Contacts of the strand formed by residues 241 - 248 (chain A) in PDB entry 3LMK


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 SER 241 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  THR      3.0    16.6    +      -       -      -
    213A  TYR*     3.4     9.7    -      -       -      -
    214A  VAL      3.2    23.7    +      -       -      +
    239A  GLY      4.0     3.0    +      -       -      -
    240A  ILE*     1.3    76.8    -      -       -      +
    242A  ILE*     1.3    64.6    +      -       -      +
    243A  ALA      3.9     0.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  VAL*     3.4    31.6    -      -       +      +
    216A  ALA*     3.8    17.7    -      -       +      -
    231A  PHE*     4.0    16.6    -      -       +      -
    232A  LYS*     4.7    16.6    -      -       +      +
    235A  SER*     4.0    21.3    -      -       -      +
    236A  ALA*     6.5     0.4    -      -       +      -
    240A  ILE*     4.1     5.8    +      -       +      +
    241A  SER*     1.3    76.7    -      -       -      +
    243A  ALA*     1.3    71.4    +      -       -      +
    244A  HIS*     3.8    23.7    -      -       -      +
    245A  SER*     4.3     5.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  TYR*     5.6     3.9    -      -       +      +
    214A  VAL      3.2    11.1    +      -       -      +
    215A  SER*     4.3    15.3    -      -       -      +
    241A  SER*     3.9     2.0    +      -       -      -
    242A  ILE*     1.3    74.6    -      -       -      +
    244A  HIS*     1.3    67.7    +      -       +      +
    267A  HIS*     4.9     9.0    -      -       +      +
    271A  ALA*     4.4    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  SER*     4.1     2.6    +      -       -      +
    216A  ALA      3.3    23.0    +      -       -      +
    242A  ILE*     3.4     6.9    -      -       -      +
    243A  ALA*     1.3    83.0    +      -       +      +
    245A  SER*     1.3    84.9    +      -       -      +
    246A  TYR*     3.7    42.3    +      +       +      +
    263A  LYS*     5.6     5.0    +      -       -      -
    267A  HIS*     5.8     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  ALA*     3.6    13.4    +      -       -      -
    218A  HIS*     4.5    11.3    +      -       -      -
    228A  MET*     4.7     2.9    -      -       -      +
    232A  LYS*     4.4    23.2    -      -       -      +
    242A  ILE*     4.3     4.2    -      -       -      +
    244A  HIS*     1.3    91.0    -      -       -      +
    246A  TYR*     1.3    67.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  SER*     5.0     2.7    -      -       -      -
    216A  ALA      2.8    19.9    +      -       -      +
    217A  VAL*     3.7     4.5    -      -       +      -
    218A  HIS*     3.3    28.6    +      -       -      -
    244A  HIS*     3.7    44.1    +      +       +      +
    245A  SER*     1.3    78.8    +      -       -      +
    247A  LYS*     1.3    68.5    +      -       -      +
    260A  LEU*     3.6    24.9    -      -       +      -
    263A  LYS*     3.5    62.5    +      -       +      +
    264A  LEU*     4.0    30.3    -      -       +      -
    266A  SER*     4.8     1.2    +      -       -      -
    267A  HIS*     4.8     5.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  VAL*     5.1     0.9    -      -       -      -
    218A  HIS*     3.1    37.2    -      -       +      +
    220A  GLU*     3.5    35.1    +      -       +      +
    225A  GLU*     6.0     3.1    -      -       +      +
    246A  TYR*     1.3    81.4    -      -       -      +
    248A  ILE*     1.3    66.2    +      -       -      +
    260A  LEU*     4.9     4.6    -      -       -      +
    229B  GLU*     5.1    13.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  VAL*     4.8     2.0    -      -       +      -
    218A  HIS      3.2     5.6    +      -       -      +
    219A  THR*     3.3     7.1    -      -       -      +
    220A  GLU*     2.7    33.1    +      -       -      +
    247A  LYS*     1.3    77.4    -      -       -      +
    249A  TYR*     1.3    69.4    +      -       -      +
    252A  ALA*     3.7    12.6    -      -       +      -
    256A  SER*     4.0     9.0    -      -       -      +
    257A  PHE*     3.6    53.2    -      -       +      +
    260A  LEU*     3.7    23.8    -      -       +      -
    282A  THR*     4.0    24.9    -      -       +      -
----------------------------------------------------------
 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