Contacts of the helix formed by residues 401 - 411 (chain Q) in PDB entry 4V1N
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 ILE 401 (chain Q).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
323B VAL 4.8 11.5 - - - +
324B ILE* 6.1 0.7 - - - +
329B THR* 3.8 30.1 - - + -
397Q ALA* 4.6 10.1 - - + +
400Q THR* 1.3 80.9 - - - +
402Q ASP* 1.3 58.7 + - + +
403Q GLU 3.3 1.7 - - - +
404Q ALA* 3.4 13.2 + - - +
405Q GLU* 3.1 30.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 402 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
345B LYS* 5.4 9.9 - - - +
400Q THR 2.8 9.7 + - - +
401Q ILE* 1.3 75.3 - - - +
403Q GLU* 1.3 61.2 + - - +
405Q GLU* 3.8 5.6 + - - +
406Q LYS* 3.3 20.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 403 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
399Q LEU 4.9 5.2 - - - +
400Q THR* 4.0 15.0 - - - -
401Q ILE 3.3 0.4 - - - -
402Q ASP* 1.3 79.2 - - - +
404Q ALA* 1.3 59.0 + - - +
406Q LYS* 3.4 7.1 + - - +
407Q ARG* 3.0 26.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 404 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
323B VAL* 4.2 27.3 - - + +
400Q THR* 5.1 2.9 - - - +
401Q ILE* 3.4 19.8 + - - +
402Q ASP 3.4 0.2 - - - -
403Q GLU* 1.3 77.6 - - - +
405Q GLU* 1.3 59.5 + - - +
407Q ARG* 3.2 8.6 + - - +
408Q MET* 2.9 27.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 405 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
323B VAL* 4.8 5.5 - - + +
324B ILE* 5.4 7.0 - - + -
333B PHE* 5.2 5.6 - - + -
336B ARG* 3.3 35.5 + - - +
337B ARG* 5.6 0.7 + - - -
401Q ILE 3.1 17.2 + - - +
402Q ASP* 4.0 6.7 - - - +
404Q ALA* 1.3 76.7 - - - +
406Q LYS* 1.3 57.7 + - - +
408Q MET* 3.2 10.1 + - - +
409Q ASP* 2.9 27.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 406 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
336B ARG* 5.1 2.2 - - - +
402Q ASP 3.3 13.1 + - - +
403Q GLU* 3.5 11.4 - - - +
404Q ALA 3.2 0.4 - - - -
405Q GLU* 1.3 80.4 - - - +
407Q ARG* 1.3 57.3 + - - +
409Q ASP* 3.2 10.2 + - - +
410Q LYS* 2.9 26.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 407 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
403Q GLU 3.0 14.0 + - - +
404Q ALA* 3.5 11.2 - - - +
406Q LYS* 1.3 75.0 - - - +
408Q MET* 1.3 59.1 + - - +
410Q LYS* 3.2 12.2 + - - +
411Q LYS* 2.9 23.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 408 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
323B VAL* 4.4 16.8 - - + -
404Q ALA 2.9 14.0 + - - +
405Q GLU* 3.2 14.6 - - - +
407Q ARG* 1.3 78.4 - - - +
409Q ASP* 1.4 50.2 - - - +
411Q LYS* 2.5 38.6 - - - +
412Q SER 5.1 0.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 409 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
336B ARG* 5.0 9.4 - - - +
337B ARG* 5.8 2.2 - - - +
405Q GLU 2.9 12.2 + - - +
406Q LYS* 3.3 13.5 - - - +
408Q MET* 1.4 70.1 - - - +
410Q LYS* 1.3 56.7 + - - +
411Q LYS 2.5 29.8 - - - +
412Q SER* 4.4 2.6 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 410 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
406Q LYS 2.9 15.3 + - - +
407Q ARG* 3.2 17.0 - - - +
409Q ASP* 1.3 71.2 - - - +
411Q LYS* 1.3 54.2 + - - +
412Q SER* 5.7 0.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 411 (chain Q).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
407Q ARG 2.9 10.2 + - - +
408Q MET* 2.5 27.0 - - - +
409Q ASP* 2.5 28.2 - - - +
410Q LYS* 1.3 72.9 - - - +
412Q SER* 1.2 67.3 + - - +
----------------------------------------------------------
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