Contacts of the helix formed by residues 44 - 57 (chain K) in PDB entry 6L49


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 44 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178J    G      3.4     2.9    +      -       -      -
    179J    T      3.1    15.0    +      -       -      -
     42K  ARG      3.1     1.4    +      -       -      -
     43K  PRO*     1.3    74.4    -      -       -      +
     45K  THR*     1.3    60.0    +      -       -      +
     47K  ALA*     3.7     5.9    -      -       -      +
     48K  LEU*     3.3    31.0    +      -       -      +
     44L  LYS*     4.0    22.7    -      -       -      +
    115Q  LEU      5.2     1.1    -      -       -      +
    117Q  PRO*     5.4     9.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 45 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   -100I    G      3.7    28.7    +      -       -      -
    -99I    A      3.3    25.8    -      -       -      +
     41K  TYR*     3.8     9.9    -      -       +      -
     42K  ARG*     3.4    21.7    -      -       +      +
     44K  GLY*     1.3    74.3    -      -       -      +
     46K  VAL*     1.3    63.1    +      -       -      +
     47K  ALA      3.2     1.3    -      -       -      -
     48K  LEU*     3.4     9.5    +      -       -      +
     49K  ARG*     2.9    35.7    +      -       -      +
     52K  ARG*     4.9     2.9    +      -       -      -
    117Q  PRO*     5.3    10.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 46 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179J    T      3.1    27.0    +      -       +      +
    180J    G      3.7    22.2    -      -       -      +
     41K  TYR*     3.7    27.1    -      -       +      -
     42K  ARG      4.5     0.2    +      -       -      -
     45K  THR*     1.3    75.7    -      -       -      +
     47K  ALA*     1.3    57.9    +      -       -      +
     49K  ARG*     3.3    31.2    +      -       +      +
     50K  GLU*     2.9    47.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 47 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178J    G      4.7     1.3    -      -       -      +
    179J    T      2.6    20.4    +      -       -      +
     44K  GLY*     3.7    11.4    -      -       -      +
     46K  VAL*     1.3    74.3    -      -       -      +
     48K  LEU*     1.3    57.3    +      -       +      +
     50K  GLU*     3.3     2.3    +      -       -      -
     51K  ILE*     2.9    34.1    +      -       +      +
     39L  ARG*     3.4    40.2    -      -       -      +
     44L  LYS*     4.3    16.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 48 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44K  GLY      3.3    16.1    +      -       -      +
     45K  THR*     3.8     8.1    -      -       -      +
     46K  VAL      3.3     0.4    -      -       -      -
     47K  ALA*     1.3    76.0    -      -       +      +
     49K  ARG*     1.3    61.0    +      -       -      +
     51K  ILE*     3.2    24.0    +      -       +      +
     52K  ARG*     2.9    54.7    +      -       -      +
     44L  LYS*     5.7     3.1    -      -       +      -
    111Q  ILE*     3.8    25.3    -      -       +      +
    115Q  LEU*     4.2    17.3    -      -       +      +
    116Q  LEU*     3.9    17.3    -      -       +      -
    117Q  PRO*     3.8    30.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 49 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   -100I    G      5.6     1.2    -      -       -      -
    103J    T      3.9    16.7    +      -       -      -
    104J    G      3.7    39.4    +      -       -      -
    105J    T      4.6     2.2    +      -       -      +
    180J    G      5.0     1.0    +      -       -      -
     41K  TYR*     3.3    46.8    +      -       -      -
     45K  THR*     2.9    25.5    +      -       -      +
     46K  VAL*     3.5    25.5    -      -       -      +
     47K  ALA      3.3     0.2    -      -       -      -
     48K  LEU*     1.3    77.5    -      -       -      +
     50K  GLU*     1.3    57.2    +      -       +      +
     52K  ARG*     3.4    18.1    +      -       +      +
     53K  ARG*     2.9    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 50 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179J    T      5.0     1.9    +      -       -      -
     46K  VAL*     2.9    34.6    +      -       +      +
     47K  ALA*     3.6     4.7    -      -       -      +
     48K  LEU      3.3     0.2    -      -       -      -
     49K  ARG*     1.3    74.1    -      -       +      +
     51K  ILE*     1.3    59.7    +      -       -      +
     53K  ARG*     4.1    13.0    -      -       -      +
     54K  TYR*     2.9    56.4    +      -       +      +
     35L  ARG*     4.6    12.7    -      -       -      +
     36L  ARG*     5.8     1.6    -      -       -      +
     39L  ARG*     3.5    32.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 51 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47K  ALA      2.9    16.3    +      -       -      +
     48K  LEU*     3.2    30.5    +      -       +      +
