Contacts of the helix formed by residues 69 - 75 (chain B) in PDB entry 1JG0
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 69 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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61B TRP* 4.4 5.6 - - + +
68B ASN* 1.3 69.1 - - - +
70B ALA* 1.3 66.1 + - - +
71B TYR 3.2 1.3 - - - -
72B LEU* 2.9 18.3 + - + -
73B HIS* 2.9 57.1 + - + +
80B TRP* 3.9 17.5 - - + -
81B ASP* 4.0 10.1 - - - +
84B ALA* 3.4 24.2 - - + -
85B ASP 5.6 0.2 - - - +
88B GLY* 2.9 28.6 + - - +
90B LEU* 3.7 26.5 - - + -
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Residues in contact with ALA 70 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
68B ASN* 2.9 22.7 + - + +
69B ILE* 1.3 76.8 - - - +
71B TYR* 1.3 64.1 + - - +
73B HIS* 3.2 7.4 + - - +
74B GLU* 2.9 35.7 + - - +
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Residues in contact with TYR 71 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
57B HIS* 2.8 54.4 - + + -
60B LEU* 4.0 19.2 - - + +
61B TRP* 3.8 35.0 - + + -
66B ASP* 4.3 7.8 + - - +
68B ASN 4.3 1.6 + - - -
69B ILE 3.2 1.0 + - - -
70B ALA* 1.3 78.3 - - - +
72B LEU* 1.3 65.0 + - + +
74B GLU* 3.2 18.4 + - - +
75B ASN* 2.9 49.0 + - - +
244B PHE* 4.9 1.4 - - - +
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Residues in contact with LEU 72 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
57B HIS* 4.3 2.0 - - + -
58B GLU* 4.1 24.0 - - + +
61B TRP* 3.9 32.8 - - + -
69B ILE* 2.9 20.0 + - + +
71B TYR* 1.3 88.1 - - + +
73B HIS* 1.3 65.0 + - - +
75B ASN* 3.0 4.0 + - - -
76B ASN 3.0 4.9 + - - -
77B VAL* 2.8 63.8 + - + +
80B TRP* 3.9 31.2 - - + +
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Residues in contact with HIS 73 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
69B ILE* 2.9 40.0 + - + +
70B ALA* 3.7 9.5 - - - +
72B LEU* 1.3 76.3 - - - +
74B GLU* 1.3 63.4 + - - +
75B ASN 3.1 0.7 + - - -
76B ASN* 3.1 13.5 + - - +
77B VAL 4.1 9.2 - - - +
78B THR* 5.3 2.2 - - + -
81B ASP* 2.6 39.7 + - - -
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Residues in contact with GLU 74 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
70B ALA* 2.9 28.9 + - - +
71B TYR* 3.4 21.6 + - - +
72B LEU 3.2 0.2 - - - -
73B HIS* 1.3 77.8 - - - +
75B ASN* 1.3 68.2 + - - +
76B ASN 3.8 0.5 + - - -
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Residues in contact with ASN 75 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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53B ARG* 2.8 26.5 + - - -
57B HIS* 3.6 38.4 + - + +
71B TYR* 2.9 42.6 + - - +
72B LEU* 3.0 4.6 + - - +
74B GLU* 1.3 87.4 + - - +
76B ASN* 1.3 61.7 + - - +
77B VAL* 3.3 4.5 + - + +
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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