Contacts of the helix formed by residues 1545 - 1560 (chain A) in PDB entry 3SE2


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 ASP1545 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1541A  LEU*     4.4    15.2    -      -       +      +
   1542A  LEU*     2.9    24.1    +      -       +      +
   1544A  SER*     1.3    78.7    +      -       -      +
   1546A  PRO*     1.4    79.0    -      -       -      +
   1547A  GLU*     3.1    23.7    +      -       -      +
   1548A  TYR*     2.9    23.3    +      -       +      +
   1549A  ASN*     3.2     7.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO1546 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1544A  SER      3.5     8.5    -      -       -      +
   1545A  ASP*     1.4    89.5    -      -       -      +
   1547A  GLU*     1.3    56.4    +      -       -      +
   1549A  ASN*     3.2    14.2    +      -       +      +
   1550A  THR*     2.9    32.4    +      -       -      +
   1582D  LYS*     5.0     3.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1547 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1541A  LEU*     4.0    14.2    -      -       +      +
   1545A  ASP*     3.1    16.1    +      -       -      +
   1546A  PRO*     1.3    74.9    -      -       -      +
   1548A  TYR*     1.3    67.4    +      -       -      +
   1550A  THR*     3.4     6.5    +      -       -      -
   1551A  VAL*     3.1    29.8    +      -       +      +
   1569A  ARG*     2.6    36.7    +      -       -      -
   1714A  TYR*     2.5    34.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR1548 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1541A  LEU*     3.6    32.7    -      -       +      +
   1542A  LEU      3.2    22.0    -      -       -      +
   1543A  PRO*     3.7    17.5    -      -       +      -
   1545A  ASP*     2.9     7.3    +      -       +      +
   1547A  GLU*     1.3    80.8    -      -       -      +
   1549A  ASN*     1.3    73.3    +      -       -      +
   1551A  VAL      3.3     0.2    +      -       -      -
   1552A  ALA*     2.8    44.7    +      -       +      +
   1564A  ILE*     3.3    15.3    -      -       +      +
   1567A  ILE*     3.4    39.1    -      -       +      +
   1721A  GOL      4.3     7.0    -      -       -      -
   1618D  ARG*     2.5    50.3    +      -       +      +
   1707D  ASP*     5.4     1.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN1549 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1543A  PRO      3.6    13.5    +      -       -      +
   1544A  SER      4.8     3.0    +      -       -      -
   1545A  ASP      3.2    12.1    +      -       -      -
   1546A  PRO*     3.2    15.3    +      -       +      +
   1548A  TYR*     1.3    88.0    -      -       -      +
   1550A  THR*     1.3    56.3    +      -       -      +
   1553A  SER*     2.9    27.5    +      -       -      -
   1721A  GOL      3.0    35.8    +      -       -      +
   1582D  LYS*     5.3     4.8    -      -       -      +
   1676D  VAL*     4.5     0.4    -      -       -      +
   1706D  TYR*     3.5    35.5    -      -       +      +
   1707D  ASP      5.3     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1550 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1546A  PRO*     2.9    17.6    +      -       -      +
   1547A  GLU*     3.8     8.1    -      -       -      -
   1549A  ASN*     1.3    75.5    -      -       -      +
   1551A  VAL*     1.3    64.2    +      -       +      +
   1553A  SER*     2.4    26.2    +      -       -      +
   1554A  LYS*     3.1    32.4    +      -       +      +
   1659A  TYR*     6.4     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1551 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1541A  LEU*     4.8     0.2    -      -       +      -
   1547A  GLU*     3.1    18.2    +      -       +      +
   1548A  TYR      3.9     2.0    -      -       -      +
   1550A  THR*     1.3    77.6    -      -       +      +
   1552A  ALA*     1.3    63.0    +      -       -      +
   1554A  LYS*     3.0    18.8    +      -       -      +
   1555A  PHE*     3.2    12.5    +      -       -      +
   1567A  ILE*     4.0    25.6    -      -       +      -
   1600A  PHE*     5.5     0.2    -      -       -      -
   1659A  TYR*     4.1    16.8    -      -       +      -
   1714A  TYR*     3.7    52.9    -      -       +      +
   1716A  ILE*     4.1    13.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA1552 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1548A  TYR*     2.8    33.4    +      -       +      +
   1551A  VAL*     1.3    72.4    -      -       -      +
   1553A  SER*     1.3    56.5    +      -       -      +
   1555A  PHE*     3.5     4.1    +      -       -      +
   1556A  ASN*     2.9    33.8    +      -       -      +
   1564A  ILE*     3.8    19.7    -      -       +      -
   1567A  ILE*     3.5    17.1    -      -       +      +
   1721A  GOL      3.5    22.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER1553 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1549A  ASN      2.9    17.3    +      -       -      -
   1550A  THR*     2.4    28.9    +      -       -      +
   1552A  ALA*     1.3    77.6    -      -       -      +
   1554A  LYS*     1.3    69.5    +      -       -      +
