Contacts of the strand formed by residues 197 - 213 (chain D) in PDB entry 2X1W


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 LYS 197 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186D  PHE*     3.4     2.5    -      -       -      -
    187D  GLU*     2.8    79.5    +      -       +      +
    189D  THR*     4.3    12.9    +      -       +      +
    194D  GLN*     5.5    10.1    -      -       +      +
    195D  GLY      3.1     6.8    +      -       -      +
    196D  PRO*     1.3    72.4    -      -       -      +
    198D  PRO*     1.3    71.5    -      -       +      +
    199D  VAL*     3.7    11.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 198 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184D  THR*     4.8     9.9    -      -       +      -
    185D  LEU      3.6     8.5    -      -       -      +
    186D  PHE*     4.0    22.2    -      -       +      -
    196D  PRO      4.2     3.1    -      -       -      +
    197D  LYS*     1.3    88.9    -      -       +      +
    199D  VAL*     1.3    66.8    +      -       -      +
    133L  HIS*     5.3     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 199 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152D  PHE*     4.4    18.6    -      -       +      -
    183D  LYS      3.8     0.2    -      -       -      +
    184D  THR*     3.5     4.1    -      -       -      +
    185D  LEU*     2.9    52.5    +      -       +      +
    187D  GLU*     4.2    20.0    -      -       +      +
    197D  LYS*     4.0    20.2    -      -       +      +
    198D  PRO*     1.3    81.9    -      -       -      +
    200D  THR*     1.3    64.6    +      -       -      +
    201D  ILE*     4.2    12.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with THR 200 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182D  SER*     4.0    26.0    -      -       -      +
    183D  LYS      3.3    13.5    -      -       -      +
    184D  THR*     3.7    17.2    +      -       -      +
    199D  VAL*     1.3    74.7    -      -       -      +
    201D  ILE*     1.3    70.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 201 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140D  VAL*     4.2    22.7    -      -       +      -
    144D  PHE*     3.2    37.9    -      -       +      -
    152D  PHE*     4.4    17.5    -      -       +      -
    182D  SER*     4.4     1.6    -      -       -      -
    183D  LYS      3.0    28.5    +      -       -      -
    185D  LEU*     4.5     5.4    -      -       +      -
    199D  VAL*     4.5    13.5    -      -       +      -
    200D  THR*     1.3    83.3    -      -       -      +
    202D  SER*     1.3    65.3    +      -       -      +
    203D  PHE*     3.3    21.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 202 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144D  PHE*     3.3    23.7    -      -       -      -
    180D  TYR*     4.2    27.2    -      -       -      +
    181D  LEU      3.2     8.6    +      -       -      -
    182D  SER*     3.5    19.2    +      -       -      -
    201D  ILE*     1.3    73.1    -      -       -      +
    203D  PHE*     1.3    60.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 203 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  ILE*     4.8     3.4    -      -       +      -
    140D  VAL*     3.7    35.7    -      -       +      -
    143D  GLU*     4.4    14.6    -      -       +      -
    144D  PHE*     3.5    25.4    -      +       -      -
    157D  VAL*     3.7    28.9    -      -       +      -
    159D  VAL*     4.1    18.8    -      -       +      -
    161D  ARG*     4.3     3.6    -      -       -      +
    180D  TYR*     3.3     7.0    -      -       -      -
    181D  LEU*     2.9    35.0    +      -       -      +
    183D  LYS*     4.1     9.2    -      -       +      -
    185D  LEU*     3.9    14.1    -      -       +      -
    201D  ILE*     3.3    39.7    -      -       +      -
    202D  SER*     1.3    74.5    -      -       -      +
    204D  ALA*     1.3    63.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 204 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143D  GLU*     4.7     2.1    +      -       -      +
    159D  VAL*     3.7     8.7    -      -       -      +
    161D  ARG*     2.9    39.7    +      -       -      +
    178D  THR*     4.0     8.3    -      -       -      +
    179D  SER      3.5     5.2    -      -       -      -
    180D  TYR*     3.7    17.6    -      -       +      -
    203D  PHE*     1.3    73.9    -      -       -      +
    205D  ASN*     1.3    59.0    +      -       -      +
    206D  HIS*     4.5     2.2    -      -       +      -
      1K  NAG      3.7    31.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 205 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159D  VAL*     3.8     4.4    -      -       +      -
    160D  TYR*     2.8    30.6    +      -       -      +
    178D  THR*     2.6    16.7    +      -       -      -
    179D  SER*     2.7    33.1    +      -       -      +
    181D  LEU*     3.7    26.2    -      -       +      +
    203D  PHE      3.6     0.2    +      -       -      -
