Contacts of the strand formed by residues 167 - 179 (chain B) in PDB entry 1I9R


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 GLY 167 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  ARG      3.6     0.4    +      -       -      -
    166B  GLN*     1.3    80.9    -      -       -      +
    168B  LEU*     1.3    60.8    +      -       -      -
    169B  TYR*     3.3     9.2    -      -       -      -
    230B  GLU*     3.0    15.7    +      -       -      +
    231B  LEU      2.5    44.1    +      -       -      -
    260B  LYS*     4.6     4.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 168 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121A  GLN*     4.9    23.1    -      -       +      +
    123A  ALA*     4.6     9.4    -      -       +      -
    147A  THR*     4.0    11.4    -      -       +      -
    149A  SER*     4.7    18.8    -      -       -      -
    167B  GLY*     1.3    73.2    -      -       -      -
    169B  TYR*     1.3    68.6    +      -       -      +
    228B  VAL*     3.4    19.1    -      -       +      -
    229B  PHE      2.9    33.7    -      -       -      +
    230B  GLU*     3.4    29.2    -      -       +      +
    260B  LYS*     3.7     5.5    -      -       -      +
    261B  LEU*     3.6    32.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 169 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  ILE*     4.2     9.3    -      -       +      +
    152B  LEU      5.3     0.7    +      -       -      -
    163B  VAL*     3.7    25.2    -      -       +      +
    165B  ARG*     2.4    35.4    +      -       -      +
    167B  GLY*     3.3    22.2    -      -       -      -
    168B  LEU*     1.3    87.0    -      -       -      +
    170B  TYR*     1.3    62.6    +      -       -      +
    171B  ILE*     3.6    12.5    +      -       +      +
    228B  VAL*     3.4     3.5    -      -       -      +
    229B  PHE*     2.6    32.7    +      -       -      +
    231B  LEU*     3.5    33.9    -      -       +      -
    258B  LEU*     3.9    14.4    -      -       +      -
    259B  LEU      3.3     6.3    -      -       -      +
    260B  LYS*     3.1    51.1    -      -       +      +
    261B  LEU*     4.3     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  TYR*     3.8    28.7    +      +       -      -
    172A  TYR*     4.6     4.8    -      +       -      -
    224A  HIS*     4.0     9.4    +      -       -      -
    259A  LEU*     4.2    11.0    -      -       +      -
    169B  TYR*     1.3    72.0    -      -       -      +
    171B  ILE*     1.3    57.7    +      -       -      +
    172B  TYR*     4.2    13.6    -      +       +      -
    224B  HIS*     4.6     2.3    +      -       -      -
    226B  GLY*     3.2    19.4    -      -       -      -
    227B  GLY*     2.9    34.7    +      -       -      -
    228B  VAL*     4.0    15.0    -      -       +      +
    257B  GLY      4.2     0.2    -      -       -      +
    258B  LEU*     3.4     3.5    -      -       -      -
    259B  LEU*     2.7    60.5    +      -       +      +
    261B  LEU*     4.0     4.7    -      -       +      +
    170C  TYR*     3.8    35.3    +      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169B  TYR*     4.2     9.0    -      -       +      +
    170B  TYR*     1.3    77.5    -      -       -      +
    172B  TYR*     1.3    67.5    +      -       -      +
    193B  LEU*     3.2    33.2    -      -       +      -
    205B  LEU*     4.8     4.0    -      -       +      -
    206B  LEU*     4.4     1.2    -      -       -      +
    225B  LEU      3.5     0.9    -      -       -      +
    226B  GLY*     3.0    28.5    -      -       -      +
    227B  GLY      3.2    11.4    +      -       -      +
    229B  PHE*     4.4    15.5    -      -       +      -
    231B  LEU*     3.7    34.5    -      -       +      -
    237B  VAL*     4.2    21.3    -      -       +      -
    256B  PHE*     4.6     7.0    -      -       +      -
    257B  GLY      3.7     7.2    -      -       -      +
    258B  LEU*     3.8    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124B  ALA      4.1     1.2    +      -       -      -
    125B  HIS*     2.5    40.1    +      +       -      +
    170B  TYR*     4.2    22.0    -      +       +      +
    171B  ILE*     1.3    80.2    -      -       -      +
    173B  ALA*     1.3    69.1    +      -       -      +
    174B  GLN*     4.7     2.9    -      -       +      -
    193B  LEU*     5.4     0.7    -      -       -      -
    224B  HIS*     4.7    12.1    -      +       -      +
    225B  LEU      3.0    12.8    -      -       -      +
    226B  GLY*     4.2     6.5    -      -       -      -
    255B  SER*     5.2     1.1    -      -       -      -
    256B  PHE*     3.2    11.0    -      -       -      -
    257B  GLY*     2.8    66.3    +      -       -      -
    258B  LEU*     3.8     4.9    -      -       -      -
    259B  LEU*     4.8     1.3    -      -       +      -
    170C  TYR*     4.5     4.5    -      +       -      -
    226C  GLY      4.6     2.2    -      -       -      -
    227C  GLY*     3.2    22.4    -      -       -      -
    228C  VAL*     2.6    31.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  TYR*     1.3    80.8    -      -       -      +
    174B  GLN*     1.3    62.1    +      -       -      +
    175B  VAL*     3.8     3.4    +      -       +      +
