Contacts of the strand formed by residues 184 - 193 (chain A) in PDB entry 1LCY


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 184 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  PHE*     3.9    22.2    -      -       +      -
    110A  LEU*     3.7    35.9    -      -       +      -
    111A  PRO      2.8    19.8    +      -       -      +
    112A  LEU*     3.5    12.8    -      -       +      -
    113A  GLY      2.7    23.7    +      -       -      -
    176A  PRO*     3.8    15.9    -      -       +      -
    177A  LEU      3.7     3.8    -      -       -      +
    178A  VAL*     4.5     2.7    -      -       +      +
    183A  GLU*     1.3    72.3    -      -       -      +
    185A  ILE*     1.3    57.3    +      -       -      +
    186A  GLY      3.3    29.6    -      -       -      +
    202A  SER*     3.2    11.6    -      -       -      -
    205A  LEU*     5.0     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  GLY*     4.4    14.4    -      -       -      -
    114A  ARG      4.7     2.5    -      -       -      +
    115A  SER*     3.7     1.7    -      -       -      -
    118A  VAL*     3.7    29.6    -      -       +      -
    124A  VAL*     4.3    12.8    -      -       +      -
    142A  VAL*     5.1     1.3    -      -       +      -
    162A  ILE*     2.8    41.0    -      -       +      +
    177A  LEU*     3.0    43.3    +      -       +      +
    179A  ASN*     3.6    37.2    -      -       +      +
    183A  GLU      3.4     0.6    +      -       -      +
    184A  VAL*     1.3    77.5    -      -       -      +
    186A  GLY*     1.3    57.9    +      -       -      +
    202A  SER*     3.0    23.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162A  ILE*     4.4     2.5    -      -       -      -
    176A  PRO*     3.5     0.9    -      -       -      +
    177A  LEU*     2.8    37.9    +      -       -      -
    184A  VAL*     3.3    15.2    -      -       -      +
    185A  ILE*     1.3    83.9    -      -       -      +
    187A  VAL*     1.3    62.1    +      -       -      -
    199A  ALA*     4.4     2.5    -      -       -      -
    200A  ILE      2.8    14.6    -      -       -      -
    202A  SER*     4.0     2.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  PHE*     4.2     6.7    -      -       +      -
     61A  VAL*     4.1     9.4    -      -       +      -
     62A  THR      4.4    11.0    -      -       -      +
     63A  ASN*     3.8    19.1    -      -       -      +
     96A  ILE*     4.4    11.9    -      -       +      -
    174A  GLY*     3.8    22.9    -      -       -      +
    175A  GLY      3.7     2.5    -      -       -      +
    176A  PRO*     4.6     0.4    -      -       -      -
    186A  GLY*     1.3    75.1    -      -       -      +
    188A  ASN*     1.3    70.2    +      -       -      +
    189A  THR*     2.8    15.9    +      -       -      -
    199A  ALA*     3.2     2.5    -      -       -      -
    200A  ILE*     2.8    33.5    +      -       +      +
    205A  LEU*     3.8    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  ASN*     2.8     5.5    +      -       -      +
    126A  ALA*     3.7     7.0    -      -       -      +
    127A  MET      3.0    33.3    +      -       -      +
    168A  ILE*     3.5    31.2    -      -       +      +
    172A  ASN*     3.1    21.5    +      -       -      +
    173A  ALA*     4.1     0.9    -      -       -      -
    174A  GLY      2.8    26.1    +      -       -      -
    175A  GLY      2.8    17.4    +      -       -      +
    176A  PRO      3.3     6.5    +      -       -      -
    177A  LEU*     3.3    28.9    +      -       -      +
    186A  GLY      4.0     0.2    -      -       -      -
    187A  VAL*     1.3    70.5    -      -       -      +
    189A  THR*     1.3    59.3    +      -       -      +
    199A  ALA*     4.0     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  ASN*     3.5     7.8    +      -       -      +
     65A  HIS*     3.8     8.8    -      -       -      -
     95A  ASP*     3.4    31.4    -      -       +      +
    161A  TYR*     4.6     9.9    -      -       +      -
    168A  ILE*     3.9     4.4    -      -       -      +
    173A  ALA*     3.9     8.7    -      -       -      +
    187A  VAL      2.8    14.2    +      -       -      -
    188A  ASN*     1.3    73.8    -      -       -      +
    190A  MET*     1.3    83.8    +      -       +      +
    198A  PHE      2.9    19.9    +      -       -      -
    199A  ALA*     4.4     0.2    -      -       -      -
    200A  ILE*     3.1    20.0    +      -       -      +
    232A  MET*     3.7     9.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ASP*     5.2     1.6    -      -       +      +
    161A  TYR*     4.5    12.6    -      -       +      +
    168A  ILE*     3.8    11.1    -      -       -      +
    169A  ASP*     6.1     0.7    -      -       -      +
    189A  THR*     1.3    91.8    -      -       +      +
    191A  LYS*     1.3    58.9    +      -       -      +
    192A  VAL*     3.6     6.7    +      -       +      -
    197A  SER*     3.3     2.6    -      -       -      -
    198A  PHE*     2.7    47.1    +      -       +      +
    232A  MET*     3.9    20.0    -      -       +      -
    233A  MET      3.8    23.3    -      -       -      +
    234A  LEU*     4.2    29.2    -      -       +      -
    261A  HIS*     3.6    38.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  ALA*     3.4    35.3    -      -       -      +
    168A  ILE      3.0    28.9    +      -       -      +
    169A  ASP*     4.5    12.5    -      -       +      +
    190A  MET*     1.3    72.8    -      -       -      +
    192A  VAL*     1.3    66.1    +      -       -      +
    193A  THR*     3.8    23.8    +      -       -      +
    194A  ALA*     5.1     4.0    -      -       -      +
    195A  GLY      5.6     3.8    -      -       -      +
    196A  ILE      3.8     3.8    -      -       -      +
    197A  SER*     3.9     5.0    +      -       -      +
    261A  HIS*     3.7    21.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  MET*     3.6     6.3    +      -       +      +
    191A  LYS*     1.3    75.1    -      -       -      +
    193A  THR*     1.3    74.1    +      -       -      +
    196A  ILE*     2.8    25.2    +      -       +      +
    198A  PHE*     3.5    52.0    -      -       +      -
    234A  LEU*     4.0    20.9    -      -       +      -
    240A  ILE*     4.6    11.0    -      -       +      +
    243A  GLU*     5.9     2.5    -      -       +      +
    244A  LEU*     4.1    18.4    -      -       +      +
    261A  HIS*     5.9     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191A  LYS*     3.5    14.2    -      -       -      +
    192A  VAL*     1.3    91.4    +      -       -      +
    194A  ALA*     1.3    75.1    +      -       +      +
    195A  GLY      3.0     0.9    +      -       -      -
    196A  ILE*     2.8    32.9    +      -       -      +
    244A  LEU*     3.0    25.8    -      -       +      +
    247A  ARG*     3.9    44.9    -      -       +      +
----------------------------------------------------------
 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