Contacts of the helix formed by residues 1527 - 1538 (chain A) in PDB entry 6FF7


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 ASN1527 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1255A  THR*     4.8     9.1    -      -       -      -
   1525A  GLY      4.0     0.6    +      -       -      -
   1526A  LEU*     1.3    76.0    -      -       -      +
   1528A  GLN*     1.3    64.2    +      -       -      +
   1529A  ILE*     3.4     4.5    -      -       +      +
   1530A  PRO*     4.3    12.0    -      -       +      +
   1531A  ASN*     4.3     8.7    +      -       -      +
    215t  ASP*     4.2    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1528 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1526A  LEU      3.6     1.7    +      -       -      +
   1527A  ASN*     1.3    72.5    -      -       -      +
   1529A  ILE*     1.3    60.0    +      -       -      +
   1530A  PRO      3.5     0.2    -      -       -      -
   1531A  ASN*     3.3     8.7    +      -       -      +
   1532A  ARG*     2.9    30.0    +      -       -      +
    215t  ASP*     3.2    21.8    +      -       -      +
    216t  SER      4.8     3.4    -      -       -      +
    217t  CYS      3.7    20.4    -      -       -      +
    218t  LYS*     4.8     6.5    -      -       -      +
    219t  PHE      5.9     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1529 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1527A  ASN*     3.4     3.4    -      -       +      +
   1528A  GLN*     1.3    76.1    -      -       -      +
   1530A  PRO*     1.4    59.3    -      -       -      +
   1532A  ARG*     4.3     4.8    -      -       -      +
   1533A  ARG*     2.9    29.6    +      -       -      +
    215t  ASP*     4.8     4.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO1530 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1255A  THR*     5.1    11.0    -      -       -      -
   1527A  ASN*     4.3    11.6    -      -       +      +
   1528A  GLN      3.5     0.4    -      -       -      -
   1529A  ILE*     1.4    76.1    -      -       -      +
   1531A  ASN*     1.3    58.1    +      -       -      +
   1533A  ARG*     4.3     4.0    -      -       +      +
   1534A  PHE*     2.9    33.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN1531 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1255A  THR*     4.8    14.5    -      -       -      -
   1256A  PHE*     5.8     2.9    -      -       +      +
   1527A  ASN      4.3     7.7    +      -       -      +
   1528A  GLN*     3.3    14.1    +      -       -      +
   1530A  PRO*     1.3    78.6    -      -       -      +
   1532A  ARG*     1.3    59.3    +      -       -      +
   1534A  PHE*     4.3     4.0    -      -       -      +
   1535A  THR*     3.6    19.2    +      -       -      -
   1568A  THR*     4.9     6.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1532 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1528A  GLN*     2.9    16.1    +      -       +      +
   1529A  ILE*     4.3     4.0    -      -       -      +
   1531A  ASN*     1.3    78.5    -      -       -      +
   1533A  ARG*     1.3    59.6    +      -       -      +
   1534A  PHE      3.3     0.4    -      -       -      -
   1535A  THR*     3.4     2.9    +      -       -      -
   1536A  LEU*     2.9    23.0    +      -       -      +
   1568A  THR*     4.7     8.7    -      -       -      +
   1571A  ILE*     5.7     1.8    -      -       +      -
   1572A  SER*     3.3    30.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1533 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1529A  ILE      2.9    18.8    +      -       -      +
   1530A  PRO*     4.3     4.0    -      -       +      +
   1532A  ARG*     1.3    73.9    -      -       -      +
   1534A  PHE*     1.3    60.6    +      -       -      +
   1536A  LEU*     3.3     5.8    +      -       -      +
   1537A  TRP*     2.9    27.7    +      -       -      +
   1750A  GLY      3.5    24.9    -      -       -      +
   1751A  LEU*     4.2    18.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1534 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1256A  PHE*     6.4     2.2    -      -       +      -
   1324A  GLY      6.0     2.0    -      -       -      +
   1530A  PRO      2.9    18.8    +      -       -      +
   1531A  ASN*     4.6     4.0    -      -       -      +
   1533A  ARG*     1.3    74.5    -      -       -      +
   1535A  THR*     1.3    64.7    +      -       -      +
   1537A  TRP*     3.2    16.0    +      -       -      +
   1538A  TRP*     3.5    13.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1535 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1531A  ASN      3.6    17.8    +      -       -      -
   1532A  ARG*     3.4     7.3    +      -       -      -
   1534A  PHE*     1.3    77.1    -      -       -      +
   1536A  LEU*     1.3    61.7    +      -       -      +
   1537A  TRP      3.5     0.2    +      -       -      -
   1538A  TRP*     3.8     8.6    +      -       -      +
   1539A  SER*     3.8    12.3    +      -       -      -
   1542A  ILE*     5.1     5.2    -      -       -      +
   1568A  THR*     4.8     6.7    -      -       -      -
   1569A  LEU*     4.7    28.6    -      -       -      +
   1572A  SER*     5.0     0.9    -      -       -      -
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Residues in contact with LEU1536 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1532A  ARG      2.9    18.3    +      -       -      +
   1533A  ARG*     3.5     9.9    -      -       -      +
   1534A  PHE      3.2     0.2    -      -       -      -
   1535A  THR*     1.3    79.4    -      -       -      +
   1537A  TRP*     1.3    60.4    +      -       -      +
   1539A  SER*     3.4    20.3    -      -       -      -
   1572A  SER*     4.1    21.0    -      -       -      +
   1750A  GLY      4.9     7.4    -      -       -      +
   1751A  LEU*     5.5     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP1537 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1487A  HIS*     3.3    27.7    -      -       -      +
   1488A  THR      4.7     1.6    +      -       -      -
   1533A  ARG      2.9    16.9    +      -       -      +
   1534A  PHE*     3.2    11.1    +      -       -      +
   1536A  LEU*     1.3    79.5    -      -       -      +
   1538A  TRP*     1.3    56.6    +      -       +      +
   1539A  SER      3.3     2.5    +      -       -      -
   1751A  LEU*     6.3     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP1538 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1315A  VAL*     5.6    11.4    -      -       +      -
   1486A  GLU*     5.6     3.4    -      -       +      -
   1487A  HIS*     5.2     5.2    -      -       -      +
   1534A  PHE      3.5    10.5    +      -       -      +
   1535A  THR*     3.8     4.7    +      -       -      +
   1536A  LEU      3.4     0.2    -      -       -      -
   1537A  TRP*     1.3    75.2    -      -       -      +
   1539A  SER*     1.3    56.8    +      -       -      +
   1540A  PRO      3.6     2.2    -      -       -      -
   1541A  THR*     3.3    13.1    +      -       -      +
   1542A  ILE*     3.0    31.6    +      -       +      +
----------------------------------------------------------
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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