Contacts of the helix formed by residues 1532 - 1546 (chain A) in PDB entry 5A31


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 ASN1532 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1033A  ARG*     3.8     5.7    +      -       -      +
   1485A  PHE*     3.8    10.5    -      -       -      -
   1527A  MET*     3.4    30.7    -      -       -      +
   1530A  SER*     3.4     6.6    +      -       -      +
   1531A  GLY*     1.3    75.5    -      -       -      +
   1533A  LEU*     1.3    70.2    +      -       -      +
   1534A  LYS*     2.6    27.5    +      -       -      +
   1535A  VAL*     2.7    27.9    +      -       +      +
   1536A  LEU*     2.9    12.0    +      -       -      -
   1565A  LEU*     4.3     7.2    -      -       +      +
   1566A  PHE*     4.5     0.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1533 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1031A  ASP*     5.6    10.5    -      -       +      +
   1033A  ARG*     3.7    33.9    -      -       +      +
   1532A  ASN*     1.3    71.2    -      -       -      +
   1534A  LYS*     1.4    99.7    +      -       +      +
   1536A  LEU*     4.2    14.8    -      -       +      +
   1537A  GLN*     2.9    44.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1534 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1485A  PHE*     3.7    22.0    -      -       +      -
   1489A  HIS*     3.8    34.0    -      -       +      +
   1493A  LYS*     6.0     2.2    -      -       -      +
   1532A  ASN*     2.6    22.1    +      -       -      +
   1533A  LEU*     1.4   100.6    -      -       +      +
   1535A  VAL*     1.3    61.6    +      -       -      +
   1537A  GLN*     3.3    36.0    -      -       -      +
   1538A  LEU*     3.4     9.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1535 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1485A  PHE*     4.1     4.3    -      -       +      -
   1489A  HIS*     5.3     0.4    -      -       -      -
   1520A  LEU*     4.5     6.1    -      -       +      -
   1523A  LEU*     3.6    38.8    -      -       +      -
   1524A  ALA*     4.4     9.4    -      -       +      +
   1527A  MET*     3.7    24.2    -      -       +      -
   1532A  ASN*     2.7    17.9    +      -       +      +
   1534A  LYS*     1.3    70.5    -      -       -      +
   1536A  LEU*     1.3    58.3    +      -       -      +
   1538A  LEU*     3.1    12.5    -      -       -      +
   1539A  CYS*     2.9    31.7    +      -       -      -
   1565A  LEU*     3.6    30.5    -      -       +      -
----------------------------------------------------------
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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
----------------------------------------------------------
   1031A  ASP*     5.7     0.4    -      -       -      +
   1033A  ARG*     4.6    17.5    -      -       +      +
   1036A  ASP*     5.9     4.5    -      -       +      -
   1037A  VAL*     4.3     9.2    -      -       +      +
   1040A  LEU*     4.1    26.0    -      -       +      -
   1532A  ASN      2.9    13.0    +      -       -      +
   1533A  LEU*     4.1    13.9    -      -       +      +
   1535A  VAL*     1.3    75.7    -      -       -      +
   1537A  GLN*     1.3    61.6    +      -       -      +
   1539A  CYS*     3.1     4.5    +      -       -      +
   1540A  ARG*     2.8    45.0    +      -       +      +
   1562A  LEU*     4.3     4.7    -      -       +      -
   1565A  LEU*     3.7    13.2    -      -       +      +
   1566A  PHE*     3.8    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1537 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1489A  HIS*     5.8     0.8    -      -       -      -
   1533A  LEU*     2.9    37.4    +      -       -      +
   1534A  LYS*     3.3    40.2    +      -       -      +
   1536A  LEU*     1.3    77.8    -      -       -      +
   1538A  LEU*     1.3    63.3    +      -       +      +
   1540A  ARG*     3.2    17.8    +      -       -      +
   1541A  PHE*     3.0    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1538 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1489A  HIS*     4.3    17.0    -      -       +      -
   1492A  ALA*     3.8    29.2    -      -       +      -
   1493A  LYS*     5.5     1.3    -      -       +      +
   1496A  MET*     3.6    31.6    -      -       +      -
   1516A  LEU*     5.3     1.8    -      -       +      -
   1520A  LEU*     3.9    11.7    -      -       +      -
   1523A  LEU*     3.8    18.2    -      -       +      -
   1534A  LYS      3.6     6.5    -      -       -      +
   1535A  VAL*     3.1    13.6    +      -       -      +
   1537A  GLN*     1.3    86.1    -      -       +      +
   1539A  CYS*     1.3    57.4    +      -       -      +
   1541A  PHE*     3.5    16.3    -      -       +      +
   1542A  LEU*     3.5    18.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS1539 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1040A  LEU*     5.2     0.7    -      -       -      -
   1520A  LEU*     4.6     7.4    -      -       -      -
   1535A  VAL*     2.9    21.2    +      -       -      -
   1536A  LEU*     3.1     8.5    +      -       -      +
   1538A  LEU*     1.3    72.7    -      -       -      +
   1540A  ARG*     1.3    68.3    +      -       -      +
