Contacts of the helix formed by residues 570 - 583 (chain A) in PDB entry 1L8A


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 ASN 570 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  TYR*     2.8    29.5    +      -       -      -
    241A  ALA*     4.7     6.1    -      -       -      +
    244A  ILE*     4.8     4.8    -      -       -      +
    520A  ALA*     4.5     1.7    -      -       -      +
    567A  GLU*     3.5    18.9    +      -       -      +
    568A  GLY      2.8     8.7    +      -       -      -
    569A  ILE*     1.3    75.4    -      -       -      +
    571A  GLU*     1.3    60.4    +      -       -      +
    572A  LEU      3.6     0.3    +      -       -      -
    573A  GLY*     2.7    25.7    +      -       -      -
    574A  ALA*     2.9    27.8    +      -       -      +
    234B  ASP*     3.5    22.3    +      -       +      +
    235B  GLU*     3.4     5.4    +      -       -      -
    236B  PRO*     3.1    22.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 571 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    520A  ALA*     4.4    12.5    -      -       +      +
    569A  ILE*     5.3     0.7    -      -       -      +
    570A  ASN*     1.3    73.0    +      -       -      +
    572A  LEU*     1.3    58.5    +      -       -      +
    574A  ALA*     4.3     0.2    -      -       -      -
    575A  GLY*     2.8    26.2    +      -       -      -
    596A  TYR*     3.4    24.9    +      -       -      +
    598A  TYR*     4.9     5.9    -      -       +      +
    599A  TYR*     5.6     1.2    +      -       -      -
    602A  PHE*     3.6    36.7    -      -       +      +
    606A  ARG*     4.6     7.0    -      -       +      -
    607A  ILE*     3.9    14.5    -      -       +      +
    887A  TPP      2.8    37.7    +      -       -      +
    235B  GLU*     2.6    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 572 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  LEU*     5.0     7.2    -      -       +      -
    199A  ILE*     4.0    13.9    -      -       +      -
    237A  GLU*     3.7    39.5    -      -       +      +
    570A  ASN*     3.3     0.8    +      -       -      -
    571A  GLU*     1.3    78.2    -      -       -      +
    573A  GLY*     1.3    59.8    +      -       -      +
    575A  GLY*     3.2     2.5    +      -       -      -
    576A  CYS*     2.9    34.5    +      -       -      -
    606A  ARG*     5.5     0.9    -      -       -      +
    607A  ILE*     3.6    30.6    -      -       +      +
    610A  LEU*     4.0    24.0    -      -       +      -
    235B  GLU*     4.9     1.2    +      -       -      -
    236B  PRO*     4.0    23.8    -      -       +      -
    237B  GLU*     5.1     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 573 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  ILE*     4.3     3.5    -      -       -      +
    203A  TYR*     3.3    46.6    -      -       -      -
    567A  GLU*     4.6     0.7    -      -       -      -
    570A  ASN*     2.7    25.2    +      -       -      -
    572A  LEU*     1.3    74.9    -      -       -      +
    574A  ALA*     1.3    59.5    +      -       -      +
    576A  CYS*     3.1     2.0    +      -       -      +
    577A  SER*     3.0    18.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 574 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  ILE*     4.0    13.4    -      -       +      +
    519A  ILE      4.7     0.2    -      -       -      +
    520A  ALA*     4.5     4.7    -      -       +      -
    567A  GLU*     3.8    21.1    -      -       +      +
    570A  ASN      2.9    16.5    +      -       -      +
    573A  GLY*     1.3    71.9    -      -       -      +
    575A  GLY*     1.3    61.4    +      -       -      +
    577A  SER*     3.1     3.9    +      -       -      +
    578A  TRP*     2.8    28.8    +      -       -      +
    596A  TYR*     3.4    35.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 575 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571A  GLU      2.8    16.2    +      -       -      -
    572A  LEU      3.6     3.1    -      -       -      -
    574A  ALA*     1.3    76.7    -      -       -      +
    576A  CYS*     1.3    56.8    +      -       -      +
    578A  TRP*     3.3    13.0    +      -       -      +
    579A  LEU*     2.8    28.6    +      -       -      +
    596A  TYR*     4.0    10.3    -      -       -      -
    607A  ILE*     4.3     6.1    -      -       -      -
    610A  LEU*     3.5    17.7    -      -       -      +
    623A  LEU*     5.9     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 576 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  ILE*     3.8    24.9    -      -       -      +
    200A  GLY*     3.8    25.1    -      -       -      +
    203A  TYR*     3.6    23.9    -      -       +      +
    572A  LEU*     2.9    18.8    +      -       -      +
    573A  GLY      3.4     9.2    -      -       -      +
    574A  ALA      3.1     0.2    -      -       -      -
    575A  GLY*     1.3    75.8    -      -       -      +
    577A  SER*     1.3    58.2    +      -       -      +
    579A  LEU*     3.5     7.7    +      -       -      +
    580A  ALA*     3.0    27.0    +      -       -      +
    610A  LEU*     3.8    20.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 577 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  TYR*     3.2    21.7    +      -       -      +
    206A  LYS*     4.0     3.1    +      -       -      +
    207A  PHE*     4.5     4.8    -      -       -      +