    193B  LEU*     5.1     2.5    -      -       +      -
    223B  ILE*     4.6     1.4    -      -       -      +
    224B  HIS*     3.7     3.8    -      -       -      -
    225B  LEU*     3.2    44.1    +      -       +      +
    239B  VAL*     3.6    34.1    -      -       +      -
    255B  SER      3.5     9.6    -      -       -      +
    256B  PHE*     3.9     4.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 174 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  TYR*     4.7     4.8    -      -       +      -
    173B  ALA*     1.3    73.0    -      -       -      +
    175B  VAL*     1.3    78.0    +      -       -      +
    176B  THR*     3.6    11.7    -      -       -      +
    222B  SER*     4.1     4.5    +      -       -      -
    223B  ILE      3.4     8.0    +      -       -      +
    224B  HIS*     3.4    28.3    -      -       +      +
    252B  GLY      5.2     1.6    -      -       -      -
    253B  PHE      2.6    29.5    +      -       -      -
    254B  THR*     3.4     0.5    -      -       -      +
    255B  SER*     3.0    46.0    +      -       -      +
    206C  LEU*     5.5     3.8    -      -       +      -
    207C  ARG      3.5     9.4    +      -       -      +
    208C  ALA*     3.6     6.6    -      -       -      +
    224C  HIS      3.7     4.9    -      -       -      +
    225C  LEU*     3.4    33.0    -      -       +      +
    226C  GLY      5.0     2.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 175 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  LEU*     4.0    17.0    -      -       +      -
    140B  TRP*     4.6     2.7    -      -       +      -
    173B  ALA*     3.8     4.2    +      -       +      +
    174B  GLN*     1.3    86.6    -      -       -      +
    176B  THR*     1.3    71.8    +      -       -      +
    177B  PHE*     4.6     1.0    -      -       +      -
    189B  PHE*     4.3    26.5    -      -       +      -
    191B  ALA*     4.9     6.7    -      -       +      -
    221B  GLN      4.1     0.5    -      -       -      +
    222B  SER      3.3     0.5    -      -       -      -
    223B  ILE*     2.5    57.5    +      -       +      +
    239B  VAL*     4.4    11.4    -      -       +      -
    241B  VAL*     5.1     2.5    -      -       +      -
    247B  VAL*     4.6     7.2    -      -       +      -
    254B  THR*     3.5    18.8    -      -       +      +
    255B  SER      4.8     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  GLN*     3.6     2.5    -      -       -      +
    175B  VAL*     1.3    75.9    -      -       -      +
    177B  PHE*     1.3    65.2    +      -       -      +
    220B  GLN*     3.7     8.3    +      -       -      +
    221B  GLN      3.1     9.7    +      -       -      -
    222B  SER*     3.0    25.1    -      -       -      +
    247B  VAL*     3.6     2.6    -      -       -      -
    248B  SER*     2.8    30.8    +      -       -      -
    253B  PHE*     2.9    60.4    -      -       +      +
    254B  THR*     3.3     8.0    +      -       -      -
    207C  ARG      3.9     0.4    -      -       -      +
    209C  ALA      4.9     0.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  VAL      4.6     3.6    -      -       -      -
    176B  THR*     1.3    77.9    +      -       -      +
    178B  CYS*     1.3    63.3    +      -       -      +
    179B  SER*     3.6    25.6    -      -       -      -
    189B  PHE*     3.4    65.7    -      +       +      -
    210B  ASN*     4.1     8.5    -      -       +      -
    212B  HIS*     3.8     5.2    -      +       -      -
    219B  GLY      3.9     0.2    -      -       -      +
    220B  GLN*     2.9    22.9    -      -       -      +
    221B  GLN*     2.9    54.4    +      -       +      +
    223B  ILE*     4.2    13.7    -      -       +      -
    246B  GLN*     3.2    16.8    -      -       +      +
    247B  VAL*     3.6     7.0    -      -       -      -
    248B  SER*     3.5     7.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177B  PHE*     1.3    76.0    -      -       -      +
    179B  SER*     1.3    60.4    +      -       -      +
    218B  CYS*     2.0    55.4    -      -       -      -
    219B  GLY      3.5     3.4    -      -       -      -
    220B  GLN*     3.6    24.9    -      -       +      -
    246B  GLN*     2.9    15.1    +      -       -      +
    248B  SER*     3.8     6.5    +      -       -      +
     55K  ASN*     2.5    34.9    -      -       -      +
     57K  ASP*     3.9     7.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 179 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177B  PHE*     3.6    11.0    -      -       -      -
    178B  CYS*     1.3    76.0    -      -       -      +
    180B  ASN*     1.3    57.7    +      -       -      +
    184B  SER*     5.9     1.6    -      -       -      -
    212B  HIS*     2.9    38.9    -      -       -      +
    213B  SER*     4.3     4.2    +      -       -      +
    215B  ALA      3.8     0.3    -      -       -      +
    218B  CYS*     2.8    17.6    -      -       -      +
    219B  GLY*     2.7    31.4    +      -       -      +
    246B  GLN*     3.7    20.2    -      -       -      +
     55K  ASN*     4.1     1.6    -      -       -      -
----------------------------------------------------------
 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