Contacts of the helix formed by residues 144 - 159 (chain C) in PDB entry 2ZHX
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 GLY 144 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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24C GLN* 2.8 31.8 + - - -
27C HIS* 5.7 0.7 - - - -
28C MET* 3.4 16.1 - - - +
142C GLY 2.9 9.6 - - - -
143C LYS* 1.3 79.1 - - - +
145C TRP* 1.3 62.7 + - - +
146C GLU* 3.4 4.2 + - - -
147C ALA* 3.9 4.3 + - - -
148C VAL* 4.1 2.9 - - - +
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Residues in contact with TRP 145 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
25C VAL* 4.8 7.9 - - + -
28C MET* 3.2 50.5 - - + +
31C PHE* 5.7 0.2 - + - -
32C LEU* 4.1 11.1 - - + +
49C VAL* 3.6 28.3 - - + -
50C LEU* 4.1 12.1 - - + -
128C ARG 4.1 0.9 - - - +
129C VAL* 3.8 20.2 - - + -
130C LEU* 3.6 50.7 - - + +
131C THR* 2.6 34.3 + - + +
140C HIS* 4.8 7.2 - - - +
143C LYS* 3.7 1.4 - - + +
144C GLY* 1.3 76.8 - - - +
146C GLU* 1.3 69.9 + - - +
147C ALA 3.2 0.4 - - - -
148C VAL* 2.9 32.7 + - + +
149C THR* 3.1 14.9 + - - +
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Residues in contact with GLU 146 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
128C ARG* 3.7 31.0 - - + +
129C VAL* 3.2 25.9 - - + +
140C HIS 4.8 0.3 - - - +
141C ARG* 3.5 10.6 + - - +
142C GLY* 3.0 40.2 + - - -
143C LYS 4.1 0.2 + - - -
144C GLY* 3.4 1.5 + - - -
145C TRP* 1.3 80.3 + - - +
147C ALA* 1.3 57.0 + - - +
149C THR* 2.8 9.8 + - - -
150C GLU* 2.8 41.5 + - - +
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Residues in contact with ALA 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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21C VAL* 3.9 7.5 - - + +
24C GLN* 3.4 31.6 - - + +
144C GLY* 3.9 2.9 + - - +
145C TRP 3.2 0.4 - - - -
146C GLU* 1.3 79.3 - - - +
148C VAL* 1.3 63.9 + - - +
150C GLU* 3.7 10.3 - - - +
151C CYS* 3.3 18.9 + - - +
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Residues in contact with VAL 148 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18C LEU* 3.9 21.7 - - + +
21C VAL* 4.0 14.4 - - + -
24C GLN* 4.6 9.0 - - + -
25C VAL* 4.3 30.7 - - + +
28C MET* 4.6 0.9 - - + -
50C LEU* 5.8 0.7 - - + -
53C PHE* 4.7 14.4 - - + -
130C LEU* 5.2 0.7 - - + -
144C GLY 4.1 9.0 - - - +
145C TRP* 2.9 36.6 + - + +
147C ALA* 1.3 74.9 - - - +
149C THR* 1.3 57.7 - - + +
151C CYS* 2.8 27.0 + - - +
152C ALA* 3.0 9.8 + - - +
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Residues in contact with THR 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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53C PHE* 5.0 1.1 - - + -
126C LEU* 3.8 19.5 - - + +
127C ASN 3.2 18.6 - - - +
128C ARG* 2.9 40.8 + - - +
130C LEU* 4.1 16.2 - - + -
145C TRP 3.1 5.0 + - - +
146C GLU* 2.8 17.7 + - - -
148C VAL* 1.3 78.8 - - - +
150C GLU* 1.3 60.3 + - - +
152C ALA* 3.2 11.1 + - - +
153C ILE* 3.0 30.2 + - - +
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Residues in contact with GLU 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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128C ARG* 4.1 22.5 + - - +
146C GLU* 2.8 27.8 + - - +
147C ALA* 3.7 9.4 + - - +
149C THR* 1.3 76.9 + - - +
151C CYS* 1.3 57.7 + - - +
153C ILE* 3.1 7.1 + - - +
154C ARG* 2.9 55.8 + - - +
175C LEU* 5.5 1.6 - - + -
178C MET* 3.6 33.0 - - + +
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Residues in contact with CYS 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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40A ARG* 4.5 11.2 - - - +
17C ALA 3.6 21.5 - - - -
18C LEU* 4.4 1.3 - - - -
20C PRO* 4.1 15.9 - - - -
21C VAL* 3.6 37.9 - - + -
147C ALA 3.3 3.2 + - - +
148C VAL 2.8 14.0 + - - +
150C GLU* 1.3 75.3 - - - +
152C ALA* 1.3 53.6 + - - +
154C ARG* 3.6 10.3 - - - +
155C ALA* 2.8 36.8 + - - +
