Contacts of the helix formed by residues 126 - 139 (chain m) in PDB entry 6QXT
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 PHE 126 (chain m).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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121m LEU* 2.9 17.2 + - + +
122m GLY* 4.6 2.1 + - - -
124m CYS* 3.4 5.1 - - + +
125m SER* 1.3 76.0 - - - +
127m PHE* 1.3 60.8 + - - +
128m GLU 3.5 0.2 - - - -
129m LYS* 4.0 21.8 - - + +
130m SER* 3.2 27.9 + - - -
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Residues in contact with PHE 127 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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125m SER 3.9 2.6 + - - -
126m PHE* 1.3 71.8 - - - +
128m GLU* 1.3 61.0 + - - +
130m SER* 4.5 1.1 - - - -
131m GLN* 2.8 32.4 + - - +
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Residues in contact with GLU 128 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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126m PHE 3.5 0.2 - - - -
127m PHE* 1.3 78.5 - - - +
129m LYS* 1.3 58.4 + - - +
131m GLN* 3.5 4.4 + - - +
132m SER* 2.9 29.8 + - - -
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Residues in contact with LYS 129 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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121m LEU* 4.7 6.7 - - + -
126m PHE* 4.0 20.0 + - + +
127m PHE 3.4 0.4 - - - -
128m GLU* 1.3 78.2 - - - +
130m SER* 1.3 60.4 + - - +
132m SER* 3.3 5.3 + - - -
133m ILE* 2.9 30.0 + - - +
159m THR* 4.6 21.1 - - - -
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Residues in contact with SER 130 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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118m SER* 3.5 28.9 - - - +
121m LEU* 3.6 14.9 - - - +
122m GLY* 3.8 7.2 - - - -
126m PHE 3.2 20.6 + - - -
127m PHE* 4.5 1.3 - - - -
129m LYS* 1.3 77.2 - - - +
131m GLN* 1.3 58.6 + - - +
133m ILE* 4.5 4.9 - - - -
134m MET* 2.9 29.5 + - - +
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Residues in contact with GLN 131 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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127m PHE 2.8 23.1 + - - +
128m GLU* 3.8 5.2 - - - +
130m SER* 1.3 75.4 - - - +
132m SER* 1.3 58.8 + - - +
134m MET* 3.5 6.7 + - - +
135m GLU* 2.9 26.3 + - - +
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Residues in contact with SER 132 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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128m GLU 2.9 17.9 + - - -
129m LYS* 3.3 6.0 + - - -
131m GLN* 1.3 75.6 - - - +
133m ILE* 1.3 61.0 + - - +
135m GLU* 3.1 9.1 + - - +
136m LEU* 2.9 27.0 + - - +
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Residues in contact with ILE 133 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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114m ILE* 4.8 9.2 - - + +
117m GLN* 5.2 6.1 - - + -
118m SER* 4.4 19.3 - - - +
121m LEU* 6.2 0.7 - - + -
129m LYS 2.9 17.0 + - - +
130m SER* 4.1 4.7 - - - +
132m SER* 1.3 75.6 - - - +
134m MET* 1.3 57.2 + - - +
136m LEU* 3.3 8.5 + - - +
137m TYR* 2.9 26.9 + - - +
152m SER* 5.2 14.9 - - - +
155m ILE* 6.5 0.7 - - + -
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Residues in contact with MET 134 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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118m SER* 4.2 10.9 - - - -
130m SER 2.9 20.9 + - - +
131m GLN* 3.7 7.4 - - - +
133m ILE* 1.3 75.4 - - - +
135m GLU* 1.3 59.1 + - - +
137m TYR* 3.2 9.6 + - - +
138m HIS* 2.9 29.1 + - - +
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Residues in contact with GLU 135 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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131m GLN 2.9 14.5 + - - +
132m SER* 3.1 11.6 + - - +
134m MET* 1.3 77.5 - - - +
136m LEU* 1.3 56.8 + - - +
138m HIS* 3.3 7.2 + - - +
139m GLY* 2.9 24.8 + - - -
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Residues in contact with LEU 136 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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114m ILE* 5.6 1.6 - - + -
132m SER 2.9 12.6 + - - +
133m ILE* 3.7 10.5 - - - +
135m GLU* 1.3 76.1 - - - +
137m TYR* 1.3 57.9 + - - +
139m GLY* 3.3 3.6 + - - +
140m LEU* 3.0 27.7 + - - +
148m ARG* 3.9 32.9 - - + +
151m HIS* 6.1 1.8 - - + -
152m SER* 4.9 7.6 - - - +
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Residues in contact with TYR 137 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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111m ALA* 5.0 11.9 - - + +
114m ILE* 4.2 22.4 - - + +
115m LEU* 4.7 11.9 - - + +
133m ILE 2.9 14.1 + - - +
134m MET* 3.2 13.2 + - - +
136m LEU* 1.3 77.5 - - - +
138m HIS* 1.3 60.1 + - - +
139m GLY 3.4 0.3 + - - -
140m LEU* 3.5 18.4 + - - +
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Residues in contact with HIS 138 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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134m MET 2.9 15.8 + - - +
135m GLU* 3.3 7.6 + - - +
137m TYR* 1.3 76.5 - - - +
139m GLY* 1.3 58.3 + - - +
140m LEU 3.5 3.4 + - - +
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Residues in contact with GLY 139 (chain m).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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135m GLU 2.9 15.2 + - - -
136m LEU* 3.3 5.1 + - - -
137m TYR 3.2 0.4 - - - -
138m HIS* 1.3 78.0 - - - +
140m LEU* 1.3 63.6 + - - +
141m GLU* 3.5 6.9 + - - +
146m SER* 5.5 5.9 - - - -
148m ARG* 5.2 4.6 - - - +
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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