Contacts of the helix formed by residues 436 - 447 (chain u) in PDB entry 6QX2


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 GLY 436 (chain u).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434u  VAL*     3.4     1.9    -      -       -      +
    435u  GLU*     1.3    79.3    -      -       -      +
    437u  ASP*     1.3    57.2    +      -       -      -
    438u  SER*     3.2     4.2    +      -       -      -
    439u  ALA*     3.3     4.1    +      -       -      +
    440u  GLY*     2.8    30.7    +      -       -      -
    456u  PRO*     3.7     8.1    -      -       -      +
    457u  LEU      3.4    11.2    -      -       -      -
   2009w    G      4.0    14.7    +      -       -      -
   2010w    G      3.6     8.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 437 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109r  ASN*     3.4     6.3    +      -       -      -
    119r  ALA*     5.5     1.1    -      -       -      -
    417u  LYS*     5.9     1.6    -      -       -      +
    436u  GLY*     1.3    69.2    -      -       -      -
    438u  SER*     1.3    62.4    +      -       -      +
    440u  GLY*     3.7     5.6    -      -       -      +
    441u  GLY*     3.0    20.0    +      -       -      +
    456u  PRO*     3.9    17.4    -      -       -      +
    457u  LEU      5.0     1.7    -      -       -      +
    458u  ARG*     6.0     0.5    -      -       -      +
   2010w    G      2.7    34.6    +      -       -      +
   2011w    C      3.2    27.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 438 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109r  ASN*     2.9    24.7    +      -       -      +
    119r  ALA*     3.7    23.0    -      -       -      +
    120r  ALA      5.3     0.4    -      -       -      -
    123r  TYR*     3.2    34.0    -      -       -      -
    436u  GLY*     3.9     3.8    -      -       -      -
    437u  ASP*     1.3    72.3    -      -       -      +
    439u  ALA*     1.3    65.0    +      -       -      +
    442u  SER*     3.5    10.0    +      -       -      -
    584u  GLY*     3.7     5.4    +      -       -      -
   2009w    G      2.7    26.2    +      -       -      -
   2010w    G      3.6     5.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 439 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434u  VAL*     4.0    20.9    -      -       +      -
    435u  GLU*     4.5     7.6    -      -       +      +
    436u  GLY      3.3     6.4    +      -       -      +
    438u  SER*     1.3    80.3    +      -       -      +
    440u  GLY*     1.3    62.4    +      -       -      +
    441u  GLY      3.3     0.3    +      -       -      -
    442u  SER*     3.3     2.3    +      -       -      -
    443u  THR*     2.6    33.3    +      -       -      +
    506u  MET      5.8     0.2    -      -       -      +
    508u  ASP*     5.1     3.6    -      -       -      +
    583u  LEU*     3.9    27.4    -      -       +      +
    584u  GLY*     4.0     9.2    -      -       -      +
   2009w    G      5.6     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 440 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434u  VAL*     3.8    15.8    -      -       -      +
    436u  GLY      2.8    21.2    +      -       -      -
    437u  ASP*     3.7     4.5    -      -       -      -
    438u  SER      3.4     0.2    -      -       -      -
    439u  ALA*     1.3    72.4    -      -       -      +
    441u  GLY*     1.3    55.5    +      -       -      +
    443u  THR*     3.4     2.4    +      -       -      -
    444u  LYS*     2.9    39.8    +      -       -      +
    454u  ILE*     4.2     3.7    -      -       -      +
    456u  PRO*     4.2    13.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 441 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109r  ASN*     3.4    19.5    -      -       -      -
    116r  ASP*     4.8    16.3    -      -       -      -
    437u  ASP      3.0    12.0    +      -       -      -
    440u  GLY*     1.3    70.3    -      -       -      +
    442u  SER*     1.3    65.7    +      -       -      +
    444u  LYS*     3.3    10.8    +      -       -      +
    445u  SER*     3.1    25.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 442 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109r  ASN*     3.0    31.4    +      -       -      +
    438u  SER      3.5     3.8    +      -       -      -
