Contacts of the helix formed by residues 406 - 420 (chain B) in PDB entry 1L0N


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 ALA 406 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357B  VAL*     5.2     0.2    -      -       -      -
    361B  LYS*     5.0     0.7    -      -       -      -
    404B  ALA      3.1     4.4    +      -       -      +
    405B  VAL*     1.3    81.4    -      -       -      +
    407B  ASP*     1.3    66.9    +      -       -      +
    408B  ALA*     3.2     9.6    -      -       +      +
    409B  ASP*     2.7    31.4    +      -       -      +
    410B  VAL*     3.3    10.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 407 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352B  LEU*     4.0     2.1    -      -       +      +
    353B  SER      2.9    22.1    -      -       -      +
    354B  ASN*     3.4    25.6    +      -       -      +
    357B  VAL*     3.5    35.0    -      -       +      +
    358B  GLN*     5.9     0.3    +      -       -      -
    361B  LYS*     5.2     1.0    +      -       -      -
    406B  ALA*     1.3    72.9    -      -       -      +
    408B  ALA*     1.3    58.8    +      -       -      +
    410B  VAL*     3.1     7.3    +      -       -      +
    411B  ILE*     2.9    37.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 408 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406B  ALA*     3.2     6.9    -      -       +      +
    407B  ASP*     1.3    76.7    -      -       -      +
    409B  ASP*     1.3    61.8    +      -       -      +
    411B  ILE*     3.8    13.2    -      -       +      +
    412B  ASN*     2.8    45.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 409 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271B  ALA*     3.8    25.5    -      -       +      +
    404B  ALA      3.8     3.8    -      -       -      +
    405B  VAL*     3.6     8.6    -      -       +      -
    406B  ALA*     2.7    37.5    +      -       -      +
    408B  ALA*     1.3    79.2    -      -       -      +
    410B  VAL*     1.3    58.1    +      -       -      +
    412B  ASN*     3.2     9.9    +      -       -      +
    413B  ALA      2.9    24.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 410 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271B  ALA*     4.5     8.1    -      -       -      +
    274B  VAL*     3.7    29.4    -      -       +      -
    275B  LEU*     4.0    30.7    -      -       +      +
    278B  VAL*     4.4     8.3    -      -       +      -
    347B  ILE*     4.9     0.9    -      -       +      -
    352B  LEU*     3.7    20.0    -      -       +      -
    357B  VAL*     4.2     9.9    -      -       +      -
    405B  VAL*     3.8     9.4    -      -       +      -
    406B  ALA      3.6    12.3    -      -       -      +
    407B  ASP      3.1     7.1    +      -       -      +
    409B  ASP*     1.3    76.7    -      -       -      +
    411B  ILE*     1.3    65.8    +      -       -      +
    413B  ALA*     3.1    12.0    +      -       -      +
    414B  ALA*     3.1    11.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 411 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347B  ILE*     3.7    22.9    -      -       -      +
    348B  ALA*     3.9    13.2    -      -       -      +
    350B  GLY*     4.4    17.7    -      -       -      +
    352B  LEU*     3.8    25.1    -      -       +      +
    407B  ASP*     2.9    34.0    +      -       +      +
    408B  ALA*     3.8    11.0    -      -       +      +
    410B  VAL*     1.3    74.3    -      -       -      +
    412B  ASN*     1.4    67.1    +      -       -      +
    414B  ALA*     2.9    17.5    +      -       -      +
    415B  LYS*     2.9    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 412 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408B  ALA*     2.8    37.4    +      -       -      +
    409B  ASP*     3.6     9.5    +      -       -      +
    411B  ILE*     1.4    73.9    -      -       -      +
    413B  ALA*     1.4    55.2    +      -       -      +
    415B  LYS*     3.2    28.3    +      -       -      +
    416B  LYS*     2.8    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 413 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268B  GLU*     5.7     2.9    -      -       +      -
    271B  ALA*     4.5     4.0    -      -       +      -
    272B  PHE*     3.6    56.2    -      -       +      +
    275B  LEU*     3.8     8.5    -      -       +      -
    409B  ASP      2.9    16.0    +      -       -      +
    410B  VAL*     3.1     7.8    +      -       -      +
    412B  ASN*     1.4    69.8    -      -       -      +
    414B  ALA*     1.3    66.5    +      -       -      +
    416B  LYS*     3.0     6.7    +      -       -      +
