Contacts of the helix formed by residues 1639 - 1652 (chain P) in PDB entry 5IJO


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 LEU1639 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1634P  SER*     5.3     1.3    -      -       -      -
   1635P  MET*     2.7    40.7    +      -       +      +
   1637P  GLN*     3.0     6.0    -      -       -      +
   1638P  HIS*     1.3    87.2    -      -       -      +
   1640P  GLN*     1.3    62.1    +      -       -      +
   1641P  ALA*     3.1     6.5    -      -       +      +
   1642P  ALA*     3.1    18.9    +      -       -      +
   1643P  GLY      3.7     2.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1640 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1638P  HIS      3.7     0.4    +      -       -      -
   1639P  LEU*     1.3    71.0    -      -       -      +
   1641P  ALA*     1.3    65.5    +      -       -      +
   1642P  ALA      3.2     0.2    -      -       -      -
   1643P  GLY*     3.2     4.6    +      -       -      +
   1644P  GLN*     3.1    21.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1641 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1630P  ILE      4.8     1.6    -      -       -      +
   1631P  LEU*     3.9    22.6    -      -       -      +
   1634P  SER*     3.8    28.9    -      -       -      -
   1635P  MET      4.6     5.2    -      -       -      +
   1636P  ALA*     5.2     0.2    -      -       -      -
   1639P  LEU*     3.1     2.0    -      -       +      +
   1640P  GLN*     1.3    80.8    -      -       -      +
   1642P  ALA*     1.3    62.0    +      -       -      +
   1644P  GLN*     3.2     8.0    +      -       -      +
   1645P  VAL*     3.0    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1642 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1631P  LEU*     6.1     0.7    -      -       -      -
   1635P  MET      4.8     1.4    +      -       -      -
   1636P  ALA*     4.5     6.0    -      -       -      +
   1637P  GLN*     2.7    41.5    -      -       -      +
   1639P  LEU      3.1     4.4    +      -       -      +
   1641P  ALA*     1.3    77.5    -      -       -      +
   1643P  GLY*     1.3    62.5    +      -       -      +
   1645P  VAL*     3.3     6.4    +      -       -      +
   1646P  LEU*     3.0    22.7    +      -       -      +
   1684P  ALA*     4.3     9.1    -      -       -      +
   1685P  LEU*     4.5    17.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY1643 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1639P  LEU      3.7     4.0    +      -       -      -
   1640P  GLN*     3.2     8.0    +      -       -      -
   1642P  ALA*     1.3    79.4    -      -       -      +
   1644P  GLN*     1.3    60.5    +      -       -      +
   1646P  LEU*     3.3     7.3    +      -       -      +
   1647P  GLN*     3.1    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN1644 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1640P  GLN      3.1    12.8    +      -       -      +
   1641P  ALA*     3.2    10.3    +      -       -      +
   1643P  GLY*     1.3    77.1    -      -       -      +
   1645P  VAL*     1.3    62.2    +      -       -      +
   1647P  GLN*     3.2     9.4    +      -       -      +
   1648P  PHE*     3.1    19.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1645 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1627P  CYS      5.8     0.7    -      -       -      +
   1631P  LEU*     4.2    22.7    -      -       +      -
   1641P  ALA      3.0    12.6    +      -       -      +
   1642P  ALA*     3.8     6.7    -      -       -      +
   1644P  GLN*     1.3    74.5    -      -       -      +
   1646P  LEU*     1.3    65.7    +      -       -      +
   1648P  PHE*     2.9    20.5    +      -       +      +
   1649P  LEU*     3.0    13.0    +      -       -      +
   1680P  ILE*     5.3     7.9    -      -       +      +
   1684P  ALA*     4.5    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1646 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1642P  ALA      3.0    13.7    +      -       -      +
   1643P  GLY*     3.7     9.4    -      -       -      +
   1644P  GLN      3.3     0.2    -      -       -      -
   1645P  VAL*     1.3    76.9    -      -       -      +
   1647P  GLN*     1.3    65.1    +      -       -      +
   1649P  LEU*     3.1     8.0    +      -       -      +
   1650P  ILE*     2.9    24.9    +      -       -      +
   1684P  ALA*     4.7    10.9    -      -       +      +
   1685P  LEU*     5.4     6.1    -      -       +      +
   1687P  GLY*     6.2     4.0    -      -       -      -
   1690P  SER*     5.6    10.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1647 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1643P  GLY      3.1    12.8    +      -       -      +
   1644P  GLN*     3.5    10.8    -      -       -      +
   1645P  VAL      3.2     0.2    -      -       -      -
   1646P  LEU*     1.3    76.0    -      -       -      +
   1648P  PHE*     1.3    64.1    +      -       -      +
   1650P  ILE*     4.2     4.4    -      -       -      +
   1651P  SER*     2.9    29.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE1648 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1579P  ILE*     6.2     4.3    -      -       +      -
   1627P  CYS*     5.9     6.5    -      -       +      -
   1644P  GLN      3.1    11.5    +      -       -      +
   1645P  VAL*     2.9    18.3    +      -       +      +
   1647P  GLN*     1.3    77.7    -      -       -      +
   1649P  LEU*     1.3    60.2    +      -       -      +
   1651P  SER*     4.0     2.8    -      -       -      -
   1652P  HIS*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1649 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1645P  VAL      3.0    11.8    +      -       -      +
   1646P  LEU*     3.7     9.4    -      -       -      +
   1648P  PHE*     1.3    73.9    -      -       -      +
   1650P  ILE*     1.3    61.3    +      -       -      +
   1652P  HIS*     3.1     4.9    -      -       -      +
   1653P  SER*     2.8    30.2    +      -       -      -
   1656P  ILE*     5.8     1.4    -      -       -      +
   1680P  ILE*     6.1     5.4    -      -       +      -
   1681P  SER*     6.3     3.6    -      -       -      -
   1687P  GLY*     5.9     7.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1650 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1646P  LEU      2.9    15.6    +      -       -      +
   1647P  GLN*     4.2     4.0    -      -       -      +
   1649P  LEU*     1.3    76.4    -      -       -      +
   1651P  SER*     1.3    64.5    +      -       -      +
   1653P  SER*     3.0    22.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER1651 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1589P  ASP*     5.8     3.3    -      -       -      +
   1647P  GLN*     2.9    18.4    +      -       -      -
   1648P  PHE*     4.1     3.4    -      -       -      -
   1650P  ILE*     1.3    77.6    -      -       -      +
   1652P  HIS*     1.3    58.0    +      -       -      +
   1653P  SER      3.5     2.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS1652 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1588P  TYR*     4.2    31.6    -      -       +      +
   1589P  ASP*     5.3     4.0    -      -       -      +
   1648P  PHE      3.0    18.2    +      -       -      +
   1649P  LEU*     3.1     5.2    -      -       -      +
   1651P  SER*     1.3    76.8    -      -       -      +
   1653P  SER*     1.3    65.7    +      -       -      +
   1655P  THR*     3.5    18.8    +      -       -      -
   1656P  ILE*     3.9     5.4    +      -       -      +
----------------------------------------------------------
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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