Contacts of the strand formed by residues 243 - 254 (chain A) in PDB entry 1PO3


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 243 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  THR*     5.9     1.8    -      -       +      -
    142A  ASP*     2.8    32.5    +      -       -      +
    230A  GLU      3.4     4.9    -      -       -      +
    231A  GLY*     3.8     0.8    -      -       -      -
    232A  GLN*     3.2    55.2    +      -       +      +
    242A  PRO*     1.3    75.7    -      -       -      +
    244A  GLU*     1.3    68.3    +      -       -      +
    245A  THR*     4.6     4.7    -      -       +      -
    267A  THR*     4.1    14.1    -      -       +      -
    268A  ARG      3.8     2.9    -      -       -      -
    269A  GLY*     3.8    23.6    +      -       -      -
    270A  SER*     3.6    13.2    +      -       -      +
    271A  ASP*     3.9    30.3    +      -       +      +
    276A  SER      4.6     1.6    +      -       -      -
    278A  THR*     4.2     5.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  VAL*     4.2     9.6    -      -       +      +
    230A  GLU      3.3     8.1    -      -       -      +
    231A  GLY*     4.5     3.8    -      -       -      -
    242A  PRO*     3.9     4.6    +      -       +      -
    243A  LYS*     1.3    75.1    -      -       -      +
    245A  THR*     1.3    72.9    +      -       -      +
    246A  HIS*     2.4    47.5    +      -       -      +
    266A  GLY      3.6     2.1    -      -       -      +
    267A  THR*     3.5     1.2    -      -       -      +
    268A  ARG*     2.7    53.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  THR*     3.0    37.2    +      -       +      +
    119A  THR*     5.7     2.2    -      -       +      -
    229A  VAL*     3.0    20.0    -      -       -      +
    230A  GLU*     3.1    22.5    +      -       -      +
    232A  GLN*     4.8     1.1    +      -       -      +
    243A  LYS*     4.6     9.6    -      -       +      -
    244A  GLU*     1.3    86.9    +      -       -      +
    246A  HIS*     1.3    67.9    +      -       -      +
    266A  GLY      3.5     4.7    -      -       -      -
    267A  THR*     3.6    24.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  GLY      3.1    13.9    -      -       -      +
    229A  VAL*     4.3     6.5    -      -       +      +
    244A  GLU*     2.4    45.8    +      -       -      +
    245A  THR*     1.3    77.6    -      -       -      +
    247A  ASN*     1.3    62.5    +      -       -      +
    248A  LEU*     6.3     0.2    -      -       +      -
    264A  TYR*     3.5    37.3    +      +       -      -
    265A  SER*     3.3     5.4    +      -       -      -
    266A  GLY      2.9    42.4    +      -       -      -
    268A  ARG*     4.3    14.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  ARG*     3.8    22.4    -      -       -      +
    187A  GLY*     3.6    32.1    +      -       -      +
    217A  ARG*     4.1    13.9    -      -       -      +
    226A  GLU*     5.5     0.6    -      -       -      +
    227A  ALA*     3.2     8.3    -      -       -      +
    228A  GLY*     2.9    51.7    +      -       -      +
    246A  HIS*     1.3    78.0    -      -       -      +
    248A  LEU*     1.3    61.6    +      -       -      +
    264A  TYR*     3.0    12.8    -      -       -      +
    265A  SER*     4.2     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  ARG*     5.3     2.7    -      -       -      -
    225A  ILE*     4.7     6.5    -      -       +      -
    226A  GLU      3.5    16.2    -      -       -      +
    227A  ALA*     3.8    15.3    -      -       +      -
    246A  HIS*     6.3     0.2    -      -       +      -
    247A  ASN*     1.3    75.8    -      -       -      +
    249A  MET*     1.3    60.8    +      -       -      +
    250A  VAL*     4.6    19.5    -      -       +      -
    262A  LEU*     3.6     9.7    -      -       +      +
    263A  LEU*     3.9     1.7    -      -       -      +
    264A  TYR*     2.7    58.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  ARG*     4.6    11.4    -      -       -      +
    220A  PRO*     6.4     0.9    -      -       -      -
    224A  GLY      4.3     0.7    -      -       -      -
    225A  ILE*     2.9     9.9    -      -       -      +
    226A  GLU*     2.7    41.5    +      -       -      +
    248A  LEU*     1.3    75.1    -      -       -      +
    250A  VAL*     1.3    65.2    +      -       -      +
    262A  LEU      3.7     4.3    -      -       -      -
    263A  LEU*     4.8     8.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  PRO*     5.5     0.9    -      -       -      -
    223A  PHE*     4.6    10.8    -      -       +      -
    224A  GLY      3.4     4.7    -      -       -      +
    225A  ILE*     3.5    31.4    -      -       +      -
    248A  LEU*     4.6    15.9    -      -       +      -
    249A  MET*     1.3    79.7    -      -       -      +
    251A  GLY*     1.3    60.1    +      -       -      +
    260A  THR*     5.7     0.2    -      -       -      +
    261A  ALA*     4.2     2.4    -      -       -      +
    262A  LEU*     2.6    52.7    +      -       +      +
    263A  LEU*     5.6     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  PRO*     3.8    13.2    -      -       -      +
    223A  PHE*     3.6     8.3    -      -       -      -
    224A  GLY      3.1    31.1    +      -       -      +
    250A  VAL*     1.3    81.1    -      -       -      +
    252A  GLY*     1.3    58.8    +      -       -      -
    260A  THR      2.8    14.6    -      -       -      -
    261A  ALA*     3.7     3.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  ILE*     3.8     0.8    -      -       -      +
    220A  PRO*     3.5    11.2    -      -       -      +
    222A  ASP      2.8    15.7    -      -       -      -
    223A  PHE*     4.2     4.5    -      -       -      -
    251A  GLY*     1.3    75.3    -      -       -      -
    253A  THR*     1.3    61.6    +      -       -      -
    259A  GLY*     3.0     1.4    -      -       -      -
    260A  THR      2.6    37.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  ILE*     4.0     4.9    -      -       +      +
    220A  PRO      2.7    12.3    +      -       -      -
    221A  GLN*     2.3    36.5    +      -       -      +
    222A  ASP*     2.8    19.6    +      -       -      +
    252A  GLY*     1.3    71.6    -      -       -      -
    254A  ALA*     1.3    69.0    +      -       -      +
    255A  ASP      3.8     0.2    +      -       -      -
    257A  GLY*     4.4     4.5    -      -       -      +
    258A  PHE*     2.7    31.6    -      -       -      +
    259A  GLY*     3.3     6.5    -      -       -      +
    288A  LYS*     5.3     5.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  ASP*     5.2     0.7    -      -       -      -
    252A  GLY      4.4     0.4    -      -       -      -
    253A  THR*     1.3    78.1    -      -       -      +
    255A  ASP*     1.3    62.9    +      -       -      +
    256A  ASN*     2.9    28.3    +      -       +      +
    257A  GLY*     3.1    12.1    +      -       -      -
    258A  PHE*     2.7    15.1    +      -       +      +
----------------------------------------------------------
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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