Contacts of the helix formed by residues 2221 - 2233 (chain B) in PDB entry 2DQZ


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 SER2221 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112B  PLM      3.3    12.0    +      -       -      +
   2101B  PHE*     5.4     2.0    -      -       -      -
   2141B  GLY*     4.3     2.7    -      -       -      -
   2142B  GLY      4.6     0.4    -      -       -      -
   2220B  GLU*     1.3    88.6    -      -       -      +
   2222B  ALA*     1.3    57.1    +      -       -      -
   2223B  GLY      2.9     3.6    -      -       -      -
   2224B  GLY*     2.5    22.2    +      -       -      -
   2225B  GLU*     2.8    11.8    +      -       -      +
   2246B  GLU      2.8    12.9    +      -       -      -
   2247B  SER      3.2    15.9    -      -       -      -
   2248B  GLY*     3.9     4.9    -      -       -      -
   2255B  LEU*     4.7     1.8    -      -       -      -
   2468B  HIS*     2.9    22.8    +      -       -      -
   4001B    F      2.4    23.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA2222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2140B  HIS      4.4     0.9    -      -       -      -
   2141B  GLY*     4.0     2.0    -      -       -      -
   2142B  GLY      3.8     4.5    -      -       -      +
   2143B  GLY*     3.3    16.6    -      -       -      +
   2144B  LEU*     3.4    28.6    -      -       +      +
   2170B  TYR*     4.6     0.9    -      -       -      +
   2220B  GLU      3.3     0.2    +      -       -      -
   2221B  SER*     1.3    71.6    -      -       -      +
   2223B  GLY*     1.3    56.4    +      -       -      +
   2225B  GLU*     3.6     3.9    -      -       -      +
   2226B  SER*     2.9    31.9    +      -       -      -
   2255B  LEU*     3.6    15.0    -      -       +      +
   4001B    F      2.6    26.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY2223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2139B  ILE*     3.3    31.9    -      -       -      +
   2140B  HIS      3.4     7.6    -      -       -      -
   2141B  GLY*     3.6     3.8    -      -       -      -
   2219B  GLY*     3.7     7.7    -      -       -      -
   2220B  GLU      2.9     8.2    +      -       -      -
   2222B  ALA*     1.3    77.1    -      -       -      +
   2224B  GLY*     1.3    65.0    +      -       -      +
   2226B  SER*     3.3     3.5    +      -       -      -
   2227B  VAL*     3.1    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY2224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2219B  GLY      3.4    16.8    -      -       -      -
   2220B  GLU      3.4     6.3    -      -       -      -
   2221B  SER      2.5    18.5    +      -       -      -
   2223B  GLY*     1.3    69.5    -      -       -      +
   2225B  GLU*     1.3    59.3    +      -       -      -
   2227B  VAL*     2.9    17.4    +      -       -      +
   2228B  SER      3.1     2.4    +      -       -      -
   2245B  SER*     2.7    22.0    +      -       -      -
   2246B  GLU      4.3     2.9    -      -       -      -
   2248B  GLY      3.1    15.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU2225 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2144B  LEU*     4.2     4.8    -      -       -      +
   2191B  HIS*     3.7     7.6    -      -       -      -
   2221B  SER      2.8     6.1    +      -       -      +
   2222B  ALA      3.6     6.8    -      -       -      +
   2224B  GLY*     1.3    74.4    -      -       -      +
   2226B  SER*     1.3    65.9    +      -       -      +
   2228B  SER*     3.3     2.9    +      -       -      -
   2229B  VAL*     2.9    37.2    +      -       -      +
   2248B  GLY*     3.3     3.4    +      -       -      -
   2249B  VAL*     3.3    36.3    -      -       -      +
   2250B  ALA*     4.0     4.9    -      -       -      -
   2255B  LEU*     3.4    49.1    -      -       +      +
   2256B  VAL*     3.6     9.8    -      -       +      +
   2321B  THR*     2.7    23.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER2226 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2139B  ILE*     4.1     5.1    -      -       -      +
   2144B  LEU*     4.0     5.0    -      -       -      +
   2170B  TYR*     4.8     0.2    +      -       -      -
   2191B  HIS*     3.6    14.2    +      -       -      -
   2194B  GLN*     3.1    36.0    +      -       -      -
   2222B  ALA      2.9    23.3    +      -       -      -
   2223B  GLY*     3.4     9.7    -      -       -      -
   2224B  GLY      3.1     0.2    -      -       -      -
   2225B  GLU*     1.3    77.5    +      -       -      +
   2227B  VAL*     1.3    60.8    +      -       -      +
   2229B  VAL*     3.3     7.0    +      -       -      +
   2230B  LEU*     2.8    36.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL2227 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2139B  ILE*     4.2    13.0    -      -       +      -
   2217B  ILE*     3.8    13.7    -      -       +      +
   2218B  PHE*     4.0     8.7    -      -       -      +
   2219B  GLY      3.7    21.5    -      -       -      +
   2223B  GLY      3.1    15.6    +      -       -      +
   2224B  GLY*     2.9     9.0    +      -       -      +
   2226B  SER*     1.3    76.9    -      -       -      +
