Contacts of the helix formed by residues 1385 - 1390 (chain D) in PDB entry 3FK2
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 ASN1385 (chain D).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1415B LEU* 5.8 6.3 - - + -
1418B THR* 5.2 3.1 - - - +
1419B ARG* 6.0 2.3 - - - +
1422B GLN* 4.9 2.6 + - - +
1277D LEU* 2.8 32.6 + - + +
1278D SER* 3.4 17.0 + - - -
1381D LYS 3.8 2.2 + - - +
1382D VAL 3.2 4.0 + - - +
1383D SER 3.1 1.0 - - - -
1384D HIS* 1.3 79.6 - - - +
1386D ASN* 1.3 57.4 + - - +
1387D LYS* 3.3 4.6 - - - +
1388D VAL* 3.0 27.6 + - - +
1389D ASN* 2.8 38.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN1386 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1383D SER 2.7 24.8 + - - +
1384D HIS* 3.5 4.0 + - - +
1385D ASN* 1.3 74.6 - - - +
1387D LYS* 1.3 75.9 + - - +
1389D ASN* 3.2 9.9 - - - -
1390D LEU* 2.6 30.6 + - - +
1391D MET 3.6 23.1 - - - +
1392D THR* 3.7 23.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS1387 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1384D HIS 5.9 1.6 - - - +
1385D ASN* 3.3 2.2 - - - +
1386D ASN* 1.3 88.5 + - - +
1388D VAL* 1.3 66.7 + - + +
1390D LEU* 4.0 10.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL1388 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1394B GLU* 3.3 26.7 - - - +
1398B ILE* 3.7 22.0 - - + -
1422B GLN* 4.0 8.7 - - - +
1278D SER* 3.5 29.3 - - - +
1280D GLU* 3.9 11.6 - - - +
1385D ASN* 3.0 22.6 + - - +
1386D ASN 3.0 0.4 - - - -
1387D LYS* 1.3 84.5 - - + +
1389D ASN* 1.3 63.8 + - - +
1390D LEU* 3.2 13.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN1389 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1277D LEU 2.9 28.6 + - - +
1278D SER 4.0 6.7 - - - -
1279D THR 3.4 20.0 - - - +
1280D GLU* 4.2 1.1 - - - +
1281D GLY 3.0 22.3 + - - -
1282D ILE* 4.8 3.1 - - + -
1382D VAL* 2.9 40.6 + - - +
1385D ASN* 2.8 21.9 + - - +
1386D ASN* 3.2 5.2 - - - -
1388D VAL* 1.3 72.4 - - - +
1390D LEU* 1.3 68.0 + - - +
1391D MET* 2.9 25.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU1390 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1280D GLU* 3.6 34.3 - - + +
1281D GLY 4.6 2.2 - - - +
1284D ARG* 4.5 19.5 + - - +
1386D ASN* 2.6 31.8 + - - +
1387D LYS 4.0 8.7 - - - +
1388D VAL 3.7 12.1 - - - +
1389D ASN* 1.3 75.0 + - - +
1391D MET* 1.3 60.7 + - - +
1392D THR* 3.4 4.0 + - - +
1395D ASN* 2.9 22.3 + - - -
----------------------------------------------------------
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