Contacts of the helix formed by residues 97 - 101 (chain J) in PDB entry 3LUE
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 97 (chain J).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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96J VAL* 1.3 80.0 - - - +
98J PRO* 1.3 69.2 - - - +
99J GLU* 3.3 3.4 + - - +
100J GLU* 3.3 32.7 + - + +
101J HIS* 3.2 23.1 + - + +
142T TRP* 5.1 0.4 - - + -
146T LEU* 3.9 5.6 - - + -
150T ILE* 3.6 25.1 - - + -
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Residues in contact with PRO 98 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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8J LEU* 5.7 0.9 - - + -
90J PHE* 3.6 38.6 - - + -
91J TYR* 3.7 27.8 - - + +
96J VAL* 3.7 9.9 - - + +
97J ALA* 1.3 84.4 - - + +
99J GLU* 1.3 61.6 + - - +
100J GLU 3.1 5.9 + - - -
101J HIS* 3.2 22.3 + - + +
103J VAL* 5.6 1.3 - - + +
127J PHE* 3.3 31.2 - - + +
128J ASN 4.0 2.9 - - - +
129J THR* 4.1 7.2 - - + +
130J PRO* 3.5 4.9 - - - +
146T LEU* 4.2 0.2 - - + -
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Residues in contact with GLU 99 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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91J TYR* 4.8 3.6 + - - -
97J ALA* 3.3 0.9 - - - -
98J PRO* 1.3 85.6 - - - +
100J GLU* 1.3 71.0 + - + +
127J PHE 3.8 10.6 - - - +
128J ASN* 3.1 38.7 + - - +
130J PRO* 3.6 13.3 - - - +
146T LEU* 4.4 4.6 - - - +
150T ILE* 3.4 36.6 - - - +
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Residues in contact with GLU 100 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5J ILE* 3.0 25.7 - - + +
97J ALA* 3.3 26.2 - - + +
98J PRO 3.3 0.6 - - - -
99J GLU* 1.3 88.8 - - + +
101J HIS* 1.4 74.1 + - + +
102J PRO* 4.3 0.5 - - - +
130J PRO* 3.9 6.7 - - - -
150T ILE* 3.4 17.4 - - - +
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Residues in contact with HIS 101 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3J ASP 4.2 8.1 - - - -
4J ASP* 4.3 13.0 + - - -
5J ILE* 3.9 24.6 - - + +
6J ALA 2.8 24.4 + - - +
8J LEU* 3.7 31.9 - - + +
21J PHE* 5.3 1.1 - + - -
96J VAL* 3.9 22.5 - - + +
97J ALA 3.2 27.4 + - - +
98J PRO 3.2 8.8 + - - +
100J GLU* 1.4 88.7 + - + +
102J PRO* 1.3 70.4 - - - +
103J VAL* 4.2 1.6 - - - +
129J THR* 3.4 4.7 - - - +
130J PRO* 3.0 17.0 - - - +
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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