   2228B  SER*     1.3    62.6    +      -       -      +
   2230B  LEU*     3.1     5.0    +      -       -      +
   2231B  VAL*     2.9    26.7    +      -       -      +
   2243B  ALA*     3.5    30.5    -      -       +      -
   2244B  ILE      3.8    13.7    -      -       -      +
   2245B  SER*     3.7     8.5    -      -       -      +
   2346B  TYR*     4.1     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER2228 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2224B  GLY      3.1     5.6    +      -       -      -
   2225B  GLU      3.5     3.4    -      -       -      -
   2227B  VAL*     1.3    77.9    -      -       -      +
   2229B  VAL*     1.3    61.0    +      -       -      +
   2231B  VAL*     3.2    16.7    +      -       -      +
   2232B  LEU*     3.3    19.1    +      -       -      +
   2249B  VAL*     3.7    11.8    -      -       -      +
   2250B  ALA*     2.9    41.7    +      -       -      +
   2346B  TYR*     3.6    20.6    +      -       -      -
   2433B  VAL*     4.5    10.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL2229 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2191B  HIS*     4.5     6.7    -      -       +      +
   2225B  GLU*     2.9    40.9    +      -       -      +
   2226B  SER*     3.5     9.2    -      -       -      +
   2228B  SER*     1.3    77.8    -      -       -      +
   2230B  LEU*     1.3    63.5    +      -       +      +
   2232B  LEU*     3.1     9.5    +      -       -      +
   2233B  SER*     3.0    19.9    +      -       -      -
   2250B  ALA*     4.2    14.6    -      -       +      -
   2256B  VAL*     5.3     1.8    -      -       +      -
   2321B  THR*     4.2    13.5    -      -       +      +
   2327B  LEU*     3.5    31.9    -      -       +      -
   2328B  LEU*     3.9    18.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU2230 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2139B  ILE*     3.9    26.7    -      -       +      -
   2191B  HIS*     4.4     3.4    -      -       +      +
   2194B  GLN*     4.2    17.7    -      -       +      +
   2195B  VAL*     3.6    32.1    -      -       +      +
   2198B  LEU*     4.2    15.7    -      -       +      -
   2217B  ILE*     4.2    19.1    -      -       +      -
   2226B  SER      2.8    20.7    +      -       -      +
   2227B  VAL      3.1     4.2    +      -       -      +
   2229B  VAL*     1.3    78.0    -      -       +      +
   2231B  VAL*     1.3    61.0    +      -       -      +
   2232B  LEU      3.1     1.1    +      -       -      -
   2233B  SER*     3.4    12.4    +      -       -      +
   2236B  ALA*     3.5    29.8    -      -       +      +
   2240B  PHE*     3.7     6.0    -      -       +      -
   2327B  LEU*     4.6     9.0    -      -       +      -
   2341B  PHE*     5.1     0.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL2231 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2217B  ILE*     4.6     0.4    -      -       +      -
   2227B  VAL*     2.9    26.8    +      -       +      +
   2228B  SER*     3.4    12.1    -      -       -      +
   2229B  VAL      3.2     0.4    -      -       -      -
   2230B  LEU*     1.3    76.9    -      -       -      +
   2232B  LEU*     1.3    63.1    +      -       +      +
   2240B  PHE*     3.9    17.0    -      -       +      -
   2243B  ALA*     3.8    27.4    -      -       +      -
   2341B  PHE*     3.2    21.7    -      -       -      -
   2342B  HIS      5.0     4.0    -      -       -      +
   2343B  THR*     6.5     0.4    -      -       -      -
   2344B  VAL*     5.1    10.1    -      -       +      +
   2346B  TYR*     4.5    22.7    -      -       +      -
   2437B  HIS*     5.0    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU2232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2228B  SER*     3.4    16.8    -      -       -      +
   2229B  VAL*     3.1     8.8    +      -       -      +
   2231B  VAL*     1.3    85.9    -      -       +      +
   2233B  SER*     1.3    59.5    +      -       -      +
   2234B  PRO*     3.8     5.4    -      -       -      +
   2250B  ALA*     3.9    23.8    -      -       +      -
   2328B  LEU*     4.1     6.1    -      -       +      -
   2332B  PRO*     4.0    22.9    -      -       +      +
   2335B  LEU*     3.7    31.6    -      -       +      +
   2336B  GLN*     4.0    38.4    -      -       +      +
   2341B  PHE*     3.8    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER2233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2229B  VAL      3.0    14.0    +      -       -      -
   2230B  LEU*     3.4    15.3    +      -       -      +
   2232B  LEU*     1.3    78.4    -      -       -      +
   2234B  PRO*     1.3    67.4    -      -       -      +
   2235B  LEU*     3.1    12.7    +      -       -      +
   2236B  ALA*     3.4    10.1    +      -       -      -
   2237B  LYS      3.7     4.0    +      -       -      -
   2327B  LEU*     2.6    51.5    +      -       -      +
   2328B  LEU*     4.4     0.9    -      -       -      -
   2341B  PHE*     3.2    11.5    -      -       -      -
----------------------------------------------------------
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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