Contacts of the helix formed by residues 1494 - 1514 (chain A) in PDB entry 6XAF


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 SER1494 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1488A  VAL*     5.3     0.9    -      -       -      +
   1489A  ASN*     5.0    10.6    +      -       -      -
   1492A  GLU*     3.7     6.1    +      -       -      -
   1493A  GLU*     1.3    86.7    -      -       -      +
   1495A  ASP*     1.3    61.8    +      -       -      +
   1496A  ALA*     3.3     9.9    +      -       -      +
   1497A  LEU*     3.0    23.4    +      -       -      +
   1498A  ALA*     2.9    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1495 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1494A  SER*     1.3    75.3    -      -       -      +
   1496A  ALA*     1.3    58.1    +      -       -      +
   1498A  ALA*     3.2     8.5    +      -       -      +
   1499A  LYS*     2.9    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1496 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1454A  LEU*     5.7     3.8    -      -       +      -
   1486A  HIS*     4.6     5.2    -      -       +      -
   1487A  PHE      3.9    22.0    -      -       -      +
   1488A  VAL*     4.0     8.7    -      -       +      +
   1494A  SER*     3.2     9.0    +      -       -      +
   1495A  ASP*     1.3    78.5    -      -       -      +
   1497A  LEU*     1.3    61.6    +      -       -      +
   1499A  LYS*     3.3     7.7    +      -       -      +
   1500A  LEU*     3.0    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1497 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1350A  LEU*     3.7    29.6    -      -       +      -
   1353A  GLN*     3.5    32.8    -      -       +      +
   1354A  LEU*     4.2     9.1    -      -       +      +
   1488A  VAL*     4.0    15.3    -      -       +      +
   1489A  ASN      4.4    12.8    -      -       -      +
   1490A  ALA*     4.5     1.3    -      -       -      -
   1492A  GLU      4.3     3.8    -      -       -      +
   1493A  GLU*     3.3    24.9    -      -       -      +
   1494A  SER*     3.0    22.9    +      -       -      +
   1496A  ALA*     1.3    77.1    -      -       -      +
   1498A  ALA*     1.3    57.6    +      -       -      +
   1500A  LEU*     3.2     5.0    +      -       +      +
   1501A  ARG*     2.9    44.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1498 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1493A  GLU*     3.7    10.4    +      -       -      +
   1494A  SER      2.9    14.0    +      -       -      +
   1495A  ASP*     3.5    12.6    -      -       -      +
   1497A  LEU*     1.3    76.4    -      -       -      +
   1499A  LYS*     1.3    57.0    +      -       -      +
   1501A  ARG*     3.2    19.8    +      -       -      +
   1502A  LYS*     3.0    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1499 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1484A  ASP*     4.4     9.9    +      -       -      -
   1486A  HIS*     4.1    12.6    +      -       +      +
   1495A  ASP      2.9    16.3    +      -       -      +
   1496A  ALA*     3.7     7.4    -      -       -      +
   1497A  LEU      3.2     0.2    -      -       -      -
   1498A  ALA*     1.3    73.2    -      -       -      +
   1500A  LEU*     1.3    61.5    +      -       -      +
   1502A  LYS*     3.4    10.2    +      -       +      +
   1503A  THR*     2.9    57.5    +      -       -      +
   1506A  ASN*     6.0     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1500 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1350A  LEU*     3.8    31.0    -      -       +      -
   1354A  LEU*     4.2     9.9    -      -       +      -
   1416A  LEU*     4.7     0.2    -      -       +      -
   1448A  ILE*     4.0    15.0    -      -       +      -
   1450A  VAL*     3.9    26.2    -      -       +      -
   1486A  HIS*     3.8    34.0    +      -       +      +
   1488A  VAL*     4.6     8.1    -      -       +      -
   1496A  ALA      3.0    13.9    +      -       -      +
   1497A  LEU*     3.2     9.4    +      -       +      +
   1499A  LYS*     1.3    75.5    -      -       -      +
   1501A  ARG*     1.3    58.1    +      -       -      +
   1503A  THR*     3.2     1.5    +      -       -      -
