Contacts of the strand formed by residues 46 - 51 (chain H) in PDB entry 4XX1
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 GLU 46 (chain H).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37H VAL* 3.1 16.2 - - - +
38H ARG* 2.9 63.2 + - + +
45H LEU* 1.3 75.3 - - - +
47H TRP* 1.3 64.5 + - - +
48H VAL* 3.6 2.4 + - - +
61H GLU* 3.1 23.7 - - - +
63H SER* 4.5 2.9 + - - -
98L PHE* 4.2 0.9 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 47 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35H HIS* 3.1 20.3 + + + -
36H TRP 4.4 3.8 - - - -
37H VAL* 3.9 8.1 - - + -
46H GLU* 1.3 73.7 - - - +
48H VAL* 1.3 62.2 + - - +
49H ALA* 3.1 37.1 + - - -
50H VAL* 3.5 14.8 - - + -
59H PHE* 3.6 25.8 - - + -
60H TYR 3.8 3.1 - - - -
61H GLU* 2.9 51.2 - - + +
113H MET* 4.8 6.7 - - + -
88L GLN* 4.3 5.6 - - - -
95L ALA* 3.7 23.8 - - + +
96L TRP* 3.3 48.4 - + + +
97L VAL* 5.3 0.7 - - - -
98L PHE* 3.7 13.3 - + + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 48 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36H TRP* 2.9 31.4 + - + +
38H ARG* 3.6 42.4 - - + +
46H GLU 3.8 2.0 - - - +
47H TRP* 1.3 78.4 - - - +
49H ALA* 1.3 68.4 + - + +
60H TYR* 3.8 0.7 - - - -
61H GLU* 2.9 46.0 + - - +
64H VAL* 4.0 3.9 - - + +
68H PHE* 4.3 25.6 - - + -
81H LEU* 4.3 5.8 - - + -
94H TYR* 4.2 4.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 49 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35H HIS* 3.5 2.3 - - - -
36H TRP* 3.2 24.1 + - + -
47H TRP* 3.1 21.9 + - - -
48H VAL* 1.3 90.9 - - + +
50H VAL* 1.3 63.6 + - - +
59H PHE 3.5 7.0 - - - -
60H TYR* 3.9 22.0 - - + -
70H ILE* 3.7 19.7 - - + -
81H LEU* 5.0 2.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 50 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
33H GLY* 5.7 0.7 - - - -
34H MET 3.3 9.4 - - - +
35H HIS* 3.4 33.2 - - + +
47H TRP* 3.5 17.9 - - + -
49H ALA* 1.3 79.3 - - - +
51H ILE* 1.3 68.5 + - - +
52H TRP* 4.4 16.4 - - + +
57H ASN 4.8 0.2 - - - -
58H LYS* 3.5 9.8 - - - +
59H PHE* 3.3 43.0 + - + +
70H ILE* 3.8 4.7 - - - +
99H GLU* 4.9 2.9 - - - +
96L TRP* 4.1 15.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 51 (chain H).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
33H GLY* 3.3 1.0 - - - -
34H MET* 2.9 56.8 + - + +
50H VAL* 1.3 76.8 - - - +
52H TRP* 1.3 76.7 + - - +
55H GLY* 4.3 4.7 - - - -
57H ASN 4.2 0.2 - - - -
58H LYS* 3.5 27.1 - - - +
70H ILE* 3.5 19.1 - - + -
71H SER* 3.7 11.7 - - - +
72H ARG* 3.4 44.3 + - + +
79H LEU* 3.8 9.0 - - + -
----------------------------------------------------------
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