Contacts of the strand formed by residues 398 - 402 (chain D) in PDB entry 4OIP
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 ALA 398 (chain D).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
184D GLU* 4.7 3.3 - - - +
201D GLY* 4.9 2.4 - - - -
202D VAL* 3.7 21.8 + - + +
396D VAL* 3.6 12.3 + - + +
397D LYS* 1.3 75.5 - - - +
399D ARG* 1.3 81.9 + - - +
445D ARG* 4.1 19.1 - - + -
446D VAL 3.2 17.5 - - - +
447D VAL* 3.6 13.5 - - + +
448D GLU* 4.3 5.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 399 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
184D GLU* 6.0 0.2 - - - -
202D VAL* 5.0 0.2 - - - -
397D LYS* 5.5 5.1 - - - +
398D ALA* 1.3 87.4 + - - +
400D VAL* 1.3 63.7 + - - +
401D TYR* 3.2 37.2 - - + +
430D ASP* 5.2 3.4 - - + +
431D VAL* 4.0 25.5 - - + +
445D ARG* 3.6 2.5 - - - -
446D VAL* 2.9 34.8 + - + +
448D GLU* 3.2 25.1 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 400 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
182D GLY* 5.0 6.7 - - - +
184D GLU* 4.0 18.8 - - - +
202D VAL* 4.2 28.7 - - + +
204D LEU* 6.1 0.7 - - + -
399D ARG* 1.3 73.1 - - - +
401D TYR* 1.3 70.8 + - - +
402D PRO* 3.8 10.9 - - + +
443D VAL* 4.1 16.8 - - + -
444D VAL 4.1 2.2 - - - -
445D ARG* 4.7 12.6 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 401 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
399D ARG* 3.2 40.0 - - + +
400D VAL* 1.3 78.5 - - - +
402D PRO* 1.3 68.9 - - - +
403D PHE* 4.1 1.9 - - - +
421D LEU* 3.5 25.8 - - + -
427D VAL* 3.9 15.9 - - + +
428D LYS 3.8 11.7 - - - -
429D SER* 4.9 0.4 - - - -
430D ASP* 3.2 55.3 + - - +
431D VAL* 3.9 4.0 + - - +
443D VAL* 3.5 4.3 - - - +
444D VAL* 2.9 42.5 + - + +
446D VAL* 3.8 19.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with PRO 402 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
400D VAL* 3.8 11.0 - - + +
401D TYR* 1.3 91.6 - - - +
403D PHE* 1.3 59.1 + - - +
423D ASP* 4.6 2.9 - - - +
427D VAL* 4.6 11.1 - - - +
442D ASN 3.9 7.0 - - - +
443D VAL* 3.5 16.4 - - + -
----------------------------------------------------------
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