Contacts of the helix formed by residues 380 - 394 (chain A) in PDB entry 5KZX


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 SER 380 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378A  TYR      3.3     1.4    +      -       -      -
    379A  SER*     1.3    79.7    +      -       -      +
    381A  THR*     1.3    53.8    +      -       -      +
    382A  ALA*     3.5     9.9    +      -       -      +
    383A  ILE*     3.2    30.4    +      -       -      +
    384A  THR*     2.7    35.8    +      -       -      -
    420A  GLY*     3.4    22.7    -      -       -      -
    421A  PHE*     3.5     8.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 381 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    380A  SER*     1.3    69.4    -      -       -      +
    382A  ALA*     1.3    58.3    +      -       -      +
    384A  THR*     3.6     0.7    -      -       -      -
    385A  ARG*     2.7    55.7    +      -       -      +
    420A  GLY      2.9    15.6    +      -       -      +
    421A  PHE*     3.7    28.2    -      -       +      -
    423A  ASP*     2.6    30.9    +      -       -      +
    424A  PHE*     3.9    14.4    -      -       -      -
    427A  MET*     3.8    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 382 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    380A  SER*     3.3     9.1    +      -       -      +
    381A  THR*     1.3    82.3    +      -       -      +
    383A  ILE*     1.3    62.3    -      -       +      +
    385A  ARG*     3.4    14.4    +      -       -      +
    386A  GLN*     3.1    33.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 383 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377A  GLY      4.8     2.7    -      -       -      +
    378A  TYR*     3.9    33.0    -      -       +      -
    379A  SER*     3.5    24.7    -      -       -      +
    380A  SER*     3.2    19.5    +      -       -      +
    382A  ALA*     1.3    77.7    -      -       +      +
    384A  THR*     1.3    63.0    -      -       -      +
    386A  GLN*     3.1    32.1    +      -       -      +
    387A  VAL*     3.3     8.8    +      -       -      +
      1D  NAG      3.6    11.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 384 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378A  TYR*     3.6     9.0    +      -       +      +
    380A  SER      2.7    23.3    +      -       -      -
    381A  THR      3.2     4.7    +      -       -      -
    383A  ILE*     1.3    76.5    -      -       -      +
    385A  ARG*     1.3    62.0    +      -       -      +
    387A  VAL*     3.2    23.5    +      -       -      +
    388A  VAL*     3.7     7.6    +      -       -      +
    401A  GLN*     3.5    34.5    -      -       +      +
    403A  ASN*     3.1    30.5    +      -       -      +
    421A  PHE*     4.1     0.7    -      -       -      -
    427A  MET*     3.7    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 385 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381A  THR*     2.7    50.0    +      -       -      +
    382A  ALA*     3.6    11.3    -      -       -      +
    384A  THR*     1.3    73.9    -      -       -      +
    386A  GLN*     1.3    56.0    +      -       -      +
    388A  VAL*     3.3    10.2    +      -       -      +
    389A  GLU*     3.0    27.0    +      -       -      +
    423A  ASP*     2.7    32.3    +      -       -      -
    426A  ALA*     4.3     1.6    -      -       -      +
    427A  MET*     3.7    28.5    -      -       +      +
    430A  GLU*     2.9    37.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 386 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382A  ALA*     3.1    25.1    +      -       -      +
    383A  ILE*     3.1    21.5    +      -       -      +
    385A  ARG*     1.3    72.9    -      -       -      +
    387A  VAL*     1.3    55.1    +      -       -      +
    389A  GLU*     4.1    16.8    -      -       -      +
    390A  ASN*     2.8    41.4    +      -       -      +
      1D  NAG      2.9    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 387 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373A  LEU*     3.3    34.8    -      -       +      -
    378A  TYR*     3.5    40.6    -      -       +      +
    383A  ILE      3.5    13.5    -      -       -      +
    384A  THR*     3.2    12.0    +      -       -      +
    386A  GLN*     1.3    74.4    -      -       -      +
    388A  VAL*     1.3    58.6    +      -       -      +
    390A  ASN*     3.2     1.7    +      -       -      -
