Contacts of the strand formed by residues 2308 - 2313 (chain C) in PDB entry 1W21


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 PRO2308 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2279C  ALA*     3.9    11.0    -      -       +      -
   2281C  HIS      3.5    21.8    -      -       -      +
   2282C  ILE*     3.5    25.1    -      -       +      -
   2296C  CYS      3.8     0.3    -      -       -      +
   2297C  ILE*     3.5     3.1    -      -       -      -
   2298C  CYS*     2.9    46.0    +      -       +      +
   2299C  ARG      4.4     0.9    -      -       -      -
   2300C  ASP*     3.6    23.1    -      -       +      +
   2306C  ASN      3.8     4.5    -      -       -      +
   2307C  ARG*     1.3    86.2    -      -       -      +
   2309C  VAL*     1.3    60.1    +      -       -      +
   2322C  LYS      3.4     6.7    -      -       -      +
   2323C  TYR*     3.8    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL2309 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2295C  LYS*     4.8     3.4    -      -       +      -
   2296C  CYS      3.3    10.1    -      -       -      +
   2297C  ILE*     4.2    11.7    -      -       +      -
   2307C  ARG      3.9     0.4    -      -       -      +
   2308C  PRO*     1.3    80.3    -      -       -      +
   2310C  ILE*     1.3    72.5    +      -       -      +
   2311C  THR*     4.3     6.6    +      -       -      +
   2320C  THR      4.1     0.2    -      -       -      +
   2321C  SER*     3.3     4.4    -      -       -      -
   2322C  LYS*     2.7    41.6    +      -       +      +
   2323C  TYR      4.3     1.8    -      -       -      -
   2324C  LEU*     3.8    38.6    -      -       +      +
   2362C  LEU*     4.1    24.2    -      -       +      -
   2390C  GLU*     4.4    12.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE2310 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2247C  VAL*     4.2    15.5    -      -       +      -
   2261C  ILE*     4.2     6.1    -      -       +      -
   2275C  LEU*     3.9    15.3    -      -       +      -
   2282C  ILE*     3.8    37.5    -      -       +      -
   2285C  CYS*     4.2     0.9    -      -       -      -
   2294C  ILE      3.8     0.9    -      -       -      +
   2295C  LYS*     3.5     2.8    -      -       -      -
   2296C  CYS*     2.9    37.4    +      -       +      +
   2298C  CYS*     4.2     9.4    -      -       -      -
   2309C  VAL*     1.3    78.6    -      -       -      +
   2311C  THR*     1.3    62.7    +      -       -      +
   2312C  ILE*     3.6    26.8    -      -       +      +
   2319C  HIS*     4.1    15.0    -      -       +      -
   2320C  THR      3.4    10.5    -      -       -      +
   2321C  SER*     4.0    12.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR2311 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2293C  VAL*     3.6    26.2    -      -       +      -
   2294C  ILE      3.5     3.4    -      -       -      +
   2295C  LYS*     4.3    11.3    -      -       +      +
   2309C  VAL*     4.4     4.9    +      -       -      +
   2310C  ILE*     1.3    71.6    -      -       -      +
   2312C  ILE*     1.3    65.6    +      -       -      +
   2313C  ASP      4.2     0.3    +      -       -      -
   2319C  HIS*     3.2     4.0    -      -       -      -
   2320C  THR*     3.0    43.2    +      -       -      +
   2390C  GLU*     4.3    13.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE2312 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2245C  PRO*     4.1    19.3    -      -       +      -
   2247C  VAL*     4.4     6.5    -      -       +      -
   2261C  ILE*     4.1    18.4    -      -       +      -
   2263C  TYR*     3.6    37.7    -      -       +      +
   2293C  VAL*     3.9     6.0    -      -       -      +
   2294C  ILE*     2.7    49.1    +      -       +      +
   2296C  CYS*     4.0    22.2    -      -       -      -
   2310C  ILE*     3.6    24.2    -      -       +      +
   2311C  THR*     1.3    77.9    -      -       -      +
   2313C  ASP*     1.3    66.6    +      -       -      +
   2314C  PRO*     3.3     4.7    -      -       +      +
   2318C  THR      3.6     3.1    -      -       -      +
   2319C  HIS*     4.1     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP2313 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2292C  GLY      4.8     5.3    -      -       -      +
   2293C  VAL*     5.6     1.8    -      -       +      +
   2311C  THR      4.2     0.6    +      -       -      -
   2312C  ILE*     1.3    74.1    -      -       -      +
   2314C  PRO*     1.3    56.7    -      -       -      +
   2315C  GLU*     2.9    22.5    +      -       -      +
   2316C  MET*     3.0    29.2    +      -       -      +
   2317C  MET*     2.7    34.8    +      -       -      -
   2318C  THR*     2.9    24.0    +      -       -      +
----------------------------------------------------------
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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