Contacts of the helix formed by residues 9 - 23 (chain 3) in PDB entry 1LMB


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 GLN 9 (chain 3).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      83  THR*     1.3    74.4    -      -       -      +
     103  GLU*     1.3    62.7    +      -       -      +
     123  LEU*     3.2    16.6    +      -       -      +
     133  GLU*     3.0    47.1    +      -       -      +
     163  ARG*     3.9    18.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 10 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      83  THR*     3.2     7.4    +      -       -      +
      93  GLN*     1.3    77.1    -      -       -      +
     113  GLN*     1.4    57.8    +      -       -      +
     133  GLU*     3.1    18.9    +      -       -      +
     143  ASP*     2.9    42.3    +      -       -      +
     173  ARG*     5.1     3.8    +      -       -      +
     783  PRO*     5.4     5.0    -      -       -      +
     793  SER*     3.8    29.3    +      -       -      +
     823  ARG*     4.9     4.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 11 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      73  LEU*     3.4    28.4    -      -       +      +
      83  THR*     3.0    43.9    +      -       -      +
     103  GLU*     1.4    74.2    -      -       -      +
     123  LEU*     1.3    64.3    +      -       -      +
     143  ASP*     3.4    13.8    +      -       -      +
     153  ALA*     3.1    21.8    +      -       -      +
     563  ALA*     3.4    27.2    -      -       +      +
     573  LEU      5.0     4.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 12 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      63  PRO*     5.8     3.4    -      -       +      -
      73  LEU*     3.8    25.6    -      -       +      +
      83  THR      2.9    17.7    +      -       -      +
      93  GLN*     3.2    20.2    +      -       -      +
     113  GLN*     1.3    78.5    -      -       -      +
     133  GLU*     1.3    56.1    -      -       -      +
     153  ALA*     3.3     4.6    +      -       -      +
     163  ARG*     2.9    50.5    +      -       -      +
     523  ASN      5.3     0.4    -      -       -      +
     533  GLY*     3.5    33.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 13 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      93  GLN*     3.0    39.4    +      -       -      +
     103  GLU*     3.4    21.1    -      -       -      +
     123  LEU*     1.3    71.5    -      -       -      +
     143  ASP*     1.3    57.2    +      -       -      +
     163  ARG*     3.0    29.8    +      -       -      +
     173  ARG*     2.8    58.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 14 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     103  GLU*     2.9    22.0    +      -       -      +
     113  GLN*     3.5    16.7    -      -       -      +
     133  GLU*     1.3    77.1    -      -       -      +
     153  ALA*     1.4    55.8    +      -       -      +
     173  ARG*     2.8    30.1    +      -       -      +
     183  LEU*     2.9    30.0    +      -       -      +
     573  LEU*     4.5    11.4    -      -       +      +
     763  PHE*     3.3    15.5    -      -       -      +
     773  SER*     2.8    35.1    +      -       -      -
     783  PRO*     4.3     1.7    -      -       -      +
     793  SER*     3.6    11.1    +      -       -      -
     803  ILE*     4.7     5.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 15 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      73  LEU*     5.9     0.9    -      -       +      -
     113  GLN      3.1    13.1    +      -       -      +
     123  LEU      3.6     7.4    -      -       -      +
     133  GLU      3.2     0.2    -      -       -      -
     143  ASP*     1.4    74.8    -      -       -      +
     163  ARG*     1.3    62.7    +      -       +      +
     183  LEU*     3.5     7.9    +      -       -      +
     193  LYS*     3.0    19.8    +      -       -      +
     503  LEU      3.6    23.1    -      -       -      +
     513  PHE      3.4    12.1    -      -       -      +
     523  ASN      4.6     0.2    -      -       -      -
     533  GLY*     3.6    24.9    -      -       -      +
     573  LEU*     5.1     4.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 16 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      93  GLN*     3.9    16.2    +      -       -      -
     123  LEU*     2.9    42.0    +      -       +      +
     133  GLU*     3.0    40.2    +      -       -      +
     153  ALA*     1.3    78.5    -      -       +      +
     173  ARG*     1.4    61.1    +      -       +      +
     193  LYS*     4.1     3.3    -      -       -      +
     203  ALA*     3.1    24.4    +      -       -      +
     513  PHE      5.3     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 17 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     103  GLU*     4.6     5.1    +      -       -      +