    417B  PHE*     2.9    19.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 414 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275B  LEU*     3.5    15.6    -      -       +      +
    344B  VAL*     4.3     9.4    -      -       +      +
    347B  ILE*     3.9    22.4    -      -       +      -
    348B  ALA*     3.7    20.6    -      -       +      +
    410B  VAL      3.1     6.4    +      -       -      +
    411B  ILE      2.9     9.9    +      -       -      +
    413B  ALA*     1.3    75.8    -      -       -      +
    415B  LYS*     1.3    58.4    +      -       -      +
    417B  PHE*     2.9     8.6    +      -       -      +
    418B  VAL*     2.9    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 415 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348B  ALA*     3.6    31.3    -      -       +      +
    411B  ILE*     2.9    17.8    +      -       -      +
    412B  ASN*     3.4    29.1    +      -       -      +
    413B  ALA      3.1     0.2    -      -       -      -
    414B  ALA*     1.3    78.3    -      -       -      +
    416B  LYS*     1.3    61.6    +      -       -      +
    418B  VAL*     3.6     3.7    +      -       +      +
    419B  SER*     3.1    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 416 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259B  ALA*     4.7     1.9    -      -       -      +
    260B  GLU*     4.2    16.2    -      -       -      +
    261B  SER      4.1    15.7    +      -       -      -
    268B  GLU*     2.7    36.8    +      -       -      +
    272B  PHE*     4.2    10.5    -      -       +      -
    412B  ASN      2.8    13.5    +      -       -      +
    413B  ALA*     3.0    10.7    +      -       -      +
    415B  LYS*     1.3    76.5    -      -       -      +
    417B  PHE*     1.3    65.4    +      -       -      +
    419B  SER*     4.0     3.4    +      -       -      -
    420B  GLY*     3.3    19.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 417 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257B  LEU*     4.3    10.8    -      -       +      -
    258B  VAL*     3.9     7.0    -      -       -      -
    259B  ALA*     3.7    23.6    -      -       +      +
    260B  GLU      5.6     0.7    -      -       -      -
    272B  PHE*     5.0     2.0    -      -       +      -
    322B  PHE*     3.5    37.0    -      +       +      -
    323B  GLY*     3.7    18.8    -      -       -      -
    324B  PHE*     4.2    15.5    -      +       -      -
    341B  TYR*     3.5    32.1    -      +       -      -
    344B  VAL*     3.5    31.0    -      -       +      -
    413B  ALA      2.9    12.0    +      -       -      +
    414B  ALA*     2.9     7.4    +      -       -      +
    416B  LYS*     1.3    80.5    -      -       -      +
    418B  VAL*     1.3    60.9    +      -       -      +
    419B  SER      3.1     0.9    +      -       -      -
    420B  GLY      3.4     2.6    +      -       -      -
    422B  LYS*     2.9    32.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 418 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341B  TYR*     3.3    12.8    +      -       +      +
    344B  VAL*     3.9    18.4    -      -       +      -
    345B  LYS*     3.9    33.7    -      -       +      +
    348B  ALA*     3.8    21.3    -      -       +      -
    414B  ALA      2.9    18.6    +      -       -      +
    415B  LYS*     4.1     5.8    -      -       +      +
    416B  LYS      3.4     0.2    -      -       -      -
    417B  PHE*     1.3    81.8    -      -       +      +
    419B  SER*     1.3    56.0    +      -       -      +
    422B  LYS*     2.5    19.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 419 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415B  LYS*     3.1    18.0    +      -       -      +
    416B  LYS*     4.0     4.0    +      -       -      -
    417B  PHE      3.2     0.6    -      -       -      -
    418B  VAL*     1.3    80.2    -      -       -      +
    420B  GLY*     1.3    63.7    +      -       -      +
    421B  ARG      3.9     0.7    +      -       -      -
    422B  LYS*     4.0     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 420 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259B  ALA*     4.7     6.7    -      -       -      -
    260B  GLU      5.7     1.6    -      -       -      -
    416B  LYS      3.3    16.7    +      -       -      -
    417B  PHE      3.4     3.7    +      -       -      -
    419B  SER*     1.3    78.7    -      -       -      +
    421B  ARG*     1.3    68.5    +      -       -      -
    422B  LYS*     3.1    23.7    +      -       -      +
----------------------------------------------------------
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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