   1504A  ILE*     2.9    48.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1501 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1353A  GLN      3.0    23.4    +      -       -      -
   1354A  LEU*     2.9    29.4    +      -       +      +
   1356A  LYS*     3.7    28.3    -      -       -      +
   1493A  GLU*     3.0    40.8    +      -       -      -
   1497A  LEU*     2.9    21.2    +      -       -      +
   1498A  ALA*     3.4    29.1    -      -       -      +
   1500A  LEU*     1.3    77.8    -      -       -      +
   1502A  LYS*     1.3    61.8    +      -       -      +
   1504A  ILE*     3.3     6.0    +      -       -      +
   1505A  ILE*     3.1    39.4    +      -       +      +
   1376B  TRP*     4.1    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1502 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1498A  ALA      3.0    15.6    +      -       -      +
   1499A  LYS*     3.8    14.8    -      -       +      +
   1501A  ARG*     1.3    76.1    -      -       -      +
   1503A  THR*     1.3    57.8    +      -       -      +
   1505A  ILE*     3.2     8.2    +      -       -      +
   1506A  ASN*     2.8    45.9    +      -       -      +
   1381B  ARG*     4.9    13.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR1503 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1448A  ILE*     3.9    18.2    -      -       +      -
   1484A  ASP*     3.7    24.9    +      -       +      +
   1486A  HIS*     3.5    20.6    +      -       +      -
   1499A  LYS*     2.9    35.7    +      -       -      +
   1500A  LEU      3.5     4.9    -      -       -      -
   1502A  LYS*     1.3    76.8    -      -       -      +
   1504A  ILE*     1.3    57.1    +      -       -      +
   1506A  ASN*     3.9     6.1    -      -       -      +
   1507A  GLU*     2.9    39.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1504 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1337A  LEU*     4.0    28.5    -      -       +      -
   1354A  LEU*     3.6    24.0    -      -       +      -
   1414A  LEU*     3.8     2.3    -      -       +      +
   1416A  LEU*     3.6    39.0    -      -       +      -
   1448A  ILE*     4.0    10.8    -      -       +      -
   1500A  LEU*     2.9    36.2    +      -       +      +
   1501A  ARG*     3.7     4.9    -      -       -      +
   1502A  LYS      3.3     0.2    -      -       -      -
   1503A  THR*     1.3    75.7    -      -       -      +
   1505A  ILE*     1.3    58.7    +      -       +      +
   1508A  SER*     2.7    34.8    +      -       -      +
   1376B  TRP*     4.2     8.7    -      -       +      -
   1390B  LEU*     4.1    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE1505 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1501A  ARG*     3.1    40.1    +      -       +      +
   1502A  LYS*     3.7     7.0    -      -       -      +
   1504A  ILE*     1.3    77.9    -      -       +      +
   1506A  ASN*     1.3    74.2    +      -       -      +
   1508A  SER*     3.3     5.8    +      -       -      -
   1509A  LEU*     3.1    28.9    +      -       +      +
   1376B  TRP*     5.3     1.1    -      -       +      -
   1378B  ILE*     3.5    43.1    -      -       +      -
   1379B  GLN      5.2     2.0    -      -       -      +
   1380B  ILE*     3.8    27.4    -      -       +      -
   1381B  ARG*     5.4     4.3    -      -       -      +
   1387B  ASP*     5.4     2.2    -      -       -      +
   1390B  LEU*     5.6     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN1506 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1499A  LYS*     6.0     2.0    -      -       -      +
   1502A  LYS*     2.8    31.3    +      -       -      +
   1503A  THR*     4.0     5.9    -      -       -      +
   1505A  ILE*     1.3    79.0    -      -       -      +
   1507A  GLU*     1.3    59.4    +      -       -      +
   1509A  LEU*     3.4    10.1    +      -       -      +
   1510A  ASN*     2.9    43.9    +      -       -      +
   1381B  ARG*     3.3    27.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1507 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1414A  LEU*     4.3    22.9    -      -       +      -
   1446A  PRO*     4.8     6.9    -      -       +      +
   1448A  ILE*     4.5     7.5    -      -       +      +
