Contacts of the helix formed by residues 44 - 54 (chain N) in PDB entry 2DFS
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 THR 44 (chain N).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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772M ILE* 3.4 27.4 - - + -
776M LYS* 3.3 26.7 - - + +
779M ARG* 4.5 1.1 - - - +
37N ARG* 3.2 6.3 + - - -
43N PRO* 1.4 76.0 - - - +
45N GLU* 1.3 64.7 + - - +
46N ALA* 3.5 7.0 - - + +
47N GLU* 2.7 59.8 + - - +
48N LEU* 3.3 16.5 + - - +
114N GLU* 3.4 11.4 - - - +
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Residues in contact with GLU 45 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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779M ARG* 3.2 23.5 + - - +
30N LYS* 5.2 4.3 + - - -
37N ARG* 2.6 42.5 + - - -
44N THR* 1.3 71.5 - - - +
46N ALA* 1.3 57.8 + - - +
48N LEU* 3.2 26.2 - - - +
49N GLN* 3.0 38.8 + - + +
114N GLU* 2.9 16.4 + - + +
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Residues in contact with ALA 46 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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772M ILE* 6.5 0.9 - - + -
44N THR* 3.5 7.9 - - + +
45N GLU* 1.3 68.6 - - - +
47N GLU* 1.4 59.7 + - + +
49N GLN* 3.0 8.9 + - - +
50N ASP* 2.8 39.5 + - - +
114N GLU* 2.7 19.3 + - - +
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Residues in contact with GLU 47 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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776M LYS* 2.7 23.8 + - - -
43N PRO* 3.3 13.4 - - + +
44N THR* 2.7 55.8 + - - +
46N ALA* 1.4 70.3 - - + +
48N LEU* 1.3 57.0 + - - +
50N ASP* 3.4 11.1 + - - +
51N MET* 2.9 39.6 + - + +
75N LYS* 5.1 2.8 - - - +
78N ASP* 5.4 9.5 - - + +
79N THR* 6.6 0.2 - - + -
82N GLU* 3.9 9.9 - - - +
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Residues in contact with LEU 48 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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29N THR 5.8 0.7 - - - +
30N LYS* 5.0 7.2 - - - +
32N LEU* 3.5 30.5 - - + -
33N GLY* 3.4 42.2 - - - +
36N MET* 3.7 14.6 - - + -
37N ARG* 4.8 1.6 - - - +
43N PRO* 4.9 2.1 - - + +
44N THR 3.3 12.2 + - - +
45N GLU* 3.2 35.4 - - - +
46N ALA 3.3 0.2 - - - -
47N GLU* 1.3 79.0 - - - +
49N GLN* 1.3 72.9 + - - +
51N MET* 3.5 9.5 + - - +
52N ILE* 3.2 26.0 + - + +
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Residues in contact with GLN 49 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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30N LYS* 2.7 32.6 + - - +
45N GLU* 3.0 21.1 + - + +
46N ALA* 3.0 8.9 + - - +
48N LEU* 1.3 95.4 + - - +
50N ASP* 1.3 56.8 + - - +
52N ILE* 3.3 13.6 + - - +
53N ASN* 2.8 36.9 + - - +
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Residues in contact with ASP 50 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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46N ALA* 2.8 27.5 + - - +
47N GLU* 3.6 11.7 - - - +
49N GLN* 1.3 72.2 - - - +
51N MET* 1.4 56.5 + - - +
53N ASN* 3.1 6.8 + - - +
54N GLU* 2.9 39.2 + - - +
75N LYS* 5.2 7.0 - - - +
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Residues in contact with MET 51 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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32N LEU* 5.2 2.2 - - + -
36N MET* 3.4 37.7 - - + +
43N PRO* 5.8 1.3 - - - -
47N GLU* 2.9 26.1 + - + +
48N LEU* 3.6 7.0 - - - +
49N GLN 3.4 0.2 - - - -
50N ASP* 1.4 75.3 - - - +
52N ILE* 1.4 62.9 + - + +
54N GLU* 3.5 19.9 + - - +
55N VAL* 3.7 10.6 - - - +
71N MET* 3.4 50.2 - - + +
72N MET* 4.2 4.0 - - - +
75N LYS* 3.7 29.4 - - + -
79N THR* 4.0 20.6 - - + -
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Residues in contact with ILE 52 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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29N THR* 3.8 36.8 - - + +
30N LYS* 4.8 6.1 - - + +
32N LEU* 3.5 24.7 - - + -
48N LEU* 3.2 15.6 + - + +
49N GLN* 3.7 23.8 - - - +
51N MET* 1.4 74.2 - - - +
53N ASN* 1.3 59.5 + - - +
55N VAL* 2.9 34.8 - - - +
57N ALA* 4.4 21.4 - - + +
63N ILE* 6.5 0.4 - - + -
67N GLU* 6.0 0.2 - - - -
71N MET* 6.0 0.7 - - - -
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Residues in contact with ASN 53 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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49N GLN* 2.8 22.4 + - - +
50N ASP* 3.1 8.0 + - - +
52N ILE* 1.3 74.0 - - - +
54N GLU* 1.3 58.8 + - - +
55N VAL 3.2 7.4 + - - +
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Residues in contact with GLU 54 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50N ASP* 2.9 19.6 + - - +
51N MET* 3.5 12.1 - - - +
52N ILE 3.3 0.2 - - - -
53N ASN* 1.3 76.7 - - - +
55N VAL* 1.3 54.0 + - - +
74N ARG* 2.7 63.4 + - - +
75N LYS* 3.1 35.7 + - - +
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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
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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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