Contacts of the helix formed by residues 42 - 60 (chain L) in PDB entry 3LUE


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 42 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43L  TRP*     1.3    77.4    +      -       -      +
     44L  GLU*     3.1     6.7    +      -       -      +
     45L  LYS*     3.2    10.3    +      -       -      +
     46L  GLN*     2.7    38.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 43 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28C  ARG      6.0     1.3    -      -       -      -
     92C  ASN      4.6     9.0    -      -       -      -
     93C  GLU*     4.2    23.3    -      -       -      +
     42L  ALA*     1.3    87.9    -      -       -      +
     44L  GLU*     1.3    91.3    +      -       +      +
     46L  GLN*     3.3     8.9    +      -       -      +
     47L  GLN*     2.8    75.5    +      -       -      +
    135L  LYS*     4.7    27.4    -      -       +      -
    138L  LEU*     5.1     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 44 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42L  ALA      3.1     3.8    -      -       -      +
     43L  TRP*     1.3   108.6    +      -       +      +
     45L  LYS*     1.3    61.8    +      -       -      +
     47L  GLN*     4.6     0.9    -      -       -      -
     48L  ARG*     3.1    25.3    +      -       -      +
    134L  LEU*     3.2    37.6    -      -       +      +
    135L  LYS*     3.7    30.4    +      -       +      +
    138L  LEU*     3.9    12.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 45 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42L  ALA*     3.2     6.2    +      -       -      +
     44L  GLU*     1.3    79.2    -      -       -      +
     46L  GLN*     1.3    77.1    +      -       -      +
     48L  ARG*     3.5    11.0    +      -       -      +
     49L  LYS*     3.2    21.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 46 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42L  ALA*     2.7    38.7    +      -       +      +
     43L  TRP*     3.6     7.2    -      -       -      +
     45L  LYS*     1.3    91.4    -      -       -      +
     47L  GLN*     1.3    67.4    +      -       -      +
     49L  LYS*     2.9    19.5    +      -       -      +
     50L  THR*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 47 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  ASN      4.3     1.2    +      -       -      +
     93C  GLU      4.4     2.4    +      -       -      -
     95C  ARG*     2.3    60.4    +      -       +      +
     43L  TRP*     2.8    55.2    +      -       -      +
     44L  GLU*     4.0     3.4    -      -       -      +
     46L  GLN*     1.3    73.3    -      -       -      +
     48L  ARG*     1.3    57.1    +      -       -      +
     50L  THR*     4.6     3.8    -      -       -      +
     51L  PHE*     2.9    52.5    +      -       +      -
    138L  LEU*     4.0    16.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 48 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44L  GLU      3.1    18.2    +      -       -      +
     45L  LYS*     3.6    11.5    +      -       -      +
     46L  GLN      3.1     0.6    -      -       -      -
     47L  GLN*     1.3    77.2    -      -       -      +
     49L  LYS*     1.3    54.6    +      -       -      +
     51L  PHE*     4.2     0.3    -      -       -      +
     52L  THR*     2.5    41.6    +      -       -      +
     67L  GLU      4.6     2.1    +      -       -      -
     68L  ASN*     3.0    29.6    -      -       -      +
     69L  ILE*     3.7    17.2    -      -       +      +
     70L  GLU*     2.5    43.6    +      -       -      -
    134L  LEU*     4.2    15.9    -      -       +      -
    138L  LEU*     3.9    15.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 49 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45L  LYS      3.2     9.6    +      -       -      +
     46L  GLN*     2.9    18.7    +      -       -      +
     48L  ARG*     1.3    82.9    -      -       -      +
     50L  THR*     1.3    73.8    +      -       -      +
     52L  THR*     3.6     4.9    -      -       -      -
     53L  ALA*     3.0    31.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 50 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46L  GLN*     2.9    17.9    +      -       -      +
     47L  GLN*     4.1     4.3    -      -       -      -
     49L  LYS*     1.3    90.6    +      -       -      +
     51L  PHE*     1.3    67.4    +      -       +      +
     53L  ALA*     3.3     6.7    +      -       -      +
     54L  TRP*     2.9    30.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 51 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95C  ARG*     0.9   146.0    -      -       +      -
     47L  GLN*     2.9    41.9    +      -       +      +
     50L  THR*     1.3    81.8    -      -       +      +
     52L  THR*     1.3    58.7    +      -       -      +
     54L  TRP*     3.2     6.6    +      -       -      +
     55L  CYS*     2.8    33.6    +      -       -      -
     69L  ILE*     4.0    15.5    -      -       +      -
    138L  LEU*     3.3    30.3    -      -       +      -
    141L  ILE*     4.0    13.2    -      -       +      -
    142L  TRP*     3.7     3.8    -      +       +      -
    145L  ILE*     3.7    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 52 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48L  ARG*     2.5    28.4    +      -       -      +
     49L  LYS*     3.6     5.2    -      -       -      -
     51L  PHE*     1.3    77.1    -      -       -      +
     53L  ALA*     1.3    63.1    +      -       -      +
