Contacts of the strand formed by residues 274 - 278 (chain C) in PDB entry 2VM8


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 VAL 274 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240C  ILE*     4.3    10.3    -      -       +      -
    250C  LEU*     3.3    33.2    -      -       +      +
    252C  ILE*     4.3     6.5    -      -       +      -
    264C  ILE*     4.3    14.4    -      -       +      +
    267C  ALA*     4.3     3.4    -      -       +      -
    268C  ARG*     3.5    41.1    +      -       +      +
    272C  THR*     3.0    34.1    +      -       +      +
    273C  VAL*     1.3    74.9    -      -       -      +
    275C  TYR*     1.3    82.9    +      -       -      +
    327C  GLN*     4.0     2.1    +      -       -      -
    481C  ARG*     5.1     0.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 275 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194C  ILE*     5.9     2.7    -      -       +      -
    249C  PRO*     5.3     1.8    -      -       +      -
    250C  LEU      3.0    15.1    +      -       -      +
    251C  TYR*     3.5    23.2    -      +       +      -
    252C  ILE*     2.8    31.3    +      -       -      +
    264C  ILE*     4.7     1.6    -      -       -      -
    273C  VAL*     4.1    15.5    -      -       +      -
    274C  VAL*     1.3    88.1    -      -       -      +
    276C  GLY*     1.3    54.5    +      -       -      +
    327C  GLN*     3.1    26.5    -      -       +      +
    328C  VAL*     4.7     5.2    -      -       +      -
    391C  VAL*     3.9    20.2    -      -       +      -
    477C  PHE*     3.5    26.6    +      +       -      -
    478C  VAL*     3.1    33.6    -      -       +      +
    481C  ARG*     2.9    29.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 276 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251C  TYR*     5.6     0.4    -      -       -      -
    252C  ILE      3.9     3.4    -      -       -      -
    264C  ILE*     4.2    15.5    -      -       -      +
    275C  TYR*     1.3    74.6    -      -       -      +
    277C  GLU*     1.3    60.2    +      -       -      -
    278C  PRO*     3.5    12.3    -      -       -      +
    326C  LEU*     4.0    15.9    -      -       -      -
    327C  GLN*     2.7    22.4    +      -       -      -
    328C  VAL*     3.0    19.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 277 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  VAL*     3.3    17.9    -      -       +      +
     73C  HIS*     3.0    36.4    +      -       -      +
    107C  HIS*     5.7     0.2    +      -       -      -
    196C  GLN*     5.4     0.2    +      -       -      -
    251C  TYR*     2.6    39.3    +      -       +      +
    252C  ILE      3.0    17.0    +      -       -      +
    253C  THR*     3.6     3.2    -      -       -      -
    254C  LYS*     2.8    25.8    +      -       -      -
    255C  VAL*     2.7    23.7    +      -       -      +
    276C  GLY*     1.3    71.8    -      -       -      -
    278C  PRO*     1.3    71.5    -      -       -      +
    279C  ILE*     3.7    10.0    -      -       +      +
    328C  VAL*     3.7     5.8    -      -       +      +
    330C  GLY      4.1     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 278 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255C  VAL*     3.4    19.5    -      -       +      +
    276C  GLY      3.5     9.0    -      -       -      +
    277C  GLU*     1.3    89.1    -      -       -      +
    279C  ILE*     1.3    60.5    +      -       -      +
    282C  SER*     3.6     9.0    -      -       -      +
    283C  LEU*     4.0    22.9    -      -       +      -
    317C  LEU*     4.6     3.4    -      -       +      -
    321C  LEU*     4.1    15.0    -      -       +      -
    326C  LEU*     4.0    28.3    -      -       +      -
    328C  VAL      3.3    16.2    -      -       -      +
    329C  THR*     3.5     5.0    -      -       +      -
    330C  GLY      3.2    19.8    +      -       -      -
----------------------------------------------------------
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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