    204D  ALA*     1.3    74.0    -      -       -      +
    206D  HIS*     1.3    61.7    +      -       -      +
    207D  THR*     3.5     7.4    +      -       -      +
      1P  NAG      1.5    60.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 206 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  PRO*     3.4    11.1    -      -       +      +
    160D  TYR*     2.9    16.2    +      -       -      +
    161D  ARG*     3.4    27.0    +      -       +      -
    162D  CYS*     2.9    44.1    +      -       +      +
    175D  ASN*     3.4    33.6    -      -       +      +
    177D  SER      3.9     1.3    -      -       -      -
    178D  THR*     3.5    14.8    -      -       -      -
    204D  ALA*     4.5     3.1    -      -       +      -
    205D  ASN*     1.3    69.6    -      -       -      +
    207D  THR*     1.3    54.3    +      -       -      +
    208D  SER      3.6     0.2    -      -       -      -
    209D  CYS*     4.8     0.4    -      -       -      -
      1K  NAG      3.2    30.9    +      -       -      -
      1P  NAG      2.6    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 207 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  PRO*     4.0     5.6    -      -       -      +
    177D  SER*     2.7    34.2    +      -       -      -
    178D  THR*     3.7     3.0    +      -       -      -
    179D  SER*     4.1    17.5    -      -       -      -
    205D  ASN*     3.5    13.2    +      -       -      +
    206D  HIS*     1.3    76.8    -      -       -      +
    208D  SER*     1.3    63.3    +      -       -      +
      1P  NAG      2.9    27.3    +      -       -      +
      2P  NAG      5.8     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 208 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  PRO*     4.1     5.3    -      -       -      +
    162D  CYS*     3.7     0.7    -      -       -      -
    175D  ASN*     3.3     7.3    -      -       -      +
    176D  THR*     2.7    47.6    +      -       -      -
    177D  SER*     2.6    27.7    +      -       -      -
    206D  HIS      3.6     1.0    -      -       -      -
    207D  THR*     1.3    81.5    -      -       -      +
    209D  CYS*     1.3    63.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 209 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  CYS*     3.4    23.5    -      -       -      +
    132D  MET*     3.4     9.2    -      -       -      -
    133D  PRO*     3.3    32.3    -      -       -      +
    162D  CYS*     2.0    46.4    -      -       -      -
    174D  MET      3.3     6.3    -      -       -      +
    176D  THR*     3.9     4.9    +      -       -      -
    208D  SER*     1.3    76.9    -      -       -      +
    210D  ARG*     1.3    65.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 210 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  CYS*     3.8     6.5    -      -       -      -
    174D  MET      3.0    25.7    +      -       -      +
    176D  THR*     3.4    29.5    -      -       +      +
    209D  CYS*     1.3    78.9    -      -       -      +
    211D  CYS*     1.3    74.3    +      -       -      +
    212D  MET*     3.2    35.0    +      -       -      +
    168O  LYS*     5.3    11.2    -      -       -      +
    194O  TYR*     6.6     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 211 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  CYS*     3.8    22.4    -      -       -      +
    165D  CYS      4.4     1.1    -      -       -      -
    166D  CYS*     2.0    56.8    -      -       +      -
    167D  ASN*     4.9     1.1    -      -       -      +
    171D  LEU*     4.2    13.7    -      -       +      +
    172D  GLN      3.4     5.4    -      -       -      -
    210D  ARG*     1.3    81.7    +      -       -      +
    212D  MET*     1.3    60.5    +      -       -      +
    194O  TYR*     5.5    14.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 212 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171D  LEU*     3.2     8.3    -      -       -      -
    172D  GLN*     2.7    38.4    +      -       -      +
    174D  MET*     3.6    38.2    -      -       +      +
    175D  ASN      5.3     3.4    -      -       -      +
    176D  THR*     4.3    11.9    -      -       -      -
    210D  ARG*     3.2    53.2    -      -       -      +
    211D  CYS*     1.3    71.7    -      -       -      +
    213D  SER*     1.3    71.3    +      -       -      +
    214D  LYS*     3.5     0.5    +      -       -      -
    215D  LEU*     6.6     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 213 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170D  GLY      3.6    10.3    -      -       -      -
    171D  LEU*     3.4    11.6    -      -       -      +
    174D  MET*     4.7     1.4    -      -       -      +
    212D  MET*     1.3    83.5    -      -       -      +
    214D  LYS*     1.3    65.1    -      -       -      +
    215D  LEU*     3.1    28.6    +      -       -      +
    284O  GLU*     6.0     5.6    -      -       -      -
----------------------------------------------------------
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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