Contacts of the strand formed by residues 210 - 222 (chain A) in PDB entry 1SEK


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 THR 210 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193A  THR*     3.2     7.1    -      -       -      +
    194A  MET      2.8    35.7    +      -       -      +
    196A  ARG*     3.6    24.8    +      -       +      +
    197A  ASP      5.4     0.9    +      -       -      -
    208A  VAL*     2.9    22.7    +      -       -      +
    209A  PRO*     1.3    74.3    +      -       -      +
    211A  MET*     1.3    66.4    +      -       -      +
    212A  ILE*     3.8     5.0    +      -       -      +
    280A  TYR*     3.6    16.8    -      -       +      +
    281A  LEU      3.5    30.3    -      -       -      +
    282A  PRO*     3.8     5.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  TRP*     4.9     0.4    -      -       -      +
    188A  PHE*     3.6    27.6    -      -       +      -
    193A  THR*     3.7    11.7    -      -       -      +
    210A  THR*     1.3    73.6    -      -       -      +
    212A  ILE*     1.3    60.1    +      -       -      +
    279A  ILE      3.4     2.9    -      -       -      +
    280A  TYR*     3.4     3.3    -      -       -      -
    281A  LEU*     2.8    73.9    +      -       +      +
    282A  PRO      4.0     7.9    -      -       -      +
    283A  LYS*     3.6    23.3    -      -       +      -
    335A  VAL*     4.3     5.8    -      -       +      -
    336A  ASN*     3.3    40.2    -      -       -      +
    337A  GLU*     3.4    18.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188A  PHE*     3.6     9.0    -      -       -      +
    189A  ASN      4.5     6.6    +      -       -      -
    192A  ARG*     3.6    57.8    +      -       +      +
    194A  MET*     4.0    26.0    -      -       +      -
    196A  ARG*     4.1    13.5    -      -       -      +
    210A  THR      3.8     5.4    +      -       -      +
    211A  MET*     1.3    81.5    -      -       -      +
    213A  GLY*     1.3    58.5    -      -       -      +
    278A  GLU*     3.2    23.6    -      -       -      +
    279A  ILE      3.4     2.9    -      -       -      +
    280A  TYR*     3.7    32.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188A  PHE*     3.7    11.7    -      -       -      -
    192A  ARG*     5.1     9.0    -      -       -      -
    212A  ILE*     1.3    78.3    -      -       -      +
    214A  LYS*     1.3    63.4    +      -       -      -
    215A  LYS*     3.7    14.0    +      -       -      +
    278A  GLU*     3.6     8.5    -      -       -      -
    279A  ILE*     2.8    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186A  ASP*     4.5     4.5    -      -       -      +
    192A  ARG*     5.7     1.6    -      -       -      +
    213A  GLY*     1.3    69.1    -      -       -      -
    215A  LYS*     1.3    72.2    +      -       -      +
    276A  GLU*     3.5    31.5    -      -       -      +
    277A  VAL      3.3     7.6    -      -       -      +
    278A  GLU*     3.7    20.4    +      -       -      +
    356A  HIS*     4.6     8.6    +      -       -      -
    358A  VAL*     3.2    42.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  TRP*     6.0     1.8    -      -       +      -
    186A  ASP*     3.3    41.2    +      -       +      +
    187A  LYS      3.1    19.3    +      -       -      -
    188A  PHE*     3.6    44.2    -      -       +      +
    213A  GLY*     3.9    17.4    -      -       -      +
    214A  LYS*     1.3    81.9    +      -       -      +
    216A  ASP*     1.3    65.4    +      -       -      +
    217A  VAL*     3.4    19.5    +      -       +      +
    232A  MET*     5.0    10.1    -      -       +      -
    276A  GLU*     3.5     7.1    -      -       -      -
    277A  VAL      2.9    30.9    +      -       -      +
    279A  ILE*     5.1     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  LYS*     1.3    74.0    -      -       -      +
    217A  VAL*     1.3    62.7    +      -       -      +
    231A  GLU      5.0     0.2    -      -       -      +
