Contacts of the strand formed by residues 218 - 225 (chain 4) in PDB entry 1SVA


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 THR 218 (chain 4).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2383  ASN*     3.0    19.5    +      -       -      -
    1534  ALA*     4.3     2.9    -      -       -      +
    1544  VAL      3.4     7.5    +      -       -      -
    1554  GLY*     3.4    16.6    -      -       -      -
    1574  GLU*     4.0    23.6    -      -       +      +
    1584  PRO      4.2     6.1    -      -       -      +
    1594  LEU*     4.1    16.7    -      -       -      +
    1604  GLU*     4.7     0.9    -      -       -      +
    2154  ASN*     3.4    31.3    +      -       +      +
    2164  GLU      3.5     0.4    +      -       -      -
    2174  ASN*     1.3    85.9    -      -       -      +
    2194  ARG*     1.3    77.3    +      -       -      +
    2204  TYR*     5.1     0.7    -      -       -      +
    2524  PRO*     4.3     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 219 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2383  ASN*     3.6     8.0    -      -       -      +
    2393  THR*     4.2    17.3    -      -       +      -
    1534  ALA*     3.1     4.3    -      -       -      +
    1544  VAL      2.9    30.5    +      -       -      +
    2154  ASN      5.1     0.2    +      -       -      -
    2164  GLU      3.5    23.0    +      -       -      -
    2174  ASN*     4.3     3.6    +      -       -      +
    2184  THR*     1.3    87.8    +      -       -      +
    2204  TYR*     1.3    61.6    +      -       -      +
    2214  PHE*     3.8    23.3    -      -       +      -
    2444  LEU*     2.8    41.3    +      -       +      +
    2454  LEU      4.6     1.4    +      -       -      -
    2464  ASP*     3.3    21.8    -      -       -      +
    2504  VAL*     2.8    31.1    +      -       -      +
    2514  GLY*     3.6    10.9    +      -       -      -
    2524  PRO*     4.3    10.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 220 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1183  GLU*     2.6    28.4    +      -       -      -
    2363  ILE*     3.5    11.7    -      -       +      -
    2373  THR*     2.8    49.4    -      -       -      +
    2383  ASN*     2.9    48.1    +      -       +      +
    1514  PHE*     3.8    11.4    -      +       +      -
    1524  PHE      3.4     5.8    -      -       -      +
    1534  ALA*     3.6    16.2    -      -       +      -
    1594  LEU*     5.0     2.7    -      -       +      -
    2104  PRO*     3.5    38.0    +      -       +      -
    2124  PRO*     3.7    18.0    -      -       +      +
    2154  ASN*     4.6    16.2    -      -       +      -
    2184  THR*     5.3     0.2    -      -       -      -
    2194  ARG*     1.3    77.1    -      -       -      +
    2214  PHE*     1.3    69.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 221 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2363  ILE      3.5     7.6    -      -       -      -
    2373  THR*     3.6    11.2    -      -       +      +
    2393  THR*     3.5    34.5    -      -       +      -
    1514  PHE*     3.0     8.1    -      -       -      -
    1524  PHE*     2.7    78.0    +      +       +      +
    2194  ARG*     3.8    20.2    -      -       +      -
    2204  TYR*     1.3    98.3    -      -       -      +
    2224  GLY*     1.3    56.1    +      -       -      +
    2424  THR*     4.1    24.5    -      -       +      -
    2434  VAL      4.9     1.8    -      -       -      -
    2444  LEU*     4.7     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 222 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2353  HIS*     3.3     2.6    -      -       -      +
    2363  ILE*     2.9    41.4    +      -       -      +
    2373  THR*     4.6     0.5    +      -       -      -
    1494  PHE*     4.3     0.7    -      -       -      -
    1504  HIS      3.1    13.7    -      -       -      -
    1514  PHE*     3.6     9.4    -      -       -      -
    2214  PHE*     1.3    75.5    -      -       -      +
    2234  THR*     1.3    71.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 223 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2333  VAL*     5.7     1.3    -      -       -      -
    2343  LEU      3.1     7.0    -      -       -      -
    2353  HIS*     3.2    31.6    -      -       +      -
    2363  ILE*     5.4     0.2    -      -       -      -
    1484  ASN*     3.8     1.4    +      -       -      +
    1494  PHE*     3.6    20.3    -      -       -      -
    1504  HIS*     3.1    16.6    +      -       -      +
    2224  GLY*     1.3    82.3    -      -       -      +
    2244  TYR*     1.3    63.9    +      -       -      +
    2254  THR*     3.4    11.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 224 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1223  VAL*     3.2    37.8    -      -       +      +
    1233  THR*     5.2     0.2    -      -       -      -
    1253  MET*     3.1    61.0    +      -       +      +
    1263  LEU*     3.4    29.6    -      -       +      +
    1433  PRO*     4.6     3.1    -      -       -      +
    2323  PRO*     4.2     3.8    -      -       +      -
    2333  VAL*     3.2     3.1    -      -       -      +
    2343  LEU*     2.6    46.7    +      -       +      +
    1474  SER*     3.3    10.6    +      -       -      -
    1484  ASN      3.6    10.5    -      -       -      -
    1494  PHE*     3.7    15.5    -      +       +      -
    2234  THR*     1.3    70.1    -      -       -      +
    2254  THR*     1.3    70.0    +      -       -      +
    2264  GLY*     3.1    34.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 225 (chain 4). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2313  PRO*     5.6     0.4    -      -       +      -
    2323  PRO      3.3     4.3    -      -       -      +
    2333  VAL*     3.5    24.8    -      -       +      +
    1474  SER*     3.5     2.4    -      -       -      -
    1484  ASN*     3.0    46.6    +      -       -      +
    2234  THR*     3.4    12.8    +      -       -      -
    2244  TYR*     1.3    81.8    +      -       -      +
    2264  GLY*     1.3    64.6    +      -       -      +
    2304  VAL*     3.6    23.2    -      -       +      +
    2314  PRO      6.1     0.2    -      -       -      +
----------------------------------------------------------
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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