Contacts of the helix formed by residues 308 - 319 (chain 4) in PDB entry 1O1F


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 308 (chain 4).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2194  VAL*     3.0    20.4    -      -       -      +
    2214  LEU*     4.7     5.6    -      -       -      +
    3064  TYR      3.5     0.2    +      -       -      -
    3074  PRO*     1.3    72.2    -      -       -      +
    3094  ILE*     1.3    63.2    +      -       -      +
    3104  ALA*     3.3     3.5    -      -       -      +
    3114  ASP*     4.0    22.4    -      -       -      +
    3124  ARG*     3.3    21.5    +      -       -      +
    3354  ARG*     5.9     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 309 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1534  LEU*     5.7     4.7    -      -       +      -
    2194  VAL*     3.9    15.0    -      -       +      -
    2614  LEU*     4.3    13.5    -      -       +      -
    2624  PHE*     4.6     8.8    -      -       +      -
    2744  ILE*     6.2     2.7    -      -       +      -
    2994  MET*     4.3    13.5    -      -       +      -
    3034  THR      3.9     7.2    -      -       -      +
    3044  THR*     3.2    52.3    -      -       +      +
    3064  TYR*     3.2    25.8    -      -       +      +
    3074  PRO      3.2     1.4    -      -       -      -
    3084  GLY*     1.3    78.0    -      -       -      +
    3104  ALA*     1.3    72.5    +      -       +      +
    3124  ARG*     3.8     2.4    +      -       -      +
    3134  MET*     3.0    33.0    +      -       +      +
    3354  ARG*     3.5    13.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 310 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2994  MET*     4.0    22.7    -      -       +      -
    3084  GLY*     5.7     0.9    -      -       -      +
    3094  ILE*     1.3    82.0    -      -       +      +
    3114  ASP*     1.4    53.6    +      -       -      +
    3134  MET*     3.1     3.5    +      -       -      +
    3144  GLN*     2.8    38.8    +      -       +      +
    3294  ILE*     4.1    15.0    -      -       +      +
    3314  ALA*     4.1    14.1    -      -       +      -
    3354  ARG*     5.5     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 311 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2214  LEU*     3.8    31.6    -      -       +      +
    3084  GLY*     3.8    17.1    +      -       -      +
    3094  ILE      3.5     0.2    -      -       -      -
    3104  ALA*     1.4    72.9    -      -       -      +
    3124  ARG*     1.3    66.2    +      -       -      +
    3144  GLN*     3.1    11.1    -      -       -      +
    3154  LYS*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 312 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2194  VAL*     3.6    12.1    -      -       +      -
    2204  ALA      3.0    21.1    +      -       -      +
    2214  LEU*     3.8    15.2    -      -       -      +
    2224  ASP      4.9     3.1    -      -       -      +
    2234  PHE*     2.9    41.6    -      -       -      +
    2624  PHE*     3.3    26.1    -      -       +      +
    2634  GLN*     3.4    27.3    +      -       -      +
    3084  GLY      3.3    14.0    +      -       -      +
    3094  ILE      3.9     2.9    -      -       -      +
    3114  ASP*     1.3    78.0    -      -       -      +
    3134  MET*     1.3    52.2    +      -       -      +
    3154  LYS*     3.3     3.9    +      -       -      +
    3164  GLU*     2.7    76.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 313 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1534  LEU*     4.5     9.4    -      -       +      -
    2624  PHE*     4.2    10.3    -      -       +      -
    2744  ILE*     3.9    17.7    -      -       +      -
    2754  HIS*     3.4    34.3    -      -       -      -
    2784  THR*     3.0    36.1    -      -       +      +
    2974  ASN*     4.4    11.2    -      -       -      +
    2994  MET*     4.8     8.1    -      -       -      -
    3094  ILE*     3.0    24.6    +      -       +      +
    3104  ALA*     3.1     4.2    +      -       -      +
    3124  ARG*     1.3    71.8    -      -       -      +
    3144  GLN*     1.3    58.7    +      -       -      +
    3164  GLU*     3.6     1.6    -      -       -      +
    3174  ILE*     2.9    39.1    +      -       +      +
    3294  ILE*     4.1    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 314 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3104  ALA*     2.8    13.5    +      -       +      +
    3114  ASP*     3.1    17.0    -      -       -      +
    3134  MET*     1.3    75.3    -      -       -      +
    3154  LYS*     1.3    62.6    +      -       +      +
    3184  THR*     2.8    34.7    +      -       -      +
    3274  ILE*     3.5    32.4    +      -       -      +
    3284  LYS*     4.3     2.2    -      -       -      +
    3294  ILE*     3.5    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 315 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2214  LEU*     6.3     4.0    -      -       +      -
    3114  ASP      3.0    12.8    +      -       -      +
    3124  ARG*     4.0     3.8    -      -       -      +
    3144  GLN*     1.3    83.4    -      -       +      +
    3164  GLU*     1.3    67.1    +      -       -      +
    3184  THR*     3.1    33.2    +      -       +      +
    3194  ALA*     3.5    29.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 316 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2624  PHE*     4.6     3.1    -      -       +      -
    2754  HIS*     3.2    57.8    +      -       +      -
    3124  ARG*     2.7    60.1    +      -       -      +
    3134  MET*     3.2     7.8    +      -       -      +
    3154  LYS*     1.3    82.0    -      -       -      +
    3174  ILE*     1.3    61.6    +      -       -      +
    3194  ALA*     3.9     3.7    +      -       -      +
    3204  LEU*     3.8    17.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 317 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2754  HIS*     3.8    23.1    -      -       +      +
    2784  THR*     4.1    16.4    -      -       +      -
    2794  TYR*     5.1     5.6    -      -       +      +
    2944  TYR*     4.0    24.9    -      -       +      +
    2974  ASN*     3.9    13.9    -      -       -      +
    3134  MET*     2.9    27.7    +      -       +      +
    3164  GLU*     1.3    76.1    -      -       -      +
    3184  THR*     1.3    66.3    +      -       -      +
    3194  ALA      3.2     2.5    -      -       -      -
    3204  LEU*     3.0     6.1    +      -       +      +
    3214  ALA*     2.9    25.6    +      -       -      +
    3274  ILE*     3.7    26.5    -      -       +      -
    3294  ILE*     3.6    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 318 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3144  GLN*     2.8    30.8    +      -       -      +
    3154  LYS*     3.1    30.8    +      -       +      +
    3174  ILE*     1.3    73.4    -      -       -      +
    3194  ALA*     1.3    61.7    +      -       -      +
    3204  LEU      3.1     5.5    +      -       -      -
    3214  ALA*     3.1    20.8    -      -       -      +
    3234  SER*     5.8     0.7    -      -       -      -
    3254  MET      6.1     0.4    -      -       -      +
    3274  ILE*     3.7    29.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 319 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3154  LYS*     3.5    28.9    +      -       -      +
    3164  GLU*     4.0     4.3    -      -       -      +
    3174  ILE      3.2     0.8    -      -       -      -
    3184  THR*     1.3    80.1    +      -       -      +
    3204  LEU*     1.3    58.7    +      -       -      +
    3214  ALA      4.8     0.7    -      -       -      -
----------------------------------------------------------
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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