Contacts of the helix formed by residues 291 - 304 (chain J) in PDB entry 1F1H


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 291 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    281J  LEU      2.6    28.9    +      -       -      -
    282J  PHE*     2.9    10.1    +      -       -      -
    283J  SER      3.4    17.7    -      -       -      -
    284J  GLY*     3.5     9.2    -      -       -      +
    286J  LYS*     4.0     2.9    -      -       -      -
    290J  LEU*     1.3    75.9    -      -       -      +
    292J  GLU*     1.3    62.5    +      -       -      +
    293J  GLN*     3.2     6.4    +      -       -      -
    294J  ALA*     3.1    22.2    +      -       -      +
    295J  LEU*     3.5    13.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 292 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286J  LYS*     3.8    36.7    +      -       +      +
    291J  SER*     1.3    74.0    -      -       -      +
    293J  GLN*     1.3    66.3    +      -       +      +
    295J  LEU*     3.2    12.1    +      -       +      +
    296J  TYR*     3.1    57.3    +      -       +      +
    385J  LYS*     5.0     5.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 293 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120J  ILE*     3.7    20.8    +      -       -      +
    274J  LEU*     5.1     2.3    -      -       -      +
    281J  LEU*     3.0    44.9    -      -       -      +
    282J  PHE*     4.8     5.2    -      -       +      -
    291J  SER*     3.1    11.8    -      -       -      +
    292J  GLU*     1.3    85.4    -      -       +      +
    294J  ALA*     1.3    60.9    +      -       -      +
    296J  TYR*     3.4     5.5    +      -       -      -
    297J  TYR*     3.1    19.2    +      -       -      +
    382J  ILE*     3.5    31.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 294 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282J  PHE*     3.7    37.4    -      -       +      +
    290J  LEU*     3.7    22.4    -      -       +      -
    291J  SER*     3.1    18.6    +      -       -      +
    292J  GLU      3.2     0.2    -      -       -      -
    293J  GLN*     1.3    77.0    -      -       -      +
    295J  LEU*     1.3    57.8    +      -       -      +
    297J  TYR*     3.1    10.5    -      -       -      +
    298J  ILE*     2.9    32.0    +      -       -      +
    356J  ILE*     5.0     2.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 295 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286J  LYS*     4.0    29.6    -      -       +      -
    287J  TYR*     4.9     7.0    -      -       +      +
    290J  LEU*     3.8    26.5    -      -       +      -
    291J  SER      3.6     9.4    -      -       -      +
    292J  GLU*     3.2    11.1    +      -       +      +
    294J  ALA*     1.3    77.8    -      -       -      +
    296J  TYR*     1.3    61.4    +      -       +      +
    298J  ILE*     3.2     6.7    +      -       +      +
    299J  GLY      2.8    23.4    +      -       -      -
    334J  TYR*     4.0    29.4    -      -       +      +
    387J  HIS*     4.6    15.5    -      -       +      +
    388J  PRO*     3.2    25.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 296 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    292J  GLU*     3.1    43.9    +      -       +      +
    293J  GLN*     3.8     8.3    -      -       -      +
    294J  ALA      3.3     0.2    -      -       -      -
    295J  LEU*     1.3    76.1    -      -       +      +
    297J  TYR*     1.3    66.6    +      -       -      +
    299J  GLY*     3.3     0.9    +      -       -      -
    300J  GLY      3.0    18.4    +      -       -      -
    381J  GLY*     3.1    29.2    -      -       -      +
    382J  ILE*     3.7    12.1    -      -       +      -
    385J  LYS*     3.5    61.2    +      -       +      +
    386J  ILE      3.4    19.2    -      -       -      +
    387J  HIS*     4.1    22.9    -      +       +      -
----------------------------------------------------------
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Residues in contact with TYR 297 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124J  VAL*     4.7     5.4    -      -       +      +
    126J  PHE*     4.8     0.5    -      -       -      -
    272J  MET*     3.6    30.9    -      -       +      +
    273J  SER      6.4     0.4    -      -       -      -
    274J  LEU*     3.8    26.5    -      -       +      -
    282J  PHE*     3.6    24.5    -      +       +      -
    293J  GLN      3.1    13.1    +      -       -      +
    294J  ALA      3.1    11.6    +      -       -      +
    296J  TYR*     1.3    76.9    -      -       -      +
    298J  ILE*     1.3    62.2    +      -       -      +
    300J  GLY      3.1    10.6    +      -       -      -
    301J  VAL*     3.1    23.1    +      -       +      +
    356J  ILE*     3.8    21.5    -      -       +      -
    374J  LEU      4.2     1.6    -      -       -      -
    375J  LEU*     3.3    35.6    -      -       +      +
    378J  GLY*     3.5    41.1    -      -       -      -
    379J  LEU*     4.8     0.2    -      -       +      -
