Contacts of the strand formed by residues 176 - 184 (chain A) in PDB entry 5HMG


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 LYS 176 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  GLU*     2.6    27.7    +      -       -      -
    169A  PRO      3.2    19.4    +      -       -      -
    170A  ASN*     3.3    33.7    -      -       +      +
    172A  ASP*     4.5     9.0    -      -       -      -
    174A  PHE*     4.1     4.7    -      -       +      -
    175A  ASP*     1.3    76.5    -      -       -      +
    177A  LEU*     1.3    60.5    +      -       -      +
    178A  TYR*     3.0    28.6    +      -       +      +
    235A  THR      3.8     0.3    -      -       -      +
    236A  ILE*     3.3     4.5    -      -       -      -
    237A  VAL*     2.8    35.7    +      -       +      +
    257A  TYR*     3.5    44.4    -      -       +      -
    258A  PHE      3.8     4.9    -      -       -      -
    260A  MET*     4.8     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 177 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  LEU*     4.7     6.5    -      -       +      -
    111A  LEU*     4.0    12.6    -      -       +      -
    112A  VAL*     4.8     8.5    -      -       +      -
    176A  LYS*     1.3    71.5    -      -       -      +
    178A  TYR*     1.3    61.9    +      -       -      +
    179A  ILE*     3.9    15.5    -      -       +      -
    234A  TRP*     3.9    27.6    -      -       +      -
    235A  THR      3.6     3.1    -      -       -      +
    236A  ILE*     3.9    18.2    -      -       +      +
    257A  TYR*     3.6     2.1    -      -       -      -
    258A  PHE*     2.9    61.4    +      -       +      +
    260A  MET*     3.7    33.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  GLU*     2.8    29.4    +      -       -      -
    125A  PHE*     3.9     7.9    -      +       -      -
    168A  MET*     3.5    12.6    +      -       +      +
    176A  LYS*     3.0    38.2    +      -       +      +
    177A  LEU*     1.3    75.3    -      -       -      +
    179A  ILE*     1.3    61.1    +      -       -      +
    180A  TRP*     3.8     9.7    -      -       +      -
    234A  TRP*     3.3     5.0    -      -       -      +
    235A  THR*     2.8    40.2    +      -       -      +
    237A  VAL*     3.6    34.4    -      -       +      +
    243A  LEU*     3.7    30.1    -      -       +      -
    254A  PRO*     4.2    15.5    -      -       +      -
    256A  GLY      3.2    27.8    -      -       -      -
    257A  TYR*     4.0     2.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  LEU*     3.9     9.9    -      -       +      -
     71A  LEU*     3.6    19.7    -      -       +      -
    108A  LEU*     3.7    22.9    -      -       +      -
    150A  ARG*     5.0     1.9    -      -       +      +
    151A  LEU*     3.6    15.0    -      -       +      +
    177A  LEU*     3.9    11.6    +      -       +      -
    178A  TYR*     1.3    71.7    -      -       -      +
    180A  TRP*     1.3    65.0    +      -       -      +
    232A  ILE*     3.6    25.4    -      -       +      -
    233A  TYR      3.4     2.0    -      -       -      +
    234A  TRP*     3.6    26.2    -      -       +      -
    254A  PRO*     3.4    19.1    -      -       -      +
    256A  GLY      5.1     1.2    +      -       -      -
    258A  PHE*     3.8    31.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  LEU*     4.1     9.4    -      -       -      -
    178A  TYR*     3.8    20.4    -      -       +      -
    179A  ILE*     1.3    74.9    -      -       -      +
    181A  GLY*     1.3    82.5    +      -       -      +
    182A  ILE*     5.2     0.4    -      -       +      -
    202A  VAL*     3.8    22.0    -      -       +      -
    204A  VAL*     3.5    39.4    -      -       +      +
    211A  GLN*     3.7    19.7    -      -       +      -
    213A  ILE*     3.4    30.7    -      -       +      -
    232A  ILE*     3.6     8.5    -      -       -      +
    233A  TYR*     2.8    56.4    +      +       +      +
    234A  TRP      4.1     1.4    -      -       -      -
    235A  THR*     2.9    23.7    +      -       -      +
    243A  LEU*     6.0     0.4    -      -       +      -
    245A  ILE*     6.1     1.1    -      -       +      -
    251A  LEU*     4.9     3.1    -      -       +      -
    252A  ILE      3.8    12.3    -      -       -      +
    254A  PRO*     3.9    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  TRP*     1.3    91.0    -      -       -      +
    182A  ILE*     1.3    61.0    +      -       -      +
    202A  VAL*     4.6     0.5    -      -       -      +
    230A  ILE*     5.9     0.4    -      -       -      -
    231A  SER      3.1    15.0    -      -       -      -
    232A  ILE*     4.4     3.4    -      -       -      -
    233A  TYR*     4.4     1.6    -      -       -      -
    251A  LEU*     3.7     9.4    -      -       -      +
    252A  ILE*     3.0    37.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  TRP*     5.3     0.7    -      -       +      -
    181A  GLY*     1.3    74.2    -      -       -      +
    183A  HIS*     1.3    63.6    +      -       -      +
    184A  HIS*     4.0    18.7    +      -       +      +
    201A  ARG      4.9     0.2    -      -       -      -
    202A  VAL*     3.7    17.7    -      -       +      +
    213A  ILE*     3.5    49.8    -      -       +      +
    215A  PRO*     3.5    27.6    -      -       +      -
    230A  ILE*     3.3     4.3    -      -       -      +
    231A  SER*     3.1    23.3    +      -       -      +
    233A  TYR*     4.1    13.2    -      -       +      -
    250A  ASN*     3.2    21.1    -      -       +      +
    252A  ILE*     4.1     4.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  TYR*     2.8    29.7    +      +       -      -
    153A  TRP*     3.7    11.6    -      +       -      -
    182A  ILE*     1.3    72.2    -      -       -      +
    184A  HIS*     1.3    59.5    +      -       -      +
    185A  PRO*     3.6    13.4    -      -       +      +
    190A  GLU*     3.3    23.0    +      -       -      -
    194A  LEU*     3.8    14.4    -      -       +      -
    195A  TYR*     2.8    35.7    +      -       +      +
    215A  PRO*     3.4     7.7    -      -       -      +
    228A  SER*     4.0     2.0    -      -       -      -
    229A  ARG      4.0     4.0    -      -       -      -
    230A  ILE*     3.8    23.6    -      -       +      -
    250A  ASN*     2.8    38.6    +      -       -      +
    252A  ILE*     4.1     8.0    -      -       +      +
    329A  SIA      3.7     4.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  ILE*     4.1    13.8    -      -       +      +
    183A  HIS*     1.3    73.3    -      -       -      +
    185A  PRO*     1.3    65.8    -      -       -      +
    213A  ILE*     5.2     2.5    -      -       +      -
    214A  ILE      4.3     2.7    -      -       -      -
    215A  PRO*     3.3    12.9    -      -       +      +
    216A  ASN*     2.7    56.0    +      -       -      +
    220A  ARG*     3.3    11.4    +      -       -      +
    228A  SER*     3.3    20.4    -      -       -      -
    229A  ARG      2.9    24.5    +      -       -      +
    231A  SER*     2.8    33.6    +      -       -      -
    233A  TYR*     5.9     0.7    -      -       -      -
    210C  GLN*     3.6    19.1    +      -       -      -
----------------------------------------------------------
 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