Contacts of the helix formed by residues 371 - 387 (chain A) in PDB entry 4Z4H


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 371 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370A  ARG*     1.3    78.3    -      -       -      +
    372A  ALA*     1.3    59.6    +      -       -      +
    373A  PRO*     3.5     7.7    -      -       -      +
    374A  ASP*     3.2    33.0    +      -       -      +
    375A  ARG*     2.9    23.2    +      -       -      +
    726A  LYS      4.5     5.2    -      -       -      -
    727A  SER*     3.6    21.1    -      -       -      +
    758A  GLY*     4.0     7.9    -      -       -      +
    759A  THR*     3.9     1.1    -      -       -      -
----------------------------------------------------------
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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
----------------------------------------------------------
    371A  SER*     1.3    70.6    -      -       -      +
    373A  PRO*     1.3    61.4    -      -       +      +
    375A  ARG*     3.3     1.0    +      -       -      +
    376A  GLN      2.9    23.4    +      -       -      -
    715A  LEU      5.7     0.9    -      -       -      +
    716A  PHE*     3.3    20.8    -      -       +      -
    727A  SER      2.9    20.6    +      -       -      +
    728A  GLY      3.4    13.7    -      -       -      +
    729A  ASN*     3.5    22.9    -      -       -      +
    758A  GLY      3.6     3.4    +      -       -      -
    759A  THR*     3.5    16.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 373 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371A  SER*     3.5    11.7    -      -       -      +
    372A  ALA*     1.3    93.8    -      -       +      +
    374A  ASP*     1.3    64.2    +      -       -      +
    376A  GLN*     3.2    15.0    +      -       +      +
    377A  GLU*     3.0    23.0    +      -       -      +
    723A  ARG*     3.7    46.9    -      -       -      +
    727A  SER      3.3    12.8    -      -       -      +
    728A  GLY*     3.9     5.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 374 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370A  ARG*     4.1    14.4    -      -       +      +
    371A  SER*     3.2    30.6    +      -       -      +
    372A  ALA      3.3     0.4    -      -       -      -
    373A  PRO*     1.3    81.3    -      -       -      +
    375A  ARG*     1.3    57.7    +      -       -      +
    377A  GLU*     3.3     7.2    +      -       -      +
    378A  GLU*     3.0    33.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 375 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  ASP*     2.6    43.0    +      -       -      -
    219A  VAL*     3.5    21.0    +      -       +      +
    368A  THR      5.9     0.8    +      -       -      -
    370A  ARG*     4.2    14.6    +      -       +      +
    371A  SER      2.9     9.4    +      -       -      +
    372A  ALA      3.7     2.2    -      -       -      +
    374A  ASP*     1.3    73.3    -      -       -      +
    376A  GLN*     1.3    65.6    +      -       -      +
    378A  GLU*     3.2     8.4    +      -       -      +
    379A  ILE*     3.0    31.7    +      -       +      +
    714A  ARG*     4.4    11.3    -      -       -      +
    716A  PHE*     4.1     9.6    -      -       +      -
    759A  THR*     3.1    47.8    +      -       -      +
      6B    A      5.3     0.2    +      -       -      -
      7B    U      3.8    30.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 376 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLN*     3.1    35.2    +      -       -      +
    372A  ALA      2.9    13.1    +      -       -      +
    373A  PRO*     3.3    14.4    -      -       -      +
    375A  ARG*     1.3    77.3    -      -       -      +
    377A  GLU*     1.3    62.2    +      -       -      +
    379A  ILE      3.4     0.2    +      -       -      -
    380A  SER*     3.1    30.1    +      -       -      +
    405A  MET*     3.6    12.3    -      -       +      +
    716A  PHE*     3.6    47.5    -      -       +      +
    717A  CYS      4.2     6.2    +      -       -      +
    723A  ARG*     3.9    20.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 377 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373A  PRO      3.0    12.6    +      -       -      +
    374A  ASP*     3.7     8.7    -      -       -      +
    375A  ARG      3.2     0.2    -      -       -      -
    376A  GLN*     1.3    75.1    -      -       -      +
    378A  GLU*     1.3    57.8    +      -       +      +
    380A  SER*     4.4     6.3    -      -       -      -
    381A  LYS*     2.8    67.8    +      -       +      +
    384A  ARG*     3.2    26.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 378 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  VAL*     3.9    20.5    -      -       +      +
    370A  ARG*     3.2    40.6    +      -       +      +
    374A  ASP*     3.0    21.7    +      -       +      +
    375A  ARG*     3.2     8.3    +      -       -      +
    377A  GLU*     1.3    75.5    -      -       -      +
    379A  ILE*     1.3    57.5    +      -       -      +
    381A  LYS*     3.9    18.9    +      -       -      +