     50K  GLU*     1.3    76.3    -      -       -      +
     52K  ARG*     1.3    57.5    +      -       -      +
     54K  TYR*     3.5     0.7    +      -       -      +
     55K  GLN*     2.9    61.6    +      -       -      +
     39L  ARG*     3.3    34.1    -      -       -      +
     42L  GLY*     4.3    20.4    -      -       -      -
     43L  VAL      4.5     5.4    -      -       -      +
     44L  LYS*     5.2     3.8    -      -       -      +
    110Q  ASN      4.4     1.8    -      -       -      +
    111Q  ILE*     3.8    23.8    -      -       +      -
    115Q  LEU*     5.6     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 52 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   -100I    G      4.6    14.5    +      -       -      -
    105J    T      5.7     0.7    -      -       -      -
     45K  THR*     4.9     3.2    +      -       -      -
     48K  LEU*     2.9    50.1    +      -       -      +
     49K  ARG*     3.7    26.1    -      -       +      +
     51K  ILE*     1.3    75.7    -      -       -      +
     53K  ARG*     1.3    57.5    +      -       -      +
     55K  GLN*     4.2     5.6    -      -       -      +
     56K  LYS*     2.9    52.8    +      -       +      +
    111Q  ILE*     4.3    20.7    -      -       +      +
    116Q  LEU*     5.5     4.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 53 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   -184I    A      5.7     3.8    +      -       -      -
    104J    G      5.6     6.0    +      -       -      -
    105J    T      3.3    52.7    +      -       -      +
     49K  ARG      2.9    16.3    +      -       -      +
     50K  GLU*     3.6    12.5    -      -       -      +
     51K  ILE      3.3     0.4    -      -       -      -
     52K  ARG*     1.3    77.5    -      -       -      +
     54K  TYR*     1.3    96.6    +      -       +      +
     56K  LYS*     4.0     1.5    -      -       -      +
     57K  SER*     3.2    31.8    +      -       -      -
     59K  GLU*     5.0     6.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 54 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50K  GLU*     2.9    41.5    +      -       +      +
     51K  ILE      3.8     1.6    -      -       -      +
     53K  ARG*     1.3   120.8    +      -       +      +
     55K  GLN*     1.3    58.5    +      -       -      +
     57K  SER*     3.5     8.2    -      -       -      +
     59K  GLU*     3.7    18.6    -      -       +      -
     61K  LEU*     3.7    14.1    -      -       +      -
     36L  ARG*     3.3    46.0    -      -       +      +
     39L  ARG*     3.8    15.3    -      -       +      -
     40L  ARG*     3.1    50.8    +      -       +      +
    107Q  VAL*     5.7     1.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 55 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51K  ILE*     2.9    38.1    +      -       +      +
     52K  ARG*     4.2     5.1    +      -       -      +
     54K  TYR*     1.3    80.3    -      -       -      +
     56K  LYS*     1.3    62.7    +      -       +      +
     57K  SER      3.5     3.9    -      -       -      +
     39L  ARG      4.6     4.2    +      -       -      +
     40L  ARG*     4.1    20.8    +      -       +      +
     42L  GLY      5.1     3.2    -      -       -      +
     81Q  ARG*     3.8    20.4    +      -       -      -
    107Q  VAL*     4.0    15.5    -      -       +      +
    108Q  LEU      3.9     5.3    +      -       -      +
    109Q  PRO*     3.4    23.0    -      -       +      +
    110Q  ASN*     3.0    52.8    +      -       -      +
    111Q  ILE*     4.5     3.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 56 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105J    T      4.6    15.4    +      -       -      +
    106J    A      3.4    39.1    +      -       -      +
     52K  ARG*     2.9    34.6    +      -       -      +
     53K  ARG*     4.0     3.6    -      -       -      +
     55K  GLN*     1.3    79.8    -      -       -      +
     57K  SER*     1.3    59.3    +      -       -      +
     58K  THR*     5.3     0.9    -      -       -      +
     81Q  ARG*     4.9    12.3    +      -       -      +
    109Q  PRO*     5.6     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 57 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105J    T      6.0     1.7    -      -       -      -
    106J    A      5.3     2.9    +      -       -      -
     53K  ARG*     3.2    16.2    +      -       -      +
     54K  TYR*     3.5    17.7    -      -       -      +
     55K  GLN      4.0     3.8    -      -       -      +
     56K  LYS*     1.3    82.0    -      -       -      +
     58K  THR*     1.3    67.8    +      -       -      +
     59K  GLU*     3.7    18.4    -      -       -      -
     40L  ARG*     4.3     3.0    +      -       -      -
     81Q  ARG*     5.7     0.5    +      -       -      -
    106Q  GLY*     5.3     2.6    -      -       -      -
----------------------------------------------------------
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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