    232A  MET*     5.3     3.5    -      -       -      +
    233A  SER*     5.5     2.4    +      -       -      -
    275A  THR      3.4     8.6    -      -       -      +
    276A  GLU*     3.1    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  LYS*     3.8    13.2    -      -       +      +
    216A  ASP*     1.3    80.6    -      -       -      +
    218A  ARG*     1.3    71.6    +      -       -      +
    219A  TYR*     4.4     7.0    -      -       +      -
    230A  ILE*     4.1    11.9    -      -       +      -
    231A  GLU      3.5     9.9    -      -       -      +
    232A  MET*     3.7    27.4    -      -       +      -
    274A  ASN*     3.6     6.1    -      -       -      +
    275A  THR*     2.9    36.0    +      -       +      +
    277A  VAL*     3.8    27.8    -      -       +      -
    279A  ILE*     4.1    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  VAL*     1.3    76.8    -      -       -      +
    219A  TYR*     1.3    59.6    +      -       -      +
    229A  MET      3.9     0.3    -      -       -      +
    230A  ILE*     3.4     5.2    -      -       -      +
    231A  GLU*     2.9    65.5    +      -       +      +
    269A  GLU      5.3     2.6    +      -       -      -
    272A  LEU*     3.9    36.7    +      -       +      +
    273A  TYR*     3.4     7.4    -      -       -      +
    274A  ASN*     3.6    36.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  VAL*     4.0     6.0    -      -       +      -
    218A  ARG*     1.3    75.8    -      -       -      +
    220A  ALA*     1.3    88.6    +      -       -      +
    221A  ASP*     4.0     8.1    -      -       +      +
    228A  LYS*     3.1    44.0    +      -       +      +
    229A  MET      3.4    16.2    -      -       -      -
    230A  ILE*     3.9    15.5    -      -       +      -
    272A  LEU*     4.0     1.8    -      -       -      -
    273A  TYR*     2.9    60.1    +      +       +      -
    275A  THR*     3.7    22.0    -      -       +      -
    277A  VAL*     4.9     5.8    -      -       +      -
    361A  VAL*     4.1    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  TYR*     1.3    93.4    -      -       -      +
    221A  ASP*     1.3    61.2    +      -       -      +
    222A  VAL*     3.7     5.0    -      -       +      +
    228A  LYS*     3.6     1.9    -      -       -      -
    229A  MET*     2.8    34.8    +      -       +      +
    268A  ALA      4.5     2.0    -      -       -      +
    271A  ARG*     3.6    30.3    -      -       +      +
    272A  LEU*     3.3    22.2    -      -       +      -
    273A  TYR*     4.5     4.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  TYR*     4.0    15.3    -      -       +      +
    220A  ALA*     1.3    73.6    -      -       -      +
    222A  VAL*     1.3    54.7    +      -       -      +
    223A  PRO*     3.6    18.1    -      -       -      +
    227A  ALA      4.0     7.4    -      -       -      +
    228A  LYS*     4.0    18.8    +      -       -      +
    247A  ASN*     4.8     9.0    +      -       -      +
    271A  ARG*     2.6    43.3    +      -       -      +
    273A  TYR*     5.5     0.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  ALA*     3.7    19.1    -      -       +      +
    221A  ASP*     1.3    78.7    -      -       -      +
    223A  PRO*     1.3    61.1    -      -       -      +
    224A  GLU*     4.4    10.1    -      -       +      +
    225A  LEU*     3.1    25.9    +      -       +      +
    226A  ASP      2.9    22.5    +      -       -      -
    227A  ALA*     2.9    22.7    +      -       +      +
    228A  LYS      4.9     0.2    -      -       -      -
    229A  MET*     4.1    18.4    -      -       +      +
    244A  ILE*     6.1     0.7    -      -       +      -
    247A  ASN*     6.0     0.4    -      -       -      -
    268A  ALA*     3.8    33.0    -      -       +      +
    271A  ARG*     4.0    10.8    -      -       -      +
----------------------------------------------------------
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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