Contacts of the helix formed by residues 196 - 210 (chain A) in PDB entry 2FE2


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 LYS 196 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  LEU*     4.0    24.5    -      -       -      +
    110A  ASN      3.9    21.1    -      -       -      +
    111A  LYS*     5.2     3.1    -      -       -      +
    112A  LYS      5.9     0.2    -      -       -      +
    113A  ALA*     4.2     7.0    -      -       +      -
    142A  LYS*     2.8    11.5    +      -       -      -
    192A  PRO      4.1    13.0    -      -       -      +
    193A  LYS*     3.8    26.1    -      -       -      +
    194A  ALA      2.7    11.0    +      -       -      +
    195A  VAL*     1.4    77.9    -      -       -      +
    197A  PRO*     1.3    73.9    -      -       +      +
    198A  LYS*     3.6    23.1    -      -       +      +
    199A  ALA      4.2     9.2    -      -       -      +
    200A  ALA      3.0    13.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ASN*     3.3    25.4    -      -       +      +
    111A  LYS      3.9    20.2    -      -       -      +
    112A  LYS      4.2     7.6    -      -       -      +
    113A  ALA*     4.2     6.5    -      -       -      +
    114A  ALA      5.5     0.2    -      -       -      +
    115A  SER*     5.4     2.5    -      -       -      +
    142A  LYS*     3.2    41.4    -      -       +      +
    145A  ALA*     4.1     6.7    -      -       +      -
    146A  GLY*     6.1     0.4    -      -       -      -
    195A  VAL      3.6     7.0    -      -       -      +
    196A  LYS*     1.3    88.6    -      -       +      +
    198A  LYS*     1.3    51.7    +      -       -      +
    200A  ALA*     3.3     2.1    +      -       -      +
    201A  LYS*     2.7    36.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  LEU*     2.9    36.8    -      -       +      -
    110A  ASN*     3.7    27.1    -      -       +      +
    146A  GLY*     6.0     3.6    -      -       -      -
    150A  ALA*     4.2    21.1    -      -       +      +
    151A  VAL*     5.0     2.7    -      -       -      -
    153A  LYS*     3.4    19.2    -      -       +      +
    154A  THR*     3.0    33.7    +      -       +      +
    175A  LYS*     5.9     0.4    -      -       -      +
    193A  LYS*     4.8     4.2    +      -       -      +
    196A  LYS*     3.6    27.2    -      -       +      +
    197A  PRO*     1.3    75.0    -      -       -      +
    199A  ALA*     1.3    69.5    +      -       -      +
    201A  LYS*     4.7     1.6    -      -       -      -
    202A  PRO*     2.8    31.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  LYS*     5.1     3.2    +      -       -      +
    154A  THR*     4.5     1.1    -      -       -      -
    174A  LYS*     6.2     1.1    -      -       -      -
    175A  LYS*     2.8    44.6    -      -       +      +
    177A  LYS*     6.3     0.4    -      -       -      +
    193A  LYS      3.8    22.4    -      -       -      +
    194A  ALA*     3.8    16.2    -      -       +      -
    196A  LYS*     3.2     6.4    +      -       +      +
    198A  LYS*     1.3    91.0    -      -       -      +
    200A  ALA*     1.3    61.6    +      -       -      +
    203A  LYS*     3.1     8.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  ALA*     5.2     6.3    -      -       +      -
    119A  LYS*     5.1     9.2    -      -       +      +
    142A  LYS*     2.9    52.7    -      -       +      +
    195A  VAL      5.2     1.9    -      -       -      +
    196A  LYS      3.0     5.2    +      -       -      +
    199A  ALA*     1.3    74.9    -      -       -      +
    201A  LYS*     1.4    60.9    +      -       -      +
    203A  LYS*     3.1    14.5    +      -       -      +
    204A  ALA*     2.8    26.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  LYS      6.1     0.2    -      -       -      -
    142A  LYS*     4.7     2.9    -      -       -      +
    143A  LYS*     3.0    79.9    +      -       +      +
    146A  GLY*     4.0    10.8    +      -       -      +
    147A  ALA      4.9     3.8    +      -       -      -
    148A  LYS*     5.3     2.6    -      -       -      +
    151A  VAL*     3.2    29.4    -      -       +      +
    197A  PRO      2.7    21.4    +      -       -      +
    198A  LYS*     4.7     0.2    -      -       -      -
    199A  ALA      3.3     0.2    -      -       -      -
    200A  ALA*     1.4    72.0    -      -       -      +
    202A  PRO*     1.3    67.9    -      -       +      +
    204A  ALA*     2.8    11.8    +      -       +      +
    205A  ALA*     2.8    29.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  VAL*     3.0    35.2    -      -       +      +
    154A  THR*     2.9    21.3    -      -       -      +
    155A  PRO*     3.1    28.5    -      -       +      -
    175A  LYS*     3.5    11.2    -      -       +      -
    198A  LYS      2.8    16.5    -      -       -      +
    201A  LYS*     1.3    92.5    -      -       +      +
    203A  LYS*     1.3    55.4    +      -       -      +
    205A  ALA*     4.1     7.0    -      -       +      -
    206A  LYS*     2.9    35.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  ALA*     5.1     6.1    +      -       -      +
    119A  LYS*     3.3    39.4    -      -       -      +
    121A  LYS*     3.7    30.7    -      -       -      +
