Contacts of the helix formed by residues 105 - 111 (chain H) in PDB entry 1LNU
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 CYS 105 (chain H).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9G TYR* 5.2 0.2 - - - -
41H CYS* 2.0 49.6 - - + -
43H PHE* 3.1 44.7 - - - -
50H ILE* 4.1 7.0 - - + -
100H GLU 3.1 10.4 + - - +
101H LEU* 3.4 11.2 - - - +
102H ASP 3.8 0.4 + - - -
103H THR 3.5 2.8 + - - -
104H VAL* 1.3 81.5 - - - +
106H ARG* 1.3 66.9 + - - +
107H HIS 3.2 1.9 - - - +
108H ASN* 3.7 8.8 + - - +
109H TYR 3.2 11.1 + - - -
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Residues in contact with ARG 106 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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47H THR* 3.3 32.2 + - - +
48H GLN 5.7 0.2 + - - -
50H ILE* 3.6 20.5 - - + +
101H LEU* 3.3 20.0 + - - +
102H ASP* 3.2 32.6 + - - +
105H CYS* 1.3 77.1 - - - +
107H HIS* 1.3 59.2 + - - +
109H TYR* 3.8 1.3 - - - +
110H GLU* 2.6 72.5 + - - +
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Residues in contact with HIS 107 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1H PHE* 6.3 0.2 - - + -
2H GLU* 2.8 32.2 + - + +
3H ALA 3.9 0.4 - - - -
4H GLN* 3.5 11.7 + - + +
102H ASP 3.0 18.3 + - - +
103H THR* 3.3 23.1 - - - +
106H ARG* 1.3 77.0 - - - +
108H ASN* 1.3 78.0 + - - +
110H GLU* 3.7 4.8 - - - +
111H GLY* 2.7 34.2 + - - -
112H PRO* 3.7 2.5 - - + +
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Residues in contact with ASN 108 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9G TYR* 3.7 45.1 - - + +
25G PHE* 3.9 4.2 - - - -
3H ALA* 3.3 10.9 - - - +
4H GLN* 2.7 46.4 + - - +
104H VAL 4.6 6.0 + - - -
105H CYS 3.7 10.1 + - - +
106H ARG 3.4 0.4 - - - -
107H HIS* 1.3 86.6 - - - +
109H TYR* 1.3 63.3 + - - +
112H PRO* 3.0 11.5 - - + +
113H GLU* 2.8 32.0 + - - +
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Residues in contact with TYR 109 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5G HIS* 4.2 21.1 - - + -
27G PHE* 5.3 1.1 - + - -
43H PHE* 3.2 62.8 - + + -
46H GLY* 3.6 33.0 + - - -
47H THR* 4.3 13.2 - - + -
105H CYS 3.2 6.5 + - - +
106H ARG* 3.8 4.5 - - - +
108H ASN* 1.3 79.6 - - - +
110H GLU* 1.3 60.1 + - + +
113H GLU* 3.3 15.0 - - + +
114H THR* 2.8 43.8 + - - -
118H LEU* 3.6 32.0 - - + +
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Residues in contact with GLU 110 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1H PHE* 5.2 0.3 - - - -
47H THR* 3.5 28.6 + - + +
106H ARG* 2.6 53.1 + - + +
107H HIS* 4.2 3.9 - - - +
109H TYR* 1.3 77.3 - - + +
111H GLY* 1.3 60.6 + - - +
114H THR* 3.8 10.4 - - - +
115H HIS* 3.7 14.7 + - - -
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Residues in contact with GLY 111 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1H PHE* 3.5 21.7 - - - -
107H HIS* 2.7 17.8 + - - -
109H TYR 3.1 1.6 - - - -
110H GLU* 1.3 74.0 - - - +
112H PRO* 1.3 71.2 - - - +
115H HIS* 2.7 30.5 + - - -
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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