Contacts of the helix formed by residues 1622 - 1637 (chain A) in PDB entry 3AU5


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 SER1622 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1619A  HIS*     3.1    32.8    +      -       -      +
   1620A  PRO      3.2     1.8    +      -       -      -
   1621A  GLY*     1.3    85.3    -      -       -      +
   1623A  VAL*     1.3    66.1    +      -       -      +
   1624A  GLY*     3.6     3.3    +      -       -      -
   1625A  ASN*     3.1    18.4    +      -       -      +
   1626A  LEU*     3.0    19.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1623 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1622A  SER*     1.3    74.0    -      -       -      +
   1624A  GLY*     1.3    58.4    +      -       -      +
   1626A  LEU*     3.1    16.6    +      -       +      +
   1627A  TYR*     2.9    62.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY1624 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1579A  LEU      5.6     1.8    -      -       -      -
   1622A  SER*     3.3     4.8    +      -       -      -
   1623A  VAL*     1.3    77.8    -      -       -      +
   1625A  ASN*     1.3    65.7    +      -       -      +
   1627A  TYR*     2.9    22.6    +      -       -      +
   1628A  SER*     3.1    15.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN1625 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1613A  GLN      4.4     1.6    +      -       -      -
   1614A  THR*     4.4     5.5    +      -       -      +
   1617A  VAL*     3.2    40.9    -      -       +      +
   1619A  HIS      3.8     8.5    -      -       -      +
   1620A  PRO*     4.0     2.1    -      -       -      +
   1621A  GLY*     3.2    12.2    +      -       -      -
   1622A  SER*     3.1    23.2    +      -       -      +
   1624A  GLY*     1.3    75.1    -      -       -      +
   1626A  LEU*     1.3    62.0    +      -       -      +
   1628A  SER*     3.4     6.8    +      -       -      -
   1629A  TRP*     3.2    41.9    +      -       -      +
   1665A  MET*     3.2    27.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1626 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1621A  GLY*     3.8    14.6    -      -       -      +
   1622A  SER      3.0    22.8    +      -       -      +
   1623A  VAL*     3.1    14.6    +      -       +      +
   1625A  ASN*     1.3    76.7    -      -       -      +
   1627A  TYR*     1.3    66.4    +      -       +      +
   1629A  TRP*     3.3     5.5    +      -       -      +
   1630A  GLN*     3.0    39.7    +      -       -      +
   1664A  GLU*     3.5    37.0    -      -       +      +
   1665A  MET*     4.6    13.2    -      -       +      -
   1668A  TYR*     4.3    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR1627 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1579A  LEU      3.9    26.0    -      -       -      -
   1582A  MET*     3.1    36.2    +      -       +      -
   1585A  PRO*     4.0    31.0    -      -       +      -
   1589A  ILE*     6.1     2.0    -      -       +      -
   1623A  VAL*     2.9    40.6    +      -       +      +
   1624A  GLY*     2.9    12.9    +      -       -      +
   1626A  LEU*     1.3    77.3    -      -       +      +
   1628A  SER*     1.3    66.3    +      -       -      +
   1630A  GLN*     3.1    21.9    +      -       -      +
   1631A  ILE*     2.8    37.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER1628 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1610A  LEU*     3.7    17.5    -      -       -      +
   1613A  GLN*     4.3    16.3    +      -       -      +
   1614A  THR*     3.6    22.9    -      -       -      -
   1624A  GLY      3.1    13.3    +      -       -      -
   1625A  ASN*     3.4    12.0    +      -       -      -
   1626A  LEU      3.2     0.2    -      -       -      -
   1627A  TYR*     1.3    77.1    -      -       -      +
   1629A  TRP*     1.3    61.5    +      -       -      +
   1631A  ILE*     3.2     9.1    +      -       -      +
   1632A  LEU*     3.0    22.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP1629 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1614A  THR*     3.6    34.3    +      -       +      +
   1625A  ASN*     3.2    31.3    +      -       -      +
   1626A  LEU*     3.8     5.8    -      -       -      +
   1627A  TYR      3.2     0.6    -      -       -      -
   1628A  SER*     1.3    79.2    -      -       -      +
   1630A  GLN*     1.3    56.3    +      -       -      +
   1632A  LEU*     3.5    27.4    +      -       +      +
   1633A  THR*     2.9    32.8    +      -       -      -
   1652A  HIS*     4.4     2.0    -      +       -      -
   1653A  LEU*     3.7    22.7    -      -       +      -
   1656A  ILE*     3.6    44.6    -      -       +      -
   1665A  MET*     3.4    37.2    -      -       +      +
   1668A  TYR*     3.7    35.7    -      -       +      +
   1669A  ALA*     3.9    11.2    -      -       +      -
   1672A  THR*     5.2     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN1630 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1585A  PRO*     5.0     1.0    -      -       -      +
   1589A  ILE*     4.6     7.7    -      -       +      +
   1626A  LEU*     3.0    29.4    +      -       -      +
   1627A  TYR*     3.4    32.5    -      -       -      +
   1629A  TRP*     1.3    74.6    -      -       -      +
   1631A  ILE*     1.3    66.8    +      -       -      +
   1633A  THR*     3.4     6.0    +      -       -      -
   1634A  CYS*     3.0    29.7    +      -       -      -
   1668A  TYR*     2.9    34.5    +      -       +      +
