Contacts of the helix formed by residues 144 - 158 (chain C) in PDB entry 2Q2U
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 ASN 144 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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20C PHE* 3.4 18.1 - - - -
142C ILE 3.7 0.2 - - - -
143C ASN* 1.3 81.3 - - - +
145C ILE* 1.3 67.9 + - - +
146C THR* 2.8 39.7 + - - +
147C GLU* 2.8 38.7 + - - +
148C LEU 3.0 8.5 + - - -
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Residues in contact with ILE 145 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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15C ILE* 3.8 42.2 - - + +
16C GLU* 5.0 12.1 - - + -
20C PHE* 3.3 26.7 - - + -
144C ASN* 1.3 71.5 - - - +
146C THR* 1.3 56.8 + - - +
148C LEU* 3.2 5.6 + - - +
149C LEU* 2.8 49.9 + - + +
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Residues in contact with THR 146 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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144C ASN* 2.8 24.8 + - - +
145C ILE* 1.3 76.7 - - - +
147C GLU* 1.3 67.7 + - + +
149C LEU* 3.2 8.3 + - - +
150C GLN* 2.9 23.0 + - + +
153C ARG* 5.2 2.3 + - - +
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Residues in contact with GLU 147 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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141C GLU 4.3 8.8 - - - +
142C ILE* 4.4 8.1 - - + +
143C ASN* 3.2 45.4 + - - +
144C ASN* 2.8 27.8 + - - +
146C THR* 1.3 79.5 - - + +
148C LEU* 1.3 62.5 + - - +
150C GLN* 3.0 9.6 + - - +
151C TYR* 2.8 22.7 + - - +
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Residues in contact with LEU 148 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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15C ILE* 3.5 28.0 - - + -
18C VAL* 4.1 17.7 - - + -
20C PHE* 4.6 4.5 - - + -
22C CYS* 5.3 1.3 - - - -
24C ALA* 5.4 0.9 - - + -
142C ILE* 3.9 24.1 - - + +
144C ASN 3.0 9.6 + - - +
145C ILE* 3.3 10.1 - - - +
147C GLU* 1.3 75.1 - - - +
149C LEU* 1.3 56.8 + - + +
151C TYR* 2.7 30.3 + - + +
152C GLU 2.8 10.6 + - - +
163C VAL* 4.6 10.8 - - + -
165C ILE* 3.9 26.9 - - + -
187C MET* 3.5 25.6 - - + -
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Residues in contact with LEU 149 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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15C ILE* 4.1 27.8 - - + -
145C ILE* 2.8 35.7 + - + +
146C THR* 3.6 6.7 - - - +
148C LEU* 1.3 73.1 - - + +
150C GLN* 1.3 62.1 + - - +
152C GLU* 3.3 21.7 + - - +
153C ARG* 3.1 38.8 + - - +
187C MET* 5.0 0.9 - - + -
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Residues in contact with GLN 150 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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146C THR* 2.9 15.7 + - + +
147C GLU* 3.2 13.2 - - - +
149C LEU* 1.3 77.8 - - - +
151C TYR* 1.3 58.5 + - - +
153C ARG* 2.6 54.6 + - - +
154C ASP* 2.7 43.2 + - - +
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Residues in contact with TYR 151 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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24C ALA* 3.8 15.6 + - + -
25C THR* 3.1 12.5 - - - -
26C PRO* 3.1 29.3 - - - +
140C VAL* 3.7 32.7 - - + +
142C ILE* 4.5 10.1 - - + -
147C GLU 2.8 10.6 + - - +
148C LEU* 2.7 19.4 + - + +
150C GLN* 1.3 71.7 - - - +
152C GLU* 1.3 61.5 + - - +
154C ASP* 3.0 17.1 + - + +
155C VAL* 3.0 45.3 + - + +
163C VAL* 3.5 33.9 - - + -
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Residues in contact with GLU 152 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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148C LEU* 2.8 7.3 + - - +
149C LEU* 3.6 21.5 - - - +
150C GLN 3.2 0.2 - - - -
151C TYR* 1.3 77.2 - - - +
153C ARG* 1.3 64.6 + - - +
155C VAL* 3.2 8.1 - - + +
156C LEU* 3.0 50.5 + - + +
162C GLY* 6.0 0.9 - - - -
163C VAL* 4.7 6.1 - - + +
187C MET* 3.0 43.7 - - + +
189C GLN* 3.1 39.7 + - - +
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Residues in contact with ARG 153 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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146C THR* 5.2 2.6 + - - +
149C LEU* 3.1 26.9 + - - +
150C GLN* 2.6 60.1 + - - +
152C GLU* 1.3 77.5 - - - +
154C ASP* 1.3 64.3 + - - +
156C LEU* 3.8 7.5 - - + +
157C SER* 3.0 25.3 + - - -
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Residues in contact with ASP 154 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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150C GLN* 2.7 34.5 + - - +
151C TYR* 3.0 22.4 + - + +
153C ARG* 1.3 75.5 - - - +
155C VAL* 1.3 67.7 + - + +
157C SER* 2.7 26.5 + - - -
158C LYS* 3.0 17.8 + - - +
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Residues in contact with VAL 155 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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26C PRO* 3.7 22.2 - - + -
151C TYR* 3.0 43.6 + - + +
152C GLU* 3.2 19.3 - - - +
154C ASP* 1.3 78.3 - - + +
156C LEU* 1.3 68.3 + - + +
158C LYS* 3.1 10.7 + - + +
160C PHE* 3.1 42.4 + - + -
162C GLY 3.9 17.7 - - - +
163C VAL* 4.5 4.5 - - + -
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Residues in contact with LEU 156 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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152C GLU* 3.0 52.1 + - + +
153C ARG* 3.8 6.5 - - + +
155C VAL* 1.3 77.2 - - + +
157C SER* 1.3 58.4 + - - +
159C GLY* 2.6 26.3 + - - -
160C PHE 3.4 22.1 + - - +
161C GLU 4.3 9.9 - - - +
162C GLY* 4.4 10.3 - - - -
189C GLN* 5.4 9.0 - - + +
276C PHE* 6.2 0.9 - - + -
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Residues in contact with SER 157 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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153C ARG 3.0 14.7 + - - -
154C ASP* 2.7 21.2 + - - -
156C LEU* 1.3 77.3 - - - +
158C LYS* 1.3 60.7 + - - +
159C GLY 3.1 3.5 + - - -
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Residues in contact with LYS 158 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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154C ASP* 3.0 19.3 + - - +
155C VAL* 3.5 12.1 - - + +
156C LEU 3.0 1.2 - - - -
157C SER* 1.3 82.7 + - - +
159C GLY* 1.3 61.6 + - - +
160C PHE* 3.9 26.4 - - + -
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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