Contacts of the strand formed by residues 48 - 53 (chain C) in PDB entry 2RA2
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 VAL 48 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
8C MSE 4.2 23.1 - - + -
9C HIS 4.0 3.6 - - - +
10C THR* 4.4 1.3 - - + +
11C ASN* 4.9 0.9 - - - -
31C ILE* 4.7 5.6 - - + -
43C ILE* 3.9 25.8 - - + -
44C ASN 3.7 14.4 - - - +
45C ARG* 2.8 14.1 + - - +
46C THR 3.3 1.7 - - - +
47C ASP* 1.3 80.2 - - - +
49C LYS* 1.3 62.4 + - - +
50C GLU 3.8 18.4 - - - +
51C MSE 4.3 10.1 - - + -
30D MSE 3.8 20.0 - - + +
44D ASN* 3.0 28.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 49 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9C HIS* 2.9 17.0 + - + +
10C THR 4.5 5.2 - - - +
11C ASN* 3.4 27.3 - - - +
47C ASP 3.8 2.2 + - - -
48C VAL* 1.3 72.2 - - - +
50C GLU* 1.3 77.7 + - + +
12D ASP* 3.1 31.7 + - - +
14D ARG* 4.1 13.9 - - - +
30D MSE 3.9 1.3 - - - -
43D ILE* 3.6 5.3 - - + +
44D ASN* 3.1 28.3 + - - +
47D ASP* 3.4 19.9 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 50 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
7C VAL 4.7 0.2 - - - -
8C MSE 3.5 2.1 - - - -
9C HIS* 2.9 64.0 + - + +
48C VAL* 3.7 3.7 - - - +
49C LYS* 1.3 93.8 - - + +
51C MSE 1.3 64.8 + - - +
14D ARG* 4.2 21.5 + - - -
30D MSE 3.8 5.2 - - - -
42D GLN 3.3 14.6 - - - +
43D ILE* 4.7 5.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with MSE 51 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6C TYR* 4.2 15.0 - - + -
7C VAL 3.4 13.9 - - - +
8C MSE 3.8 31.2 - - + -
9C HIS* 5.6 0.7 - - - -
21C LYS* 5.4 0.2 - - - -
22C PRO* 3.7 31.0 - - + -
31C ILE* 5.0 5.6 - - + -
48C VAL* 4.3 11.0 - - + -
50C GLU* 1.3 77.3 - - - +
52C VAL* 1.3 68.9 + - - +
28D THR* 4.1 19.5 - - + -
30D MSE 4.5 8.1 - - + -
41D GLN* 4.1 1.4 - - - +
42D GLN* 3.0 61.5 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 52 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6C TYR* 3.4 8.6 - - - -
7C VAL* 2.9 45.6 + - + +
9C HIS* 5.1 8.3 - - + +
51C MSE 1.3 79.5 - - - +
53C ALA* 1.3 76.0 + - + +
56C ASN* 4.1 13.0 - - + -
57C LEU* 4.4 14.6 - - + +
40D LYS 3.8 8.1 - - - +
41D GLN* 3.4 38.6 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 53 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4C PRO* 5.4 7.2 - - + -
5C ASN 3.4 10.8 - - - +
6C TYR* 3.6 22.2 - - + -
52C VAL* 1.3 80.0 - - + +
54C LEU* 1.3 66.2 + - - +
55C GLU* 4.3 7.0 - - + +
56C ASN* 2.9 33.8 + - - +
57C LEU 3.6 4.7 + - - -
40D LYS 5.1 1.4 + - - +
----------------------------------------------------------
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