Contacts of the strand formed by residues 498 - 506 (chain B) in PDB entry 1L9N


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 VAL 498 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    492B  LEU*     3.9    12.1    -      -       +      -
    493B  ALA      6.1     0.2    -      -       -      +
    496B  LYS      4.7     0.2    -      -       -      +
    497B  GLU*     1.3    74.5    -      -       -      +
    499B  ASN*     1.3    63.9    +      -       -      +
    500B  LEU*     3.9    17.7    -      -       +      -
    552B  ILE      3.4     0.9    -      -       -      +
    553B  LYS*     3.3     7.4    -      -       -      +
    554B  ILE*     2.7    50.1    +      -       +      +
    559B  TYR*     3.9    20.9    -      -       +      -
    569B  ILE*     4.2     8.1    -      -       +      -
    589B  ILE*     3.7    23.6    -      -       +      -
    591B  LEU*     3.9    28.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 499 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    488B  VAL*     3.9     3.1    -      -       -      +
    489B  ALA*     2.7    56.3    +      -       +      +
    491B  MET      5.5     0.6    +      -       -      -
    492B  LEU*     4.4     4.4    -      -       -      +
    497B  GLU*     2.9    40.1    +      -       -      +
    498B  VAL*     1.3    73.9    -      -       -      +
    500B  LEU*     1.3    62.7    +      -       -      +
    552B  ILE      3.5     1.6    -      -       -      +
    553B  LYS*     2.6    37.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 500 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    486B  LEU*     5.2     5.6    -      -       +      -
    487B  LYS      3.2    15.5    -      -       -      +
    488B  VAL*     3.6    34.1    -      -       +      -
    489B  ALA*     4.1     1.1    -      -       -      +
    492B  LEU*     5.2     0.7    -      -       +      -
    498B  VAL*     3.9    19.3    -      -       +      -
    499B  ASN*     1.3    77.0    -      -       -      +
    501B  VAL*     1.3    73.3    +      -       -      +
    551B  PRO*     3.8     1.0    -      -       -      +
    552B  ILE*     2.9    44.5    +      -       +      +
    571B  ILE*     3.4    43.7    -      -       +      -
    587B  ARG*     5.3     4.0    -      -       +      -
    589B  ILE*     4.1    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 501 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485B  LYS      3.5     0.7    -      -       -      +
    486B  LEU*     3.6     4.1    -      -       -      -
    487B  LYS*     2.9    40.2    +      -       +      +
    489B  ALA*     4.4    15.7    -      -       +      -
    500B  LEU*     1.3    83.3    -      -       -      +
    502B  LEU*     1.3    68.1    +      -       -      +
    503B  LEU*     3.5     4.9    +      -       +      +
    549B  GLU*     3.7    42.4    -      -       +      +
    550B  HIS      3.7     8.5    -      -       -      +
    551B  PRO*     4.6     9.2    -      -       +      -
    552B  ILE*     5.1     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 502 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485B  LYS      3.6    13.5    -      -       -      +
    486B  LEU*     3.9    24.8    -      -       +      +
    501B  VAL*     1.3    71.6    -      -       -      +
    503B  LEU*     1.3    60.3    +      -       -      +
    504B  LEU*     3.7    32.2    +      -       +      +
    516B  VAL*     3.5    32.1    -      -       +      -
    518B  MET*     4.0     6.7    -      -       -      -
    549B  GLU*     3.4     4.7    -      -       -      -
    550B  HIS*     3.0    41.6    +      -       +      +
    552B  ILE*     4.7     5.7    -      -       +      +
    573B  ALA*     3.8    16.6    -      -       +      -
    575B  CYS*     4.3     1.1    -      -       -      -
    585B  VAL*     4.0    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 503 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483B  ILE*     3.9     0.6    -      -       +      +
    484B  GLY*     3.0     6.4    -      -       -      -
    485B  LYS*     2.7    54.0    +      -       +      +
    487B  LYS*     4.4    28.9    -      -       +      +
    501B  VAL*     3.5     5.5    +      -       +      +
    502B  LEU*     1.3    70.9    -      -       -      +
    504B  LEU*     1.3    78.2    +      -       -      +
    505B  LYS*     4.6     5.6    -      -       +      +
    547B  GLU*     4.3    20.4    -      -       +      +
    548B  ALA      3.7     6.7    -      -       -      +
    549B  GLU*     4.6    18.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 504 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482B  ILE*     4.1    10.1    -      -       +      -
    483B  ILE      3.5     3.6    -      -       -      +
    484B  GLY*     3.7    15.3    -      -       -      -
    502B  LEU*     3.9    23.3    -      -       +      +
    503B  LEU*     1.3    88.3    -      -       -      +
    505B  LYS*     1.3    62.8    +      -       -      +
    514B  VAL*     4.5     9.6    -      -       +      -
    516B  VAL*     3.7    17.3    -      -       +      -
    540B  MET*     3.3    36.1    -      -       +      -
    542B  LEU*     4.3    11.7    -      -       +      -
    547B  GLU*     3.3     4.5    -      -       -      -
    548B  ALA*     2.9    35.9    +      -       +      +
    575B  CYS*     3.9    18.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 505 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481B  SER      3.6     1.2    -      -       -      +
    482B  ILE*     3.5     9.0    -      -       -      +
    483B  ILE*     3.1    46.1    +      -       +      +
    503B  LEU*     4.8     4.7    -      -       +      -
    504B  LEU*     1.3    77.6    -      -       -      +
    506B  ASN*     1.3    65.1    +      -       -      +
    507B  LEU*     3.6    16.0    +      -       +      +
    542B  LEU*     4.6     0.7    -      -       -      -
    545B  GLU*     3.4    45.7    +      -       -      +
    546B  GLU      3.4    11.9    -      -       -      +
    547B  GLU*     3.4    30.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 506 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481B  SER*     3.3    14.8    -      -       -      -
    482B  ILE*     3.7    12.6    -      -       +      +
    505B  LYS*     1.3    72.5    -      -       -      +
    507B  LEU*     1.3    58.6    +      -       -      +
    508B  SER*     3.1    21.5    +      -       -      -
    510B  ASP      3.1    24.2    +      -       -      -
    512B  LYS*     3.7     8.3    -      -       -      +
    542B  LEU*     3.3    22.6    +      -       +      +
    543B  ASP      3.1    27.8    +      -       -      +
    544B  PRO*     3.6     4.8    -      -       -      +
    545B  GLU*     2.6    35.5    +      -       -      +
    546B  GLU      3.2     6.9    +      -       -      -
----------------------------------------------------------
 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