Contacts of the strand formed by residues 172 - 180 (chain D) in PDB entry 3H2U


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 172 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47D  ARG*     4.0     3.1    -      -       -      +
    139D  LEU*     5.2     0.5    -      -       -      +
    140D  PRO      4.5     2.8    +      -       -      -
    141D  PRO*     3.5    30.8    +      -       -      +
    143D  LEU*     4.2    13.8    +      -       -      +
    163D  LEU*     4.1    18.7    -      -       -      +
    164D  VAL      3.7     3.8    +      -       -      -
    165D  TYR*     3.5    24.6    -      -       -      -
    171D  GLN*     1.3    76.6    -      -       -      +
    173D  LYS*     1.3    57.7    +      -       -      +
    174D  GLY*     3.1    20.0    +      -       -      -
    175D  TYR      4.5     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 173 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  PRO*     6.2     0.4    -      -       -      -
    164D  VAL*     2.8    25.1    +      -       +      +
    165D  TYR      4.0     8.3    -      -       -      -
    166D  SER*     4.1    11.7    -      -       -      +
    171D  GLN      4.2     0.7    -      -       -      +
    172D  SER*     1.3    70.5    -      -       -      +
    174D  GLY*     1.3    59.6    +      -       -      +
    175D  TYR*     3.4    26.5    -      -       +      +
    219D  HIS*     3.0    46.9    +      -       -      +
    220D  SER      4.4     1.8    +      -       -      -
    272D  ALA      4.1     8.1    +      -       -      -
    276D  GLU*     3.5    22.8    +      -       -      -
    295D  SER*     5.6     0.5    -      -       -      -
    296D  PHE*     3.3    71.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 174 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  ASN*     3.0    12.1    +      -       -      -
    139D  LEU*     2.9    48.8    +      -       -      +
    141D  PRO*     4.8     6.7    -      -       -      -
    172D  SER*     3.1    14.7    +      -       -      -
    173D  LYS*     1.3    78.8    -      -       -      +
    175D  TYR*     1.3    59.7    +      -       -      +
    295D  SER*     6.4     1.3    -      -       -      -
    296D  PHE      5.6     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 175 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135D  CYS*     4.2     4.9    -      -       -      -
    136D  VAL      3.2    14.4    -      -       -      +
    137D  ALA*     3.6    15.0    -      -       +      -
    139D  LEU*     3.7     7.5    -      -       -      +
    163D  LEU*     3.7     5.0    -      -       -      +
    164D  VAL*     3.2    44.3    +      -       +      +
    172D  SER*     4.5     0.8    +      -       -      -
    173D  LYS*     3.5    26.9    -      -       +      +
    174D  GLY*     1.3    80.6    +      -       -      +
    176D  GLY*     1.3    60.4    +      -       -      +
    177D  PHE*     4.1     6.3    -      +       -      -
    218D  LEU      2.8    28.8    +      -       -      -
    219D  HIS*     3.5     3.5    -      -       -      -
    220D  SER*     2.9    18.0    +      -       -      -
    296D  PHE*     3.5    29.8    -      +       +      -
    297D  CYS      3.9    13.0    -      -       -      -
    299D  PRO*     3.7    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 176 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135D  CYS*     3.2     7.4    -      -       -      -
    136D  VAL      2.8    29.1    +      -       -      -
    139D  LEU*     4.0     1.4    -      -       -      +
    148D  PHE*     3.5    17.7    -      -       -      -
    162D  PHE      3.2    13.9    -      -       -      -
    163D  LEU*     3.9     2.9    -      -       -      -
    175D  TYR*     1.3    76.4    -      -       -      +
    177D  PHE*     1.3    69.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 177 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  LEU*     3.9    15.7    -      -       +      -
    134D  LEU      3.2    15.3    -      -       -      +
    135D  CYS*     3.8    15.7    -      -       +      -
    136D  VAL      4.9     0.4    -      -       -      +
    148D  PHE*     3.5     6.7    -      -       -      -
    160D  ARG      4.8     0.2    -      -       -      -
    161D  CYS*     3.4     4.2    -      -       -      -
    162D  PHE*     2.9    63.8    +      +       +      -
    164D  VAL*     3.6    24.2    -      -       +      -
    175D  TYR*     4.1    11.7    -      +       -      -
    176D  GLY*     1.3    77.4    -      -       -      -
    178D  ALA*     1.3    60.9    +      -       -      +
    208D  THR*     4.2     9.4    -      -       +      -
    213D  LEU*     3.1    32.8    -      -       +      -
    218D  LEU*     4.2     6.3    -      -       +      -
    299D  PRO*     3.6    28.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 178 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132D  ALA      3.4     2.8    -      -       -      +
    133D  LEU*     3.6     2.2    -      -       -      -
    134D  LEU*     2.8    38.8    +      -       +      +
    136D  VAL*     5.4     1.7    -      -       +      +
    148D  PHE*     4.9     1.8    -      -       +      -
    152D  VAL*     3.5    42.0    -      -       +      -
    158D  LEU*     3.9     6.1    -      -       +      -
    160D  ARG      3.7     5.2    -      -       -      -
    161D  CYS*     5.2     0.2    -      -       -      -
    177D  PHE*     1.3    76.0    -      -       -      +
    179D  GLU*     1.3    59.0    +      -       -      +
    180D  TYR*     4.1    10.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 179 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58D  ARG*     4.6     7.1    +      -       -      -
    129D  PRO      5.1     0.5    -      -       -      +
    130D  THR*     4.1     7.8    +      -       -      -
    131D  ASP*     3.8    21.8    +      -       -      +
    132D  ALA      3.1    13.4    +      -       -      +
    133D  LEU*     3.5    14.3    -      -       +      +
    158D  LEU*     3.4     4.2    -      -       -      +
    159D  GLU*     2.6    42.9    +      -       +      +
    160D  ARG*     2.7    64.3    +      -       +      +
    178D  ALA*     1.3    73.2    -      -       -      +
    180D  TYR*     1.3    67.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 180 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60D  LYS*     5.4     0.9    -      -       -      -
    131D  ASP*     6.0     0.5    -      -       -      +
    132D  ALA*     3.2    17.3    +      -       +      +
    134D  LEU*     4.3     4.5    -      -       +      -
    152D  VAL*     2.6    40.3    +      -       -      +
    155D  PHE*     3.6     5.2    -      -       +      -
    156D  GLY      3.3    32.1    -      -       -      -
    157D  SER      3.3     8.3    -      -       -      +
    158D  LEU*     3.9    11.0    -      -       +      -
    159D  GLU*     3.6    11.1    -      -       -      +
    178D  ALA*     4.1    19.1    -      -       +      -
    179D  GLU*     1.3    85.3    -      -       -      +
    181D  MET*     1.3    63.8    +      -       -      +
    182D  LYS      3.3    20.2    -      -       -      +
    185D  SER*     3.6    17.0    -      -       -      -
    186D  ALA*     3.6    24.2    -      -       -      -
    189D  ALA*     3.4    24.8    -      -       +      +
----------------------------------------------------------
 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