Contacts of the helix formed by residues 9 - 23 (chain 4) in PDB entry 1LMB


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 GLN 9 (chain 4).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      84  THR*     1.3    76.8    -      -       -      +
     104  GLU*     1.3    63.4    +      -       -      +
     124  LEU*     3.2    12.7    +      -       +      +
     134  GLU*     3.1    36.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 10 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      84  THR*     3.0     8.8    +      -       -      +
      94  GLN*     1.3    80.0    -      -       -      +
     114  GLN*     1.3    70.1    +      -       +      +
     134  GLU*     3.3    10.3    +      -       +      +
     144  ASP*     3.1    30.7    +      -       -      +
     174  ARG*     4.4     2.9    +      -       -      +
     794  SER*     3.7    32.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 11 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      64  PRO      4.7     0.7    -      -       -      +
      74  LEU*     3.3    29.1    -      -       +      +
      84  THR*     2.8    42.9    +      -       -      +
     104  GLU*     1.3    79.6    -      -       +      +
     124  LEU*     1.4    57.9    +      -       -      +
     144  ASP*     3.4    13.1    -      -       -      +
     154  ALA*     3.1    27.0    +      -       -      +
     564  ALA*     3.7    25.2    -      -       +      +
     574  LEU*     5.1     4.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 12 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      74  LEU*     4.1    17.5    -      -       +      +
      84  THR      3.2    19.2    +      -       -      +
      94  GLN*     3.6    12.8    -      -       +      +
     104  GLU      3.1     0.8    -      -       -      -
     114  GLN*     1.4    75.6    -      -       -      +
     134  GLU*     1.3    65.2    +      -       +      +
     154  ALA*     3.5     5.1    +      -       -      +
     164  ARG*     3.2    21.7    +      -       -      +
     524  ASN      5.3     1.3    -      -       -      +
     534  GLY*     3.8    31.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 13 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      94  GLN*     3.1    30.6    +      -       +      +
     104  GLU*     3.3    10.2    +      -       +      +
     124  LEU*     1.3    78.1    -      -       +      +
     144  ASP*     1.4    54.6    +      -       -      +
     164  ARG*     3.2     7.7    +      -       +      +
     174  ARG*     2.8    66.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 14 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     104  GLU*     3.1    17.4    +      -       -      +
     114  GLN*     3.4    16.9    -      -       -      +
     134  GLU*     1.4    78.9    -      -       -      +
     154  ALA*     1.3    55.8    +      -       -      +
     174  ARG*     2.7    31.2    +      -       -      +
     184  LEU*     2.9    29.9    +      -       -      +
     574  LEU*     4.4    11.6    -      -       +      +
     764  PHE*     3.2    16.0    -      -       -      +
     774  SER*     2.8    34.9    +      -       -      -
     784  PRO*     4.4     1.0    -      -       -      +
     794  SER*     3.8    10.7    +      -       -      -
     804  ILE*     4.7     6.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 15 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      74  LEU*     5.1     1.6    -      -       +      -
     114  GLN      3.1    15.7    +      -       -      +
     124  LEU      3.8     5.6    -      -       -      +
     144  ASP*     1.3    75.3    -      -       -      +
     164  ARG*     1.4    59.0    +      -       -      +
     184  LEU*     3.4     8.6    +      -       -      +
     194  LYS*     3.0    24.3    +      -       -      +
     504  LEU      3.5    23.1    -      -       -      +
     514  PHE      3.4    12.4    -      -       -      +
     534  GLY*     3.8    23.3    -      -       -      +
     554  ASN      5.9     0.2    -      -       -      +
     574  LEU*     5.1     3.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 16 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     124  LEU      3.2    12.2    +      -       -      +
     134  GLU*     3.2    11.9    +      -       +      +
     154  ALA*     1.4    71.9    -      -       -      +
     174  ARG*     1.4    67.7    +      -       +      +
     194  LYS*     3.5     7.1    +      -       +      +
     204  ALA*     3.1    25.6    +      -       -      +
     514  PHE      5.2     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 17 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     104  GLU*     4.4     4.4    +      -       -      +
