Contacts of the helix formed by residues 41 - 55 (chain P) 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 GLN 41 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36P  LYS*     4.3     9.4    +      -       -      +
     37P  GLU*     3.7    36.7    +      -       -      +
     40P  LEU*     1.3    83.3    -      -       -      +
     42P  GLU*     1.4    92.1    +      -       +      +
     43P  VAL      3.4     2.2    -      -       -      -
     44P  ILE*     3.6     3.6    -      -       -      +
     45P  GLU*     3.2    33.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 42 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37P  GLU*     3.4    30.5    +      -       -      +
     41P  GLN*     1.4    98.7    -      -       +      +
     43P  VAL*     1.3    63.5    +      -       +      +
     45P  GLU*     4.3     1.0    -      -       -      +
     46P  THR*     3.0    35.6    +      -       -      +
     73P  MET*     4.2    19.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 43 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37P  GLU*     3.8    14.2    +      -       +      +
     38P  GLY      3.6    12.8    -      -       -      +
     41P  GLN      3.4     0.4    -      -       -      -
     42P  GLU*     1.3    79.9    -      -       +      +
     44P  ILE*     1.3    59.0    +      -       -      +
     46P  THR*     3.3     9.1    -      -       +      +
     47P  LEU*     2.9    41.4    +      -       +      +
     70P  VAL*     4.8     6.1    -      -       +      +
     73P  MET*     4.2    22.7    -      -       +      +
     74P  CYS*     3.7    28.9    -      -       +      +
     77P  ALA*     3.9    23.8    -      -       +      -
     78P  LYS*     4.0     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 44 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38P  GLY      4.2     2.6    +      -       -      +
     39P  ARG*     3.7    31.9    -      -       +      +
     40P  LEU*     4.0     2.5    -      -       -      -
     41P  GLN      3.6    25.5    -      -       -      +
     43P  VAL*     1.3    78.2    -      -       -      +
     45P  GLU*     1.4    76.8    +      -       +      +
     47P  LEU*     3.1    21.5    +      -       +      +
     48P  LEU*     3.1    38.4    +      -       +      +
     86P  ASN*     5.5     7.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 45 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40P  LEU      5.8     0.7    -      -       -      -
     41P  GLN*     3.2    20.3    +      -       -      +
     42P  GLU*     4.4     1.8    -      -       -      +
     44P  ILE*     1.4    86.7    -      -       +      +
     46P  THR*     1.4    63.2    +      -       -      +
     48P  LEU*     3.3    31.4    +      -       -      +
     49P  SER*     3.3    20.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 46 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42P  GLU      3.0    25.9    +      -       -      +
     43P  VAL*     3.3    14.4    -      -       +      +
     45P  GLU*     1.4    77.5    -      -       -      +
     47P  LEU*     1.4    59.3    +      -       -      +
     49P  SER*     3.6     4.9    +      -       -      -
     50P  LEU*     3.2    25.6    +      -       -      +
     66P  ILE*     4.8    10.7    -      -       -      +
     70P  VAL*     3.8    25.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 47 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38P  GLY      6.0     0.4    -      -       -      +
     43P  VAL*     2.9    35.3    +      -       +      +
     44P  ILE*     3.1    24.7    +      -       +      +
     46P  THR*     1.4    75.6    -      -       -      +
     48P  LEU*     1.3    64.3    +      -       +      +
     50P  LEU*     3.5     4.7    +      -       +      +
     51P  GLU*     3.1    40.0    +      -       +      +
     70P  VAL*     4.1    28.0    -      -       +      -
     74P  CYS*     5.3     7.2    -      -       +      -
     78P  LYS*     6.1     0.4    -      -       -      +
     86P  ASN*     5.3    10.5    -      -       +      +
     90P  LEU*     4.0    32.1    -      -       +      -
     93P  ARG*     5.0     5.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 48 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44P  ILE*     3.1    27.3    +      -       +      +
     45P  GLU*     3.3    29.8    +      -       -      +
     47P  LEU*     1.3    77.0    -      -       +      +
     49P  SER*     1.4    61.6    +      -       -      +
