Contacts of the helix formed by residues 45 - 59 (chain M) in PDB entry 6K4Y


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 GLY 45 (chain M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38M  ARG*     5.2     0.2    -      -       -      -
     43M  ASP      4.1     1.2    +      -       -      -
     44M  LEU*     1.3    77.6    -      -       -      +
     46M  ASN*     1.3    61.7    +      -       -      -
     47M  ALA      3.5     2.2    -      -       -      -
     48M  VAL*     3.4    21.5    -      -       -      +
     49M  VAL*     3.0    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 46 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38M  ARG*     3.3    31.2    +      -       -      +
     44M  LEU      5.3     0.5    -      -       -      +
     45M  GLY*     1.3    72.5    -      -       -      +
     47M  ALA*     1.3    56.2    +      -       -      +
     49M  VAL*     3.5     3.1    +      -       -      +
     50M  ASN*     2.7    41.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 47 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46M  ASN*     1.3    75.5    -      -       -      +
     48M  VAL*     1.3    56.1    +      -       +      +
     50M  ASN*     3.8    11.8    -      -       +      +
     51M  SER*     2.3    39.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 48 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18M  LYS*     3.9    18.2    -      -       +      -
     44M  LEU*     3.9    29.2    -      -       +      -
     45M  GLY*     3.3    24.9    +      -       -      +
     46M  ASN      3.2     0.8    -      -       -      -
     47M  ALA*     1.3    77.4    -      -       +      +
     49M  VAL*     1.3    61.3    +      -       -      +
     51M  SER*     3.2     5.8    +      -       -      -
     52M  ASN*     2.8    35.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 49 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22M  ILE*     4.1    13.0    -      -       +      -
     34M  ALA      4.8     0.7    -      -       -      +
     37M  VAL*     3.7    24.7    -      -       +      -
     38M  ARG*     3.7    33.4    -      -       +      +
     41M  HIS*     4.3    12.1    -      -       +      -
     44M  LEU*     3.7    20.4    -      -       +      +
     45M  GLY      3.0    20.3    +      -       -      +
     46M  ASN      3.8     0.7    -      -       -      +
     48M  VAL*     1.3    73.7    -      -       -      +
     50M  ASN*     1.3    58.6    +      -       -      +
     52M  ASN*     3.1     8.8    +      -       -      +
     53M  ILE*     2.9    45.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 50 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34M  ALA*     4.9     1.6    -      -       -      +
     38M  ARG*     3.4    25.7    +      -       -      +
     46M  ASN*     2.7    33.0    +      -       -      +
     47M  ALA*     3.8    10.5    -      -       +      +
     49M  VAL*     1.3    76.2    -      -       -      +
     51M  SER*     1.3    56.9    +      -       -      +
     53M  ILE*     3.8    13.5    -      -       -      +
     54M  GLY*     2.9    22.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 51 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47M  ALA*     2.3    30.2    +      -       -      +
     48M  VAL*     3.2     9.6    +      -       -      -
     50M  ASN*     1.3    75.5    -      -       -      +
     52M  ASN*     1.3    61.6    +      -       -      +
     54M  GLY*     3.0     4.5    +      -       -      -
     55M  VAL*     2.9    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 52 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16M  ASN*     3.9     7.6    +      -       -      +
     18M  LYS*     3.4    30.3    -      -       -      +
     19M  THR*     3.6    32.5    +      -       -      +
     22M  ILE*     3.4    22.8    -      -       +      +
     44M  LEU*     4.0     0.4    -      -       -      +
     48M  VAL*     2.8    32.4    +      -       -      +
     49M  VAL      3.1     5.1    +      -       -      +
     51M  SER*     1.3    73.1    -      -       -      +
     53M  ILE*     1.3    62.3    +      -       -      +
     55M  VAL*     3.0    14.0    +      -       -      +
     56M  LEU*     3.0    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 53 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22M  ILE*     4.4    14.1    -      -       +      -
     26M  ILE*     4.7     9.0    -      -       +      -
     34M  ALA*     4.2    22.4    -      -       +      -
     37M  VAL*     4.9     6.5    -      -       +      -
     49M  VAL*     2.9    38.1    +      -       +      +
     50M  ASN*     3.8    11.9    -      -       -      +
     52M  ASN*     1.3    75.7    -      -       -      +
     54M  GLY*     1.3    58.0    +      -       -      +
     56M  LEU*     4.3     5.6    -      -       -      +
     57M  ILE*     2.8    54.5    +      -       +      +
     62M  VAL*     5.2     5.6    -      -       +      -
     64M  LYS*     6.1     0.2    -      -       +      -
     69M  LEU*     4.5    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 54 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50M  ASN      2.9    17.6    +      -       -      -
     51M  SER*     3.0     7.7    +      -       -      -
     53M  ILE*     1.3    77.9    -      -       -      +
     55M  VAL*     1.3    50.0    +      -       -      +
     57M  ILE*     4.3     5.7    -      -       -      +
     58M  LYS*     2.7    36.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 55 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14M  VAL      5.0     1.3    -      -       -      +
     15M  LEU*     4.3    12.6    -      -       +      -
     19M  THR*     5.0     6.7    -      -       +      +
     51M  SER*     2.9    19.1    +      -       -      +
     52M  ASN*     3.0    16.3    +      -       -      +
     54M  GLY*     1.3    76.5    -      -       -      +
     56M  LEU*     1.3    55.0    +      -       -      +
     58M  LYS*     3.3    21.7    -      -       -      +
     59M  LYS*     2.6    61.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 56 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15M  LEU*     4.4    17.5    -      -       +      -
     19M  THR*     3.3    31.0    -      -       -      +
     22M  ILE*     4.8     3.8    -      -       +      -
     23M  LEU*     3.8    26.0    -      -       +      +
     26M  ILE*     4.0    15.0    -      -       +      -
     52M  ASN      3.0    12.5    +      -       -      +
     53M  ILE*     3.4     5.1    +      -       -      +
     55M  VAL*     1.3    72.3    -      -       +      +
     57M  ILE*     1.3    55.9    +      -       -      +
     59M  LYS*     3.4     3.0    -      -       +      -
     60M  GLY      2.7    10.7    +      -       -      -
     61M  LEU*     2.7    52.5    +      -       +      -
     62M  VAL*     3.5    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 57 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53M  ILE*     2.8    40.2    +      -       +      +
     54M  GLY*     4.3     4.9    -      -       -      +
     56M  LEU*     1.3    73.0    -      -       -      +
     58M  LYS*     1.3    62.4    +      -       -      +
     60M  GLY*     2.8    18.0    +      -       -      +
     62M  VAL*     3.3    20.6    -      -       +      +
     63M  GLU*     4.7     5.2    -      -       +      -
     64M  LYS*     5.0    19.3    -      -       +      -
     69M  LEU*     5.6     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 58 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54M  GLY      2.7    23.3    +      -       -      +
     55M  VAL*     3.3    25.5    -      -       -      +
     57M  ILE*     1.3    78.6    -      -       -      +
     59M  LYS*     1.3    91.5    +      -       +      +
     60M  GLY      3.5     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 59 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14M  VAL*     3.3    48.5    +      -       +      +
     15M  LEU*     3.7    16.2    -      -       +      -
     55M  VAL*     2.6    30.0    +      -       -      +
     56M  LEU*     3.9     4.5    -      -       +      +
     58M  LYS*     1.3    99.8    -      -       +      +
     60M  GLY*     1.3    61.5    +      -       -      +
     61M  LEU*     3.3    26.4    +      -       +      +
----------------------------------------------------------
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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