Contacts of the strand formed by residues 173 - 183 (chain R) in PDB entry 2D2I


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 ILE 173 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164R  ALA*     4.4     5.2    -      -       +      +
    167R  LEU*     3.8    12.6    -      -       +      -
    168R  HIS*     3.0    43.6    +      -       +      +
    172R  GLY*     1.3    72.2    -      -       -      -
    174R  ILE*     1.3    56.1    +      -       -      +
    175R  LYS*     3.6    24.9    -      -       -      +
    226R  LEU*     3.6    21.1    -      -       +      -
    229R  LYS*     2.7    34.3    +      -       +      -
    230R  LEU*     4.4     9.2    -      -       +      -
    247R  LEU*     6.2     0.2    -      -       +      -
    249R  VAL*     3.6    36.6    -      -       +      -
    250R  GLN      3.9     2.2    -      -       -      -
    251R  VAL*     4.2     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 174 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    306Q  ASP*     4.6     6.0    -      -       -      +
    172R  GLY      4.3     0.2    -      -       -      +
    173R  ILE*     1.3    76.7    -      -       -      +
    175R  LYS*     1.3    70.7    -      -       +      +
    229R  LYS*     3.2    30.4    -      -       -      +
    250R  GLN*     3.0    42.9    +      -       +      +
    251R  VAL      3.3    28.5    -      -       -      +
    252R  GLU*     3.8    21.8    -      -       +      +
    308R  ASP*     5.8     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 175 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305Q  MET*     3.8    23.3    -      -       +      +
    306Q  ASP*     2.8    44.4    +      -       +      +
    308Q  ASP*     2.4    35.0    +      -       -      -
    309Q  LEU*     3.9    17.5    -      -       +      -
    173R  ILE*     3.6    10.6    -      -       -      +
    174R  ILE*     1.3    80.9    -      -       -      +
    176R  GLY*     1.3    60.9    +      -       -      +
    229R  LYS*     3.3    12.1    -      -       -      -
    249R  VAL*     3.6     0.3    -      -       -      -
    250R  GLN*     2.8    63.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 176 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305Q  MET*     3.8    10.4    -      -       -      +
    309Q  LEU*     4.9     5.6    -      -       -      -
    175R  LYS*     1.3    80.3    -      -       -      +
    177R  THR*     1.3    61.2    +      -       -      -
    229R  LYS      2.9    10.4    +      -       -      +
    230R  LEU*     3.8    15.9    -      -       -      -
    231R  ASN      3.2    19.2    +      -       -      -
    248R  VAL      3.1    13.9    -      -       -      -
    249R  VAL*     3.8     2.0    -      -       -      -
    250R  GLN      4.8     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 177 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248Q  VAL*     3.7    27.4    -      -       +      -
    303Q  LEU*     4.2    12.5    -      -       -      +
    305Q  MET*     4.8     0.2    -      -       -      -
    309Q  LEU*     4.3    12.1    -      -       +      +
    311Q  LYS*     3.4    34.3    +      -       +      +
    176R  GLY*     1.3    75.6    -      -       -      -
    178R  MET*     1.3    71.3    +      -       -      +
    230R  LEU*     5.6     0.4    -      -       -      -
    231R  ASN      3.2    14.9    +      -       -      -
    232R  GLY*     4.4     0.9    -      -       -      -
    247R  LEU*     3.2     4.1    -      -       -      +
    248R  VAL*     2.8    41.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 178 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311Q  LYS*     3.8     5.4    +      -       -      +
    156R  THR*     4.4    13.5    -      -       +      -
    160R  LEU*     3.8    31.0    -      -       +      -
    177R  THR*     1.3    80.1    +      -       -      +
    179R  THR*     1.3    75.1    +      -       -      +
    180R  THR*     3.9     8.5    -      -       +      +
    213R  THR*     3.7    16.4    -      -       +      -
    216R  ALA*     4.4     7.6    -      -       +      +
    230R  LEU*     6.2     1.1    -      -       +      -
    231R  ASN      2.9    13.6    +      -       -      +
    232R  GLY*     2.9    26.1    -      -       -      -