    382A  LEU*     3.0    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 379 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  ASN*     4.1    17.5    -      -       +      +
     45A  PHE*     4.0    16.6    -      -       +      -
    217A  ILE*     3.9    23.1    -      -       +      +
    218A  ASP*     3.7    24.7    -      -       -      +
    219A  VAL*     4.3    18.8    -      -       +      +
    375A  ARG*     3.0    24.2    +      -       +      +
    378A  GLU*     1.3    73.9    -      -       -      +
    380A  SER*     1.3    65.8    +      -       -      +
    382A  LEU*     3.2     4.9    +      -       -      +
    383A  MET*     3.0    22.3    +      -       -      +
    405A  MET*     3.7    19.1    -      -       +      -
    714A  ARG*     5.1     0.2    -      -       +      -
    716A  PHE*     4.0    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 380 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  PHE*     5.4     3.6    -      -       -      -
    376A  GLN*     3.1    19.4    +      -       -      +
    377A  GLU*     3.7    10.0    +      -       -      -
    379A  ILE*     1.3    79.6    -      -       -      +
    381A  LYS*     1.3    62.9    +      -       -      +
    383A  MET*     3.2     6.5    +      -       -      +
    384A  ARG*     3.1    48.3    +      -       -      +
    403A  ASP      5.1     1.9    -      -       -      +
    405A  MET*     3.8    16.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 381 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377A  GLU*     2.8    47.5    +      -       +      +
    378A  GLU*     3.9    19.2    +      -       -      +
    380A  SER*     1.3    72.8    -      -       -      +
    382A  LEU*     1.3    63.4    +      -       -      +
    384A  ARG*     3.4    24.0    +      -       -      +
    385A  SER*     3.1    25.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 382 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  GLY      5.0     0.7    -      -       -      +
    202A  PHE*     3.4    47.8    -      -       +      -
    217A  ILE*     3.8    21.1    -      -       +      -
    219A  VAL*     3.7    19.7    -      -       +      -
    378A  GLU      3.0    18.7    +      -       -      +
    379A  ILE*     3.2     4.7    +      -       -      +
    381A  LYS*     1.3    76.4    -      -       -      +
    383A  MET*     1.3    54.1    +      -       -      +
    385A  SER*     3.4     6.0    +      -       -      -
    386A  ALA*     2.6    43.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 383 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  PHE*     3.5    50.3    -      -       +      -
    215A  LEU*     4.8     0.7    -      -       +      -
    217A  ILE*     3.7    27.8    -      -       +      -
    379A  ILE      3.0    14.4    +      -       -      +
    380A  SER*     3.2     5.4    +      -       -      +
    382A  LEU*     1.3    75.4    -      -       -      +
    384A  ARG*     1.3    65.8    +      -       -      +
    386A  ALA*     3.2    14.8    +      -       -      +
    387A  ASP*     3.4     6.4    +      -       -      -
    388A  PHE*     3.4    39.2    -      -       +      -
    401A  VAL*     4.0    10.1    -      -       +      +
    402A  LYS      3.9    11.4    -      -       -      +
    403A  ASP*     4.4    14.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 384 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377A  GLU*     3.2    26.9    +      -       -      -
    380A  SER*     3.1    32.6    +      -       -      +
    381A  LYS*     3.4    26.6    -      -       -      +
    382A  LEU      3.4     0.2    -      -       -      -
    383A  MET*     1.3    77.4    -      -       -      +
    385A  SER*     1.3    62.1    +      -       -      +
    387A  ASP*     3.6    16.3    +      -       -      +
    403A  ASP*     4.6    22.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 385 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381A  LYS      3.1    17.6    +      -       -      -
    382A  LEU*     3.5     5.4    -      -       -      -
    384A  ARG*     1.3    74.4    -      -       -      +
    386A  ALA*     1.3    65.3    +      -       -      +
    387A  ASP*     3.3     5.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 386 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  PHE*     6.5     0.9    -      -       +      -
    382A  LEU*     2.6    29.7    +      -       +      +
    383A  MET*     3.2    11.8    +      -       -      +
    385A  SER*     1.3    76.2    -      -       -      +
    387A  ASP*     1.3    70.8    +      -       -      +
    388A  PHE*     3.3    32.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 387 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383A  MET      3.4     8.2    +      -       -      -
    384A  ARG      3.6    11.2    +      -       -      +
    385A  SER      3.3     8.2    -      -       -      +
    386A  ALA*     1.3    81.8    -      -       -      +
    388A  PHE*     1.3    62.9    +      -       -      +
    389A  ASN*     3.2     7.9    +      -       -      +
    390A  THR*     2.6    49.4    +      -       -      +
    391A  ASP*     3.9     3.1    +      -       -      +
----------------------------------------------------------
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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