     133  GLU*     2.8    33.7    +      -       -      +
     143  ASP*     2.8    38.3    +      -       -      +
     163  ARG*     1.4    75.1    -      -       +      +
     183  LEU*     1.3    62.2    +      -       -      +
     203  ALA*     3.3     7.1    +      -       -      +
     213  ILE*     3.1    27.4    +      -       +      +
     753  GLU      3.9    15.5    -      -       -      +
     763  PHE*     2.8    29.2    +      -       -      -
     783  PRO*     4.1    15.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 18 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     143  ASP      2.9    17.0    +      -       -      +
     153  ALA*     3.7     4.0    -      -       -      +
     163  ARG      3.4     0.2    -      -       -      -
     173  ARG*     1.3    75.6    -      -       -      +
     193  LYS*     1.3    62.6    +      -       -      +
     213  ILE*     3.2     7.7    +      -       -      +
     223  TYR*     3.1    18.9    +      -       -      +
     503  LEU      4.6     9.0    -      -       -      +
     513  PHE*     3.7    28.7    -      -       +      -
     573  LEU*     3.9    21.1    -      -       +      -
     653  LEU*     3.8    23.8    -      -       +      -
     693  LEU*     3.6    25.8    -      -       +      -
     763  PHE*     3.5    35.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 19 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      31    T      6.1     0.2    -      -       -      -
      41    A      2.9    28.8    +      -       -      -
     153  ALA      3.0    11.8    +      -       -      +
     163  ARG*     4.2     3.8    -      -       -      +
     183  LEU*     1.3    77.6    -      -       -      +
     203  ALA*     1.3    53.0    +      -       -      +
     223  TYR*     3.3     7.3    +      -       +      +
     233  GLU*     2.8    57.2    +      -       +      +
     333  GLN*     4.9     4.0    -      -       -      +
     513  PHE*     3.6    36.1    -      -       +      +
     523  ASN*     2.6    31.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 20 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     163  ARG      3.1    18.4    +      -       -      +
     173  ARG*     3.5     7.9    -      -       -      +
     183  LEU      3.2     0.2    -      -       -      -
     193  LYS*     1.3    76.0    -      -       -      +
     213  ILE*     1.3    64.6    +      -       +      +
     233  GLU*     3.3     7.4    +      -       -      +
     243  LYS*     3.0    25.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 21 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     173  ARG*     3.1    19.3    +      -       +      +
     183  LEU*     3.5     6.7    -      -       -      +
     193  LYS      3.2     0.2    -      -       -      -
     203  ALA*     1.3    74.7    -      -       +      +
     223  TYR*     1.3    66.3    +      -       -      +
     243  LYS*     3.1    14.7    +      -       -      +
     253  LYS*     2.9    43.8    +      -       +      +
     693  LEU*     4.2    16.6    -      -       +      -
     713  VAL*     4.0    18.6    -      -       +      -
     753  GLU*     4.0    32.8    -      -       +      +
     763  PHE*     4.1    22.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 22 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      31    T      2.7    29.5    +      -       -      -
     183  LEU      3.1    12.6    +      -       -      +
     193  LYS*     3.5     9.2    -      -       +      +
     213  ILE*     1.3    76.1    -      -       -      +
     233  GLU*     1.3    80.1    +      -       -      +
     253  LYS      4.6     0.2    -      -       -      +
     263  LYS*     2.9    52.7    +      -       +      +
     313  LEU*     4.1    12.1    -      -       +      -
     323  SER*     3.1    19.4    -      -       -      -
     333  GLN*     3.0    26.8    +      -       +      -
     363  VAL*     4.0    14.6    -      -       +      -
     513  PHE*     3.6    41.7    -      +       +      -
     693  LEU*     3.9    21.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 23 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      31    T      4.9     6.1    +      -       -      +
      41    A      5.6     0.2    +      -       -      -
     193  LYS*     2.8    46.5    +      -       +      +
     203  ALA*     3.9     7.0    -      -       -      +
     213  ILE      3.2     0.4    -      -       -      -
     223  TYR*     1.3    95.6    -      -       -      +
     243  LYS*     1.3    62.0    +      -       -      +
     263  LYS*     3.7    30.7    +      -       -      +
     333  GLN*     5.3     1.7    +      -       -      -
----------------------------------------------------------
 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