Contacts of the strand formed by residues 38 - 42 (chain D) in PDB entry 2XLR
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 GLU 38 (chain D).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5D SER 3.9 19.7 + - - +
6D MET 4.9 2.7 - - - +
7D ALA 5.5 1.8 - - - +
8D THR 3.1 11.0 + - - +
9D ARG* 3.8 29.4 + - + +
10D ILE* 2.8 27.9 + - - +
37D PRO* 1.3 73.4 - - - +
39D LEU* 1.3 64.6 + - - +
40D VAL* 6.0 0.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 39 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
10D ILE* 3.6 22.0 - - + +
12D ILE* 4.8 4.7 - - + -
23D LEU* 4.0 25.8 - - + +
26D PHE* 3.9 46.2 - - + -
27D GLN 5.6 0.2 - - - +
36D ILE* 4.6 5.8 - - + -
37D PRO 3.7 12.8 - - - +
38D GLU* 1.3 82.1 - - - +
40D VAL* 1.3 67.9 + - - +
124D TYR* 3.6 53.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 40 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9D ARG* 4.6 12.3 - - + +
10D ILE 2.9 6.9 + - - -
11D ALA* 3.3 4.5 - - - +
12D ILE* 2.7 26.6 + - - +
38D GLU* 5.7 1.3 - - + -
39D LEU* 1.3 81.3 - - - +
41D CYS* 1.3 64.1 + - - +
42D PHE* 3.5 35.1 - - + -
124D TYR 3.7 5.2 - - - +
126D ARG* 3.9 34.1 - - - +
160D PHE* 3.9 25.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 41 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12D ILE* 3.2 20.9 - - + +
14D GLY 3.4 29.8 - - - -
15D ALA* 4.3 8.5 - - - -
19D GLY 5.3 0.4 - - - -
23D LEU* 4.3 16.6 - - + -
40D VAL* 1.3 75.3 - - - +
42D PHE* 1.3 61.5 + - - +
124D TYR* 3.0 13.2 + - - +
125D ILE* 3.4 24.0 - - + +
126D ARG* 2.8 34.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 42 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
11D ALA* 4.3 6.3 - - + -
12D ILE 2.9 12.2 + - - +
13D LEU* 4.3 17.9 - - + -
14D GLY* 2.6 33.3 + - - -
40D VAL* 3.5 28.5 - - + -
41D CYS* 1.3 76.2 - - - +
43D GLU* 1.3 59.3 + - - +
126D ARG* 3.8 11.0 - - + -
129D THR* 3.7 25.1 - - + +
131D VAL* 3.8 17.7 - - + -
145D VAL* 4.1 16.6 - - + -
147D VAL* 3.9 23.6 - - + -
156D TYR* 3.9 22.2 - + - -
158D ALA* 5.6 2.2 - - + -
160D PHE* 4.1 20.9 - + - -
500D FAD 3.7 4.8 - - - -
----------------------------------------------------------
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