Contacts of the helix formed by residues 173 - 185 (chain 2) in PDB entry 5LN3


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 173 (chain 2).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     442  THR      3.9     3.8    +      -       -      -
     452  THR*     3.7    18.8    -      -       -      +
    1712  GLY*     3.1     1.4    -      -       -      -
    1722  SER*     1.3    78.6    -      -       -      +
    1742  SER*     1.3    62.1    +      -       -      +
    1752  LEU*     3.3     2.7    -      -       -      -
    1762  ALA*     3.1    17.5    +      -       -      +
    1772  ALA*     3.2    11.3    +      -       -      +
    2052  GLY*     5.1     3.0    -      -       -      -
    2092  ASP*     3.3    26.1    -      -       -      +
    2122  SER*     4.9     2.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 174 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     591  TYR*     4.8     9.3    +      -       -      -
     452  THR*     4.9     0.7    -      -       -      -
    1692  THR*     3.4    34.2    +      -       -      +
    1702  MET*     3.7    11.0    -      -       -      -
    1712  GLY*     3.3    29.1    +      -       -      +
    1722  SER      3.3     3.4    -      -       -      -
    1732  GLY*     1.3    74.4    -      -       -      +
    1752  LEU*     1.3    62.2    +      -       -      +
    1772  ALA*     3.4     1.9    +      -       -      +
    1782  MET*     3.1    24.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 175 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     591  TYR*     3.8    36.1    -      -       +      -
    1722  SER      4.8     3.2    +      -       -      +
    1732  GLY      3.1     1.2    +      -       -      -
    1742  SER*     1.3    79.1    -      -       -      +
    1762  ALA*     1.4    61.5    +      -       -      +
    1782  MET*     3.5     6.2    -      -       +      +
    1792  ALA*     3.4    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 176 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1732  GLY      3.1    10.0    +      -       -      +
    1752  LEU*     1.4    76.2    -      -       -      +
    1772  ALA*     1.4    64.7    +      -       -      +
    1792  ALA*     3.3    14.6    +      -       -      +
    1802  VAL*     3.5    15.9    +      -       -      +
    2042  ALA*     4.8     4.0    -      -       -      +
    2052  GLY*     4.8     2.0    -      -       -      -
    2082  ASN*     3.8    28.2    +      -       +      +
    2092  ASP*     3.6    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 177 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     452  THR*     4.4    10.5    -      -       +      -
    1692  THR*     4.2    13.0    -      -       +      +
    1732  GLY      3.2     9.5    +      -       -      +
    1742  SER      4.0     5.2    -      -       -      +
    1762  ALA*     1.4    77.6    -      -       -      +
    1782  MET*     1.4    58.0    +      -       -      +
    1802  VAL*     3.1    12.0    +      -       -      +
    1812  PHE*     3.0    49.4    +      -       +      -
    2012  ALA*     4.4    17.0    -      -       +      +
    2042  ALA*     5.2     2.0    -      -       -      -
    2052  GLY*     5.4     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 178 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     591  TYR*     3.9    31.4    -      -       +      +
     601  ILE*     5.8     9.6    -      -       +      -
     631  ARG*     3.3    39.9    -      -       +      +
    1672  TYR*     4.6     5.2    -      -       -      -
    1692  THR*     4.5    10.5    -      -       +      -
    1742  SER      3.1    17.9    +      -       -      +
    1752  LEU*     3.5     9.6    -      -       -      +
    1762  ALA      3.3     0.2    -      -       -      -
    1772  ALA*     1.4    75.0    -      -       -      +
    1792  ALA*     1.3    64.6    +      -       -      +
    1812  PHE*     3.3    16.6    +      -       -      +
    1822  GLU*     3.3    36.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 179 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1752  LEU      3.4     7.3    +      -       -      +
    1762  ALA*     3.3    12.0    +      -       -      +
    1772  ALA      3.3     0.6    -      -       -      -
