Contacts of the strand formed by residues 185 - 192 (chain A) in PDB entry 8LDH


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 CYS 185 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  ARG*     2.7    45.0    +      -       -      +
    174A  MET*     4.0    26.5    -      -       +      -
    175A  GLY*     3.6    34.5    -      -       -      -
    178A  LEU*     4.6     1.8    -      -       -      -
    180A  VAL*     4.1    13.7    -      -       -      -
    181A  HIS      3.5    11.8    +      -       -      -
    182A  SER      3.1     6.0    +      -       -      +
    183A  CYS      3.5     0.2    -      -       -      -
    184A  SER*     1.3    79.2    -      -       -      +
    186A  HIS*     1.3    53.2    +      -       -      +
    205A  ASN      3.8     5.2    -      -       -      -
    206A  VAL*     4.1    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  ARG*     3.7     6.7    +      -       -      +
    174A  MET*     4.3     5.6    -      -       -      +
    183A  CYS      3.5    15.2    +      -       -      -
    184A  SER*     2.9    31.0    +      -       -      -
    185A  CYS*     1.3    72.2    -      -       -      +
    187A  GLY*     1.3    56.6    -      -       -      +
    188A  TRP*     4.7     6.1    -      -       +      +
    203A  GLY      3.6     2.8    -      -       -      +
    204A  MET*     3.2     3.6    -      -       -      +
    205A  ASN*     2.8    64.1    +      -       -      +
    207A  ALA*     4.8     4.6    +      -       -      -
    331A  CIT      2.6    50.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  SER*     4.6     6.6    -      -       -      -
    170A  PHE*     4.3    15.2    -      -       -      -
    171A  ARG*     4.1    19.1    +      -       -      +
    174A  MET*     4.5     2.4    -      -       -      -
    186A  HIS*     1.3    73.5    -      -       -      +
    188A  TRP*     1.3    77.7    +      -       -      -
    203A  GLY      4.8     0.2    -      -       -      -
    204A  MET*     3.9    22.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  SER*     4.2     2.0    -      -       -      -
    170A  PHE*     4.4     4.3    -      -       -      -
    171A  ARG*     6.0     1.3    -      -       -      -
    186A  HIS*     4.7     4.1    -      -       +      +
    187A  GLY*     1.3    99.4    +      -       -      +
    189A  VAL*     1.3    59.9    +      -       -      +
    190A  ILE*     4.0    12.3    -      -       +      -
    199A  SER*     3.6     1.7    -      -       -      -
    200A  VAL*     2.8    48.5    +      -       +      +
    203A  GLY*     5.3     8.5    -      -       -      -
    267A  VAL*     3.6    38.6    -      -       +      -
    269A  PRO*     3.1    48.2    -      -       +      -
    289A  PRO*     4.0    22.7    -      -       +      -
    303A  MET*     5.2     4.7    -      -       -      -
    331A  CIT      3.6    35.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  CYS*     3.3    16.7    -      -       -      +
    166A  ASP*     4.0    21.3    -      -       +      +
    167A  SER*     3.1    24.2    +      -       -      +
    170A  PHE*     4.0    33.0    -      -       +      -
    188A  TRP*     1.3    75.3    -      -       -      +
    190A  ILE*     1.3    61.5    -      -       -      +
    197A  VAL*     3.6    35.2    -      -       +      -
    198A  PRO      3.2     5.6    -      -       -      +
    199A  SER*     4.2    11.7    -      -       -      -
    228A  HIS*     4.3    12.6    -      -       +      +
    231A  VAL*     5.1     2.5    -      -       +      -
    269A  PRO*     4.1     4.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  CYS*     3.9     6.8    -      -       -      -
    188A  TRP*     4.2    14.6    -      -       +      -
    189A  VAL*     1.3    79.2    -      -       -      +
    191A  GLY*     1.3    59.5    +      -       -      +
    197A  VAL*     3.7     3.8    -      -       -      -
    198A  PRO*     2.4    66.1    +      -       +      +
    200A  VAL*     4.2    15.0    -      -       +      -
    269A  PRO*     5.1     1.8    -      -       +      -
    287A  SER*     3.3    21.3    -      -       -      +
    288A  LEU*     4.4     2.7    -      -       +      -
    289A  PRO*     4.8     7.0    -      -       +      -
    303A  MET*     3.8    37.7    -      -       +      -
    305A  LEU*     4.9     4.0    -      -       +      -
    313A  LEU*     3.7    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  ASP*     4.0     1.4    -      -       -      +
    163A  CYS*     3.7     1.0    -      -       -      -
    190A  ILE*     1.3    83.1    -      -       -      +
    192A  GLU*     1.3    62.7    +      -       -      -
    193A  HIS      3.4     3.6    +      -       -      -
    198A  PRO*     3.5     9.6    -      -       -      -
    286A  LEU*     4.0     8.4    -      -       -      +
    287A  SER*     3.1    37.5    +      -       -      -
    313A  LEU*     3.8    18.6    -      -       -      -
    316A  SER*     5.5     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  ARG*     3.5    28.7    +      -       -      -
    141A  ASP*     3.1    16.8    -      -       +      +
    190A  ILE      4.1     0.2    +      -       -      -
    191A  GLY*     1.3    70.6    -      -       -      -
    193A  HIS*     1.3    73.3    +      -       -      +
    194A  GLY      3.1     0.3    +      -       -      -
    196A  SER*     3.2    35.8    +      -       -      -
    197A  VAL*     2.9    14.1    -      -       -      +
    198A  PRO*     4.3     3.0    -      -       -      +
    286A  LEU*     3.5    12.5    -      -       +      +
    316A  SER*     3.3    26.2    +      -       -      +
    319A  THR*     5.2     3.8    -      -       -      +
    320A  LEU*     4.1    19.4    -      -       +      +
----------------------------------------------------------
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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