Contacts of the strand formed by residues 221 - 238 (chain A) in PDB entry 1C5G


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 SER 221 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  ARG*     3.1    32.1    +      -       -      +
    210A  ARG      3.2     6.5    +      -       -      -
    211A  LEU*     3.9    13.0    -      -       -      +
    220A  VAL*     1.3    72.9    -      -       -      +
    222A  VAL*     1.3    62.1    +      -       -      +
    223A  PRO*     3.3    11.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  ARG*     4.3     0.4    -      -       -      -
    210A  ARG*     2.8    40.0    +      -       +      +
    213A  HIS*     3.7    30.3    -      -       +      +
    220A  VAL*     3.7    13.0    +      -       +      +
    221A  SER*     1.3    70.5    -      -       -      +
    223A  PRO*     1.3    82.9    -      -       +      +
    224A  MET*     4.3     1.3    -      -       -      -
    299A  PRO*     4.1    11.0    -      -       +      -
    300A  LYS      5.4     1.8    -      -       -      +
    400A  MET*     4.2    20.6    -      -       +      -
    402A  PRO*     3.6    27.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  THR*     5.1     5.6    -      -       +      -
    208A  HIS      3.6     5.4    -      -       -      +
    209A  ARG*     4.1    18.4    -      -       -      +
    221A  SER      3.3    10.5    -      -       -      +
    222A  VAL*     1.3    97.4    -      -       +      +
    224A  MET*     1.3    61.4    +      -       -      +
    300A  LYS*     3.4    54.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  THR*     3.0     8.9    -      -       -      +
    208A  HIS*     2.5    66.8    +      -       +      +
    210A  ARG*     3.7    36.8    -      -       +      +
    222A  VAL*     4.1    11.0    -      -       -      +
    223A  PRO*     1.3    83.3    -      -       -      +
    225A  MET*     1.3    69.8    +      -       -      +
    297A  VAL*     4.8    13.5    -      -       +      -
    298A  LEU      4.0     4.5    -      -       -      +
    299A  PRO*     4.1    21.3    -      -       +      -
    402A  PRO*     3.8    29.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 225 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  PHE*     3.9    26.0    -      -       +      -
    206A  SER      4.2     3.4    -      -       -      -
    207A  THR*     4.2     5.4    -      -       -      +
    224A  MET*     1.3    78.2    -      -       -      +
    226A  ALA*     1.3    64.9    +      -       -      +
    297A  VAL*     3.3     5.8    -      -       -      +
    298A  LEU*     2.9    67.9    +      -       +      +
    299A  PRO      4.2     7.6    -      -       -      +
    300A  LYS*     4.0    13.2    -      -       +      -
    351A  VAL*     4.3     7.0    -      -       +      -
    352A  ASN*     3.4    12.1    -      -       -      +
    353A  GLU*     3.4    52.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  PHE*     3.8     3.8    -      -       -      +
    203A  PRO*     3.2    18.0    +      -       -      +
    206A  SER*     3.2    33.6    -      -       -      +
    208A  HIS*     4.7     4.5    -      -       +      -
    225A  MET*     1.3    78.1    -      -       -      +
    227A  GLN*     1.3    66.3    +      -       -      +
    295A  LEU*     4.6     9.2    -      -       +      -
    296A  LEU      3.2     7.9    -      -       -      +
    297A  VAL*     3.6    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  THR*     3.4    21.9    +      -       -      +
    201A  PRO      2.9    28.3    +      -       -      -
    202A  PHE*     3.8    22.4    -      -       +      +
    203A  PRO*     3.7    13.2    -      -       +      +
    206A  SER*     5.2     1.1    -      -       -      -
    226A  ALA*     1.3    78.6    -      -       -      +
    228A  THR*     1.3    59.6    +      -       -      +
    229A  ASN*     4.2     9.7    +      -       -      +
    231A  PHE*     2.9    36.7    -      -       +      -
    249A  LEU*     4.8     1.2    -      -       -      +
    294A  ARG      3.8     0.5    -      -       -      +
    295A  LEU*     3.6     3.3    -      -       -      +
    296A  LEU*     2.7    34.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  GLN*     1.3    73.3    +      -       -      +
    229A  ASN*     1.3    70.7    +      -       -      +
    293A  PRO*     5.4     4.0    -      -       +      -
    294A  ARG      3.1    21.3    -      -       -      +
    295A  LEU*     3.5    22.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  THR*     4.3    25.9    -      -       -      +
    227A  GLN*     4.6     8.7    -      -       -      +
    228A  THR*     1.3    78.7    +      -       -      +
    230A  LYS*     1.3    83.4    +      -       -      +
    231A  PHE*     3.6    26.5    -      -       +      -
    291A  ARG*     5.0     4.0    +      -       -      -
    293A  PRO*     3.5     3.6    -      -       -      +
    294A  ARG      2.8    30.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  ASN*     1.3    86.4    +      -       -      +
    231A  PHE*     1.3    67.4    +      -       -      +