     55L  CYS*     3.2     2.8    +      -       -      +
     56L  ASN*     2.9    39.3    +      -       -      +
     66L  ILE*     4.0    17.3    -      -       +      +
     67L  GLU      4.0    19.9    +      -       -      +
     69L  ILE*     3.6    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 53 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49L  LYS*     3.0    18.8    +      -       +      +
     50L  THR*     3.6     6.7    -      -       -      +
     52L  THR*     1.3    77.5    -      -       -      +
     54L  TRP*     1.3    63.4    +      -       -      +
     56L  ASN*     3.4     6.9    +      -       -      +
     57L  SER*     3.0    24.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 54 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50L  THR*     2.9    17.3    +      -       +      +
     51L  PHE*     3.5     9.2    -      -       -      +
     53L  ALA*     1.3    77.5    -      -       -      +
     55L  CYS*     1.3    85.8    +      -       -      +
     57L  SER*     2.7    26.2    +      -       -      -
     58L  HIS*     3.5    34.9    +      +       -      -
     82L  LEU*     4.1    25.6    -      -       +      -
     86L  ILE*     4.1    25.4    -      -       +      -
    141L  ILE*     4.9     0.9    -      -       +      -
    144L  ILE*     4.2     5.2    -      -       +      -
    145L  ILE*     3.6    47.3    -      -       +      +
    148L  PHE      5.8     0.2    -      -       -      -
    149L  ALA*     4.2    25.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 55 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51L  PHE      2.8    26.0    +      -       -      +
     52L  THR      3.6     4.3    -      -       -      +
     54L  TRP*     1.3    83.2    -      -       -      +
     56L  ASN*     1.3    58.4    +      -       -      +
     58L  HIS*     3.1     5.7    +      -       -      +
     59L  LEU*     2.9    34.7    +      -       +      +
     66L  ILE*     4.1    14.8    -      -       +      -
     69L  ILE*     4.7     2.0    -      -       -      -
     73L  PHE*     3.9    14.1    -      -       +      -
     82L  LEU*     3.7    25.1    -      -       +      +
    141L  ILE*     3.8    31.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 56 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52L  THR*     2.9    27.0    +      -       -      +
     53L  ALA*     3.7     7.0    -      -       -      +
     55L  CYS*     1.3    73.3    -      -       -      +
     57L  SER*     1.3    56.2    +      -       -      +
     58L  HIS      3.0     5.4    -      -       -      -
     59L  LEU*     4.2     3.5    -      -       -      +
     60L  ARG*     3.0    20.1    +      -       -      +
     65L  GLN*     2.7    49.9    +      -       -      +
     66L  ILE*     2.7    54.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 57 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53L  ALA      3.0    14.2    +      -       -      -
     54L  TRP*     2.7    25.0    +      -       -      -
     56L  ASN*     1.3    75.8    -      -       -      +
     58L  HIS*     1.3    66.0    +      -       -      +
     60L  ARG*     2.9    43.7    +      -       -      +
     61L  LYS*     3.5    11.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 58 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54L  TRP*     3.5    56.0    +      +       -      -
     55L  CYS      3.1     7.0    +      -       -      +
     56L  ASN      3.0     0.4    -      -       -      -
     57L  SER*     1.3    84.6    +      -       -      +
     59L  LEU*     1.3    65.8    +      -       -      +
     60L  ARG      3.1     1.8    -      -       -      -
     61L  LYS*     3.0    48.2    +      -       -      +
     62L  ALA      4.1     0.7    +      -       -      -
     82L  LEU*     3.8    13.7    -      -       +      -
     85L  VAL*     3.6    17.3    -      -       +      +
     86L  ILE*     3.5    20.3    -      -       +      +
    149L  ALA*     5.8     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 59 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55L  CYS*     2.9    23.1    +      -       +      +
     56L  ASN*     4.2    10.5    -      -       -      +
     58L  HIS*     1.3    76.2    -      -       -      +
     60L  ARG*     1.3    52.9    +      -       -      +
     62L  ALA*     2.7    28.9    +      -       -      +
     63L  GLY      3.3     6.2    +      -       -      -
     64L  THR*     3.3    35.9    +      -       +      +
     65L  GLN*     4.2     1.3    -      -       -      +
     66L  ILE*     3.8    28.9    -      -       +      +
     73L  PHE*     4.4    14.8    -      -       +      -
     78L  LYS*     3.6    12.1    -      -       +      +
     81L  LEU*     4.3     8.5    -      -       +      -
     82L  LEU*     3.6    35.9    -      -       +      +
     85L  VAL*     5.0     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 60 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56L  ASN      3.0    18.8    +      -       -      +
     57L  SER*     2.9    36.8    +      -       -      +
     59L  LEU*     1.3    77.6    -      -       -      +
     61L  LYS*     1.3    67.4    +      -       +      +
     62L  ALA      3.1     0.2    -      -       -      -
     63L  GLY*     3.1    17.9    +      -       -      +
     64L  THR      3.3    10.5    +      -       -      +
     65L  GLN*     3.5    12.6    -      -       -      +
----------------------------------------------------------
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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