Contacts of the helix formed by residues 515 - 524 (chain A) in PDB entry 1TF5


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 SER 515 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ASP*     5.2     2.2    -      -       -      -
    513A  HIS*     3.0    21.1    -      -       -      +
    514A  GLU*     1.3    80.7    -      -       -      +
    516A  ARG*     1.3    64.8    +      -       -      +
    517A  ARG*     3.1    48.8    +      -       -      +
    518A  ILE*     3.3    18.7    +      -       -      +
    519A  ASP*     3.7     1.7    +      -       -      +
    582A  GLN*     4.0     0.2    -      -       -      -
    586A  GLU*     3.7    13.1    +      -       -      -
    593A  ARG*     6.0     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 516 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    376A  THR*     3.5    25.6    +      -       -      +
    512A  ARG*     3.8    11.2    -      -       -      +
    515A  SER*     1.3    70.3    +      -       -      +
    517A  ARG*     1.3    66.4    +      -       -      +
    519A  ASP*     3.0    14.2    +      -       +      +
    520A  ASN*     2.9    35.0    +      -       -      +
    579A  GLU*     3.1    24.3    +      -       -      +
    582A  GLN*     3.6    22.2    -      -       +      +
    583A  LYS*     3.3    42.5    -      -       -      +
    586A  GLU*     3.0    41.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 517 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  ASP*     3.0    21.9    +      -       -      +
    214A  ILE*     4.4     9.0    -      -       -      +
    215A  ASP*     2.5    45.5    +      -       -      -
    373A  THR*     3.4    51.6    -      -       -      +
    374A  ALA*     4.5     1.3    -      -       -      +
    376A  THR*     5.3     7.4    -      -       -      +
    377A  GLU*     2.8    50.2    +      -       -      +
    515A  SER*     3.1    27.6    +      -       -      +
    516A  ARG*     1.3    77.9    -      -       -      +
    518A  ILE*     1.3    59.1    +      -       +      +
    520A  ASN*     3.3     3.8    +      -       -      +
    521A  GLN*     3.0    25.4    +      -       -      +
    586A  GLU*     5.9     0.8    -      -       -      +
    593A  ARG*     4.9     5.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 518 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  ASP*     5.1     0.4    -      -       -      +
    211A  SER*     5.3     4.9    -      -       -      +
    215A  ASP*     4.2    18.6    -      -       -      +
    485A  ASN*     4.1    21.3    -      -       +      +
    486A  MET*     5.8     6.5    -      -       +      -
    513A  HIS*     3.2    41.4    -      -       +      +
    515A  SER*     3.3    17.7    +      -       -      +
    516A  ARG      3.2     0.6    -      -       -      -
    517A  ARG*     1.3    78.5    -      -       +      +
    519A  ASP*     1.3    65.2    +      -       -      +
    521A  GLN*     3.1    32.8    +      -       +      +
    522A  LEU*     3.1    13.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 519 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512A  ARG*     2.8    39.9    +      -       -      -
    513A  HIS*     2.4    53.6    +      -       -      +
    515A  SER      4.0     5.8    -      -       -      -
    516A  ARG*     3.0    16.4    +      -       +      +
    518A  ILE*     1.3    75.0    -      -       -      +
    520A  ASN*     1.3    58.8    +      -       -      +
    522A  LEU*     3.2     6.6    +      -       -      +
    523A  ARG*     3.0    41.7    +      -       -      +
    537A  PHE*     3.6    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  LYS*     6.3     2.7    -      -       -      -
    373A  THR*     4.2    13.8    -      -       +      +
    516A  ARG*     2.9    30.9    +      -       -      +
    517A  ARG*     3.7     5.2    -      -       -      +
    519A  ASP*     1.3    75.2    -      -       -      +
    521A  GLN*     1.3    60.0    +      -       -      +
    523A  ARG*     2.9    34.5    +      -       +      +
    524A  GLY*     2.9    25.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  THR*     4.9     5.6    +      -       -      -
    208A  GLU*     4.2    14.7    +      -       -      +
    210A  ASP*     3.1    19.2    +      -       -      -
    211A  SER*     4.9     6.9    +      -       -      -
    371A  THR*     4.4     1.5    +      -       -      -
    372A  GLY*     5.6     2.9    -      -       -      +
    373A  THR*     2.8    34.0    +      -       +      +
    486A  MET*     5.9     1.4    -      -       -      +
    489A  ARG*     4.9    12.8    -      -       -      +
    517A  ARG      3.0    15.8    +      -       -      +
    518A  ILE*     3.1    26.4    +      -       +      +
    520A  ASN*     1.3    74.2    -      -       -      +
    522A  LEU*     1.3    65.9    +      -       -      +
    524A  GLY*     3.4     6.7    +      -       -      +
    525A  ARG*     3.4    16.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433A  LEU*     4.3     7.0    -      -       +      -
    435A  GLY*     3.7    34.8    -      -       -      +
    507A  VAL*     3.5    26.1    -      -       +      +
    509A  GLY*     3.7    24.0    -      -       -      -
    513A  HIS*     4.6     9.9    -      -       +      +
    518A  ILE      3.1    11.5    +      -       -      +
    519A  ASP*     3.4     8.3    -      -       -      +
    521A  GLN*     1.3    76.6    -      -       -      +
    523A  ARG*     1.3    67.1    +      -       -      +
    525A  ARG*     3.1    36.8    +      -       -      +
    537A  PHE*     3.8    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400A  ARG*     3.4    25.5    -      -       -      +
    402A  ASP*     3.8    31.9    -      -       -      +
    403A  ARG      4.8     9.1    +      -       -      -
    405A  ASP*     3.9    14.1    +      -       -      -
    507A  VAL*     4.7     1.1    -      -       -      -
    512A  ARG*     5.4     4.9    -      -       -      +
    519A  ASP*     3.0    32.6    +      -       -      +
    520A  ASN*     2.9    34.9    +      -       -      +
    522A  LEU*     1.3    76.8    -      -       -      +
    524A  GLY*     1.3    60.5    +      -       -      +
    525A  ARG      3.2     1.4    +      -       -      -
    526A  SER*     3.4     9.7    +      -       -      -
    535A  THR*     3.6    28.6    +      -       -      +
    537A  PHE*     3.4    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  LYS*     6.2     4.3    -      -       -      -
    102A  THR*     3.2    35.5    -      -       -      +
    400A  ARG*     4.1    12.1    -      -       -      +
    520A  ASN      2.9    17.2    +      -       -      -
    521A  GLN*     3.4     4.2    +      -       -      -
    522A  LEU      3.2     1.0    -      -       -      -
    523A  ARG*     1.3    73.2    -      -       -      +
    525A  ARG*     1.3    59.1    +      -       -      +
    526A  SER      3.0    12.4    +      -       -      +
    528A  ARG*     5.5     1.4    +      -       -      +
----------------------------------------------------------
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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