Contacts of the strand formed by residues 1346 - 1348 (chain B) in PDB entry 1Y8Z
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 ILE1346 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1289B PHE* 4.5 1.3 - - + -
1318B ILE* 3.7 27.1 - - + -
1319B PRO 3.0 12.3 + - - +
1320B VAL* 3.2 12.7 - - + -
1321B PHE 2.9 24.3 + - - -
1344B GLY 4.6 2.2 - - - +
1345B ILE* 1.3 73.4 - - - +
1347B TRP* 1.3 60.7 + - - +
1348B PHE 3.3 2.9 + - - -
1356B THR* 4.0 28.5 - - + +
1359B ARG* 4.3 28.7 - - + +
1360B ILE* 4.0 29.4 - - + +
1363B LEU* 3.8 18.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TRP1347 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1305B LEU* 6.1 0.2 - - + -
1321B PHE* 3.5 35.4 - + + -
1322B TRP 3.6 16.4 - - - -
1323B LYS* 4.0 22.6 - - + +
1325B THR* 5.4 1.8 - - + -
1326B GLY* 3.3 29.6 - - - -
1338B LEU* 4.0 27.6 + - + -
1339B THR* 3.5 36.7 + - + +
1341B HIS 5.0 2.8 + - - -
1343B SER* 4.2 6.7 + - - -
1345B ILE* 3.5 42.3 + - + +
1346B ILE* 1.3 73.1 - - - +
1348B PHE* 1.3 66.0 + - - +
1349B ASP* 3.2 7.8 + - - +
1356B THR* 3.9 4.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE1348 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1213B GLN* 4.1 21.8 - - + -
1217B PHE* 3.7 29.8 - + + -
1291B TYR* 4.6 4.0 - + - -
1293B LEU* 3.8 24.2 - - + -
1320B VAL* 3.8 16.2 - - + -
1321B PHE 2.6 17.9 + - - +
1322B TRP* 3.8 33.5 - + - -
1323B LYS* 3.1 22.4 + - - +
1346B ILE 3.3 3.2 + - - -
1347B TRP* 1.3 69.4 - - - +
1349B ASP* 1.3 60.4 + - - +
1350B GLU* 3.9 19.0 + - + -
1353B MET* 4.0 22.0 - - + -
1356B THR* 3.7 22.4 - - + -
----------------------------------------------------------
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