Contacts of the helix formed by residues 145 - 154 (chain C) in PDB entry 2JIF


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 LEU 145 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141C  ILE*     3.0    28.6    +      -       +      +
    144C  THR*     1.3    91.0    +      -       -      +
    146C  ILE*     1.3    66.4    +      -       -      +
    149C  LEU*     3.2    32.4    +      -       -      +
    174C  PHE*     3.9    43.1    -      -       +      -
    289C  SER*     3.5    39.5    -      -       -      +
    290C  LEU*     4.2    10.3    -      -       +      +
    293C  GLY*     4.3     0.4    -      -       -      -
    414C  GLU*     4.0    22.4    -      -       -      +
   1433C  FAD      5.8     1.8    -      -       +      +
   1434C  COS      5.2     4.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 146 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141C  ILE*     3.0    16.9    +      -       +      +
    142C  GLN*     3.5    11.7    -      -       -      +
    145C  LEU*     1.3    75.5    -      -       -      +
    147C  ASN*     1.3    65.9    +      -       -      +
    149C  LEU*     3.3     2.1    +      -       -      +
    150C  ILE*     3.2    29.7    +      -       +      +
    166C  LEU*     3.9    35.0    -      -       +      -
    172C  GLY*     3.8    21.3    -      -       -      +
    173C  SER      3.5    35.7    -      -       -      +
    174C  PHE*     3.7    12.1    -      -       +      +
    216C  LEU*     4.6     5.4    -      -       +      -
    218C  LEU*     4.1    18.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 147 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103C  MET      2.7    28.9    +      -       -      +
    104C  GLY*     3.6     4.0    -      -       -      -
    107C  VAL*     3.5    31.5    -      -       +      +
    142C  GLN*     2.8    27.5    +      -       -      +
    143C  ASN*     3.5    13.5    +      -       -      +
    146C  ILE*     1.3    73.6    -      -       -      +
    148C  THR*     1.3    57.5    +      -       -      +
    150C  ILE*     3.3     2.5    +      -       -      +
    151C  ARG*     2.8    36.7    +      -       -      +
    163C  LEU*     4.3     7.2    -      -       -      +
    166C  LEU*     3.6    29.7    +      -       -      +
    167C  THR*     5.0     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 148 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106C  GLU*     4.8     6.1    +      -       -      -
    143C  ASN      3.0    16.0    +      -       -      -
    144C  THR      3.5    16.0    +      -       -      +
    145C  LEU      3.7     0.2    +      -       -      -
    146C  ILE      3.3     0.8    -      -       -      -
    147C  ASN*     1.3    77.8    -      -       -      +
    149C  LEU*     1.3    58.4    +      -       +      +
    151C  ARG*     3.4    12.7    +      -       -      +
    152C  LYS*     2.9    57.7    +      -       +      +
    289C  SER*     5.6     7.2    -      -       -      -
    292C  GLU*     3.3    32.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 149 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145C  LEU      3.2    21.3    +      -       -      +
    146C  ILE      3.7     3.1    -      -       -      +
    148C  THR*     1.3    76.4    -      -       +      +
    150C  ILE*     1.3    59.9    +      -       -      +
    153C  HIS*     2.9    48.8    +      -       +      +
    154C  GLY      3.9     0.3    +      -       -      -
    174C  PHE*     3.9    13.5    -      -       +      -
    218C  LEU*     3.4    40.2    -      -       +      -
    220C  MET*     5.8     0.4    -      -       -      -
    234C  SER*     5.6     0.2    -      -       -      +
    276C  LEU*     4.0     9.5    -      -       +      +
    285C  TYR*     3.5    41.7    -      -       +      +
    286C  ALA      5.4     0.2    -      -       -      +
    289C  SER*     3.9    22.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 150 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146C  ILE*     3.2    18.4    +      -       +      +
    147C  ASN      3.9     2.9    -      -       -      +
    149C  LEU*     1.3    76.3    -      -       -      +
    151C  ARG*     1.3    59.8    +      -       -      +
    154C  GLY*     2.9    30.1    +      -       -      +
    158C  GLN*     4.5     9.9    -      -       +      +
    159C  LYS*     3.5    20.2    -      -       +      +
    162C  TYR*     4.3     7.2    -      -       +      -
    163C  LEU*     3.9    23.8    -      -       +      -
    166C  LEU*     3.4    30.3    -      -       +      -
    216C  LEU*     3.9    18.2    -      -       +      -
    218C  LEU*     4.8     3.1    -      -       +      -
    236C  LEU*     4.3    20.4    -      -       +      -
    276C  LEU*     4.4     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 151 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106C  GLU*     3.4    38.9    +      -       -      +
    107C  VAL*     4.1    17.9    -      -       -      +
    108C  ASP*     5.3     0.4    -      -       -      +
    147C  ASN*     2.8    32.8    +      -       -      +
    148C  THR*     3.7    11.0    +      -       -      +
    150C  ILE*     1.3    72.8    -      -       -      +
    152C  LYS*     1.3    92.6    +      -       +      +
    159C  LYS*     3.2    32.2    +      -       -      -
    163C  LEU*     4.2    11.7    -      -       +      -
   1436C   CL      3.2    31.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 152 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148C  THR*     2.9    35.7    +      -       +      +
    151C  ARG*     1.3   114.4    -      -       -      +
    153C  HIS*     1.3    86.7    +      -       +      +
    154C  GLY      3.8     0.6    -      -       -      +
    159C  LYS*     5.5     0.4    +      -       -      -
    292C  GLU*     5.9     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 153 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149C  LEU*     2.9    29.1    +      -       +      +
    152C  LYS*     1.3    95.5    +      -       +      +
    154C  GLY*     1.3    66.7    +      -       -      +
    155C  THR*     3.8     2.6    +      -       -      +
    158C  GLN*     4.5     0.5    -      -       -      +
    276C  LEU*     3.9    14.8    -      -       +      -
    277C  GLY*     3.7    27.2    +      -       -      -
    285C  TYR*     3.2    51.0    +      +       +      +
----------------------------------------------------------
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Residues in contact with GLY 154 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150C  ILE*     2.9    21.5    +      -       -      -
    152C  LYS      3.8     0.9    -      -       -      +
    153C  HIS*     1.3    80.0    +      -       -      +
    155C  THR*     1.3    67.7    +      -       -      -
    158C  GLN*     3.5    14.4    -      -       -      -
    159C  LYS*     3.5    18.3    +      -       -      -
    276C  LEU*     3.7    10.2    -      -       -      +
----------------------------------------------------------
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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