Contacts of the helix formed by residues 1207 - 1219 (chain B) in PDB entry 5XA0


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 ASN1207 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1203B  ARG*     2.5    35.0    +      -       +      +
   1206B  ARG*     1.3    75.3    -      -       -      +
   1208B  MET*     1.3    57.2    +      -       -      +
   1211B  HIS*     2.5    40.8    -      -       -      +
   1250B  GLN*     6.2     2.5    -      -       +      -
   1254B  LEU*     4.3    16.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET1208 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1203B  ARG      4.5     0.4    +      -       -      -
   1207B  ASN*     1.3    77.6    -      -       -      +
   1209B  GLY*     1.3    58.2    +      -       -      +
   1211B  HIS*     4.6     0.9    -      -       -      -
   1212B  ALA*     2.9    34.8    +      -       -      +
   1254B  LEU*     5.0     9.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY1209 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1123B  ARG*     6.0     0.7    -      -       -      -
   1206B  ARG*     4.0    10.8    -      -       -      +
   1207B  ASN      4.1     2.2    -      -       -      +
   1208B  MET*     1.3    79.0    -      -       -      +
   1210B  ALA*     1.3    50.3    +      -       -      +
   1212B  ALA*     4.9     1.6    -      -       -      -
   1213B  VAL*     2.3    41.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1210 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1123B  ARG*     4.7    10.5    -      -       +      -
   1206B  ARG*     2.9    44.0    -      -       +      +
   1207B  ASN*     4.2     0.2    -      -       -      -
   1208B  MET      3.2     0.4    -      -       -      -
   1209B  GLY*     1.3    77.7    -      -       -      +
   1211B  HIS*     1.3    56.8    +      -       -      +
   1213B  VAL*     4.2     1.3    -      -       -      -
   1214B  VAL*     2.4    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS1211 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1207B  ASN*     2.5    26.3    +      -       -      +
   1208B  MET      4.1     1.1    -      -       -      +
   1210B  ALA*     1.3    77.2    -      -       -      +
   1212B  ALA*     1.3    57.6    +      -       -      +
   1214B  VAL*     4.7     0.9    -      -       -      -
   1215B  LEU*     2.8    34.0    +      -       -      +
   1254B  LEU*     4.5    19.1    -      -       +      +
   1255B  LEU*     4.7    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1212 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1208B  MET      2.9    18.0    +      -       -      +
   1209B  GLY*     4.8     1.6    -      -       -      +
   1211B  HIS*     1.3    76.1    -      -       -      +
   1213B  VAL*     1.3    65.4    +      -       -      +
   1215B  LEU*     3.8     3.9    -      -       -      +
   1216B  GLU*     3.0    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1213 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1123B  ARG      5.4     2.9    -      -       -      +
   1126B  VAL      5.0     1.6    -      -       -      -
   1127B  GLU*     4.3    23.9    -      -       +      +
   1130B  GLU*     3.6    13.2    -      -       -      +
   1209B  GLY*     2.3    33.2    +      -       -      +
   1210B  ALA*     4.2     1.3    -      -       -      -
   1212B  ALA*     1.3    77.9    -      -       -      +
   1214B  VAL*     1.3    64.0    +      -       -      +
   1216B  GLU*     3.0    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1214 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1126B  VAL*     4.9    13.9    -      -       +      -
   1130B  GLU*     4.4     7.1    -      -       -      +
   1210B  ALA*     2.4    37.1    +      -       +      +
   1211B  HIS*     4.3     0.7    -      -       -      +
   1213B  VAL*     1.3    74.2    -      -       -      +
   1215B  LEU*     1.3    56.8    +      -       -      +
   1216B  GLU      3.2     0.3    +      -       -      -
   1217B  LEU      3.7     0.7    +      -       -      -
   1218B  LEU*     2.8    28.3    +      -       -      +
   1233B  ILE*     3.5    22.8    -      -       -      +
   1234B  MET      3.7     9.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1215 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1211B  HIS      2.8    22.9    +      -       -      +
   1212B  ALA*     3.8     4.9    -      -       -      +
   1214B  VAL*     1.3    79.3    -      -       -      +
   1216B  GLU*     1.4    58.5    +      -       -      +
   1218B  LEU*     2.8    29.3    +      -       +      +
   1219B  GLN*     3.3     7.4    +      -       -      +
   1220B  ILE      4.6     0.5    +      -       -      -
   1234B  MET*     4.6     3.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1216 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1130B  GLU*     5.1     2.0    -      -       +      -
   1131B  LEU*     5.8     2.5    -      -       -      +
   1212B  ALA      3.0    13.3    +      -       -      +
   1213B  VAL*     3.0    17.4    +      -       -      +
   1215B  LEU*     1.4    76.2    -      -       -      +
   1217B  LEU*     1.3    58.4    +      -       -      +
   1220B  ILE*     3.0    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1217 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1130B  GLU*     2.4    53.7    -      -       -      +
   1131B  LEU*     4.6     0.2    -      -       -      -
   1133B  VAL      3.1     7.1    -      -       -      +
   1134B  TYR*     3.6    17.3    -      -       -      +
   1214B  VAL      3.7     2.4    +      -       -      -
   1216B  GLU*     1.3    76.3    -      -       -      +
   1218B  LEU*     1.3    66.0    +      -       -      +
   1219B  GLN      3.0     2.6    +      -       -      +
   1220B  ILE*     4.0     9.6    +      -       +      +
   1221B  PRO*     4.6     6.9    -      -       +      +
   1230B  MET*     3.7     5.2    -      -       -      +
   1233B  ILE*     4.6     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1218 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1214B  VAL      2.8    15.3    +      -       -      +
   1215B  LEU*     2.8    19.0    +      -       +      +
   1217B  LEU*     1.3    78.3    -      -       -      +
   1219B  GLN*     1.3    59.8    +      -       +      +
   1230B  MET*     2.3    39.9    -      -       -      +
   1231B  GLN*     3.0     4.7    +      -       -      -
   1233B  ILE*     4.2     0.6    -      -       -      +
   1234B  MET*     2.8    41.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN1219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1215B  LEU      3.3     5.2    +      -       -      +
   1218B  LEU*     1.3    86.8    -      -       +      +
   1220B  ILE*     1.3    64.7    +      -       -      +
   1221B  PRO      3.2     7.6    -      -       -      +
   1222B  TYR*     4.7     1.2    +      -       -      -
   1230B  MET*     3.4     8.1    -      -       +      -
   1234B  MET*     5.8     0.4    -      -       +      -
----------------------------------------------------------
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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