Contacts of the helix formed by residues 584 - 595 (chain X) in PDB entry 6AH0


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 584 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384X  GLY      5.0     3.4    +      -       -      -
    385X  LYS*     4.9    10.8    -      -       -      +
    580X  ASP      4.4     2.6    +      -       -      -
    581X  GLU*     3.1    15.5    +      -       -      +
    582X  ALA      3.5     2.1    -      -       -      +
    583X  GLU*     1.3    79.4    -      -       -      +
    585X  PRO*     1.3    52.5    -      -       -      +
    586X  GLU      3.6     2.6    +      -       -      -
    587X  LYS      3.9     1.2    +      -       -      -
    588X  MET*     2.9    31.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 585 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385X  LYS      5.4     1.8    -      -       -      -
    427X  GLN*     5.4     6.1    -      -       -      -
    583X  GLU      3.7     1.6    -      -       -      +
    584X  ASP*     1.3    64.3    -      -       -      +
    586X  GLU*     1.3    61.4    +      -       -      +
    587X  LYS      3.2     2.2    -      -       -      -
    589X  LEU*     2.7    35.5    +      -       -      +
    590X  ALA      3.7     0.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 586 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584X  ASP      3.6     0.8    -      -       -      -
    585X  PRO*     1.3    76.0    -      -       -      +
    587X  LYS*     1.3    57.5    -      -       -      +
    590X  ALA*     4.0     9.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 587 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581X  GLU      5.6     2.2    +      -       -      -
    584X  ASP      3.9     2.2    +      -       -      -
    586X  GLU*     1.3    74.3    -      -       -      +
    588X  MET*     1.3    62.3    +      -       -      +
    589X  LEU      3.3     1.3    -      -       -      -
    590X  ALA*     3.4     2.5    +      -       -      +
    591X  ASN*     3.0    23.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 588 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427X  GLN      2.9    22.8    -      -       -      +
    428X  ASN*     4.7     0.9    -      -       -      -
    581X  GLU      4.9     1.6    +      -       -      -
    582X  ALA*     4.1    11.5    +      -       -      +
    584X  ASP      2.9    18.3    +      -       -      -
    587X  LYS*     1.3    73.8    -      -       -      +
    589X  LEU*     1.3    60.4    +      -       -      +
    591X  ASN*     3.2     2.6    +      -       -      +
    592X  PHE      2.8    23.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 589 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    426X  LEU      4.8     2.9    -      -       -      +
    427X  GLN*     3.7    15.1    +      -       -      +
    585X  PRO*     2.7    28.5    +      -       -      +
    588X  MET*     1.3    69.5    -      -       -      +
    590X  ALA*     1.3    63.3    +      -       -      +
    592X  PHE*     3.1     2.3    +      -       -      +
    593X  GLU*     3.0    20.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 590 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585X  PRO      3.7     4.6    +      -       -      -
    586X  GLU      4.0     7.3    +      -       -      -
    587X  LYS*     3.4     6.9    +      -       -      +
    588X  MET      3.3     0.4    -      -       -      -
    589X  LEU*     1.3    75.9    -      -       -      +
    591X  ASN*     1.3    61.8    +      -       -      +
    593X  GLU*     3.5     1.9    +      -       -      +
    594X  SER*     3.4    19.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 591 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    587X  LYS      3.0    14.7    +      -       -      -
    588X  MET*     3.2     4.5    +      -       -      +
    589X  LEU      3.1     0.2    -      -       -      -
    590X  ALA*     1.3    75.8    -      -       -      +
    592X  PHE*     1.3    65.7    +      -       -      +
    593X  GLU      3.3     0.2    +      -       -      -
    594X  SER*     3.4     7.8    +      -       -      -
    595X  GLY      3.4    13.7    +      -       -      -
    598X  LYS*     3.8    16.6    -      -       -      +
    599X  TYR      5.6     2.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 592 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    426X  LEU      5.2     5.6    -      -       -      -
    428X  ASN*     5.0    13.6    -      -       -      +
    588X  MET      2.8    18.0    +      -       -      -
    589X  LEU*     3.1     4.4    +      -       -      +
    591X  ASN*     1.3    71.1    -      -       -      +
    593X  GLU*     1.3    63.3    +      -       -      +
    595X  GLY*     3.0    19.6    +      -       -      -
    598X  LYS*     5.8     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 593 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    589X  LEU      3.0    14.4    +      -       -      -
    590X  ALA*     3.5     3.1    +      -       -      +
    591X  ASN      3.2     0.4    -      -       -      -
    592X  PHE*     1.3    76.6    -      -       -      +
    594X  SER*     1.3    61.2    +      -       -      +
    595X  GLY*     3.4     1.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 594 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    590X  ALA      3.4    11.5    +      -       -      -
    591X  ASN*     3.4    10.4    +      -       -      -
    592X  PHE      3.3     0.6    -      -       -      -
    593X  GLU*     1.3    76.4    -      -       -      +
    595X  GLY*     1.3    51.3    +      -       -      +
    596X  LYS*     2.7    19.3    +      -       -      -
    597X  HIS*     4.0     6.4    +      -       -      -
    598X  LYS*     4.9     6.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 595 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452X  TRP*     6.2     1.6    -      -       -      -
    591X  ASN      3.4     5.6    +      -       -      -
    592X  PHE*     3.0    19.1    +      -       -      -
    593X  GLU      4.1     1.6    -      -       -      -
    594X  SER*     1.3    72.1    -      -       -      +
    596X  LYS*     1.3    64.8    +      -       -      +
    597X  HIS      3.2     1.1    +      -       -      -
    598X  LYS*     3.4    13.3    +      -       -      +
----------------------------------------------------------
 Back to top of page


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