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Residues in contact with ALA 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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14C TRP* 3.9 12.4 - - + -
18C LEU* 4.0 10.7 - - + +
53C PHE* 3.6 33.2 - - + -
126C LEU* 4.1 7.6 - - + -
148C VAL 3.0 10.3 + - - +
149C THR* 3.3 11.9 - - - +
151C CYS* 1.3 78.3 - - - +
153C ILE* 1.3 61.3 + - - +
155C ALA* 3.5 5.0 + - - +
156C LEU* 3.1 27.5 + - - +
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Residues in contact with ILE 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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63C LEU* 3.9 29.8 - - + -
65C VAL* 4.8 3.4 - - + -
126C LEU* 4.1 16.2 - - + -
128C ARG* 5.6 2.2 - - + -
149C THR* 3.0 18.1 + - - +
150C GLU* 3.1 8.0 + - - +
152C ALA* 1.3 73.9 - - - +
154C ARG* 1.3 68.3 + - - +
156C LEU* 2.9 13.5 + - + +
157C ALA* 2.8 20.8 + - + +
163C LEU* 5.8 3.6 - - + -
175C LEU* 3.5 36.1 - - + -
178C MET* 4.7 10.3 - - + +
179C LEU* 4.1 24.9 - - + -
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Residues in contact with ARG 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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34A ALA* 5.7 0.6 - - - +
37A ALA 5.6 1.4 + - - -
38A ALA* 3.9 32.8 - - + +
40A ARG* 5.5 5.4 - - - +
150C GLU* 2.9 43.9 + - - +
151C CYS* 3.6 11.3 - - - +
153C ILE* 1.3 73.5 - - - +
155C ALA* 1.3 64.6 + - - +
157C ALA* 3.0 11.8 + - - +
158C ALA* 2.9 24.7 + - - +
178C MET* 3.7 45.0 + - + +
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Residues in contact with ALA 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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17C ALA* 3.5 42.8 - - + +
57C PHE* 3.7 5.6 - - + -
151C CYS* 2.8 21.6 + - - +
152C ALA 3.6 5.6 - - - +
154C ARG* 1.3 72.7 - - - +
156C LEU* 1.3 62.2 + - - +
158C ALA* 3.1 18.6 + - - +
159C ARG* 3.4 12.5 - - - +
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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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14C TRP* 4.3 3.1 - - + -
57C PHE* 3.7 19.7 - - + -
60C VAL* 3.6 24.9 - - + -
63C LEU* 4.5 12.6 - - + -
124C LEU* 3.6 26.9 - - + -
152C ALA 3.1 16.6 + - - +
153C ILE* 2.9 13.0 + - + +
155C ALA* 1.3 71.9 - - - +
157C ALA* 1.3 67.7 + - - +
159C ARG* 3.1 58.4 + - - +
161C ALA 4.9 1.9 - - - +
163C LEU* 3.9 23.4 - - + +
184C CYS* 5.0 0.5 - - - -
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Residues in contact with ALA 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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30A GLN* 4.4 2.1 - - - +
153C ILE* 2.8 11.2 + - + +
154C ARG* 3.1 14.8 - - - +
156C LEU* 1.3 77.7 - - - +
158C ALA* 1.3 62.5 + - - +
159C ARG 3.1 3.5 + - - +
163C LEU* 4.4 2.0 - - + +
178C MET 4.2 14.1 - - - +
179C LEU* 4.3 11.0 - - + -
180C ALA* 4.9 3.8 - - + +
183C ASN* 3.4 22.3 + - - +
184C CYS* 3.6 23.7 - - - -
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Residues in contact with ALA 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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27A HIS* 3.4 14.4 + - + -
30A GLN* 3.9 17.7 - - - +
31A PHE* 4.5 16.7 + - + -
34A ALA* 3.9 27.6 - - + -
154C ARG 2.9 12.5 + - - +
155C ALA* 3.4 13.7 - - - +
156C LEU 3.1 0.6 - - - -
157C ALA* 1.3 77.9 - - - +
159C ARG* 1.3 60.7 + - - +
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Residues in contact with ARG 159 (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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27A HIS* 3.6 8.5 - - + -
30A GLN* 3.9 3.3 + - - -
57C PHE* 3.0 57.3 + - + -
58C ASP* 4.1 8.4 + - - +
60C VAL* 2.9 29.3 + - - +
155C ALA 3.4 9.6 - - - +
156C LEU* 3.1 31.4 + - - +
157C ALA 3.6 0.2 - - - +
158C ALA* 1.3 82.1 - - - +
160C ALA* 1.3 57.1 + - - +
161C ALA* 3.3 23.3 + - + +
162C PRO 3.3 20.0 + - - -
163C LEU* 4.0 14.1 - - - +
183C ASN* 2.6 31.5 + - - -
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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