Contacts of the helix formed by residues 131 - 141 (chain H) in PDB entry 2FRV
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 PRO 131 (chain H).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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129H ALA 3.4 9.8 - - - +
130H ASP* 1.3 90.7 - - - +
132H ALA* 1.3 53.0 + - + +
134H ALA* 3.6 1.2 - - - +
135H ALA* 2.7 34.8 + - - +
148H THR* 3.7 22.6 - - + +
151H LEU* 3.7 6.9 - - + +
152H LYS* 3.6 39.9 - - + +
155H GLN* 4.0 13.9 - - - +
190H LEU* 4.1 13.7 - - + -
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Residues in contact with ALA 132 (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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130H ASP* 3.1 10.1 + - - +
131H PRO* 1.3 77.6 - - - +
133H LYS* 1.3 63.2 + - - +
135H ALA* 3.8 1.9 - - - +
136H ARG* 3.0 52.5 + - - +
148H THR* 3.6 25.8 - - + +
152H LYS* 5.8 0.2 - - - +
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Residues in contact with LYS 133 (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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451B THR* 4.9 5.1 + - - +
130H ASP* 3.0 27.2 + - + +
132H ALA* 1.3 80.8 - - - +
134H ALA* 1.3 62.5 + - - +
136H ARG* 3.4 21.8 + - - +
137H LEU* 3.2 23.0 + - - +
187H GLU* 3.6 31.8 - - + +
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Residues in contact with ALA 134 (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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130H ASP 2.8 15.0 + - - +
131H PRO 3.6 1.1 - - - +
132H ALA 3.3 0.2 - - - -
133H LYS* 1.3 77.7 - - - +
135H ALA* 1.3 61.7 + - - +
137H LEU* 3.3 5.2 + - - +
138H ALA* 3.0 24.1 + - - +
151H LEU* 3.5 20.2 - - + -
187H GLU* 3.7 29.6 - - + +
190H LEU* 3.6 18.8 - - + -
191H ILE* 3.6 4.3 - - + +
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Residues in contact with ALA 135 (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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131H PRO 2.7 20.9 + - - +
132H ALA 4.1 4.0 - - - +
134H ALA* 1.3 74.7 - - - +
136H ARG* 1.3 61.7 + - + +
138H ALA* 3.5 5.5 + - - +
139H ASN* 3.0 31.6 + - - +
146H THR* 4.2 10.3 - - + +
147H THR* 3.9 7.9 - - - -
148H THR* 3.9 27.6 - - - +
151H LEU* 3.4 10.2 - - + +
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Residues in contact with ARG 136 (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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130H ASP* 5.2 2.0 + - - -
132H ALA* 3.0 41.9 + - - +
133H LYS* 3.8 29.3 - - - +
134H ALA 3.2 0.4 - - - -
135H ALA* 1.3 77.4 - - + +
137H LEU* 1.3 63.1 + - - +
139H ASN* 3.3 10.8 + - - +
140H ASP* 3.1 27.0 + - - +
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Residues in contact with LEU 137 (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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133H LYS* 3.2 14.5 + - + +
134H ALA 3.5 4.7 - - - +
136H ARG* 1.3 82.5 - - - +
138H ALA* 1.3 55.2 + - - +
140H ASP* 2.8 25.8 + - + +
141H LEU* 3.0 28.5 + - + +
185H PRO* 6.3 0.2 - - + -
187H GLU* 4.6 12.3 - - + -
188H VAL* 3.9 28.0 - - + -
191H ILE* 3.8 13.2 - - + -
267H PHE* 6.3 0.2 - - + -
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Residues in contact with ALA 138 (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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134H ALA 3.0 17.7 + - - +
135H ALA* 3.6 6.3 - - - +
137H LEU* 1.3 76.4 - - - +
139H ASN* 1.3 58.8 - - - +
141H LEU* 3.2 20.7 + - - +
142H SER* 3.4 15.9 + - - +
144H LYS 4.7 1.6 - - - +
146H THR* 3.9 25.1 + - + +
151H LEU* 5.2 0.2 - - + -
191H ILE* 3.8 24.2 - - + +
195H HIS* 5.8 4.9 - - + +
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Residues in contact with ASN 139 (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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135H ALA* 3.0 23.9 + - - +
136H ARG* 3.6 8.3 - - - +
138H ALA* 1.3 80.9 - - - +
140H ASP* 1.3 65.4 + - - +
141H LEU 3.2 1.1 - - - -
142H SER 3.3 16.4 - - - +
144H LYS 3.5 3.2 - - - +
145H LYS* 3.4 16.9 - - - +
146H THR* 2.8 47.4 + - - +
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Residues in contact with ASP 140 (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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136H ARG* 3.1 14.5 + - - +
137H LEU* 2.8 16.6 + - + +
139H ASN* 1.3 85.7 - - - +
141H LEU* 1.3 67.3 + - - +
142H SER 3.8 0.2 - - - -
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Residues in contact with LEU 141 (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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137H LEU* 3.0 31.8 + - + +
138H ALA* 3.2 13.0 + - - +
140H ASP* 1.3 88.7 - - - +
142H SER* 1.3 59.9 + - - +
188H VAL* 6.4 1.6 - - + -
191H ILE* 5.1 9.0 - - + -
259H THR* 3.9 26.4 - - - +
260H ASP* 5.4 5.4 - - - +
263H ALA* 3.7 29.8 - - + -
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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