   1483A  ARG*     3.4    50.8    -      -       +      +
   1484A  ASP*     5.3     0.2    -      -       -      +
   1503A  THR*     2.9    26.3    +      -       -      +
   1506A  ASN*     1.3    75.2    -      -       -      +
   1508A  SER*     1.3    59.8    +      -       -      +
   1510A  ASN*     3.6    21.6    +      -       -      +
   1511A  PHE*     2.8    32.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER1508 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1335A  MET*     5.3     4.7    -      -       -      -
   1414A  LEU*     3.3    20.0    -      -       -      +
   1504A  ILE      2.7    23.8    +      -       -      -
   1505A  ILE*     3.6     6.3    -      -       -      -
   1507A  GLU*     1.3    77.6    -      -       -      +
   1509A  LEU*     1.3    63.2    +      -       -      +
   1511A  PHE*     3.5     6.7    +      -       -      +
   1512A  LYS*     3.4    21.5    +      -       -      +
   1387B  ASP*     5.9     2.7    -      -       -      -
   1390B  LEU*     3.6    32.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1509 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1505A  ILE*     3.1    26.4    +      -       +      +
   1506A  ASN*     3.7     9.9    -      -       -      +
   1508A  SER*     1.3    78.7    -      -       -      +
   1510A  ASN*     1.3    66.1    +      -       -      +
   1512A  LYS*     3.6    11.1    +      -       +      +
   1513A  ILE*     3.2    29.5    +      -       +      +
   1380B  ILE*     4.2    28.5    -      -       +      -
   1385B  LYS*     5.7     8.1    -      -       +      +
   1387B  ASP*     3.6    33.7    -      -       +      +
   1388B  LEU*     6.3     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN1510 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1506A  ASN*     2.9    33.3    +      -       -      +
   1507A  GLU*     3.6    20.9    +      -       -      +
   1509A  LEU*     1.3    77.4    -      -       -      +
   1511A  PHE*     1.3    61.6    +      -       -      +
   1513A  ILE*     3.1    16.8    +      -       -      +
   1514A  ARG*     2.9    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1511 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1335A  MET*     5.8     7.2    -      -       +      -
   1411A  GLN      3.2    26.5    -      -       -      -
   1412A  ARG*     3.9    18.4    -      -       +      -
   1413A  ALA      4.1    12.1    -      -       -      -
   1414A  LEU*     5.7     3.1    -      -       +      -
   1444A  SER*     3.9    19.5    -      -       -      -
   1445A  SER*     4.5     0.7    -      -       -      -
   1446A  PRO*     3.5    38.1    -      -       +      -
   1507A  GLU*     2.8    24.0    +      -       +      +
   1508A  SER*     3.8     7.6    -      -       -      +
   1509A  LEU      3.4     0.2    -      -       -      -
   1510A  ASN*     1.3    73.3    -      -       -      +
   1512A  LYS*     1.3    66.5    +      -       +      +
   1514A  ARG*     3.2    22.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1512 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1508A  SER      3.4    10.2    +      -       -      +
   1509A  LEU*     3.7    14.4    -      -       +      +
   1510A  ASN      3.3     0.6    -      -       -      -
   1511A  PHE*     1.3    84.3    -      -       +      +
   1513A  ILE*     1.3    62.1    +      -       +      +
   1514A  ARG      4.2     2.1    -      -       -      +
   1388B  LEU*     3.6    30.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1513 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1509A  LEU*     3.2    24.5    -      -       +      +
   1510A  ASN*     3.1    19.5    +      -       -      +
   1512A  LYS*     1.3    79.9    -      -       +      +
   1514A  ARG*     1.3    68.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1514 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1510A  ASN      2.9    15.5    +      -       -      +
   1511A  PHE*     3.2    18.7    -      -       +      +
   1512A  LYS      4.2     2.6    -      -       -      +
   1513A  ILE*     1.3    83.6    -      -       -      +
----------------------------------------------------------
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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