    439u  ALA      3.3     8.0    +      -       -      -
    441u  GLY*     1.3    75.6    -      -       -      +
    443u  THR*     1.3    56.4    -      -       -      +
    445u  SER*     3.6     1.1    +      -       -      -
    446u  GLY*     3.2    21.1    +      -       -      -
    583u  LEU      3.6    17.9    +      -       -      -
    586u  MET      3.5    16.8    +      -       -      -
    588u  ALA*     3.2    24.3    -      -       -      +
    591u  LEU*     3.8    12.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 443 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432u  PHE*     4.6     1.8    -      -       +      -
    434u  VAL*     4.0     6.0    -      -       +      +
    439u  ALA*     2.6    25.9    +      -       -      +
    440u  GLY*     3.5     5.8    -      -       -      -
    442u  SER*     1.3    74.2    -      -       -      +
    444u  LYS*     1.3    59.6    +      -       -      +
    446u  GLY*     3.1     1.4    +      -       -      -
    447u  ARG*     2.9    32.6    +      -       -      +
    454u  ILE*     3.4    29.8    -      -       +      -
    506u  MET*     3.7    22.6    -      -       +      +
    591u  LEU*     3.6    16.3    -      -       -      +
    596u  MET*     3.6    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 444 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116r  ASP*     4.1    22.0    -      -       -      +
    417u  LYS      5.9     1.6    -      -       -      +
    419u  ALA*     3.8    28.3    -      -       +      -
    440u  GLY*     2.9    26.1    +      -       -      +
    441u  GLY*     3.3     6.0    +      -       -      +
    443u  THR*     1.3    75.0    -      -       -      +
    445u  SER*     1.3    57.1    +      -       -      +
    447u  ARG*     3.1    25.8    +      -       -      +
    449u  SER*     5.7     0.3    -      -       -      -
    454u  ILE*     3.5    24.7    -      -       +      -
    456u  PRO*     5.6     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 445 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111r  GLY      5.3     1.2    +      -       -      -
    112r  SER*     4.1    21.0    -      -       -      -
    297r  SER*     4.7     4.5    -      -       -      -
    298r  LEU*     4.2    29.8    +      -       -      +
    441u  GLY      3.1    12.8    +      -       -      -
    442u  SER*     3.7     3.8    -      -       -      -
    444u  LYS*     1.3    77.9    -      -       -      +
    446u  GLY*     1.3    61.1    +      -       -      +
    447u  ARG      3.5     4.9    +      -       -      +
    588u  ALA*     3.5    20.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 446 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297r  SER*     5.9     1.2    -      -       -      -
    298r  LEU*     5.4     2.2    -      -       -      -
    442u  SER      3.2     7.9    +      -       -      -
    443u  THR      3.1     6.0    +      -       -      -
    445u  SER*     1.3    78.7    -      -       -      +
    447u  ARG*     1.3    63.9    +      -       -      +
    588u  ALA*     3.6    24.7    -      -       -      +
    591u  LEU*     5.8     0.7    -      -       -      -
    592u  TRP*     3.2    30.3    -      -       -      +
    596u  MET*     4.5     4.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 447 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296r  THR      5.2     2.1    -      -       -      +
    297r  SER*     4.8    11.3    -      -       -      -
    419u  ALA*     2.9    43.1    +      -       -      +
    420u  ASP      3.3    17.8    +      -       -      -
    421u  CYS      4.1     0.4    -      -       -      +
    443u  THR      2.9    13.0    +      -       -      +
    444u  LYS*     3.1    26.9    +      -       -      +
    445u  SER      3.3     5.2    -      -       -      +
    446u  GLY*     1.3    81.7    -      -       -      +
    448u  ASP*     1.3    57.1    +      -       -      +
    449u  SER*     3.6    33.7    +      -       -      +
    452u  GLN*     2.8    50.5    +      -       +      +
    453u  ALA*     3.9     0.6    -      -       -      +
    454u  ILE*     3.5    13.4    -      -       +      +
    592u  TRP*     4.2     1.6    -      -       -      -
    596u  MET*     3.6    14.3    -      -       +      -
----------------------------------------------------------
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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