Contacts of the helix formed by residues 1705 - 1716 (chain A) in PDB entry 2FR1


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 GLY1705 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1703A  ALA      3.5     0.6    +      -       -      -
   1704A  ASP*     1.3    79.2    +      -       -      +
   1706A  ALA*     1.3    63.4    +      -       -      +
   1707A  GLY      3.1     4.6    -      -       -      +
   1708A  GLU*     3.4    20.3    +      -       -      +
   1709A  LEU*     3.0    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1706 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1674A  THR*     4.4     8.9    -      -       +      -
   1700A  GLY      4.0    16.2    -      -       -      +
   1701A  PRO*     4.2    11.9    -      -       +      +
   1703A  ALA*     3.3    24.6    +      -       +      +
   1704A  ASP      3.2     3.6    +      -       -      -
   1705A  GLY*     1.3    79.1    -      -       -      +
   1707A  GLY*     1.3    64.7    +      -       -      +
   1709A  LEU*     3.1    21.0    +      -       -      +
   1710A  VAL*     3.2    19.8    +      -       -      +
   1722A  VAL*     4.9     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1707 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1701A  PRO      5.6     0.6    +      -       -      -
   1703A  ALA      4.8     0.8    +      -       -      -
   1705A  GLY*     3.1     2.2    -      -       -      +
   1706A  ALA*     1.3    82.8    -      -       -      +
   1708A  GLU*     1.3    59.3    +      -       -      +
   1709A  LEU      3.3     0.2    +      -       -      -
   1710A  VAL*     3.6     5.1    +      -       -      +
   1711A  ALA*     3.6    16.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1708 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1705A  GLY*     3.5    18.2    -      -       -      +
   1707A  GLY*     1.3    72.5    -      -       -      +
   1709A  LEU*     1.3    62.6    +      -       -      +
   1711A  ALA*     3.8    10.5    -      -       +      +
   1712A  GLU*     2.9    43.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1709 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1673A  GLY      3.7    23.6    -      -       -      +
   1674A  THR*     4.0    22.4    -      -       +      +
   1675A  GLY      5.7     0.2    -      -       -      +
   1679A  GLY*     4.9     8.3    -      -       -      +
   1682A  ALA*     5.1     0.2    -      -       +      -
   1683A  ARG*     4.7    23.3    -      -       -      +
   1695A  LEU*     4.2    11.0    -      -       +      -
   1705A  GLY      3.0    14.5    +      -       -      +
   1706A  ALA*     3.2    14.6    -      -       -      +
   1707A  GLY      3.1     0.4    -      -       -      -
   1708A  GLU*     1.3    76.4    -      -       -      +
   1710A  VAL*     1.3    62.3    +      -       +      +
   1712A  GLU*     3.1     8.1    +      -       +      +
   1713A  LEU*     2.9    51.8    +      -       +      +
   1722A  VAL*     5.9     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1710 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1695A  LEU*     5.7     0.2    -      -       +      -
   1706A  ALA      3.2    14.1    +      -       -      +
   1707A  GLY*     4.0     6.1    -      -       -      +
   1709A  LEU*     1.3    75.4    -      -       -      +
   1711A  ALA*     1.3    54.3    +      -       -      +
   1713A  LEU*     3.0     6.2    +      -       -      +
   1714A  GLU*     2.7    66.4    +      -       +      +
   1720A  THR*     4.1    23.6    -      -       +      +
   1722A  VAL*     3.6    28.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA1711 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1707A  GLY      3.6    10.5    +      -       -      +
   1708A  GLU*     3.8    11.9    -      -       +      +
   1709A  LEU      3.3     0.4    -      -       -      -
   1710A  VAL*     1.3    80.1    -      -       -      +
   1712A  GLU*     1.3    58.3    +      -       -      +
   1714A  GLU*     4.0     8.5    -      -       -      +
   1715A  ALA*     3.1    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1712 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1683A  ARG*     2.8    47.6    +      -       +      +
   1708A  GLU*     2.9    31.9    +      -       -      +
   1709A  LEU*     3.5     7.8    -      -       +      +
   1710A  VAL      3.1     0.2    -      -       -      -
   1711A  ALA*     1.3    77.2    -      -       -      +
   1713A  LEU*     1.3    64.1    +      -       +      +
   1715A  ALA*     3.4     8.3    +      -       +      +
   1716A  LEU*     3.4    28.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1713 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1682A  ALA*     3.6    39.3    -      -       +      +
   1683A  ARG*     3.6    20.4    -      -       +      +
   1686A  ALA*     4.1     6.7    -      -       +      +
   1693A  LEU*     4.1     7.9    -      -       +      -
   1695A  LEU*     3.7    11.0    -      -       +      -
   1709A  LEU*     2.9    36.1    +      -       +      +
   1710A  VAL      3.6     1.3    -      -       -      +
   1712A  GLU*     1.3    74.5    -      -       +      +
   1714A  GLU*     1.3    63.2    +      -       -      +
   1715A  ALA      3.1     2.0    -      -       -      -
   1716A  LEU*     3.1    19.2    +      -       +      +
   1718A  ALA*     3.3    18.4    +      -       -      +
   1720A  THR*     3.2    38.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1714 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1710A  VAL*     2.7    46.6    +      -       +      +
   1711A  ALA*     4.2     6.2    -      -       -      +
   1713A  LEU*     1.3    70.9    -      -       -      +
   1715A  ALA*     1.3    65.0    +      -       -      +
   1717A  GLY*     3.1    14.0    +      -       -      -
   1718A  ALA      3.4    17.9    +      -       -      +
   1719A  ARG*     4.3     9.9    -      -       -      +
   1720A  THR*     3.9    17.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1715 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1711A  ALA      3.1    21.5    +      -       -      +
   1712A  GLU*     3.5    10.3    -      -       +      +
   1713A  LEU      3.1     0.4    -      -       -      -
   1714A  GLU*     1.3    76.4    -      -       -      +
   1716A  LEU*     1.3    62.3    -      -       +      +
   1717A  GLY*     3.1     1.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1716 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1683A  ARG*     3.8    25.8    -      -       +      +
   1686A  ALA*     3.6    37.7    -      -       +      +
   1687A  ARG*     4.1    21.9    -      -       +      +
   1712A  GLU*     3.5    19.3    -      -       +      +
   1713A  LEU*     3.1    13.5    +      -       +      +
   1715A  ALA*     1.3    79.0    -      -       +      +
   1717A  GLY*     1.3    59.2    +      -       -      +
----------------------------------------------------------
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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