Contacts of the helix formed by residues 394 - 402 (chain B) in PDB entry 1LV5


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 LEU 394 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370B  MET      2.6    15.1    +      -       -      +
    371B  PHE*     3.4    19.3    -      -       +      -
    392B  PHE*     3.6    28.3    -      -       +      -
    393B  ASP*     1.3    72.2    -      -       -      +
    395B  LEU*     1.3    54.8    +      -       -      +
    397B  ALA*     2.9     2.3    +      -       -      +
    398B  ALA*     2.7    36.6    +      -       -      +
    410B  VAL*     4.3    11.4    -      -       +      -
    413B  ALA*     3.8    23.1    -      -       +      -
    454B  ILE*     4.2    24.5    -      -       +      -
    457B  LEU*     4.3    20.0    -      -       +      -
    461B  PHE*     4.1    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 395 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371B  PHE*     3.2    28.0    -      -       +      -
    372B  ASP*     3.5    41.1    -      -       +      +
    393B  ASP*     3.2    12.1    +      -       -      +
    394B  LEU*     1.3    77.7    -      -       -      +
    396B  LEU*     1.3    61.2    +      -       +      +
    398B  ALA*     4.6     0.9    -      -       -      -
    399B  TYR*     3.1    22.7    +      -       +      +
    407B  VAL*     3.8    24.2    -      -       +      +
    408B  ASP*     5.6     0.4    -      -       -      -
    609B  ALA*     3.3    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 396 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393B  ASP*     2.8    22.7    +      -       +      +
    395B  LEU*     1.3    82.6    -      -       +      +
    397B  ALA*     1.3    62.1    +      -       -      +
    399B  TYR*     3.8     6.6    -      -       +      +
    400B  LEU*     2.9    35.7    +      -       -      +
    474B  LEU*     3.5    12.1    -      -       +      -
    478B  GLU*     3.4    42.2    -      -       +      +
    479B  GLN*     3.7    15.5    -      -       +      +
    482B  SER*     4.3     7.2    -      -       -      +
    608B  GLN*     3.6    44.4    -      -       +      +
    609B  ALA*     4.8     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 397 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392B  PHE*     3.6    26.5    -      -       +      -
    393B  ASP      3.0     7.5    +      -       -      +
    394B  LEU*     2.9     7.4    +      -       -      +
    396B  LEU*     1.3    75.1    -      -       -      +
    398B  ALA*     1.3    59.6    +      -       -      +
    400B  LEU*     3.2     3.6    +      -       -      +
    401B  LEU*     2.9    32.4    +      -       -      +
    461B  PHE*     3.4    22.4    -      -       +      -
    465B  LEU*     4.0    15.8    -      -       +      +
    474B  LEU*     3.7     9.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 398 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394B  LEU      2.7    18.4    +      -       -      +
    395B  LEU      4.1     1.6    -      -       -      +
    397B  ALA*     1.3    68.7    -      -       -      +
    399B  TYR*     1.3    68.2    +      -       -      +
    401B  LEU*     2.8    15.0    +      -       -      +
    402B  ASP      3.1    13.9    +      -       -      +
    407B  VAL*     3.9    24.7    -      -       +      -
    413B  ALA*     3.8    25.8    -      -       +      -
    416B  MET*     3.9     7.8    -      -       -      +
    461B  PHE*     3.6    14.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 399 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395B  LEU*     3.1    20.1    +      -       +      +
    396B  LEU*     3.8     9.9    -      -       +      +
    398B  ALA*     1.3    78.4    -      -       -      +
    400B  LEU*     1.3    74.0    +      -       +      +
    402B  ASP      4.6     4.3    -      -       -      -
    403B  PRO*     3.1    40.8    -      -       +      +
    407B  VAL*     5.0     4.9    -      -       -      +
    478B  GLU*     4.6     5.6    -      -       -      -
    608B  GLN      3.4    19.7    +      -       -      -
    609B  ALA*     3.2    25.8    -      -       +      -
    610B  LEU*     3.2    20.6    -      -       -      -
    611B  THR*     2.8    31.3    +      -       -      -
    614B  GLY*     3.3    22.3    +      -       -      -
    615B  ARG      4.0     1.9    +      -       -      -
    769B  ARG*     4.2    19.7    -      -       +      -
    805B  LYS*     4.9     0.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 400 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396B  LEU*     2.9    25.4    +      -       -      +
    397B  ALA      3.6     3.6    -      -       -      +
    399B  TYR*     1.3    85.5    -      -       +      +
    401B  LEU*     1.3    65.7    +      -       -      +
    402B  ASP      3.4     0.3    +      -       -      -
    403B  PRO*     4.1     6.2    -      -       -      +
    465B  LEU*     4.3    10.3    -      -       +      -
    470B  GLN*     3.7    24.2    +      -       +      +
    473B  LEU*     3.4    42.0    -      -       +      -
    474B  LEU*     3.9    33.0    -      -       +      +
    478B  GLU*     4.0    13.5    -      -       +      -
    769B  ARG*     3.5    23.1    -      -       +      +
    770B  ARG*     4.8     5.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 401 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    397B  ALA      2.9    13.9    +      -       -      +
    398B  ALA      2.8    13.0    +      -       -      +
    400B  LEU*     1.3    73.1    -      -       -      +
    402B  ASP*     1.3    60.2    +      -       +      +
    403B  PRO*     4.4     0.7    -      -       -      +
    416B  MET*     4.0    12.8    -      -       +      -
    417B  LYS*     4.3    16.6    -      -       -      -
    461B  PHE*     3.3    42.0    -      -       +      -
    464B  GLU*     3.9    26.0    -      -       +      +
    465B  LEU*     3.2    32.5    -      -       +      +
    468B  ASN*     4.4     7.1    +      -       -      +
    470B  GLN*     4.2     8.9    -      -       -      +
    770B  ARG*     4.9     2.8    -      -       -      +
    772B  TYR*     3.6    21.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 402 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    398B  ALA      3.1    10.3    +      -       -      +
    399B  TYR*     3.5     3.8    -      -       -      -
    401B  LEU*     1.3    80.2    -      -       +      +
    403B  PRO*     1.3    69.1    -      -       -      +
    404B  ALA*     2.8    30.2    +      -       -      +
    405B  GLN*     3.3    37.9    +      -       +      +
    406B  GLY      4.7     0.3    +      -       -      -
    407B  VAL*     5.3     1.4    +      -       -      +
    416B  MET*     4.3     8.3    -      -       +      +
    772B  TYR*     4.2    22.7    +      -       +      +
----------------------------------------------------------
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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