    122A  ALA*     4.3     7.0    -      -       -      -
    139A  LYS*     6.0     1.6    -      -       -      +
    175A  LYS*     3.6    14.0    -      -       -      +
    178A  ALA*     2.9    30.7    -      -       +      +
    179A  ALA*     3.4    11.4    -      -       -      +
    181A  LYS*     5.6     0.2    -      -       -      -
    199A  ALA      3.1    13.1    +      -       -      +
    200A  ALA*     3.1    13.1    +      -       -      +
    202A  PRO*     1.3    72.5    -      -       -      +
    204A  ALA*     1.3    67.3    +      -       -      +
    207A  PRO*     2.7    40.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121A  LYS*     4.4     7.2    +      -       -      +
    139A  LYS*     4.0    32.2    +      -       +      +
    143A  LYS*     6.0     4.7    -      -       +      -
    200A  ALA      2.8    10.5    +      -       -      +
    201A  LYS*     2.8    15.9    +      -       +      +
    203A  LYS*     1.3    86.7    -      -       -      +
    205A  ALA*     1.3    56.9    +      -       -      +
    207A  PRO*     3.7     1.9    -      -       -      +
    208A  LYS*     2.8    32.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  LYS*     6.2     0.2    -      -       -      +
    143A  LYS*     6.5     0.7    -      -       -      -
    151A  VAL*     6.0     3.8    -      -       +      -
    201A  LYS*     2.8    18.4    +      -       +      +
    202A  PRO*     3.8    10.5    -      -       +      +
    204A  ALA*     1.3    78.0    -      -       -      +
    206A  LYS*     1.3    59.5    +      -       +      +
    208A  LYS*     3.0     9.1    +      -       -      +
    209A  ALA*     2.8    32.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  LEU*     4.0     6.5    -      -       +      +
     87A  LYS*     5.4     6.6    -      -       +      +
     88A  SER*     2.8    29.8    +      -       -      +
    155A  PRO*     4.3    19.4    -      -       +      +
    158A  ALA*     3.6    15.8    -      -       -      +
    175A  LYS*     3.4    21.9    -      -       +      +
    176A  ALA*     2.9    38.7    -      -       -      +
    179A  ALA*     3.9     0.9    -      -       +      -
    202A  PRO      2.9    18.2    +      -       -      +
    205A  ALA*     1.3    76.8    -      -       +      +
    207A  PRO*     1.3    70.4    -      -       +      +
    209A  ALA*     3.7     5.2    -      -       -      +
    210A  ALA*     2.8    27.5    +      -       -      +
    213A  LYS*     3.2    14.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121A  LYS*     4.5    12.8    -      -       -      +
    179A  ALA*     3.0    35.9    -      -       +      +
    181A  LYS*     5.0     3.4    -      -       +      +
    203A  LYS*     2.7    32.5    -      -       +      +
    204A  ALA      3.8     1.8    -      -       -      +
    205A  ALA      3.3     0.2    -      -       -      -
    206A  LYS*     1.3    82.2    -      -       +      +
    208A  LYS*     1.3    67.6    +      -       -      +
    209A  ALA      3.2     0.2    +      -       -      -
    210A  ALA      3.3     4.9    +      -       -      +
    213A  LYS*     2.7    58.4    -      -       +      +
    214A  ALA      5.4     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  PRO*     4.7     8.6    -      -       -      +
      7A  GLU*     2.5    35.0    -      -       -      +
     66A  LYS*     3.0    73.3    -      -       +      +
     67A  ALA*     4.0    20.6    -      -       -      +
    139A  LYS*     6.1     4.5    -      -       -      +
    143A  LYS*     4.2    18.9    -      -       -      +
    204A  ALA*     2.8    21.1    +      -       +      +
    205A  ALA*     3.0    10.5    +      -       -      +
    207A  PRO*     1.3    75.8    -      -       -      +
    209A  ALA*     1.3    51.0    +      -       -      +
    213A  LYS      5.0     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  GLU*     2.5    22.6    -      -       -      +
     10A  THR*     4.3     7.5    +      -       +      -
     60A  SER*     4.1    13.0    +      -       -      -
     62A  ALA*     3.7     4.9    +      -       -      +
     66A  LYS*     5.2     3.1    -      -       -      +
     87A  LYS*     2.9    46.9    +      -       +      +
    205A  ALA      2.8    17.5    +      -       -      +
    206A  LYS*     3.7     3.6    -      -       -      +
    208A  LYS*     1.3    72.7    -      -       -      +
    210A  ALA*     1.4    59.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  GLU*     3.0    19.8    -      -       -      +
     59A  LEU      5.7     0.4    -      -       -      -
     60A  SER*     6.0     1.1    -      -       -      +
     62A  ALA*     3.3     1.8    -      -       -      -
     79A  ASN*     3.2     8.5    -      -       -      +
     83A  LYS*     3.5    20.4    -      -       +      -
     84A  LEU*     3.7    11.7    -      -       -      +
     87A  LYS*     5.5     3.6    -      -       +      -
    206A  LYS      2.8    14.8    +      -       -      +
    207A  PRO      3.3     3.3    +      -       -      +
    209A  ALA*     1.4    75.4    -      -       +      +
    211A  LYS*     1.4    67.4    +      -       -      +
    213A  LYS*     2.9    29.5    +      -       +      -
----------------------------------------------------------
 Back to top of page


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