Contacts of the strand formed by residues 27 - 34 (chain A) in PDB entry 1LL9


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 27 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  ILE*     6.0     0.4    -      -       -      -
     25A  ILE*     3.2    14.4    -      -       -      +
     26A  PRO*     1.3    76.7    -      -       -      +
     28A  MET*     1.3    61.9    +      -       -      +
     43A  TRP      3.3    11.2    -      -       -      -
     44A  GLY*     4.2     0.2    -      -       -      -
     45A  TYR      3.4    12.3    -      -       -      -
     54A  VAL*     3.7     6.7    -      -       -      -
     60A  PHE*     4.6     1.3    -      -       -      -
    340A  ALA*     3.4     0.5    -      -       -      -
    341A  ASN*     2.8    33.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 28 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  ILE*     4.1    15.9    -      -       +      -
     19A  LEU*     4.0     6.5    -      -       +      -
     20A  ILE*     4.2    11.0    -      -       +      -
     25A  ILE*     4.0    25.8    -      -       +      -
     27A  GLY*     1.3    77.4    -      -       -      +
     29A  ALA*     1.3    66.1    +      -       -      +
     30A  VAL*     4.3    14.4    -      -       +      -
     42A  THR*     3.4     2.4    -      -       -      -
     43A  TRP*     2.8    49.4    +      -       +      +
     54A  VAL*     3.7     7.5    -      -       -      +
     60A  PHE*     4.4     1.1    -      -       -      -
    338A  MET*     3.6    35.0    -      -       +      -
    339A  LEU      3.3    10.3    -      -       -      +
    340A  ALA*     4.3     7.0    -      -       +      -
    344A  TYR*     3.5    23.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 29 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  MET*     1.3    74.9    -      -       -      +
     30A  VAL*     1.3    65.3    +      -       -      +
     41A  PHE      3.3     9.0    -      -       -      +
     42A  THR*     4.2     4.9    -      -       +      +
     54A  VAL*     4.0     8.5    -      -       +      -
     55A  THR      4.9     0.7    -      -       -      +
     60A  PHE*     3.9    22.8    -      -       +      -
    227A  ILE*     3.6    29.3    -      -       +      +
    339A  LEU*     2.9    33.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  VAL*     4.5    11.0    -      -       +      -
     16A  ILE*     4.1    19.3    -      -       +      -
     28A  MET*     4.3     7.9    -      -       +      -
     29A  ALA*     1.3    81.8    -      -       -      +
     31A  ALA*     1.3    72.3    +      -       -      +
     32A  VAL*     4.3     8.7    -      -       +      -
     39A  TYR      4.4     0.2    -      -       -      -
     40A  TYR*     3.4     2.6    -      -       -      -
     41A  PHE*     2.8    41.8    +      -       +      -
     43A  TRP*     3.4    29.6    -      -       +      -
    227A  ILE*     3.8     5.3    -      -       -      +
    336A  ILE*     4.1    17.9    -      -       +      -
    337A  VAL      3.3    12.8    -      -       -      +
    338A  MET*     4.3     7.4    -      -       +      -
    356A  ILE*     5.2     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  VAL*     1.3    74.7    -      -       -      +
     32A  VAL*     1.3    62.2    -      -       -      +
     33A  ILE*     4.2     3.9    -      -       +      +
     39A  TYR      3.2     6.5    -      -       -      +
     40A  TYR*     3.8    14.6    -      -       +      -
    227A  ILE*     3.6    22.0    -      -       +      +
    231A  ALA*     3.9    21.5    -      -       +      -
    336A  ILE*     3.2     7.1    -      -       -      +
    337A  VAL*     2.9    36.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  ILE*     4.4    12.8    -      -       +      -
     12A  VAL*     3.8    28.5    -      -       +      -
     30A  VAL*     4.3    10.1    -      -       +      -
     31A  ALA*     1.3    77.9    -      -       -      +
     33A  ILE*     1.3    72.5    +      -       -      +
     34A  TYR*     4.5     4.3    -      -       +      +
     37A  LYS      3.5     2.1    -      -       -      +
     38A  PRO*     3.4     0.9    -      -       -      +
     39A  TYR*     2.9    36.3    +      -       +      +
     41A  PHE*     4.5     2.5    -      -       +      -
    334A  LEU*     4.6     1.6    -      -       +      -
    335A  GLY      3.4     7.9    -      -       -      +
    336A  ILE*     4.3     5.2    -      -       +      -
    356A  ILE*     4.1    14.1    -      -       +      -
    357A  LEU*     5.0     0.9    -      -       +      -
    360A  LEU*     3.6    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ALA*     4.3     7.4    -      -       +      +
     32A  VAL*     1.3    79.1    -      -       -      +
     34A  TYR*     1.3    59.9    +      -       -      +
     36A  GLY*     3.9    23.8    -      -       -      +
     37A  LYS      3.3     5.2    -      -       -      +
     38A  PRO*     4.6     5.8    -      -       +      -
    231A  ALA*     4.1    39.9    -      -       +      +
    234A  VAL*     4.2    17.7    -      -       +      -
    235A  GLN*     4.2    10.1    -      -       +      -
    238A  LEU*     3.6    24.2    -      -       +      -
    333A  GLU      3.9     6.1    -      -       -      +
    334A  LEU*     3.3    11.6    -      -       -      +
    335A  GLY*     2.8    40.8    +      -       -      +
    336A  ILE*     4.7     0.7    -      -       -      +
    337A  VAL*     5.1     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  PRO*     5.2     9.2    -      -       +      -
      7A  GLN*     4.7    11.2    +      -       -      -
      8A  ILE*     3.7    31.6    -      -       +      -
     32A  VAL*     3.7     4.6    +      -       +      -
     33A  ILE*     1.3    73.2    -      -       -      +
     35A  GLN*     1.3   105.9    +      -       +      +
     36A  GLY      3.0     0.7    -      -       -      -
     37A  LYS*     2.8    26.0    +      -       -      +
     39A  TYR*     3.9    13.8    +      +       +      -
    333A  GLU      4.2     0.2    -      -       -      -
    334A  LEU*     4.2    15.9    -      -       +      -
    360A  LEU*     3.8    37.6    +      -       +      -
----------------------------------------------------------
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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