    291A  ARG*     3.5    64.8    +      -       +      +
    292A  LEU      3.2     4.5    -      -       -      +
    293A  PRO*     3.7    34.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  THR*     4.1    12.3    -      -       -      -
    227A  GLN*     2.9    37.9    -      -       +      -
    229A  ASN*     3.6    35.0    -      -       +      -
    230A  LYS*     1.3    79.0    -      -       -      +
    232A  ASN*     1.3    64.8    -      -       -      +
    233A  TYR*     3.4     4.0    +      -       -      +
    247A  LEU*     3.7    27.4    -      -       +      -
    248A  GLU      4.2    11.2    -      -       -      +
    249A  LEU*     4.6     8.1    -      -       +      -
    250A  PRO*     5.2     4.9    -      -       +      -
    290A  THR      3.2     0.5    -      -       -      +
    291A  ARG*     4.1     4.0    -      -       -      +
    292A  LEU*     2.8    31.9    +      -       -      +
    294A  ARG*     4.0    16.8    -      -       +      +
    296A  LEU*     3.5    33.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  PHE*     1.3    72.1    -      -       -      +
    233A  TYR*     1.3    59.5    +      -       -      +
    247A  LEU*     3.5     5.0    -      -       -      +
    248A  GLU*     3.0    65.3    +      -       +      +
    250A  PRO*     5.6     4.2    -      -       -      +
    286A  LYS*     4.2     8.3    -      -       -      +
    289A  MET*     3.8    18.8    -      -       -      +
    290A  THR*     3.6    19.4    +      -       -      -
    291A  ARG*     3.8    20.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  PHE      4.0     7.4    -      -       -      +
    232A  ASN*     1.3    76.9    -      -       -      +
    234A  THR*     1.3    77.7    +      -       -      +
    235A  GLU*     3.7    30.7    +      -       -      +
    243A  TYR*     5.0     3.5    -      -       -      -
    245A  ASP*     3.4    30.6    +      -       +      +
    246A  ILE      3.4    14.4    -      -       -      -
    247A  LEU*     4.8     4.0    -      -       +      -
    264A  TYR*     5.9     2.8    -      -       -      -
    288A  ASN      4.0     0.5    -      -       -      +
    289A  MET*     3.1     9.5    -      -       -      +
    290A  THR*     3.0    32.0    +      -       -      +
    292A  LEU*     3.9    23.8    -      -       +      -
    294A  ARG*     3.4    44.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  TYR*     1.3    86.1    -      -       -      +
    235A  GLU*     1.3    72.2    +      -       -      +
    236A  PHE*     4.9     0.9    -      -       +      +
    245A  ASP*     3.8     0.2    -      -       -      -
    246A  ILE*     3.0    56.4    +      -       +      +
    285A  TRP*     4.1    13.0    -      -       +      +
    288A  ASN*     2.9    33.7    +      -       -      +
    289A  MET*     3.8    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  TYR*     3.7    27.1    +      -       -      +
    234A  THR*     1.3    82.2    +      -       -      +
    236A  PHE*     1.3    60.6    +      -       -      +
    237A  THR*     5.0     0.9    +      -       -      -
    243A  TYR*     2.9    43.0    +      -       +      +
    244A  TYR      3.7     4.0    -      -       -      -
    292A  LEU*     5.9     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 236 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  THR*     4.0     1.9    -      -       +      -
    235A  GLU*     1.3    73.4    -      -       -      +
    237A  THR*     1.3    76.3    +      -       -      +
    238A  THR*     3.5    18.2    -      -       +      -
    239A  PRO*     5.1     1.6    -      -       +      -
    243A  TYR*     3.3     5.7    -      -       -      -
    244A  TYR*     2.7    50.0    +      +       +      +
    246A  ILE*     3.9    19.5    -      -       +      -
    273A  LEU*     3.3    34.1    -      -       +      -
    276A  ILE*     3.6    18.6    -      -       +      -
    281A  LEU*     3.8    24.2    -      -       +      -
    285A  TRP*     3.8    18.6    -      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  GLU      5.0     1.0    +      -       -      -
    236A  PHE*     1.3    85.8    -      -       -      +
    238A  THR*     1.3    66.9    +      -       -      +
    239A  PRO*     3.7     2.6    -      -       -      +
    241A  GLY*     3.9    10.3    -      -       -      -
    242A  HIS      3.0    24.2    -      -       -      +
    243A  TYR*     3.0    33.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  PHE*     3.5    22.2    -      -       +      -
    237A  THR*     1.3    75.5    -      -       -      +
    239A  PRO*     1.3    59.7    -      -       -      +
    240A  ASP*     2.6    23.9    +      -       -      -
    241A  GLY*     2.6    31.5    +      -       -      -
    242A  HIS*     2.8    27.9    +      -       -      +
    244A  TYR*     3.4    22.7    -      -       +      -
    272A  ALA*     3.5    18.9    -      -       -      +
    273A  LEU*     3.8     4.3    -      -       +      -
    276A  ILE*     3.8     7.0    -      -       +      -
----------------------------------------------------------
 Back to top of page


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