Contacts of the strand formed by residues 217 - 229 (chain K) in PDB entry 1IA0


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 217 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148K  GLU*     3.6    30.1    +      -       -      -
    149K  ILE      3.4     6.3    -      -       -      -
    150K  TYR*     4.0    13.6    -      -       -      -
    203K  ARG*     3.1    25.1    +      -       -      -
    204K  THR*     4.4     1.9    +      -       -      -
    213K  THR*     4.0     4.9    -      -       -      +
    214K  SER*     3.3    16.9    +      -       -      +
    216K  ARG*     1.3    80.3    -      -       -      +
    218K  HIS*     1.3    62.5    +      -       -      +
    249K  LEU      4.1     1.6    -      -       -      +
    250K  ALA*     3.6    15.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 218 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148K  GLU*     3.1     6.2    -      -       -      +
    149K  ILE*     2.6    74.2    +      -       +      +
    151K  CYS      6.0     0.7    -      -       -      -
    203K  ARG*     4.0     1.6    -      -       -      -
    216K  ARG      4.4     5.1    +      -       -      -
    217K  SER*     1.3    75.4    -      -       -      +
    219K  ALA*     1.3    61.0    +      -       -      +
    220K  VAL*     4.2     2.6    +      -       +      -
    247K  VAL*     5.6     0.4    -      -       +      -
    248K  ASP      3.7     5.6    -      -       -      +
    249K  LEU*     3.5    19.4    -      -       +      +
    250K  ALA*     3.0    36.6    +      -       +      +
    271K  ILE      5.5     4.0    +      -       -      -
    274K  SER*     3.7    23.2    -      -       -      -
    275K  LEU*     4.1    27.0    +      -       +      +
    311K  LEU*     4.2    12.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 219 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146K  TYR*     4.1    21.1    -      -       +      +
    147K  MET      3.4     5.6    -      -       -      +
    148K  GLU*     4.5     0.2    -      -       -      +
    157K  LEU*     5.1     0.4    -      -       +      -
    203K  ARG*     3.4    38.1    -      -       -      +
    218K  HIS*     1.3    73.6    -      -       -      +
    220K  VAL*     1.3    63.9    +      -       -      +
    221K  PHE      4.1     0.2    -      -       -      -
    246K  LEU      3.9     1.2    -      -       -      +
    247K  VAL*     3.6     3.1    -      -       -      +
    248K  ASP*     3.0    42.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 220 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145K  SER      4.0     0.3    -      -       -      +
    146K  TYR*     3.4     4.8    -      -       -      -
    147K  MET*     2.9    54.0    +      -       +      +
    149K  ILE*     4.3    24.0    -      -       +      -
    218K  HIS      5.1     1.3    -      -       -      -
    219K  ALA*     1.3    79.7    -      -       -      +
    221K  PHE*     1.3    60.6    +      -       -      +
    222K  ASN*     3.6    29.2    +      -       -      +
    245K  SER*     4.0    10.8    -      -       -      +
    246K  LEU      3.8     2.0    -      -       -      -
    247K  VAL*     4.2    20.2    -      -       +      +
    311K  LEU*     4.6     7.6    -      -       +      -
    314K  LEU*     6.1     1.1    -      -       +      -
    315K  LEU*     4.9     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 221 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119K  ILE*     3.9    24.5    -      -       +      -
    123K  CYS*     3.9    11.9    -      -       -      -
    144K  VAL*     3.5    23.6    -      -       +      -
    145K  SER      3.8     2.2    -      -       -      -
    146K  TYR*     3.8    37.9    -      +       +      -
    158K  LEU*     6.2     0.7    -      -       +      -
    192K  ILE*     4.4     7.2    -      -       +      -
    195K  LEU*     5.8     1.3    -      -       +      -
    196K  MET*     3.9    37.7    -      -       +      -
    219K  ALA      4.1     0.4    -      -       -      -
    220K  VAL*     1.3    70.7    -      -       -      +
    222K  ASN*     1.3    62.0    +      -       -      +
    223K  ILE*     3.7    30.3    -      -       +      -
    244K  ILE      3.6     1.9    -      -       -      +
    246K  LEU*     2.8    55.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 222 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143K  GLU      3.9     0.2    -      -       -      +
    144K  VAL*     3.3     7.8    -      -       -      +
    145K  SER*     2.9    50.1    +      -       -      +
    147K  MET*     3.9    20.1    -      -       -      +
    220K  VAL*     3.6    11.2    +      -       -      +
    221K  PHE*     1.3    76.4    +      -       -      +
    223K  ILE*     1.3    63.5    +      -       -      +
    224K  ILE*     4.3     4.4    -      -       +      +
    243K  LYS*     3.8    27.6    +      -       +      +
    244K  ILE      3.2     2.8    +      -       -      +
    245K  SER*     3.2    40.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 223 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122K  LEU*     4.2    19.3    -      -       +      -
    123K  CYS*     3.9    17.5    -      -       -      -
    126K  LEU*     4.2    14.4    -      -       +      -
    142K  VAL*     3.9    16.2    -      -       +      -
    143K  GLU      3.3     9.2    -      -       -      +
