Contacts of the strand formed by residues 70 - 82 (chain A) in PDB entry 4LDD


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 SER 70 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  GLY      5.6     0.3    +      -       -      -
     68A  SER      3.7     5.5    +      -       -      -
     69A  VAL*     1.3    77.8    -      -       -      +
     71A  SER*     1.3    61.7    +      -       -      +
    100A  VAL*     4.9     6.1    -      -       -      -
    101A  ALA      3.6    13.5    -      -       -      -
    102A  ASP*     3.5    23.3    -      -       -      +
    103A  GLN*     4.8     0.6    +      -       -      -
    104A  LYS*     5.9     0.3    -      -       -      -
    186A  LEU*     2.8    41.5    +      -       -      +
    188A  ALA*     4.8     5.9    -      -       -      +
     93C  PRO*     5.9     2.0    -      -       -      -
    164C  PRO*     4.5    17.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  HIS*     3.2    35.0    +      -       -      +
     69A  VAL*     4.2     6.8    +      -       -      +
     70A  SER*     1.3    77.4    +      -       -      +
     72A  ALA*     1.3    60.7    +      -       -      +
     73A  PHE*     3.8     9.4    -      -       -      -
    100A  VAL*     3.7     2.3    -      -       -      +
    101A  ALA*     2.9    36.0    +      -       -      +
    103A  GLN*     5.0     0.9    +      -       -      +
    108A  PHE*     3.5    26.3    -      -       -      -
    183A  THR*     4.1     1.3    -      -       -      -
    184A  GLN      3.5     4.9    -      -       -      -
    186A  LEU*     4.5     4.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  SER*     1.3    73.9    -      -       -      +
     73A  PHE*     1.3    61.0    +      -       -      +
     74A  ILE*     4.3     3.8    -      -       +      -
     99A  GLY      3.4     8.7    -      -       -      +
    100A  VAL*     4.5     0.7    -      -       -      +
    183A  THR*     3.1    23.0    +      -       -      -
    184A  GLN*     2.8    27.2    +      -       +      +
    186A  LEU*     4.5     5.4    -      -       +      +
     95C  TRP*     3.8    45.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  SER*     3.8    16.4    -      -       -      -
     72A  ALA*     1.3    78.0    -      -       -      +
     74A  ILE*     1.3    60.4    +      -       -      +
     98A  LEU*     2.7    39.6    +      -       +      -
     99A  GLY      2.9    20.9    +      -       -      +
    101A  ALA*     3.7    23.8    -      -       +      -
    108A  PHE*     3.4    43.5    -      +       -      -
    111A  THR*     3.9    17.9    -      -       +      -
    112A  THR*     4.5     6.1    -      -       +      -
    115A  ILE*     3.8    17.3    -      -       +      -
    147A  LEU*     3.7    29.2    -      -       +      -
    181A  LEU*     4.4    12.8    -      -       +      -
    182A  ILE      3.7     1.6    -      -       -      -
    183A  THR*     3.9    11.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  ALA*     4.3     4.9    -      -       +      +
     73A  PHE*     1.3    88.6    -      -       -      +
     75A  LEU*     1.3    71.8    +      -       -      +
     76A  GLU      4.8     0.2    -      -       -      +
     95A  TRP*     3.5    51.1    -      -       +      -
     96A  LEU      3.5    11.9    -      -       -      +
     97A  PRO*     3.8    15.7    -      -       +      -
     98A  LEU      4.0     0.4    -      -       -      +
    181A  LEU*     3.5     5.5    -      -       -      +
    182A  ILE*     2.8    49.9    +      -       +      +
    184A  GLN*     5.3     2.9    -      -       +      -
     95C  TRP*     3.6    34.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  PRO*     4.7     2.7    -      -       +      -
     74A  ILE*     1.3    74.8    -      -       -      +
     76A  GLU*     1.3    59.8    +      -       -      +
     77A  ALA      3.8     0.8    +      -       -      -
     94A  ILE      3.1     3.8    -      -       -      +
     95A  TRP*     4.0     0.3    -      -       -      -
     96A  LEU*     2.7    52.9    +      -       +      +
     98A  LEU*     3.7    33.4    -      -       +      +
    115A  ILE*     4.7     6.5    -      -       +      -
    120A  TYR*     5.0     9.9    -      -       +      -
    135A  VAL*     5.0     9.4    -      -       +      -
    149A  LEU*     4.1    12.3    -      -       +      -
    179A  LEU*     4.0    30.7    -      -       +      -
    180A  LYS      3.5    15.7    -      -       -      +
    181A  LEU*     3.7    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  ILE*     4.2     1.4    +      -       -      +
