Contacts of the helix formed by residues 928 - 940 (chain u) in PDB entry 6FF7


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 TYR 928 (chain u).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    893u  ILE*     5.4    11.4    -      -       +      -
    925u  VAL*     3.5    19.1    -      -       +      +
    926u  LYS      3.1     1.8    +      -       -      -
    927u  PRO*     1.3    78.8    -      -       -      +
    929u  LEU*     1.3    62.0    +      -       -      +
    930u  PRO      3.5     2.7    -      -       -      -
    931u  GLN*     3.3    11.3    +      -       -      +
    932u  ILE*     3.1    28.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 929 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    925u  VAL      3.5    10.1    +      -       -      +
    926u  LYS*     3.9     8.5    +      -       -      +
    928u  TYR*     1.3    74.3    -      -       -      +
    930u  PRO*     1.4    60.3    -      -       -      +
    932u  ILE*     4.5     5.4    -      -       -      -
    933u  CYS*     2.9    32.2    +      -       -      +
    962u  MET*     6.4     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 930 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    926u  LYS      5.3     1.2    -      -       -      -
    928u  TYR      3.5     0.6    -      -       -      -
    929u  LEU*     1.4    76.8    -      -       -      +
    931u  GLN*     1.3    58.0    +      -       -      +
    933u  CYS*     4.2     2.9    -      -       +      +
    934u  GLY*     2.9    26.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 931 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    928u  TYR*     3.3    14.0    +      -       -      +
    930u  PRO*     1.3    78.4    -      -       -      +
    932u  ILE*     1.3    58.0    +      -       -      +
    934u  GLY*     3.4     1.5    +      -       -      -
    935u  THR*     2.9    28.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 932 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    928u  TYR*     3.1    17.7    +      -       +      +
    929u  LEU*     4.1     5.6    -      -       -      +
    931u  GLN*     1.3    75.2    -      -       -      +
    933u  CYS*     1.3    59.8    +      -       -      +
    935u  THR*     3.2     8.9    +      -       -      -
    936u  VAL*     2.9    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 933 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    929u  LEU      2.9    19.5    +      -       -      +
    930u  PRO*     4.2     3.1    -      -       +      +
    932u  ILE*     1.3    76.7    -      -       -      +
    934u  GLY*     1.3    58.0    +      -       -      +
    936u  VAL*     3.3     7.8    +      -       -      +
    937u  LEU*     2.9    29.9    +      -       -      +
    970u  LEU*     6.0     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 934 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    930u  PRO      2.9    18.8    +      -       -      -
    931u  GLN*     3.8     1.3    -      -       -      -
    933u  CYS*     1.3    73.2    -      -       -      +
    935u  THR*     1.3    60.5    +      -       -      +
    937u  LEU*     3.8     5.6    -      -       -      +
    938u  TRP*     2.9    31.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 935 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    897u  LEU*     6.2     4.5    -      -       -      -
    931u  GLN      2.9    15.8    +      -       -      -
    932u  ILE*     3.4    11.7    -      -       -      -
    934u  GLY*     1.3    75.2    -      -       -      +
    936u  VAL*     1.3    56.6    +      -       -      +
    938u  TRP*     3.9     4.0    -      -       -      +
    939u  ARG*     2.8    32.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 936 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    932u  ILE      2.9    15.4    +      -       -      +
    933u  CYS*     3.6     9.2    -      -       -      +
    934u  GLY      3.2     0.2    -      -       -      -
    935u  THR*     1.3    78.0    -      -       -      +
    937u  LEU*     1.3    57.4    +      -       -      +
    939u  ARG*     3.1     7.1    +      -       -      +
    940u  LEU*     3.0    31.4    +      -       -      +
    951u  ALA*     4.3    20.4    -      -       +      +
    954u  LEU*     6.0     3.8    -      -       +      -
    955u  ILE*     6.3     2.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 937 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    933u  CYS      2.9    18.4    +      -       -      +
    934u  GLY*     4.0     5.6    -      -       -      +
    936u  VAL*     1.3    76.1    -      -       -      +
    938u  TRP*     1.3    60.1    +      -       -      +
    940u  LEU*     4.0    13.7    +      -       -      +
    941u  ASN*     5.1     0.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 938 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1755A  SER*     5.7     4.0    -      -       -      -
   1760A  GLU*     5.6    11.9    -      -       +      -
    934u  GLY      2.9    17.1    +      -       -      +
    935u  THR*     4.1     4.3    -      -       -      +
    937u  LEU*     1.3    75.2    -      -       -      +
    939u  ARG*     1.3    63.5    +      -       -      +
    940u  LEU      3.2     1.5    +      -       -      -
    941u  ASN*     3.8    12.6    +      -       -      +
    942u  ASN*     4.6     2.8    +      -       -      +
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Residues in contact with ARG 939 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    935u  THR      2.8    21.7    +      -       -      +
    936u  VAL*     3.1     8.7    +      -       -      +
    938u  TRP*     1.3    75.8    -      -       -      +
    940u  LEU*     1.3    56.0    +      -       -      +
    941u  ASN      3.0     7.6    +      -       -      -
    942u  ASN*     3.3    21.4    -      -       +      +
    947u  VAL      3.8     9.0    -      -       -      +
    948u  ARG*     5.1     0.5    -      -       -      -
    951u  ALA*     4.6    10.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 940 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    936u  VAL      3.0    14.5    +      -       -      +
    937u  LEU*     4.1    12.3    -      -       -      +
    938u  TRP      3.2     2.2    -      -       -      -
    939u  ARG*     1.3    74.3    -      -       -      +
    941u  ASN*     1.3    57.7    +      -       -      +
    948u  ARG*     4.5    15.6    -      -       -      +
    951u  ALA*     4.8    11.9    -      -       +      -
    981u  TYR*     6.5     0.7    -      -       +      -
----------------------------------------------------------
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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