   1556A  ASN      3.4     0.2    +      -       -      -
   1557A  GLN*     3.2    12.1    +      -       -      +
   1721A  GOL      3.3    10.3    -      -       -      -
   1675D  ILE*     3.1    22.3    -      -       -      +
   1676D  VAL*     3.2    33.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS1554 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1550A  THR*     3.1    32.3    +      -       +      +
   1551A  VAL      3.0     5.5    +      -       -      +
   1553A  SER*     1.3    79.8    +      -       -      +
   1555A  PHE*     1.3    66.9    +      -       -      +
   1557A  GLN*     3.6    15.9    +      -       -      +
   1558A  THR*     4.7     1.0    +      -       -      -
   1598A  GLN*     5.9     1.1    -      -       -      -
   1600A  PHE*     3.6    17.2    -      -       +      -
   1638A  ALA*     4.9     0.9    +      -       -      +
   1659A  TYR*     3.3    45.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE1555 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1551A  VAL      3.2     8.2    +      -       -      +
   1552A  ALA*     3.6     8.3    -      -       -      +
   1554A  LYS*     1.3    80.0    -      -       -      +
   1556A  ASN*     1.3    69.1    +      -       -      +
   1557A  GLN      3.1     1.4    +      -       -      -
   1558A  THR      3.4     2.9    +      -       -      -
   1559A  CYS*     3.0    63.3    +      -       +      +
   1562A  PHE*     4.3     7.2    -      +       +      -
   1564A  ILE*     4.1    22.0    -      -       +      -
   1600A  PHE*     3.7    11.0    -      +       +      -
   1638A  ALA*     3.7    19.1    -      -       +      +
   1657A  VAL*     4.3    12.3    -      -       +      -
   1716A  ILE*     3.8    28.7    -      -       +      -
   1718A  PHE*     3.8    46.2    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN1556 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1552A  ALA      2.9    18.6    +      -       -      +
   1553A  SER      3.8     1.1    -      -       -      +
   1554A  LYS      3.4     0.4    -      -       -      -
   1555A  PHE*     1.3    84.5    -      -       -      +
   1557A  GLN*     1.3    66.2    +      -       -      +
   1558A  THR*     3.0     4.5    +      -       -      -
   1559A  CYS      3.6     1.5    -      -       -      +
   1560A  SER*     3.4    34.1    +      -       -      +
   1562A  PHE      5.0     2.6    -      -       -      +
   1564A  ILE*     3.8    13.8    -      -       -      +
   1721A  GOL      2.9    35.8    +      -       -      +
   1630D  LYS*     5.2     0.2    -      -       -      -
   1675D  ILE*     3.4    33.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN1557 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1553A  SER      3.2     9.1    +      -       -      +
   1554A  LYS*     3.6    15.7    -      -       -      +
   1555A  PHE      3.1     1.4    -      -       -      -
   1556A  ASN*     1.3    76.0    -      -       -      +
   1558A  THR*     1.3    68.2    +      -       +      +
   1637A  ASN*     5.7     2.5    -      -       -      +
   1630D  LYS*     4.9    10.6    -      -       -      -
   1673D  SER*     3.1    34.5    +      -       -      +
   1674D  LEU*     5.6     0.2    -      -       -      -
   1675D  ILE*     3.6    22.0    +      -       -      +
   1676D  VAL*     5.8     0.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1558 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1554A  LYS      4.7     1.1    +      -       -      -
   1555A  PHE      3.4     1.5    +      -       -      -
   1557A  GLN*     1.3    91.3    -      -       +      +
   1559A  CYS*     1.3    57.8    +      -       -      +
   1560A  SER*     3.7     2.2    -      -       -      -
   1561A  HIS*     3.3    16.7    +      -       -      -
   1637A  ASN*     3.8    28.2    -      -       +      +
   1638A  ALA*     3.1    28.8    +      -       -      +
   1639A  ASN*     3.2    27.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS1559 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1555A  PHE*     3.0    38.4    +      -       +      +
   1556A  ASN*     3.9     5.3    -      -       -      +
   1558A  THR*     1.3    76.5    -      -       -      +
   1560A  SER*     1.3    61.8    +      -       -      +
   1561A  HIS*     3.1     9.2    -      -       -      -
   1562A  PHE*     3.1    25.6    +      -       +      +
   1638A  ALA*     3.5    15.5    -      -       -      -
   1639A  ASN*     3.3    39.3    -      -       -      -
   1642A  ALA*     3.9    14.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER1560 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1556A  ASN*     3.4    32.1    +      -       -      -
   1558A  THR      3.7     1.7    -      -       -      -
   1559A  CYS*     1.3    76.4    -      -       -      +
   1561A  HIS*     1.3    63.4    +      -       -      +
   1562A  PHE      3.2     8.9    -      -       -      +
   1563A  ARG*     6.0     0.2    -      -       -      -
   1630D  LYS*     3.2    28.8    -      -       -      +
   1675D  ILE*     3.8    13.7    -      -       -      -
----------------------------------------------------------
 Back to top of page


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