     75A  LEU*     1.3    69.5    -      -       -      +
     77A  ALA*     1.3    60.7    +      -       -      +
     78A  MET*     3.8    11.0    +      -       +      +
     93A  PRO*     4.6    13.2    -      -       +      -
     94A  ILE      3.6     6.5    -      -       -      +
     95A  TRP*     5.0     5.4    -      -       +      +
    178A  ALA      4.0     0.3    -      -       -      +
    179A  LEU*     3.7     2.5    -      -       -      -
    180A  LYS*     2.9    60.7    +      -       +      +
    182A  ILE*     3.4    31.3    -      -       +      +
    184C  GLN*     5.0     1.9    +      -       -      -
    185C  PRO      4.7     1.9    -      -       -      +
    186C  LEU*     3.8    22.6    -      -       +      +
    187C  PRO*     3.3    31.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  LEU      3.8     0.2    +      -       -      -
     76A  GLU*     1.3    72.0    -      -       -      +
     78A  MET*     1.3    62.0    +      -       -      +
     79A  VAL*     3.7     7.0    -      -       +      -
     92A  ILE      3.1     5.0    -      -       -      +
     93A  PRO*     4.3     1.8    -      -       -      -
     94A  ILE*     2.7    49.1    +      -       +      +
     96A  LEU*     4.8    10.8    -      -       +      -
    122A  ILE*     5.0     6.1    -      -       +      -
    176A  LEU*     3.9    20.9    -      -       +      -
    178A  ALA      3.5     4.3    -      -       -      -
    179A  LEU*     3.9    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  GLU*     3.8    11.6    +      -       +      +
     77A  ALA*     1.3    68.8    -      -       -      +
     79A  VAL*     1.3    57.9    +      -       -      +
     91A  GLN*     3.4    47.1    -      -       -      +
     92A  ILE      3.5     4.5    -      -       -      -
     93A  PRO*     3.4    36.8    -      -       +      -
    177A  THR*     2.4    37.7    +      -       -      +
    178A  ALA*     2.9    25.0    +      -       +      +
    187C  PRO*     3.6    33.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ALA*     3.8     6.7    -      -       +      +
     78A  MET*     1.3    77.4    -      -       -      +
     80A  ASN*     1.3    72.6    +      -       -      +
     81A  VAL*     4.6     3.6    -      -       +      -
     91A  GLN      3.3     0.7    +      -       -      -
     92A  ILE*     2.8    44.9    +      -       +      +
     94A  ILE*     3.6    28.3    -      -       +      -
    122A  ILE*     4.9     4.5    -      -       +      -
    163A  LEU*     5.8     0.4    -      -       +      -
    174A  PHE*     3.5    33.0    -      -       +      -
    175A  ASP      3.4    10.1    -      -       -      +
    176A  LEU*     3.7    24.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  VAL*     1.3    73.4    -      -       -      +
     81A  VAL*     1.3    63.7    +      -       -      +
     82A  ILE*     3.5     8.3    +      -       +      +
     89A  MET      3.4     8.5    -      -       -      +
     90A  LYS*     4.3    11.7    -      -       -      +
     91A  GLN*     2.8    40.7    +      -       -      +
    174A  PHE*     4.9     0.2    -      -       -      -
    175A  ASP*     2.9    51.5    +      -       +      +
    177A  THR*     3.6    17.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  VAL*     4.6     1.8    -      -       +      -
     80A  ASN*     1.3    71.4    -      -       -      +
     82A  ILE*     1.3    55.6    +      -       -      +
     88A  LEU*     2.8    43.5    +      -       +      -
     89A  MET*     2.9    30.0    +      -       +      +
     92A  ILE*     4.2    14.3    -      -       +      +
    163A  LEU*     6.3     2.0    -      -       +      -
    169A  PRO*     5.8     1.8    -      -       +      -
    172A  PHE*     3.5    42.6    -      -       +      -
    173A  THR      3.7     3.4    -      -       -      -
    174A  PHE*     4.2    24.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  ASN*     4.0    14.4    -      -       +      +
     81A  VAL*     1.3    79.0    -      -       -      +
     83A  SER*     1.3    61.0    +      -       -      +
     84A  GLY      4.6    14.6    -      -       -      +
     85A  PRO      5.7     4.9    -      -       -      +
     88A  LEU*     4.2     8.1    -      -       -      +
    172A  PHE*     3.5     4.3    -      -       -      +
    173A  THR*     2.9    62.1    +      -       +      +
    174A  PHE      4.8     2.7    -      -       -      +
    175A  ASP*     4.4    20.0    -      -       +      +
----------------------------------------------------------
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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