Contacts of the strand formed by residues 300 - 309 (chain B) in PDB entry 4IF8


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 300 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  GLN*     4.3     5.8    -      -       -      +
    249B  VAL      3.2    30.6    +      -       -      +
    298B  LEU      4.6     3.1    +      -       -      -
    299B  LEU*     1.3    80.2    +      -       -      +
    301B  ARG*     1.4    68.8    +      -       -      +
    302B  ARG*     3.5     7.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 301 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246B  ILE*     5.8    13.2    -      -       +      -
    247B  TYR      4.0     6.3    -      -       -      -
    248B  GLN*     3.8    33.5    -      -       +      +
    300B  SER*     1.4    73.6    -      -       -      +
    302B  ARG*     1.3    61.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 302 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245B  GLY      3.6     0.5    -      -       -      +
    246B  ILE*     3.7     8.6    -      -       -      +
    247B  TYR      3.0    36.3    +      -       -      +
    249B  VAL*     5.3     9.2    -      -       +      -
    300B  SER*     4.0     8.7    -      -       -      +
    301B  ARG*     1.3    75.2    -      -       -      +
    303B  VAL*     1.4    70.8    +      -       +      +
    304B  VAL*     3.4     9.2    -      -       +      +
    382B  LEU*     3.5    43.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 303 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244B  SER*     4.4    14.4    -      -       -      +
    245B  GLY*     3.7    12.8    -      -       -      +
    246B  ILE*     5.0     5.6    -      -       +      +
    302B  ARG*     1.4    76.5    -      -       +      +
    304B  VAL*     1.3    62.8    +      -       -      +
    305B  ASP*     5.2     3.5    -      -       -      +
    382B  LEU      3.3    20.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 304 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244B  SER*     3.4     3.9    -      -       -      -
    245B  GLY      3.2    27.7    +      -       -      +
    247B  TYR*     3.8    10.1    -      -       +      -
    249B  VAL*     3.5    27.8    -      -       +      -
    260B  LEU*     4.6     0.2    -      -       +      -
    302B  ARG*     3.4    20.2    -      -       +      +
    303B  VAL*     1.3    77.2    -      -       -      +
    305B  ASP*     1.3    64.2    +      -       -      +
    306B  VAL*     3.5    23.9    +      -       +      +
    382B  LEU*     3.4    21.5    -      -       +      +
    384B  VAL*     3.8    29.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 305 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242B  PHE*     3.8    29.6    -      -       +      -
    243B  ARG      4.1     3.6    -      -       -      -
    244B  SER*     3.2    20.3    +      -       -      -
    303B  VAL*     5.2     4.0    -      -       -      +
    304B  VAL*     1.3    72.3    -      -       -      +
    306B  VAL*     1.3    60.9    +      -       -      +
    307B  SER*     3.9     1.2    +      -       -      -
    382B  LEU      3.4    12.5    +      -       -      +
    383B  VAL*     4.1    21.2    -      -       +      +
    384B  VAL      3.5    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 306 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218B  PHE*     4.7     5.7    -      -       +      -
    241B  MET      3.5     0.9    -      -       -      +
    242B  PHE*     3.4     9.5    -      -       -      -
    243B  ARG      3.1    30.4    +      -       -      +
    247B  TYR*     3.7    39.3    -      -       +      -
    260B  LEU*     3.7    28.9    -      -       +      -
    262B  ILE*     4.1     5.4    -      -       +      -
    304B  VAL*     3.7    20.2    -      -       +      +
    305B  ASP*     1.3    71.2    -      -       -      +
    307B  SER*     1.4    63.1    +      -       -      +
    308B  VAL*     3.6    23.7    +      -       +      -
    384B  VAL      3.9     7.4    -      -       -      +
    386B  ILE*     4.8     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 307 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226B  GLU*     4.9     6.6    +      -       -      -
    240B  MET*     3.8    18.5    -      -       -      +
    241B  MET      3.3     6.2    +      -       -      -
    242B  PHE*     3.5    21.5    -      -       -      +
    305B  ASP      3.9     1.5    +      -       -      -
    306B  VAL*     1.4    68.6    -      -       -      +
    308B  VAL*     1.4    59.8    +      -       -      +
    384B  VAL      3.2     7.5    +      -       -      -
    385B  LYS*     3.6    35.6    +      -       -      +
    386B  ILE*     3.0    31.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 308 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214B  TRP*     5.8     2.0    -      -       +      -
    218B  PHE*     4.7     8.7    -      -       +      -
    240B  MET*     3.7     3.8    -      -       -      -
    241B  MET*     2.7    53.3    +      -       +      +
    262B  ILE*     3.6    29.4    -      -       +      -
    272B  PHE*     3.7    24.9    -      -       +      -
    306B  VAL*     3.6    14.6    -      -       +      -
    307B  SER*     1.4    76.2    -      -       -      +
    309B  PRO*     1.4    77.3    -      -       +      +
    360B  MET*     3.7     9.0    -      -       +      -
    386B  ILE*     3.8    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 309 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228B  PHE*     3.8    13.2    -      -       +      -
    238B  VAL*     4.4     6.1    -      -       +      -
    239B  PRO      3.6     9.0    -      -       -      +
    240B  MET*     3.9     8.5    -      -       -      -
    241B  MET*     3.4     2.8    -      -       -      +
    308B  VAL*     1.4    89.3    -      -       +      +
    310B  ARG*     1.3    62.1    +      -       -      +
    311B  LEU*     4.4     1.3    -      -       -      +
    360B  MET*     3.4    23.9    -      -       -      +
    386B  ILE*     3.3    34.8    -      -       +      +
    390B  TYR*     3.7    20.0    -      -       +      +
    411B  PRO*     3.6    22.9    -      -       +      -
----------------------------------------------------------
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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