     51P  GLU*     3.8    13.7    -      -       -      +
     52P  LYS*     3.1    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 49 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45P  GLU      3.3    16.1    +      -       -      -
     46P  THR*     4.1     6.2    -      -       -      -
     48P  LEU*     1.4    73.7    -      -       -      +
     50P  LEU*     1.4    60.7    +      -       -      +
     52P  LYS*     3.5     8.9    +      -       -      +
     53P  GLN*     3.1    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 50 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46P  THR      3.2    15.6    +      -       -      +
     47P  LEU*     3.8     6.5    -      -       +      +
     49P  SER*     1.4    78.2    -      -       -      +
     51P  GLU*     1.4    57.1    +      -       +      +
     53P  GLN*     2.9    12.4    +      -       -      +
     54P  THR*     2.8    62.4    +      -       -      +
     62P  SER*     4.0    10.3    -      -       -      +
     66P  ILE*     3.7    50.5    -      -       +      +
     67P  LEU*     4.2    14.1    -      -       +      +
     70P  VAL*     3.6    34.3    -      -       +      -
     96P  GLN*     5.8     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 51 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47P  LEU*     3.1    37.6    +      -       +      +
     48P  LEU*     3.8    14.8    +      -       -      +
     50P  LEU*     1.4    79.6    -      -       +      +
     52P  LYS*     1.4    59.0    +      -       -      +
     54P  THR*     3.8     5.8    -      -       -      -
     55P  ARG*     3.0    29.6    +      -       -      -
     90P  LEU*     5.4     2.5    -      -       +      -
     93P  ARG*     3.1    60.8    +      -       +      +
     95P  SER*     4.7     9.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 52 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  ALA*     2.9    30.6    +      -       -      +
    244A  GLU*     3.6    22.9    -      -       +      +
    246A  ASP*     3.9    16.2    +      -       -      +
     48P  LEU      3.1    11.9    +      -       -      +
     49P  SER*     3.5    11.9    -      -       -      +
     50P  LEU      3.2     0.2    -      -       -      -
     51P  GLU*     1.4    78.2    -      -       -      +
     53P  GLN*     1.4    61.1    +      -       -      +
     55P  ARG*     3.3    19.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 53 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49P  SER*     3.1    15.2    +      -       -      +
     50P  LEU*     2.9    20.6    +      -       -      +
     52P  LYS*     1.4    73.7    -      -       -      +
     54P  THR*     1.3    60.8    +      -       -      +
     55P  ARG*     3.9     5.2    -      -       -      +
     61P  VAL*     3.3    21.8    +      -       +      +
     62P  SER*     3.1    32.9    +      -       -      +
     66P  ILE*     5.5     7.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 54 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50P  LEU*     2.8    32.1    +      -       -      +
     51P  GLU*     3.8     6.5    -      -       -      -
     53P  GLN*     1.3    68.6    -      -       -      +
     55P  ARG*     1.4    81.0    +      -       -      +
     58P  SER*     4.1     4.0    -      -       -      -
     59P  ASP      3.9     7.8    -      -       -      +
     61P  VAL*     3.2    17.8    -      -       +      +
     62P  SER*     3.2    17.6    +      -       -      +
     67P  LEU*     6.1     1.1    -      -       +      -
     95P  SER*     3.8    17.3    -      -       -      -
     96P  GLN*     3.6    33.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 55 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  ASP*     3.0    50.7    +      -       -      +
     51P  GLU      3.0    14.8    +      -       -      -
     52P  LYS      3.3    18.6    -      -       -      +
     53P  GLN      3.9     5.8    -      -       -      +
     54P  THR*     1.4    99.6    -      -       -      +
     56P  THR*     1.4    58.4    +      -       -      +
     57P  ALA*     3.3    21.7    -      -       +      +
     58P  SER*     3.5    30.0    +      -       -      +
     61P  VAL*     5.1     4.3    -      -       -      -
     95P  SER*     4.0     6.1    +      -       -      -
----------------------------------------------------------
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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