*     6.3     1.8    -      -       +      -
    413X  LEU*     3.2    54.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 401 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734H  PRO*     5.3     4.0    +      -       -      +
    735H  LYS*     3.2    53.6    -      -       -      +
    762H  TRP*     5.9     4.2    -      -       -      +
    766H  LEU*     4.6    15.0    -      -       -      +
    397X  ARG      3.8     4.0    -      -       -      +
    398X  GLU*     2.9    39.7    -      -       -      +
    400X  ILE*     1.3    85.9    -      -       +      +
    402X  LEU*     1.3    70.2    +      -       +      +
    403X  ALA*     3.5     2.6    +      -       -      -
    404X  PRO*     4.9     3.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 402 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181X  LYS*     5.6    11.2    -      -       +      +
    366X  ILE*     4.9    10.8    -      -       +      -
    370X  SER*     4.0    23.6    -      -       -      +
    371X  ASN      5.5     1.2    -      -       -      +
    372X  SER      5.7     0.7    -      -       -      +
    373X  VAL*     3.4    27.6    -      -       +      +
    376X  LEU*     3.8    29.2    -      -       +      -
    398X  GLU*     3.4     8.5    -      -       +      +
    399X  ALA      3.2     4.3    +      -       -      +
    401X  ARG*     1.3    87.5    -      -       +      +
    403X  ALA*     1.3    57.4    +      -       -      +
    404X  PRO*     3.5    10.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 403 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373X  VAL*     3.6    28.5    -      -       +      -
    399X  ALA      3.1     9.3    +      -       -      +
    400X  ILE      3.0    17.4    -      -       -      +
    401X  ARG      4.5     1.1    -      -       -      -
    402X  LEU*     1.3    76.2    -      -       -      +
    404X  PRO*     1.4    62.2    -      -       +      +
    405X  CYS      4.2     0.2    +      -       -      -
    406X  ARG*     4.4    11.2    -      -       +      -
    409X  CYS*     3.3    32.9    -      -       +      -
    410X  TYR*     5.2     2.9    +      -       -      -
----------------------------------------------------------
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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