    1782  MET*     1.3    80.2    -      -       -      +
    1802  VAL*     1.3    63.4    +      -       +      +
    1822  GLU*     3.6     9.4    +      -       -      +
    1832  ASP*     3.1    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 180 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1762  ALA      3.5    15.0    -      -       -      +
    1772  ALA*     3.1     7.1    +      -       -      +
    1792  ALA*     1.3    74.9    -      -       +      +
    1812  PHE*     1.4    60.8    +      -       -      +
    1822  GLU      3.5     0.2    +      -       -      -
    1832  ASP*     3.5     7.5    +      -       +      +
    1842  LYS*     3.0    53.8    +      -       +      +
    2002  GLU*     4.3    14.4    -      -       +      +
    2012  ALA*     5.7     0.2    -      -       -      -
    2042  ALA*     3.8    27.6    -      -       +      -
    2082  ASN*     5.5     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 181 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     472  ALA*     3.9    18.2    -      -       +      -
     492  VAL*     3.7    26.7    -      -       +      -
    1672  TYR*     3.9    32.3    -      +       +      -
    1682  VAL      5.1     3.4    -      -       -      -
    1692  THR*     4.1    18.4    -      -       +      -
    1772  ALA*     3.0    38.7    +      -       +      -
    1782  MET*     3.3    13.7    +      -       -      +
    1802  VAL*     1.4    62.1    -      -       -      +
    1822  GLU*     1.4    55.8    +      -       -      +
    1842  LYS*     3.6    23.1    -      -       -      +
    1852  PHE*     2.9    36.3    +      -       +      +
    1972  LEU*     5.4     1.3    -      -       +      -
    1982  VAL*     5.1     1.1    -      -       +      -
    2012  ALA*     3.6    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 182 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     631  ARG*     3.6     7.6    +      -       -      -
    1672  TYR*     2.7    39.1    +      -       -      -
    1782  MET*     3.3    39.8    +      -       +      +
    1792  ALA*     3.6     6.7    +      -       -      +
    1802  VAL      3.5     0.6    -      -       -      -
    1812  PHE*     1.4    64.2    -      -       -      +
    1832  ASP*     1.4    65.8    +      -       -      +
    1852  PHE*     3.7    14.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 183 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1792  ALA      3.1    20.1    -      -       -      +
    1802  VAL*     3.5     8.6    +      -       +      +
    1822  GLU*     1.4    79.3    -      -       -      +
    1842  LYS*     1.4    64.0    +      -       -      +
    1852  PHE      3.6     5.4    +      -       -      +
    1862  ARG*     3.0    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 184 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1802  VAL*     3.0    38.6    -      -       +      +
    1812  PHE*     3.6    26.6    -      -       -      +
    1832  ASP*     1.4    82.6    -      -       -      +
    1852  PHE*     1.4    61.8    +      -       -      +
    1862  ARG*     3.0    28.4    +      -       -      +
    1892  MET*     5.7     0.2    -      -       -      +
    1972  LEU*     3.2    63.4    +      -       +      +
    2002  GLU*     4.3    15.9    -      -       -      +
    2012  ALA*     3.4    25.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 185 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     492  VAL*     6.4     1.6    -      -       +      -
    1662  PRO*     4.3    20.2    -      -       +      -
    1672  TYR*     3.5    48.0    -      +       +      +
    1812  PHE*     2.9    23.4    +      -       +      +
    1822  GLU      3.9     7.0    -      -       -      +
    1832  ASP      3.5     7.7    -      -       -      +
    1842  LYS*     1.4    57.8    -      -       -      +
    1862  ARG*     1.4    77.3    +      -       -      +
    1872  PRO*     3.8    30.7    -      -       +      -
    1892  MET*     5.7     3.4    -      -       +      -
    1972  LEU*     5.4     4.5    -      -       -      -
----------------------------------------------------------
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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