Contacts of the helix formed by residues 91 - 97 (chain H) in PDB entry 1CVJ
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 PRO 91 (chain H).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28E TYR* 4.3 0.7 - - - +
47G ILE* 3.3 14.1 - - + -
48G THR* 3.7 23.3 - - + -
89H ARG 3.1 11.8 - - - +
90H ASP* 1.3 88.5 - - - +
92H SER* 1.3 65.9 + - - +
93H LEU 3.1 3.1 - - - -
94H ARG* 2.6 42.1 + - + +
95H LYS* 2.7 19.0 + - + -
4T A 4.3 7.9 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 92 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28E TYR* 3.7 9.6 + - - -
32E SER* 3.8 19.7 + - - -
35E GLY 5.4 0.2 - - - -
36E PRO* 4.9 7.4 - - - +
90H ASP* 3.1 28.1 + - - -
91H PRO* 1.3 76.8 - - - +
93H LEU* 1.3 66.7 + - - +
95H LYS* 3.3 8.0 + - - +
96H SER* 2.8 30.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 93 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88H GLN* 6.4 1.8 - - + -
90H ASP 4.4 2.4 + - - +
91H PRO 2.7 4.6 + - - -
92H SER* 1.3 78.1 + - - +
94H ARG* 1.3 54.4 + - + +
95H LYS 2.9 4.7 - - - -
96H SER* 3.3 14.1 - - - +
97H GLY* 2.4 38.3 + - - -
98H VAL* 3.6 23.8 - - + +
126H LEU* 4.2 20.9 - - + -
144H HIS* 3.4 29.1 - - + +
145H PHE 5.0 2.0 - - - +
146H GLU 5.0 7.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 94 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
85H MET* 5.2 1.8 - - - -
88H GLN* 3.0 40.2 + - - +
89H ARG 3.8 3.2 + - - -
90H ASP 4.2 1.6 + - - -
91H PRO* 2.6 37.9 + - + +
93H LEU* 1.3 75.6 - - + +
95H LYS* 1.3 57.1 + - - +
97H GLY* 3.9 4.1 + - - -
144H HIS* 4.4 1.5 - - + +
173H PHE* 6.0 1.7 - - - -
3T A 3.2 90.3 + - + +
4T A 3.0 49.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 95 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28E TYR* 6.6 0.2 - - + -
29E GLU* 5.8 2.2 + - - -
50G ARG* 4.3 19.2 - - - +
91H PRO* 2.7 21.0 + - + +
92H SER* 3.7 7.2 - - - +
94H ARG* 1.3 77.9 - - - +
96H SER* 1.3 57.4 - - - +
97H GLY 3.2 4.7 + - - -
175H SER* 5.3 4.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 96 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
92H SER 2.8 17.8 + - - -
93H LEU* 3.3 18.7 - - - +
95H LYS* 1.3 76.3 - - - +
97H GLY* 1.3 72.0 + - - +
98H VAL* 2.5 21.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 97 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
93H LEU 2.4 19.8 + - - -
94H ARG 3.9 4.5 + - - -
95H LYS 3.2 3.8 - - - -
96H SER* 1.3 74.4 - - - +
98H VAL* 1.3 59.8 + - - +
99H GLY 3.6 1.8 - - - -
100H ASN* 3.7 23.5 + - - +
144H HIS* 3.7 11.9 - - - -
173H PHE* 4.7 12.4 + - - +
3T A 5.3 0.2 - - - -
----------------------------------------------------------
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