Contacts of the strand formed by residues 129 - 132 (chain L) in PDB entry 1IJ4
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 ILE 129 (chain L).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
105L THR* 4.3 18.8 - - + -
106L LYS 2.8 21.5 + - - +
107L VAL* 3.6 15.4 - - + +
108L LEU 3.0 22.8 + - - +
127L ASP 3.9 12.1 - - - +
128L ILE* 1.3 67.2 - - - +
130L ARG* 1.3 59.4 + - - +
131L TYR* 3.7 9.6 + - + -
153L SER* 3.6 9.2 - - - +
159L PHE* 3.5 33.4 - - + -
176L LEU* 4.9 5.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 130 (chain L).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
86L ILE* 4.3 16.2 - - - -
108L LEU* 3.4 30.3 - - + +
110L ILE* 4.5 7.9 - - + -
122L ILE* 4.0 18.4 - - - +
125L ALA 2.9 22.4 + - - -
126L LYS* 3.2 34.4 + - - +
128L ILE* 3.1 21.0 + - + +
129L ILE* 1.3 70.1 - - - +
131L TYR* 1.3 61.5 + - - +
150L LYS 5.4 0.4 + - - -
151L PHE 3.1 29.9 + - - +
152L ALA* 3.1 28.0 + - - +
153L SER* 2.8 43.6 + - - +
159L PHE* 3.5 7.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 131 (chain L).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
107L VAL* 4.1 18.2 - - + -
108L LEU 2.9 10.3 + - - +
109L ILE* 3.5 15.2 - - + -
110L ILE* 2.9 30.0 + - - +
129L ILE* 4.1 4.0 - - + -
130L ARG* 1.3 72.4 - - - +
132L ILE* 1.3 59.8 + - - +
133L ILE* 4.1 11.2 - - + -
152L ALA* 4.8 0.4 - - - -
158L GLU 4.5 5.4 - - - -
159L PHE* 3.6 46.8 - + - +
160L VAL 5.0 0.4 - - - -
161L LYS* 5.4 0.9 - - + -
172L LEU* 3.7 24.5 - - + -
175L GLU* 2.5 29.3 + - - -
176L LEU* 3.4 42.6 - - + +
179L LYS* 3.3 11.1 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 132 (chain L).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110L ILE* 3.6 25.8 - - + +
112L THR* 5.0 3.6 - - + -
130L ARG 4.2 0.6 + - - -
131L TYR* 1.3 71.5 - - - +
133L ILE* 1.3 61.6 + - - +
134L GLY 4.1 1.1 + - - -
138L HIS* 3.9 28.0 - - + +
139L PHE* 5.0 2.3 - - - -
147L THR* 3.7 22.2 - - - +
148L LEU* 3.7 35.2 - - + +
151L PHE* 3.8 25.8 - - + -
152L ALA* 4.1 6.4 - - + +
159L PHE 3.1 17.7 + - - +
160L VAL* 3.7 7.7 - - + +
161L LYS 3.5 20.4 + - - +
----------------------------------------------------------
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