Contacts of the helix formed by residues 449 - 459 (chain T) in PDB entry 6FF7


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 GLU 449 (chain T).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1965A  HIS*     4.3    28.1    +      -       +      +
    447T  LYS      3.7     4.8    +      -       -      +
    448T  THR*     1.3    72.2    -      -       -      +
    450T  ILE*     1.3    58.3    +      -       -      +
    451T  ASN*     4.1     3.1    -      -       -      +
    452T  LEU*     3.8    24.9    -      -       +      +
    453T  VAL*     3.9    16.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 450 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    448T  THR*     3.1    13.3    +      -       -      +
    449T  GLU*     1.3    71.9    -      -       -      +
    451T  ASN*     1.3    61.1    +      -       -      +
    452T  LEU      3.3     1.1    -      -       -      -
    453T  VAL*     4.6     3.6    -      -       -      +
    454T  SER*     2.9    32.4    -      -       -      +
    159t  TYR*     3.7    16.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 451 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    448T  THR      4.9     0.2    +      -       -      -
    449T  GLU*     3.4     2.7    -      -       +      +
    450T  ILE*     1.3    80.1    -      -       -      +
    452T  LEU*     1.3    63.4    +      -       -      +
    454T  SER*     4.3     1.3    -      -       -      -
    455T  PHE*     3.4    18.9    +      -       -      +
    149t  ASP*     5.0    18.6    -      -       +      -
    159t  TYR*     3.3    28.3    -      -       +      +
    160t  GLN*     5.7     1.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 452 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449T  GLU*     3.8    21.7    -      -       +      +
    450T  ILE*     3.3     0.6    -      -       -      +
    451T  ASN*     1.3    76.3    -      -       -      +
    453T  VAL*     1.3    59.1    +      -       -      +
    455T  PHE*     2.7    28.4    +      -       -      +
    456T  ARG*     2.9    13.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 453 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1965A  HIS*     6.3     1.6    -      -       +      -
    449T  GLU      3.9    16.4    +      -       -      +
    450T  ILE*     5.0     1.8    -      -       -      -
    452T  LEU*     1.3    79.4    -      -       -      +
    454T  SER*     1.3    57.3    +      -       -      +
    456T  ARG*     3.2     9.9    +      -       +      +
    457T  ARG*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 454 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450T  ILE*     2.9    26.7    +      -       -      +
    451T  ASN*     4.4     1.8    -      -       -      -
    452T  LEU      3.1     1.0    +      -       -      -
    453T  VAL*     1.3    78.6    -      -       -      +
    455T  PHE*     1.3    61.3    +      -       -      +
    457T  ARG*     3.8    11.6    +      -       -      +
    458T  THR*     3.9    11.1    +      -       -      -
    159t  TYR*     4.9     9.0    -      -       -      -
    160t  GLN*     5.8     7.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 455 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451T  ASN      3.4    13.1    +      -       -      +
    452T  LEU*     2.7    17.5    +      -       -      +
    454T  SER*     1.3    69.5    -      -       -      +
    456T  ARG*     1.3    62.5    +      -       -      +
    457T  ARG      2.9     6.0    +      -       -      -
    458T  THR*     3.0    14.0    +      -       -      -
    459T  ILE*     3.5    10.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 456 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452T  LEU      2.9    12.1    +      -       -      +
    453T  VAL*     3.2    12.3    +      -       +      +
    455T  PHE*     1.3    75.3    -      -       -      +
    457T  ARG*     1.3    61.3    +      -       -      +
    459T  ILE*     4.3     4.2    -      -       -      +
    460T  TYR*     3.6    18.4    +      -       -      +
    492T  MET*     5.2    17.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 457 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1476A  GLN      6.1     0.4    -      -       -      +
    453T  VAL      2.9    15.6    +      -       -      +
    454T  SER*     3.9     9.9    -      -       -      +
    455T  PHE      2.9     0.6    +      -       -      -
    456T  ARG*     1.3    79.2    -      -       -      +
    458T  THR*     1.3    59.7    +      -       -      +
    460T  TYR*     3.1    20.4    +      -       -      +
    461T  LEU*     3.3    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 458 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454T  SER      3.9     6.7    +      -       -      -
    455T  PHE*     3.0     7.8    +      -       -      -
    457T  ARG*     1.3    79.1    -      -       -      +
    459T  ILE*     1.3    57.3    +      -       -      +
    460T  TYR      3.2     1.3    -      -       -      -
    461T  LEU*     3.6     9.9    -      -       -      -
    462T  ALA*     2.9    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 459 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    455T  PHE      3.5    10.4    +      -       -      +
    456T  ARG*     4.3     4.0    -      -       -      +
    457T  ARG      3.3     0.4    -      -       -      -
    458T  THR*     1.3    75.9    -      -       -      +
    460T  TYR*     1.3    57.8    +      -       -      +
    461T  LEU      3.0     4.3    -      -       -      -
    462T  ALA*     4.4     8.1    -      -       +      +
    463T  ILE*     4.1    15.2    -      -       -      +
    476T  LEU*     6.3     3.6    -      -       +      -
    489T  LEU*     6.1     5.6    -      -       +      -
    492T  MET*     5.3    16.7    -      -       +      +
    493T  ILE*     6.1     0.5    -      -       -      -
    496T  CYS*     5.5     4.0    -      -       -      +
----------------------------------------------------------
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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