     134  GLU*     2.8    41.9    +      -       -      +
     144  ASP*     2.7    39.3    +      -       -      +
     164  ARG*     1.4    78.0    -      -       +      +
     184  LEU*     1.3    62.5    +      -       -      +
     204  ALA*     3.2     8.2    +      -       -      +
     214  ILE*     3.2    25.3    +      -       +      +
     754  GLU      4.1    13.7    -      -       -      +
     764  PHE*     2.9    30.9    +      -       +      -
     784  PRO*     4.4    12.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 18 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     144  ASP      2.9    19.8    +      -       -      +
     154  ALA*     3.7     4.0    -      -       -      +
     174  ARG*     1.3    73.1    -      -       -      +
     194  LYS*     1.3    63.1    +      -       -      +
     214  ILE*     3.3     6.9    +      -       +      +
     224  TYR*     3.1    19.6    +      -       -      +
     504  LEU*     4.6    11.7    -      -       +      +
     514  PHE*     3.8    29.6    -      -       +      -
     574  LEU*     4.0    20.2    -      -       +      -
     654  LEU*     3.9    22.4    -      -       +      -
     694  LEU*     3.7    26.0    -      -       +      -
     764  PHE*     3.7    34.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 19 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     242    A      2.6    34.9    +      -       -      -
     154  ALA      3.0    18.7    +      -       -      +
     164  ARG*     3.9     7.4    -      -       +      +
     184  LEU*     1.3    76.7    -      -       -      +
     204  ALA*     1.3    58.0    +      -       -      +
     224  TYR*     3.4     8.2    +      -       +      +
     234  GLU*     2.9    52.6    +      -       +      +
     334  GLN*     5.6     0.2    -      -       -      +
     514  PHE*     3.8    38.3    +      -       +      +
     524  ASN*     2.8    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 20 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     164  ARG*     3.1    20.3    +      -       -      +
     174  ARG*     3.2     6.9    +      -       -      +
     194  LYS*     1.3    74.1    -      -       -      +
     214  ILE*     1.3    61.2    +      -       +      +
     234  GLU*     3.4     7.6    +      -       -      +
     244  LYS*     2.9    49.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 21 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     174  ARG      3.2    13.6    +      -       -      +
     184  LEU*     3.5     7.2    -      -       -      +
     204  ALA*     1.3    75.3    -      -       +      +
     224  TYR*     1.3    59.2    +      -       -      +
     244  LYS*     3.2    15.3    +      -       +      +
     254  LYS*     2.9    49.9    +      -       +      +
     694  LEU*     4.2    19.5    -      -       +      -
     714  VAL*     4.1    19.5    -      -       +      -
     754  GLU*     4.1    38.1    -      -       +      +
     764  PHE*     4.4    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 22 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     232    T      2.7    28.6    +      -       -      -
     184  LEU      3.1    10.8    +      -       -      +
     194  LYS*     3.6     9.6    -      -       +      +
     204  ALA      3.2     0.2    -      -       -      -
     214  ILE*     1.3    77.2    -      -       -      +
     234  GLU*     1.3    76.6    +      -       -      +
     264  LYS*     2.8    57.5    +      -       +      +
     314  LEU*     4.0    13.2    -      -       +      -
     324  SER*     3.3     6.9    -      -       -      -
     334  GLN*     3.1    29.0    +      -       +      -
     364  VAL*     4.1    12.8    -      -       +      -
     514  PHE*     3.5    39.9    -      +       +      -
     694  LEU*     4.2    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 23 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     232    T      5.4     6.3    +      -       -      +
     242    A      4.7     3.3    +      -       -      -
     194  LYS*     2.9    50.5    +      -       +      +
     204  ALA*     3.7     8.5    -      -       -      +
     214  ILE      3.3     0.2    -      -       -      -
     224  TYR*     1.3    94.9    -      -       -      +
     244  LYS*     1.3    62.3    +      -       +      +
     254  LYS      3.2     0.5    +      -       -      -
     264  LYS*     3.6    31.5    +      -       -      +
     274  ASN*     4.8     2.6    +      -       -      +
     334  GLN*     5.6     1.2    +      -       -      -
----------------------------------------------------------
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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