Contacts of the strand formed by residues 120 - 132 (chain T) in PDB entry 1H2I


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 TYR 120 (chain T).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26S  PHE*     4.0    12.8    -      +       -      -
     84S  TRP      4.9     0.4    +      -       -      -
     85S  ALA*     2.7    52.5    -      -       +      +
     86S  HIS      3.5    27.4    -      -       -      -
     87S  SER*     3.9    13.9    +      -       -      -
    112S  ARG*     4.9     6.4    +      -       -      -
    114S  GLN*     3.3    30.4    +      -       -      +
    112T  ARG*     3.5    46.7    -      -       +      +
    113T  VAL      3.2    14.8    -      -       -      +
    114T  GLN*     4.2     1.1    -      -       -      -
    118T  GLY      3.2    17.5    -      -       -      +
    119T  SER*     1.3    75.6    -      -       -      +
    121T  HIS*     1.3    71.5    +      -       -      +
    158T  PHE*     4.8     3.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 121 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81S  TYR      4.4     4.3    -      -       -      -
     84S  TRP*     3.3    46.8    +      +       -      -
     86S  HIS*     2.8    41.5    -      +       +      -
    112T  ARG*     3.6     1.7    -      -       -      -
    113T  VAL*     2.9    38.5    +      -       +      +
    120T  TYR*     1.3    83.7    +      -       -      +
    122T  GLU*     1.3    62.0    +      -       -      +
    154T  ALA*     3.7    11.2    -      -       -      +
    157T  SER*     3.4    33.5    -      -       -      -
    158T  PHE*     3.5    35.6    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 122 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86S  HIS*     3.0    39.2    +      -       -      +
     87S  SER*     3.4    12.3    -      -       -      -
     88S  ILE*     2.8    49.0    +      -       +      +
    147S  VAL*     4.6     0.5    -      -       -      +
     89T  THR*     2.6    38.7    +      -       -      +
    110T  PHE*     3.8     5.6    -      -       -      +
    111T  VAL      3.2    17.7    -      -       -      +
    112T  ARG*     3.9    13.5    -      -       +      +
    121T  HIS*     1.3    77.3    -      -       -      +
    123T  ASP*     1.3    67.1    +      -       -      +
    154T  ALA*     4.5     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 123 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86S  HIS*     5.1     4.4    +      -       +      +
     88S  ILE*     3.8    11.7    -      -       -      -
    147S  VAL*     3.3    21.0    -      -       -      +
    148S  THR*     5.1     2.3    +      -       -      -
    110T  PHE*     3.5     2.9    -      -       -      +
    111T  VAL*     3.0    32.8    +      -       -      +
    122T  GLU*     1.3    76.6    -      -       -      +
    124T  VAL*     1.3    72.8    +      -       -      +
    150T  GLY      4.4     1.4    -      -       -      +
    153T  ARG*     2.6    52.6    +      -       +      +
    154T  ALA*     3.8    23.5    -      -       +      +
    157T  SER*     5.2     2.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 124 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88S  ILE*     4.1     0.2    -      -       -      +
     91S  GLN*     3.9     6.5    -      -       -      +
    143S  ARG*     3.9    20.2    -      -       +      +
    144S  LYS*     4.3     4.6    -      -       +      -
    147S  VAL*     3.2    30.7    -      -       +      -
    108T  CYS*     4.5     7.0    -      -       +      -
    109T  ALA      3.2     8.7    -      -       -      +
    110T  PHE*     3.1    38.8    -      -       +      -
    123T  ASP*     1.3    80.2    +      -       -      +
    125T  GLY*     1.3    64.1    +      -       -      +
    126T  TYR*     6.2     0.4    -      -       +      -
    150T  GLY*     4.0     2.2    -      -       -      -
    153T  ARG*     2.8    34.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 125 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144S  LYS*     4.6     1.6    -      -       -      -
    108T  CYS*     3.2     7.6    -      -       -      +
    109T  ALA      2.8    29.9    +      -       -      -
    124T  VAL*     1.3    78.1    -      -       -      +
    126T  TYR*     1.3    61.2    +      -       -      +
    146T  ALA      3.4     8.1    -      -       -      -
    149T  ASP*     3.4     6.3    -      -       -      -
    150T  GLY*     3.3    27.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 126 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136S  ALA*     3.8    13.7    -      -       -      -
