Contacts of the helix formed by residues 3449 - 3459 (chain F) in PDB entry 6X34


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 LYS3449 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3445F  TYR*     3.4    19.2    +      -       +      +
   3446F  TRP      3.7     9.4    -      -       -      +
   3447F  SER      4.5     2.0    -      -       -      -
   3448F  LYS*     1.3    76.9    -      -       +      +
   3450F  HIS*     1.3    63.9    +      -       -      +
   3451F  ASN*     3.2     3.7    +      -       +      +
   3452F  PHE*     3.4    34.1    +      -       +      +
   3453F  LYS      3.5     8.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS3450 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3447F  SER      5.1     4.0    -      -       -      +
   3448F  LYS      3.6     5.6    +      -       -      +
   3449F  LYS*     1.3    70.9    -      -       -      +
   3451F  ASN*     1.3    63.0    +      -       -      +
   3453F  LYS*     3.9     7.1    -      -       -      +
   3454F  ARG*     3.2    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN3451 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3449F  LYS*     3.2     3.4    -      -       +      +
   3450F  HIS*     1.3    78.2    -      -       -      +
   3452F  PHE*     1.3    70.6    +      -       +      +
   3454F  ARG*     4.1     2.8    -      -       -      +
   3455F  GLU*     3.1    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE3452 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3398F  GLU*     6.3     2.9    -      -       +      -
   3399F  PHE*     6.4     2.0    -      -       +      -
   3445F  TYR*     4.5    18.2    -      -       +      +
   3446F  TRP*     5.6     3.9    -      -       +      +
   3449F  LYS*     3.4    28.5    +      -       +      +
   3451F  ASN*     1.3    83.0    -      -       +      +
   3453F  LYS*     1.3    64.8    +      -       -      +
   3455F  GLU*     4.0     4.6    -      -       +      +
   3456F  GLU*     3.1    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS3453 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3446F  TRP*     3.3    40.3    +      -       +      +
   3447F  SER*     5.5     1.1    -      -       -      -
   3449F  LYS      3.5     5.9    +      -       -      +
   3450F  HIS*     4.0     9.4    -      -       -      +
   3451F  ASN      3.3     0.4    -      -       -      -
   3452F  PHE*     1.3    77.7    -      -       -      +
   3454F  ARG*     1.3    63.9    +      -       -      +
   3456F  GLU*     3.5    12.4    +      -       -      +
   3457F  GLN*     3.6    13.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG3454 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3450F  HIS      3.2    17.3    +      -       -      +
   3451F  ASN*     4.3     3.4    -      -       -      +
   3453F  LYS*     1.3    77.2    -      -       -      +
   3455F  GLU*     1.3    62.2    +      -       -      +
   3457F  GLN*     3.7     3.2    +      -       -      +
   3458F  ASN*     3.3    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU3455 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3399F  PHE*     3.7    30.3    -      -       +      +
   3451F  ASN      3.1    20.2    +      -       -      +
   3452F  PHE*     4.3     5.2    -      -       +      +
   3454F  ARG*     1.3    75.6    -      -       -      +
   3456F  GLU*     1.3    64.7    +      -       -      +
   3458F  ASN*     3.9     7.2    -      -       -      +
   3459F  PHE*     3.6    19.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU3456 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3399F  PHE*     5.2     2.2    -      -       -      +
   3403F  CYS*     4.3    12.8    -      -       +      +
   3446F  TRP*     4.3    26.7    -      -       +      -
   3452F  PHE      3.1    19.6    +      -       -      +
   3453F  LYS*     3.8     6.1    -      -       -      +
   3454F  ARG      3.3     0.4    -      -       -      -
   3455F  GLU*     1.3    80.7    -      -       -      +
   3457F  GLN*     1.3    60.8    +      -       -      +
   3458F  ASN      3.4     0.5    +      -       -      -
   3459F  PHE*     3.6     8.0    +      -       -      +
   3460F  VAL*     3.3    15.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN3457 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3453F  LYS      3.6    10.8    +      -       -      +
   3454F  ARG*     4.5     2.9    -      -       -      +
   3455F  GLU      3.5     0.2    -      -       -      -
   3456F  GLU*     1.3    76.7    -      -       -      +
   3458F  ASN*     1.3    64.0    +      -       -      +
   3459F  PHE      3.4     0.2    -      -       -      -
   3460F  VAL*     3.6    21.8    +      -       +      +
   3461F  VAL*     4.2     5.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN3458 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3454F  ARG      3.3    18.8    +      -       -      +
   3455F  GLU*     4.0     9.0    -      -       -      +
   3456F  GLU      3.2     1.0    -      -       -      -
   3457F  GLN*     1.3    79.5    -      -       -      +
   3459F  PHE*     1.3    61.5    +      -       -      +
   3460F  VAL      3.5     0.5    +      -       -      -
   3461F  VAL*     3.8    15.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE3459 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3399F  PHE*     4.6     3.1    -      -       +      +
   3400F  SER*     3.7    43.1    -      -       -      -
   3403F  CYS*     3.6    32.1    -      -       +      -
   3404F  ARG*     4.6    11.0    -      -       +      -
   3455F  GLU      3.6     9.9    +      -       -      +
   3456F  GLU      3.6     1.8    +      -       -      +
   3457F  GLN      3.4     0.4    -      -       -      -
   3458F  ASN*     1.3    76.5    -      -       -      +
   3460F  VAL*     1.3    65.0    +      -       -      +
   3461F  VAL      3.4     7.9    -      -       -      +
----------------------------------------------------------
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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