    144K  VAL*     4.7     0.7    -      -       +      -
    192K  ILE*     4.3    10.3    -      -       +      -
    221K  PHE*     3.7    29.4    -      -       +      -
    222K  ASN*     1.3    78.8    -      -       -      +
    224K  ILE*     1.3    74.6    +      -       -      +
    225K  PHE*     4.1     4.0    -      -       +      +
    242K  SER      3.7     1.0    -      -       -      +
    243K  LYS*     3.5     3.5    -      -       -      +
    244K  ILE*     2.8    52.8    +      -       +      +
    246K  LEU*     4.9     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 224 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141K  SER*     3.6     5.5    +      -       -      +
    142K  VAL*     3.7     0.3    -      -       -      -
    143K  GLU*     2.8    54.0    +      -       +      +
    144K  VAL*     6.0     0.7    -      -       -      -
    145K  SER*     6.4     1.6    -      -       -      -
    183K  LYS*     4.2    22.9    -      -       +      +
    222K  ASN*     5.3     5.2    -      -       +      +
    223K  ILE*     1.3    81.7    -      -       -      +
    225K  PHE*     1.3    59.8    +      -       -      +
    226K  THR*     3.7     7.3    +      -       -      +
    241K  VAL*     3.9    24.0    -      -       +      -
    242K  SER      3.7     1.3    -      -       -      -
    243K  LYS*     3.8    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 225 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85K  ALA*     4.4    19.3    -      -       +      -
     86K  PHE*     3.7    42.0    -      +       -      -
    126K  LEU*     4.0    11.4    -      -       +      -
    130K  ILE*     3.7    15.9    -      -       +      -
    140K  TYR*     3.4    38.8    -      +       +      -
    141K  SER      3.7     7.2    -      -       -      -
    142K  VAL*     4.2     8.1    -      -       +      +
    223K  ILE*     3.8    13.2    -      -       +      -
    224K  ILE*     1.3    71.1    -      -       -      +
    226K  THR*     1.3    66.2    +      -       -      +
    227K  GLN*     3.7    21.7    +      -       +      +
    240K  LYS      3.5     2.3    -      -       -      +
    241K  VAL*     3.5     2.2    -      -       -      -
    242K  SER*     2.9    42.7    +      -       -      +
    244K  ILE*     4.4     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 226 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140K  TYR*     3.5     7.1    -      -       -      +
    141K  SER*     2.9    51.4    +      -       -      +
    143K  GLU*     4.9     3.3    +      -       -      -
    224K  ILE*     3.7     9.1    +      -       -      +
    225K  PHE*     1.3    73.1    -      -       -      +
    227K  GLN*     1.3    62.9    +      -       -      +
    228K  LYS*     4.0    18.0    +      -       +      +
    239K  GLU*     3.4    38.8    -      -       +      +
    240K  LYS      3.4     2.7    -      -       -      -
    241K  VAL*     3.6    17.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 227 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85K  ALA      3.7     7.1    +      -       -      -
     86K  PHE*     2.9    47.0    +      -       -      +
     88K  GLY*     4.6     1.0    -      -       -      +
    138K  MET*     4.1    16.8    -      -       +      +
    139K  SER      3.9     3.6    -      -       -      -
    140K  TYR*     3.6    24.4    +      -       +      -
    225K  PHE*     3.7    23.1    +      -       +      -
    226K  THR*     1.3    72.8    -      -       -      +
    228K  LYS*     1.3    61.1    +      -       -      +
    229K  ARG      4.1     0.6    +      -       -      -
    238K  THR      3.6     0.9    -      -       -      +
    239K  GLU*     3.3     6.9    -      -       -      +
    240K  LYS*     2.8    57.9    +      -       +      +
    242K  SER*     5.9     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 228 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137K  ASN      3.5     1.6    -      -       -      +
    138K  MET*     3.4     6.1    -      -       -      +
    139K  SER*     2.9    54.0    +      -       -      +
    140K  TYR*     5.7     1.8    -      -       -      -
    141K  SER*     4.5    14.7    +      -       -      -
    226K  THR*     4.0    14.5    -      -       +      +
    227K  GLN*     1.3    77.9    -      -       -      +
    229K  ARG*     1.3    60.4    +      -       -      +
    230K  HIS      3.9     0.6    +      -       -      -
    237K  THR*     3.7    17.5    -      -       +      -
    238K  THR      3.4     4.3    -      -       -      -
    239K  GLU*     2.9    32.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 229 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135K  ASN*     4.6    14.4    -      -       -      +
    137K  ASN*     3.4     4.6    -      -       -      +
    138K  MET*     3.3    25.1    -      -       +      +
    227K  GLN      4.1     1.0    -      -       -      -
    228K  LYS*     1.3    71.4    -      -       -      +
    230K  HIS*     1.3    71.8    +      -       -      +
    231K  ASP*     5.0    10.4    +      -       +      +
    236K  ILE      4.1     1.9    -      -       -      +
    237K  THR*     3.6     4.3    -      -       -      +
    238K  THR*     3.0    44.4    +      -       -      +
----------------------------------------------------------
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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