Contacts of the helix formed by residues 1238 - 1243 (chain C) in PDB entry 6RIP
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.
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 LEU1238 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
690C VAL* 5.7 1.3 - - + -
832C HIS* 3.6 29.8 - - + +
1058C ARG* 3.8 26.5 - - + +
1059C ARG 5.3 1.3 - - - +
1064C ASP* 3.6 15.5 - - - +
1234C LYS* 3.6 36.3 - - - +
1235C LEU 4.0 2.0 - - - +
1236C ASN* 3.1 27.2 + - + +
1237C HIS* 1.3 76.7 - - - +
1239C VAL* 1.3 66.3 + - - +
1240C ASP* 3.8 10.5 - - - +
1241C ASP* 2.9 27.9 + - - +
1242C LYS* 3.1 10.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL1239 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1061C GLN* 3.7 29.8 - - + +
1062C PRO 4.5 4.3 - - - +
1063C GLY* 3.9 26.0 - - - +
1064C ASP* 3.4 13.1 + - - +
1237C HIS 3.4 3.6 + - - -
1238C LEU* 1.3 74.6 - - - +
1240C ASP* 1.3 62.0 + - - +
1242C LYS* 2.9 6.7 + - - +
1243C MET* 2.9 30.3 + - + +
354D VAL* 4.1 24.9 - - + +
445D LYS* 3.8 28.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP1240 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1058C ARG* 3.0 52.5 + - - -
1061C GLN* 4.3 12.9 + - - +
1238C LEU* 3.8 8.5 - - - +
1239C VAL* 1.3 80.4 - - - +
1241C ASP* 1.3 62.2 + - - +
1243C MET* 4.4 6.3 - - - +
1262C LYS* 3.4 16.6 + - - -
445D LYS* 3.7 30.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP1241 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
832C HIS* 4.7 7.4 + - - -
834C GLN* 5.8 2.3 + - - -
1058C ARG* 4.0 20.9 + - - -
1236C ASN 5.1 2.6 - - - +
1237C HIS* 6.2 0.2 - - - -
1238C LEU* 2.9 22.2 + - + +
1240C ASP* 1.3 89.1 + - - +
1242C LYS* 1.3 71.7 + - + +
1262C LYS* 3.5 21.9 + - - +
19T C 5.8 3.6 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS1242 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1237C HIS* 3.6 42.7 + - + +
1238C LEU 3.1 9.5 + - - +
1239C VAL 2.9 7.6 + - - +
1241C ASP* 1.3 84.5 - - - +
1243C MET* 1.3 67.2 + - - +
1244C HIS* 3.5 7.3 + - - +
1262C LYS* 4.8 1.6 - - - +
352D ARG* 4.4 7.8 + - - +
353D SER* 5.1 1.8 - - - -
354D VAL* 4.0 25.8 - - + +
465D GLN* 3.1 34.1 - - - +
9R U 5.7 4.0 - - - -
18T T 6.4 2.9 - - + -
19T C 6.0 8.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET1243 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1239C VAL* 2.9 19.1 + - + +
1240C ASP* 4.4 5.1 - - - +
1241C ASP 3.6 0.2 - - - -
1242C LYS* 1.3 79.3 - - - +
1244C HIS* 1.3 67.0 + - - +
1245C ALA* 6.2 0.2 - - + -
1262C LYS* 3.6 18.4 + - - -
352D ARG 3.6 11.0 - - - +
353D SER* 4.2 15.9 - - - -
369D PRO* 4.8 3.1 - - - -
371D LYS* 4.8 11.0 - - + -
372D MET* 4.5 25.8 - - + +
445D LYS* 3.5 61.2 - - + +
----------------------------------------------------------
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