    139S  LEU*     3.4    18.7    -      -       +      +
    140S  GLU*     3.8    43.6    -      -       +      +
    143S  ARG*     3.8    14.1    -      -       +      -
    144S  LYS*     4.1     4.9    -      -       +      +
     94T  ASP*     2.6    36.1    +      -       -      +
     95T  PHE*     4.0     2.3    -      -       -      -
    106T  GLY*     3.4    28.9    -      -       -      -
    107T  VAL      3.3    15.5    -      -       -      -
    108T  CYS*     3.6    17.7    -      -       +      -
    124T  VAL*     6.2     0.4    -      -       +      -
    125T  GLY*     1.3    73.4    -      -       -      -
    127T  GLY*     1.3    68.7    +      -       -      +
    128T  VAL*     3.7    16.4    +      -       +      +
    145T  GLU*     3.9     3.1    -      -       -      +
    146T  ALA*     3.6     5.0    -      -       -      -
    149T  ASP*     2.8    25.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 127 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106T  GLY*     3.6     1.2    -      -       -      -
    107T  VAL      2.6    38.0    +      -       -      +
    126T  TYR*     1.3    74.4    -      -       -      +
    128T  VAL*     1.3    66.0    +      -       -      +
    142T  ALA*     3.2    29.8    -      -       -      +
    145T  GLU*     4.1     6.5    -      -       -      -
    146T  ALA*     3.5     6.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 128 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136S  ALA*     3.7    33.0    -      -       +      +
    137S  LEU*     5.0     6.5    -      -       +      -
    140S  GLU*     5.0     9.4    -      -       -      +
    105T  VAL      3.4     4.0    -      -       -      +
    126T  TYR*     3.7    19.5    -      -       +      +
    127T  GLY*     1.3    79.9    -      -       -      +
    129T  SER*     1.3    61.6    +      -       -      +
    130T  GLU*     3.8    24.9    -      -       +      +
    141T  LYS*     2.6    34.7    +      -       -      +
    142T  ALA*     4.0     3.7    -      -       -      +
    145T  GLU*     3.8     6.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 129 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103T  PHE      3.3     6.0    -      -       -      +
    105T  VAL*     2.8    35.9    +      -       -      +
    128T  VAL*     1.3    78.8    -      -       -      +
    130T  GLU*     1.3    61.6    +      -       -      +
    132T  LEU*     3.7    15.4    -      -       -      +
    138T  SER*     3.4    46.5    +      -       -      -
    141T  LYS*     3.8    15.5    -      -       -      +
    142T  ALA*     4.3     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 130 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134S  SER*     2.9    29.1    +      -       -      -
    135S  LYS      4.9     0.9    +      -       -      -
    136S  ALA*     3.8     9.7    +      -       +      +
    137S  LEU*     4.0     8.7    -      -       -      +
     95T  PHE*     5.8     0.2    -      -       -      -
    103T  PHE      3.5     2.7    -      -       -      -
    104T  TYR*     3.6    31.4    -      -       +      +
    105T  VAL      4.9     0.4    -      -       -      +
    128T  VAL*     3.8    23.0    -      -       +      +
    129T  SER*     1.3    78.5    +      -       -      +
    131T  GLY*     1.3    60.1    +      -       -      +
    132T  LEU*     3.6     5.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 131 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102T  LYS*     3.3    39.6    -      -       -      +
    103T  PHE      3.0     9.9    +      -       -      -
    104T  TYR*     3.7     9.7    -      -       -      -
    130T  GLU*     1.3    72.7    -      -       -      +
    132T  LEU*     1.3    66.9    +      -       -      +
    133T  LYS*     3.8     1.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 132 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102T  LYS*     3.2     1.4    -      -       -      -
    103T  PHE*     2.8    29.4    +      -       -      -
    129T  SER*     3.7    21.5    -      -       -      +
    130T  GLU      3.6     4.8    -      -       -      +
    131T  GLY*     1.3    80.4    -      -       -      +
    133T  LYS*     1.3    61.2    +      -       -      +
    134T  SER*     4.0     6.1    -      -       -      +
    137T  LEU*     4.1    27.6    -      -       +      +
    138T  SER*     3.4    15.5    +      -       -      +
    141T  LYS*     5.1     7.9    -      -       +      -
----------------------------------------------------------
 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