    233R  ILE      3.0    31.0    +      -       -      +
    245R  VAL*     4.4     7.9    -      -       +      -
    246R  ASP      3.1    14.1    -      -       -      +
    247R  LEU*     3.8    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 179 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246Q  ASP*     2.5    29.4    +      -       +      +
    311Q  LYS*     3.0    18.2    +      -       -      -
    178R  MET*     1.3    75.7    +      -       -      +
    180R  THR*     1.3    66.1    +      -       -      +
    181R  THR*     4.0     5.1    +      -       -      +
    233R  ILE*     3.2    22.0    -      -       +      +
    235R  LEU*     4.0    27.8    -      -       +      -
    244R  VAL      3.9     0.7    -      -       -      +
    245R  VAL*     3.5     0.3    -      -       -      -
    246R  ASP*     2.7    46.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 180 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156R  THR*     4.1    15.0    -      -       +      +
    178R  MET*     3.9     8.0    -      -       +      +
    179R  THR*     1.3    74.3    -      -       -      +
    181R  THR*     1.3    61.7    +      -       -      +
    182R  HIS*     3.3    15.6    +      -       +      -
    213R  THR*     4.9     4.5    -      -       +      -
    233R  ILE      3.1     5.9    +      -       -      +
    234R  ALA*     3.4    26.0    -      -       +      +
    235R  LEU      2.9    26.2    +      -       -      -
    244R  VAL      3.3     7.9    +      -       -      -
    245R  VAL*     4.0    10.8    -      -       -      +
    316R  TYR*     2.6    28.7    +      -       -      -
   6339R  SO4      5.2     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 181 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181Q  THR*     4.0    14.2    +      -       +      -
    208Q  ILE*     4.4    12.1    -      -       +      +
    235Q  LEU*     3.8    16.0    -      -       +      +
    237Q  VAL*     4.4    12.3    -      -       +      -
    179R  THR*     4.0     5.3    +      -       -      +
    180R  THR*     1.3    69.8    -      -       -      +
    182R  HIS*     1.3    59.3    -      -       -      +
    235R  LEU*     3.4    12.2    -      -       +      +
    237R  VAL*     3.8    34.1    -      -       +      -
    243R  SER*     3.5     3.6    -      -       -      -
    244R  VAL*     2.8    47.6    +      -       +      +
    246R  ASP*     6.0     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 182 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155R  CYS*     3.6    25.6    -      -       -      -
    156R  THR*     3.9     6.7    -      -       -      -
    180R  THR*     3.3    14.1    +      -       +      +
    181R  THR*     1.3    74.2    -      -       -      +
    183R  SER*     1.3    80.5    +      -       -      +
    185R  THR*     4.0    13.2    -      -       +      -
    234R  ALA*     5.3     0.7    -      -       +      -
    235R  LEU      2.9     7.9    +      -       -      +
    236R  ARG*     3.3    31.2    +      -       -      +
    237R  VAL*     2.7    37.3    +      -       -      +
    242R  VAL      4.8     0.4    -      -       -      -
    243R  SER*     3.3    15.8    +      -       -      -
    316R  TYR*     3.3    24.4    +      -       -      -
    318R  ASN*     3.8    22.9    -      -       +      +
   6339R  SO4      5.9     1.6    -      -       -      -
   6340R  SO4      5.6     0.7    -      -       -      -
   6341R  NAP      5.1     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 183 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182R  HIS*     1.3    94.7    +      -       -      +
    184R  TYR*     1.3    65.7    +      -       -      +
    236R  ARG*     3.4     4.9    +      -       -      -
    237R  VAL      3.8     0.4    -      -       -      -
    239R  THR*     3.0    30.9    +      -       -      -
    240R  PRO      3.8     2.0    -      -       -      -
    241R  ASN*     2.9    28.7    -      -       -      -
    242R  VAL      2.6    27.6    +      -       -      -
    243R  SER*     3.3     9.0    +      -       -      -
    318R  ASN*     4.3     4.7    -      -       -      -
----------------------------------------------------------
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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