   1695A  ILE*     3.6    42.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE1631 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1576A  LEU*     5.5     6.1    -      -       +      -
   1588A  ILE*     6.2     0.9    -      -       +      -
   1589A  ILE*     4.0    32.8    -      -       +      -
   1592A  ILE*     4.2    40.8    -      -       +      -
   1610A  LEU*     4.1    26.5    -      -       +      -
   1627A  TYR*     2.8    29.5    +      -       +      +
   1628A  SER*     3.2    10.1    +      -       -      +
   1630A  GLN*     1.3    77.2    -      -       -      +
   1632A  LEU*     1.3    57.4    +      -       -      +
   1634A  CYS*     3.2     3.5    +      -       -      +
   1635A  LEU*     2.8    31.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1632 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1607A  TYR*     3.8    33.7    -      -       +      +
   1610A  LEU*     4.0    28.7    -      -       +      +
   1611A  ILE*     5.3     1.8    -      -       +      +
   1614A  THR*     4.8     8.3    -      -       +      +
   1628A  SER      3.0    15.0    +      -       -      +
   1629A  TRP*     3.6    37.7    -      -       +      +
   1631A  ILE*     1.3    75.3    -      -       -      +
   1633A  THR*     1.3    58.3    +      -       -      +
   1635A  LEU*     3.1     6.9    +      -       +      +
   1636A  SER*     2.8    30.8    +      -       -      -
   1649A  LEU*     4.2    20.2    -      -       +      -
   1652A  HIS*     5.4     1.1    -      -       +      -
   1653A  LEU*     4.5     2.2    -      -       +      -
   1672A  THR*     3.9    13.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1633 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1629A  TRP      2.9    18.1    +      -       -      -
   1630A  GLN*     3.6     6.1    -      -       -      -
   1631A  ILE      3.3     0.2    -      -       -      -
   1632A  LEU*     1.3    76.2    -      -       -      +
   1634A  CYS*     1.3    62.8    +      -       -      +
   1636A  SER*     2.8    18.6    +      -       -      +
   1637A  CYS*     3.4     9.2    +      -       -      -
   1668A  TYR*     3.4    24.2    +      -       +      +
   1671A  PHE*     3.6    33.4    -      -       +      -
   1672A  THR*     2.9    21.1    +      -       -      +
   1694A  LEU*     3.8    26.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS1634 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1589A  ILE*     4.0    17.5    -      -       +      -
   1593A  LEU*     4.0    22.4    -      -       +      -
   1630A  GLN      3.0    19.6    +      -       -      -
   1631A  ILE      3.6     5.8    -      -       -      +
   1633A  THR*     1.3    71.7    -      -       -      +
   1635A  LEU*     1.3    61.9    +      -       -      +
   1637A  CYS*     2.9    12.0    +      -       -      +
   1638A  THR*     2.7    25.0    +      -       -      -
   1686A  PRO*     4.7     0.7    -      -       +      +
   1691A  ILE*     4.0    20.6    -      -       +      -
   1694A  LEU*     3.9    33.2    -      -       +      -
   1695A  ILE*     4.9     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1635 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1592A  ILE*     4.4     9.6    -      -       +      -
   1593A  LEU*     3.2    27.8    -      -       +      -
   1606A  LEU*     4.2    18.8    -      -       +      -
   1607A  TYR*     3.1    38.6    +      -       +      +
   1610A  LEU*     3.8    25.6    -      -       +      -
   1631A  ILE*     2.8    22.9    +      -       +      +
   1632A  LEU*     3.3    10.3    -      -       +      +
   1634A  CYS*     1.3    75.4    -      -       -      +
   1636A  SER*     1.3    58.5    +      -       -      +
   1637A  CYS      2.8     6.4    +      -       -      -
   1638A  THR*     2.8    13.7    +      -       -      -
   1639A  PHE*     3.1    29.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER1636 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1607A  TYR*     3.3    12.0    +      -       -      -
   1632A  LEU      2.8    10.5    +      -       -      -
   1633A  THR      2.8    17.7    +      -       -      -
   1635A  LEU*     1.3    71.5    -      -       -      +
   1637A  CYS*     1.3    49.0    +      -       -      +
   1639A  PHE      4.4     1.6    -      -       -      +
   1672A  THR*     3.3    33.2    -      -       -      +
   1675A  SER*     3.3    21.0    +      -       -      +
   1676A  LEU*     3.3    26.2    -      -       -      +
   1679A  THR*     2.5    31.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS1637 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1633A  THR      3.8     9.9    -      -       -      +
   1634A  CYS      2.9     8.7    +      -       -      +
   1635A  LEU      2.9     1.4    -      -       -      -
   1636A  SER*     1.3    81.2    +      -       -      +
   1638A  THR*     1.3    59.0    +      -       -      +
   1671A  PHE*     4.3     2.2    -      -       -      -
   1675A  SER*     3.2    30.5    -      -       -      -
   1679A  THR*     3.4    11.4    +      -       -      +
   1682A  ARG*     3.7    23.9    +      -       -      +
   1686A  PRO*     4.6     1.5    -      -       +      +
   1690A  GLU*     4.9     1.1    -      -       -      +
   1694A  LEU*     4.0    21.3    -      -       +      -
   1718A  SER*     3.7    32.9    -      -       -      +
   1719A  HIS*     4.0     5.3    +      -       -      -
----------------------------------------------------------
 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