   1542A  LEU*     3.5     9.9    +      -       -      +
   1543A  HIS*     3.2    20.8    +      -       -      +
   1558A  HIS*     4.1     8.7    -      -       -      +
   1559A  HIS*     5.6     0.2    -      -       -      -
   1561A  ALA*     3.9    16.4    -      -       -      -
   1562A  LEU*     3.9    46.9    -      -       +      -
   1565A  LEU*     4.3    10.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1540 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036A  ASP*     4.5    26.7    +      -       -      +
   1040A  LEU*     4.3    28.8    -      -       +      +
   1536A  LEU*     2.8    29.3    +      -       +      +
   1537A  GLN*     3.6    18.8    -      -       -      +
   1539A  CYS*     1.3    75.9    -      -       -      +
   1541A  PHE*     1.3    65.2    +      -       -      +
   1543A  HIS*     2.8    21.3    +      -       -      +
   1544A  MET*     2.9    48.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1541 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1496A  MET*     3.4    44.6    -      -       +      -
   1537A  GLN      3.0    10.9    +      -       -      +
   1538A  LEU*     3.5    11.4    -      -       +      +
   1540A  ARG*     1.3    81.3    -      -       -      +
   1542A  LEU*     1.3    60.5    +      -       -      +
   1544A  MET*     3.5    13.9    +      -       +      +
   1545A  LYS*     3.4    32.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1542 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1496A  MET*     3.4    29.8    -      -       +      -
   1516A  LEU*     4.0    16.8    -      -       +      -
   1520A  LEU*     3.4    33.7    -      -       +      -
   1538A  LEU*     3.5    23.9    +      -       +      +
   1539A  CYS*     3.9     4.9    -      -       -      +
   1540A  ARG      3.1     0.6    -      -       -      -
   1541A  PHE*     1.3    71.5    -      -       -      +
   1543A  HIS*     1.3    67.9    +      -       -      +
   1544A  MET      3.1     2.0    -      -       -      -
   1545A  LYS*     3.1    36.7    +      -       +      +
   1546A  THR      3.8     3.3    +      -       -      -
   1550A  MET*     4.9     2.9    -      -       +      +
   1555A  HIS*     4.8     3.3    +      -       -      -
   1558A  HIS*     3.7    37.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS1543 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1039A  ARG      5.3     0.4    -      -       -      -
   1040A  LEU*     3.5    50.1    +      -       +      +
   1076A  ARG*     2.9    71.7    +      -       +      +
   1080A  LEU*     4.6     2.2    -      -       +      +
   1539A  CYS      3.2    11.3    +      -       -      +
   1540A  ARG*     2.8    12.0    +      -       -      +
   1542A  LEU*     1.3    79.4    -      -       -      +
   1544A  MET*     1.3    71.6    +      -       +      +
   1545A  LYS      3.5     0.5    +      -       -      -
   1546A  THR*     3.6     4.3    +      -       -      +
   1555A  HIS*     5.1     3.8    -      -       -      -
   1558A  HIS*     4.8     2.6    +      -       +      +
   1559A  HIS*     3.2    37.5    -      +       +      -
----------------------------------------------------------
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Residues in contact with MET1544 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1076A  ARG*     5.3     2.2    -      -       -      +
   1540A  ARG*     2.9    52.1    +      -       +      +
   1541A  PHE*     3.7    12.6    -      -       +      +
   1542A  LEU      3.1     0.4    -      -       -      -
   1543A  HIS*     1.3    86.0    -      -       +      +
   1545A  LYS*     1.3    64.6    +      -       -      +
   1546A  THR*     3.4     9.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1545 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1496A  MET*     4.1     4.6    -      -       +      +
   1499A  LEU*     3.5    27.9    -      -       -      +
   1513A  GLU*     4.3     0.4    +      -       -      -
   1541A  PHE*     3.4    35.2    +      -       +      +
   1542A  LEU*     3.1    30.9    +      -       +      +
   1544A  MET*     1.3    79.3    -      -       -      +
   1546A  THR*     1.3    74.0    +      -       -      +
   1547A  GLY*     3.2     2.9    +      -       -      -
   1550A  MET*     3.4    29.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR1546 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1069A  ARG*     3.1    25.3    +      -       -      +
   1072A  GLN      5.0     5.8    -      -       -      -
   1073A  LEU*     4.3    10.8    -      -       +      -
   1076A  ARG*     4.0    26.9    -      -       -      +
   1542A  LEU      3.8     5.5    +      -       -      -
   1543A  HIS      3.6    12.9    +      -       -      +
   1544A  MET*     3.4    15.5    -      -       -      +
   1545A  LYS*     1.3    80.8    +      -       -      +
   1547A  GLY*     1.3    81.0    +      -       -      -
   1548A  GLY      3.7     1.7    +      -       -      +
   1550A  MET*     3.3    20.1    -      -       -      +
   1555A  HIS*     3.6    23.4    +      -       -      -
----------------------------------------------------------
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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