    391A  MET*     2.8    34.8    +      -       +      +
    398A  LEU*     4.9     0.2    -      -       +      -
    401A  GLN*     3.3    17.3    -      -       -      +
    685A  TYR*     3.7    14.4    -      -       +      +
      1D  NAG      3.9     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 388 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384A  THR      3.7     7.2    +      -       -      +
    385A  ARG*     3.3    10.0    +      -       -      +
    387A  VAL*     1.3    76.3    -      -       -      +
    389A  GLU*     1.3    54.9    +      -       -      +
    391A  MET*     3.4     1.7    +      -       -      +
    392A  THR*     2.8    46.8    +      -       -      +
    398A  LEU*     4.0    15.7    -      -       +      -
    401A  GLN*     3.6    22.2    -      -       +      +
    431A  LEU*     3.8    27.8    -      -       +      -
    436A  ARG*     4.1    26.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 389 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385A  ARG      3.0    16.0    +      -       -      +
    386A  GLN*     3.6    19.0    +      -       -      +
    387A  VAL      3.3     0.2    -      -       -      -
    388A  VAL*     1.3    77.8    -      -       -      +
    390A  ASN*     1.3    62.1    +      -       -      +
    392A  THR*     3.4     5.0    +      -       -      -
    393A  ARG*     2.9    53.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 390 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386A  GLN*     2.8    23.3    +      -       -      +
    389A  GLU*     1.3    75.1    -      -       -      +
    391A  MET*     1.3    63.7    +      -       -      +
    393A  ARG*     2.7    34.9    +      -       -      +
    394A  ALA*     3.4    23.4    +      -       -      +
    685A  TYR*     3.6    32.5    -      -       +      +
      1D  NAG      1.4    62.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 391 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371A  PHE*     3.6    24.9    -      -       +      -
    373A  LEU*     4.0    15.5    -      -       +      -
    387A  VAL      2.8    23.9    +      -       -      +
    388A  VAL      3.7     4.3    -      -       -      +
    390A  ASN*     1.3    71.5    -      -       -      +
    392A  THR*     1.3    63.7    +      -       -      +
    394A  ALA      3.3     3.3    +      -       -      -
    395A  HIS      3.1     4.3    +      -       -      -
    396A  PHE*     2.9    52.8    +      -       +      +
    397A  PRO      3.4    26.9    -      -       -      +
    398A  LEU*     4.0    17.9    -      -       +      -
    684A  PRO*     4.0    18.6    -      -       +      -
    685A  TYR*     3.7    22.0    -      -       +      -
    699A  LEU*     4.8     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 392 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388A  VAL*     2.8    25.6    +      -       -      +
    389A  GLU*     3.8     5.6    -      -       -      -
    391A  MET*     1.3    76.9    -      -       -      +
    393A  ARG*     1.3    63.9    +      -       -      +
    395A  HIS*     3.0    19.4    +      -       -      -
    396A  PHE      4.7     0.9    -      -       -      -
    436A  ARG*     3.4    25.5    +      -       -      +
    831A  LEU*     4.0    25.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 393 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389A  GLU*     2.9    43.3    +      -       +      +
    390A  ASN*     2.7    38.2    +      -       -      +
    392A  THR*     1.3    77.8    -      -       -      +
    394A  ALA*     1.3    58.6    +      -       +      +
    395A  HIS*     3.4    16.3    +      -       -      -
      1D  NAG      3.3    28.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 394 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390A  ASN      3.4    14.2    +      -       -      +
    391A  MET      3.3     1.6    +      -       -      -
    392A  THR      3.1     0.8    -      -       -      -
    393A  ARG*     1.3    78.1    -      -       +      +
    395A  HIS*     1.3    68.0    +      -       -      +
    396A  PHE*     3.3    26.7    +      -       +      -
    685A  TYR*     4.3     5.4    -      -       +      -
    692A  GLN*     3.8    11.7    -      -       -      +
    696A  ARG*     2.8    32.4    +      -       -      +
----------------------------------------------------------
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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