Contacts of the strand formed by residues 251 - 255 (chain 3) in PDB entry 5KZ5


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 LEU 251 (chain 3).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1343  ALA*     3.7    29.2    -      -       +      -
    1383  VAL*     3.9    16.4    -      -       +      -
    2283  TYR*     3.5    43.3    -      -       +      +
    2293  PHE      3.0     9.9    +      -       -      +
    2303  HIS*     3.7    20.0    -      -       +      +
    2313  THR*     3.2    16.5    +      -       -      -
    2443  VAL*     5.2     0.4    -      -       -      -
    2493  ILE*     3.2    14.8    -      -       -      +
    2503  ASP*     1.4    83.1    -      -       -      +
    2523  MET*     1.3    59.4    +      -       -      +
    2683  ILE*     4.1     3.4    -      -       +      -
    2693  TYR      3.3     8.7    -      -       -      +
    2703  ILE*     3.6    18.4    -      -       +      -
    2783  VAL*     3.9    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 252 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1143  ILE*     3.8    17.7    -      -       +      -
    2043  THR*     4.4     1.6    -      -       +      +
    2313  THR*     3.7     5.6    -      -       -      +
    2333  ALA*     3.6    21.1    -      -       +      -
    2423  LEU*     3.9    32.3    -      -       +      -
    2433  ASP      3.5    19.5    -      -       -      +
    2443  VAL*     3.7    27.8    -      -       +      +
    2473  MET*     4.8     1.3    -      -       +      -
    2493  ILE*     3.8    23.3    -      -       +      -
    2513  LEU*     1.3    75.9    -      -       -      +
    2533  SER*     1.4    72.3    +      -       -      +
    2543  ILE*     5.5     1.3    -      -       +      -
    2683  ILE*     3.5     7.9    -      -       -      -
    2693  TYR*     3.1    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 253 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1273  ALA*     4.1     3.8    -      -       -      -
    1303  SER*     3.2    32.5    +      -       -      -
    1313  ASN*     4.0     1.7    +      -       -      -
    2303  HIS*     3.9    14.9    +      -       -      -
    2313  THR      3.6     4.8    +      -       -      -
    2323  ASP*     3.4    24.5    +      -       -      -
    2333  ALA*     3.2    27.7    +      -       -      +
    2343  ALA*     3.7     7.7    -      -       -      +
    2523  MET*     1.4    76.0    -      -       -      +
    2543  ILE*     1.3    62.3    +      -       -      +
    2673  ALA      3.7     4.9    -      -       -      -
    2683  ILE*     4.7     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 254 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1103  VAL*     6.5     0.7    -      -       +      -
    1143  ILE*     5.1    16.6    -      -       +      -
    1243  THR*     4.3     2.6    +      -       -      -
    1263  GLY      5.4     0.5    -      -       -      +
    1303  SER*     4.8     1.4    +      -       -      -
    2333  ALA      4.4     1.8    -      -       -      +
    2343  ALA*     4.0     6.3    -      -       -      +
    2373  VAL*     3.9    29.4    -      -       +      -
    2423  LEU*     4.8    12.1    -      -       +      -
    2523  MET*     5.5     2.5    -      -       +      -
    2533  SER*     1.3    76.7    +      -       -      +
    2553  SER*     1.4    66.8    +      -       -      +
    2663  GLY*     3.2    17.0    -      -       -      -
    2673  ALA*     3.2    27.9    +      -       +      +
    2693  TYR*     3.8    23.1    -      -       +      +
    3043  LEU*     4.5    23.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 255 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1253  SER      4.0     4.7    +      -       -      -
    1263  GLY*     3.6    24.7    +      -       -      +
    1273  ALA*     4.0    10.9    +      -       -      -
    2343  ALA*     3.7    27.3    -      -       -      +
    2373  VAL*     3.6    24.6    -      -       -      +
    2543  ILE*     1.4    75.8    -      -       -      +
    2563  GLY*     1.4    64.3    +      -       -      +
    2573  HIS*     3.3    16.5    +      -       -      +
    2593  ILE*     4.2     1.9    -      -       -      +
    2653  VAL      3.6     9.6    -      -       -      -
    2663  GLY*     4.3     1.8    -      -       -      -
    3043  LEU*     5.3     0.8    -      -       -      +
----------------------------------------------------------
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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