Contacts of the strand formed by residues 27 - 34 (chain B) in PDB entry 3FTN


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 ALA 27 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  PRO*     4.4     0.4    -      -       -      -
     26B  ASP*     1.3    76.1    -      -       -      +
     28B  ILE*     1.3    68.8    +      -       -      +
     29B  VAL*     4.1     8.5    +      -       +      -
     65B  VAL*     4.5     3.4    -      -       +      -
     67B  GLU      3.2    11.4    -      -       -      +
     68B  VAL*     4.3     9.2    -      -       +      +
    125B  HIS*     3.7     1.2    -      -       -      -
    126B  VAL*     2.9    35.0    +      -       +      +
    129B  ALA*     3.7    20.4    -      -       +      -
    133B  LEU*     4.1    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 28 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  LYS*     4.4     7.4    -      -       -      -
     20B  PRO*     3.3    34.8    -      -       +      +
     21B  ALA      3.7     3.1    -      -       -      -
     22B  PRO*     3.6    37.2    -      -       +      -
     27B  ALA*     1.3    79.8    -      -       -      +
     29B  VAL*     1.3    64.5    +      -       -      +
     65B  VAL*     3.7     0.9    -      -       -      -
     66B  VAL*     2.8    42.7    +      -       +      +
     67B  GLU*     2.7    24.5    +      -       +      +
    123B  PHE*     3.9    20.0    -      -       +      -
    124B  PHE      3.4    10.3    -      -       -      +
    125B  HIS*     4.2    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 29 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  ALA*     4.4     7.2    -      -       +      -
     28B  ILE*     1.3    79.9    -      -       -      +
     30B  ARG*     1.3    65.6    +      -       -      +
     63B  GLY*     3.6     8.1    -      -       -      -
     64B  GLU      3.4    24.5    -      -       -      +
     65B  VAL*     4.2    19.5    -      -       +      +
     66B  VAL*     4.6     3.8    -      -       -      -
     81B  VAL*     4.6     4.3    -      -       +      -
     83B  VAL*     4.6     0.7    -      -       +      -
    123B  PHE*     3.3     4.7    -      -       -      -
    124B  PHE*     2.8    63.1    +      -       +      -
    126B  VAL*     3.9    22.2    -      -       +      -
    133B  LEU*     4.6     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 30 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  VAL*     1.3    75.9    -      -       -      +
     31B  PRO*     1.3    73.5    +      -       +      +
     32B  LEU*     3.7    25.0    -      -       -      +
     63B  GLY*     3.1     1.6    -      -       -      -
     64B  GLU*     2.7    75.5    +      -       +      +
     66B  VAL*     4.0    12.5    -      -       +      +
    122B  GLU      3.5    17.0    -      -       -      +
    123B  PHE*     4.0    13.7    -      -       +      -
    327B  PHE*     6.2     1.8    -      -       -      -
    351B  LEU*     5.5     2.4    -      -       -      +
    352B  ALA*     4.1    17.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 31 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30B  ARG*     1.3    91.8    +      -       +      +
     32B  LEU*     1.3    63.8    +      -       -      +
     34B  VAL*     3.6    20.9    -      -       +      -
     61B  ALA*     4.7     0.4    -      -       +      -
     62B  VAL      3.6     6.3    -      -       -      +
     63B  GLY*     4.1     1.8    -      -       -      -
    119B  VAL      3.9     5.2    -      -       -      +
    121B  GLY      3.2    27.4    -      -       -      +
    122B  GLU      3.5     8.3    -      -       -      +
    124B  PHE*     3.8    22.0    -      -       +      -
    327B  PHE*     4.2     8.6    -      -       +      -
    330B  ILE*     6.3     0.2    -      -       +      -
    351B  LEU*     3.5    35.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 32 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30B  ARG*     3.7    37.5    -      -       -      +
     31B  PRO*     1.3    74.0    -      -       -      +
     33B  ALA*     1.3    56.4    +      -       -      +
     62B  VAL*     2.7    19.1    +      -       +      +
     63B  GLY*     3.9    20.0    -      -       -      +
     64B  GLU*     4.2     9.9    -      -       +      -
     80B  ARG*     3.8    37.9    -      -       +      +
    142B  LEU*     4.1    19.6    -      -       +      +
    350B  ILE*     3.6     5.2    -      -       -      +
    351B  LEU*     2.7    32.2    +      -       -      -
    352B  ALA*     3.6    18.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 33 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  PRO      3.6     0.4    -      -       -      -
     32B  LEU*     1.3    80.5    -      -       -      +
     34B  VAL*     1.3    69.7    +      -       -      +
     61B  ALA*     3.2     0.7    -      -       -      -
     62B  VAL*     2.9    32.7    +      -       +      +
    142B  LEU*     4.0    33.7    -      -       +      +
    146B  VAL*     4.0    10.3    -      -       +      -
    348B  VAL*     4.5     4.3    -      -       +      -
    349B  VAL      3.3     9.9    -      -       -      +
    350B  ILE*     4.4     8.7    -      -       +      -
    351B  LEU*     5.0     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 34 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  PRO*     3.6    26.5    -      -       +      -
     33B  ALA*     1.3    81.5    -      -       -      +
     35B  ALA*     1.3    64.4    -      -       -      +
     36B  PRO*     6.1     0.2    -      -       +      -
     60B  GLU      3.2    14.8    -      -       -      +
     61B  ALA*     4.0     6.5    -      -       +      -
    119B  VAL*     4.3    11.4    -      -       +      +
    120B  PHE*     3.6    25.8    -      -       +      -
    146B  VAL*     3.9     4.9    -      -       -      -
    330B  ILE*     4.2    14.1    -      -       +      -
    348B  VAL*     3.5     3.6    -      -       -      +
    349B  VAL*     2.8    52.4    +      -       +      +
    351B  LEU*     4.3     4.9    -      -       +      -
----------------------------------------------------------
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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