    518A  ILE*     4.0     5.2    -      -       -      -
    565A  LEU*     3.9    18.9    -      -       -      +
    567A  GLU*     2.6    29.6    +      -       -      -
    573A  GLY      3.0     8.0    +      -       -      -
    574A  ALA*     3.1     8.5    +      -       -      -
    576A  CYS*     1.3    72.8    -      -       -      +
    578A  TRP*     1.3    67.8    +      -       -      +
    580A  ALA*     3.2     6.3    +      -       -      +
    581A  ALA*     2.9    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 578 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  ILE*     3.4    15.0    -      -       +      +
    574A  ALA      2.8    13.2    +      -       -      +
    575A  GLY*     3.4    14.8    -      -       -      +
    577A  SER*     1.3    77.9    -      -       -      +
    579A  LEU*     1.3    68.1    +      -       +      +
    581A  ALA      3.3     0.5    +      -       -      -
    582A  ALA*     2.7    38.3    +      -       +      +
    594A  PRO*     3.4    26.0    +      -       +      +
    596A  TYR*     3.6    19.5    -      -       +      -
    610A  LEU*     6.1     1.1    -      -       +      -
    611A  CYS*     6.2     0.7    -      -       -      -
    614A  ALA*     3.9    15.5    -      -       +      -
    619A  ALA*     3.9    22.4    -      -       +      -
    621A  GLY*     3.6    27.1    -      -       -      -
    622A  PHE      2.8    31.4    +      -       -      +
    623A  LEU*     3.5    31.0    -      -       +      -
    686A  TYR*     3.7    31.4    -      +       +      -
----------------------------------------------------------
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Residues in contact with LEU 579 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  GLY*     5.9     5.2    -      -       -      -
    575A  GLY      2.8    18.1    +      -       -      +
    576A  CYS*     3.7     7.9    -      -       -      +
    577A  SER      3.2     0.2    -      -       -      -
    578A  TRP*     1.3    81.2    -      -       +      +
    580A  ALA*     1.3    58.5    +      -       -      +
    582A  ALA*     3.8     1.1    -      -       -      -
    583A  THR*     2.7    52.6    +      -       +      +
    610A  LEU*     4.0    26.9    -      -       +      -
    613A  ALA*     5.2     2.5    -      -       +      -
    614A  ALA*     3.8    34.8    -      -       +      +
    617A  GLN*     3.5    27.6    -      -       +      +
    619A  ALA*     3.9     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 580 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  GLY      5.6     0.2    -      -       -      +
    203A  TYR      4.0     2.0    -      -       -      +
    204A  GLN*     3.9    32.8    +      -       +      +
    207A  PHE*     3.7    30.7    -      -       +      -
    576A  CYS      3.0    17.5    +      -       -      +
    577A  SER      3.2     4.9    +      -       -      +
    579A  LEU*     1.3    77.4    -      -       -      +
    581A  ALA*     1.3    62.6    +      -       -      +
    583A  THR*     3.5     5.7    +      -       -      -
    584A  SER*     3.2    22.9    +      -       -      -
    617A  GLN*     5.6     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 581 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  PHE*     3.5    30.9    -      -       +      -
    516A  VAL*     4.1    13.5    -      -       +      -
    577A  SER      2.9    15.5    +      -       -      +
    578A  TRP*     3.6     4.3    -      -       -      +
    580A  ALA*     1.3    78.3    -      -       -      +
    582A  ALA*     1.3    58.8    +      -       -      +
    583A  THR      3.2     1.6    +      -       -      -
    584A  SER*     3.3    14.4    +      -       -      -
    592A  MET*     3.2    19.6    +      -       +      +
    594A  PRO*     3.7    20.4    -      -       +      -
    678A  TYR*     4.6     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 582 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578A  TRP*     2.7    29.0    +      -       +      +
    579A  LEU*     3.3     3.6    +      -       -      +
    581A  ALA*     1.3    71.0    -      -       -      +
    583A  THR*     1.3    58.3    +      -       -      +
    584A  SER      3.6     0.2    -      -       -      -
    585A  TYR*     3.3    13.0    -      -       -      -
    594A  PRO*     3.6    11.4    -      -       +      +
    619A  ALA*     3.8    14.8    -      -       +      -
    620A  ARG      3.0    51.2    +      -       -      +
    621A  GLY      4.3     1.1    -      -       -      +
    678A  TYR*     4.1     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 583 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  GLN*     4.8     2.3    +      -       -      -
    579A  LEU*     2.7    27.6    +      -       +      +
    580A  ALA*     3.5     6.7    +      -       -      -
    582A  ALA*     1.3    82.9    -      -       -      +
    584A  SER*     1.3    59.7    +      -       -      +
    585A  TYR*     3.2     9.0    -      -       +      -
    586A  SER*     3.2     8.0    +      -       -      -
    587A  THR*     3.0    34.2    +      -       -      -
    617A  GLN*     3.1    52.0    +      -       -      +
    618A  GLN      4.2     1.3    -      -       -      +
    619A  ALA*     3.7    13.7    -      -       -      -
----------------------------------------------------------
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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