Contacts of the strand formed by residues 1283 - 1287 (chain A) in PDB entry 2R92
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 VAL1283 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
706A HIS* 4.8 21.1 - - + +
707A GLY* 5.9 2.5 - - - -
1135A ARG* 5.4 0.9 - - - +
1281A ARG* 5.3 3.6 - - + -
1282A VAL* 1.3 80.6 - - - +
1284A MET* 1.3 82.5 + - - +
1285A MET* 5.4 3.6 - - + -
1306A LEU* 3.4 10.0 - - - +
1307A GLU* 3.0 41.4 + - + +
1308A THR 5.9 0.4 - - - +
1309A ASP* 5.2 8.7 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with MET1284 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1128A GLN* 3.7 20.4 - - - +
1131A ALA* 3.5 28.7 - - + -
1132A LYS* 4.0 24.9 - - + -
1135A ARG* 4.0 28.5 - - + +
1283A VAL* 1.3 86.0 - - - +
1285A MET* 1.3 78.0 + - - +
1304A TRP* 3.9 20.9 - - + -
1305A VAL 3.5 4.5 - - - +
1306A LEU* 3.5 18.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with MET1285 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1283A VAL* 5.4 3.6 - - + -
1284A MET* 1.3 86.4 - - - +
1286A LYS* 1.3 68.0 + - + +
1287A TYR* 3.4 37.3 + - + -
1304A TRP* 3.0 12.5 - - - -
1305A VAL* 2.6 44.1 + - - +
1307A GLU* 3.4 26.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS1286 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1285A MET* 1.3 81.9 - - - +
1287A TYR* 1.3 65.3 + - - +
1288A ASP* 3.9 4.0 + - - +
1302A PRO* 4.9 16.6 - - + +
1303A GLU 4.0 3.6 - - - -
1304A TRP* 3.5 52.7 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR1287 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1117A THR* 4.0 25.2 + - + +
1119A TYR* 4.4 17.5 - + + -
1285A MET* 3.4 34.1 + - + -
1286A LYS* 1.3 75.4 - - - +
1288A ASP* 1.3 66.6 + - - +
1289A ARG* 5.8 0.7 - - + -
1302A PRO* 3.2 6.5 - - - +
1303A GLU* 3.1 43.6 + - + +
1305A VAL* 4.3 16.2 - - + -
1307A GLU* 3.0 33.0 + - + +
----------------------------------------------------------
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