    382J  ILE*     4.0     4.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 298 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290J  LEU*     4.4     8.7    -      -       +      -
    294J  ALA      2.9    19.0    +      -       -      +
    295J  LEU*     3.3    12.6    -      -       +      +
    297J  TYR*     1.3    74.7    -      -       -      +
    299J  GLY*     1.3    67.1    +      -       -      +
    301J  VAL*     3.0     9.3    +      -       -      +
    302J  ILE*     2.9    38.1    +      -       +      +
    334J  TYR*     4.1    23.8    -      -       +      -
    343J  ILE*     4.0    15.9    -      -       +      -
    345J  ILE*     4.0    26.5    -      -       +      -
    356J  ILE*     4.0    22.2    -      -       +      -
    388J  PRO*     3.8    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 299 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    295J  LEU      2.8    12.2    +      -       -      -
    296J  TYR      3.3     0.6    +      -       -      -
    298J  ILE*     1.3    75.5    -      -       -      +
    300J  GLY*     1.3    57.1    +      -       -      +
    302J  ILE*     3.3     5.1    +      -       -      +
    303J  LYS*     2.9    30.1    +      -       -      +
    386J  ILE*     3.6    31.5    -      -       -      +
    388J  PRO*     3.9    16.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 300 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296J  TYR      3.0    10.5    +      -       -      -
    297J  TYR      3.1     2.6    +      -       -      -
    299J  GLY*     1.3    75.7    -      -       -      +
    301J  VAL*     1.3    55.0    +      -       -      +
    303J  LYS*     3.2     1.7    +      -       -      -
    304J  HIS*     3.0    37.0    +      -       -      +
    377J  ALA      3.2    25.1    -      -       -      -
    381J  GLY*     3.7    13.1    -      -       -      -
    386J  ILE*     4.4     7.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 301 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297J  TYR*     3.1    35.8    +      -       +      +
    298J  ILE*     3.0     9.7    +      -       -      +
    300J  GLY*     1.3    74.6    -      -       -      +
    302J  ILE*     1.3    57.3    +      -       -      +
    304J  HIS      3.6     0.5    -      -       -      -
    305J  ALA*     2.8    29.8    +      -       -      +
    308J  ILE*     4.1    17.5    -      -       +      -
    343J  ILE*     4.3    17.9    -      -       +      -
    356J  ILE*     5.2     1.1    -      -       +      -
    358J  VAL*     4.4    18.6    -      -       +      -
    360J  PHE*     4.5     8.1    -      -       +      -
    374J  LEU*     4.2    27.6    -      -       +      +
    377J  ALA*     4.2     0.9    -      -       +      -
    378J  GLY      4.5     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 302 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298J  ILE*     2.9    38.5    +      -       +      +
    299J  GLY*     3.7     4.9    -      -       -      +
    301J  VAL*     1.3    77.8    -      -       -      +
    303J  LYS*     1.3    63.6    +      -       -      +
    304J  HIS      3.5     0.3    +      -       -      -
    305J  ALA*     3.6    15.0    +      -       -      +
    332J  LEU*     3.6    55.1    -      -       +      +
    333J  ALA*     4.1    11.9    -      -       -      +
    334J  TYR*     4.7     0.9    -      -       +      -
    343J  ILE*     4.2    10.1    -      -       +      -
    388J  PRO*     4.6    17.3    -      -       +      +
    408J  PRO*     4.9     6.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 303 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299J  GLY      2.9    17.0    +      -       -      +
    300J  GLY*     3.2     6.0    +      -       -      +
    302J  ILE*     1.3    79.3    -      -       -      +
    304J  HIS*     1.3    79.6    +      -       +      +
    305J  ALA      3.7     0.5    +      -       -      -
    306J  LYS      5.2     0.5    +      -       -      -
    380J  ASP*     4.4     6.7    +      -       -      -
    384J  ASN*     5.6     4.0    +      -       -      +
    386J  ILE*     3.6    32.8    -      -       +      +
    424J  ASP*     4.1     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 304 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300J  GLY*     3.0    23.8    +      -       -      +
    301J  VAL      3.6     2.0    -      -       -      -
    303J  LYS*     1.3   102.5    -      -       +      +
    305J  ALA*     1.3    64.6    +      -       -      +
    306J  LYS      3.4     2.7    -      -       -      -
    307J  ALA*     3.1     5.7    +      -       -      +
    308J  ILE*     2.9    21.7    +      -       -      +
    377J  ALA*     4.0    13.5    -      -       +      -
    380J  ASP*     2.9    29.2    +      -       -      -
    386J  ILE*     5.1     0.2    -      -       -      +
    424J  ASP*     2.7    39.5    +      -       -      +
    427J  PHE*     3.6    42.4    -      +       +      +
----------------------------------------------------------
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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