Contacts of the helix formed by residues 1401 - 1411 (chain B) in PDB entry 5XA0


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 PRO1401 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1388B  LYS*     5.3    13.7    -      -       +      -
   1398B  SER*     5.4     6.1    -      -       -      -
   1400B  LEU*     1.3    74.9    -      -       -      +
   1402B  LEU*     1.3    61.6    +      -       -      +
   1403B  ASP      3.4     2.6    +      -       -      -
   1404B  ASP*     4.0    11.7    +      -       +      +
   1405B  ILE*     4.1    11.4    +      -       -      +
   1441B  TYR*     4.8    13.9    -      -       +      -
   1442B  THR*     2.8    12.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1402 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1401B  PRO*     1.3    77.8    -      -       -      +
   1403B  ASP*     1.3    62.5    +      -       -      +
   1405B  ILE*     3.6     6.0    +      -       -      +
   1406B  VAL*     3.3    21.5    +      -       -      +
   1441B  TYR      4.9     1.7    +      -       -      +
   1442B  THR*     3.7     6.8    -      -       -      -
   1444B  ASN      4.2     6.3    -      -       -      +
   1445B  HIS*     3.7    33.7    -      -       +      -
   1446B  MET      5.4     0.7    -      -       -      +
   1448B  LYS*     5.6     6.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP1403 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1400B  LEU*     5.7     4.0    -      -       +      +
   1401B  PRO      3.4     1.0    -      -       -      -
   1402B  LEU*     1.3    77.5    -      -       -      +
   1404B  ASP*     1.3    59.9    +      -       -      +
   1406B  VAL*     3.2     6.8    +      -       -      +
   1407B  ARG*     2.9    31.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP1404 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1366B  ASP*     6.3     2.9    -      -       +      -
   1401B  PRO*     4.0     7.9    +      -       +      +
   1402B  LEU      3.5     0.4    -      -       -      -
   1403B  ASP*     1.3    79.4    -      -       -      +
   1405B  ILE*     1.3    57.8    +      -       -      +
   1407B  ARG*     4.0     4.6    -      -       -      +
   1408B  VAL*     2.9    31.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE1405 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1401B  PRO      4.1     9.2    +      -       -      +
   1402B  LEU*     3.6     8.4    +      -       -      +
   1403B  ASP      3.2     0.4    -      -       -      -
   1404B  ASP*     1.3    78.3    -      -       -      +
   1406B  VAL*     1.4    59.8    +      -       -      +
   1408B  VAL*     3.9     3.4    -      -       -      -
   1409B  VAL*     2.8    32.1    +      -       -      +
   1427B  ASN*     5.2    14.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1406 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1402B  LEU      3.3    15.0    +      -       -      +
   1403B  ASP*     3.2     8.5    +      -       -      +
   1405B  ILE*     1.4    76.7    -      -       -      +
   1407B  ARG*     1.3    57.6    +      -       -      +
   1409B  VAL*     3.9     4.8    -      -       -      +
   1410B  THR*     3.1    30.5    +      -       -      -
   1447B  TRP*     5.3    17.7    -      -       +      +
   1448B  LYS*     5.8     2.7    -      -       -      +
   1451B  GLU*     5.8     7.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG1407 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1403B  ASP      2.9    16.8    +      -       -      +
   1404B  ASP*     4.0     5.8    -      -       -      +
   1406B  VAL*     1.3    74.8    -      -       -      +
   1408B  VAL*     1.3    59.9    +      -       -      +
   1409B  VAL      3.2     0.4    -      -       -      -
   1410B  THR*     5.6     0.7    -      -       -      -
   1411B  HIS*     2.8    37.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1408 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1366B  ASP*     5.0    11.7    -      -       +      +
   1404B  ASP      2.9    19.6    +      -       -      +
   1405B  ILE*     4.5     3.8    -      -       -      +
   1407B  ARG*     1.3    75.8    -      -       -      +
   1409B  VAL*     1.4    58.6    +      -       -      +
   1410B  THR      3.7     0.2    -      -       -      -
   1411B  HIS*     4.1    13.9    -      -       -      +
   1412B  GLU*     5.9     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1409 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1405B  ILE      2.8    21.8    +      -       -      +
   1406B  VAL*     3.9     6.5    -      -       -      +
   1407B  ARG      3.2     0.2    -      -       -      -
   1408B  VAL*     1.4    78.6    -      -       -      +
   1410B  THR*     1.3    58.6    +      -       -      +
   1411B  HIS      3.6     0.2    -      -       -      -
   1420B  ILE*     4.2    19.2    -      -       -      +
   1424B  ASN*     4.6    21.0    -      -       +      +
   1427B  ASN*     5.9     5.8    -      -       +      -
   1451B  GLU*     6.4     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1410 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1406B  VAL      3.1    16.6    +      -       -      -
   1407B  ARG*     4.1     0.9    -      -       -      -
   1409B  VAL*     1.3    74.3    -      -       -      +
   1411B  HIS*     1.4    57.5    +      -       -      +
   1412B  GLU*     4.1     2.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS1411 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1368B  ASN      4.0    14.1    -      -       -      +
   1369B  SER*     4.8     3.1    -      -       -      -
   1407B  ARG*     2.8    23.0    +      -       +      +
   1408B  VAL*     4.1    13.1    -      -       -      +
   1409B  VAL      3.6     2.8    -      -       -      -
   1410B  THR*     1.4    74.9    -      -       -      +
   1412B  GLU*     1.3    59.9    +      -       -      +
----------------------------------------------------------
 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