Contacts of the helix formed by residues 144 - 159 (chain K) 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 K).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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24K GLN* 3.0 23.9 + - - -
27K HIS* 5.4 2.0 - - - -
28K MET* 3.4 11.9 - - - -
142K GLY 2.8 9.9 + - - -
143K LYS* 1.3 78.6 - - - +
145K TRP* 1.3 64.2 + - - +
146K GLU* 3.2 4.8 + - - -
147K ALA* 3.5 12.3 + - - +
148K VAL* 4.2 0.9 + - - +
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Residues in contact with TRP 145 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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25K VAL* 5.1 6.7 - - + -
28K MET* 3.5 51.9 - - + +
32K LEU* 4.2 10.9 - - + +
49K VAL* 3.8 19.5 - - + -
50K LEU* 4.3 11.2 - - + -
128K ARG 4.0 2.0 - - - +
129K VAL* 3.8 28.9 - - + -
130K LEU* 3.6 40.4 - - + +
131K THR* 2.7 47.0 + - + +
140K HIS* 4.4 7.9 - - + +
143K LYS 3.7 1.4 - - - +
144K GLY* 1.3 75.3 - - - +
146K GLU* 1.3 60.7 + - - +
148K VAL* 2.7 43.4 + - + +
149K THR* 3.2 11.1 + - - +
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Residues in contact with GLU 146 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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128K ARG* 4.0 23.3 - - + +
129K VAL* 3.3 25.3 - - + +
140K HIS 4.8 0.2 - - - +
141K ARG* 3.8 8.1 - - - +
142K GLY* 2.8 38.9 + - - -
144K GLY* 3.2 2.3 - - - -
145K TRP* 1.3 82.0 + - - +
147K ALA* 1.3 56.5 + - - +
148K VAL 2.9 0.5 + - - -
149K THR* 3.1 9.0 + - - -
150K GLU* 2.7 50.7 + - - +
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Residues in contact with ALA 147 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21K VAL* 3.6 7.5 - - + +
24K GLN* 4.1 21.8 - - + +
144K GLY* 3.5 13.6 + - - +
146K GLU* 1.3 79.3 - - - +
148K VAL* 1.3 60.8 + - - +
150K GLU* 3.7 9.5 + - - +
151K CYS* 3.2 22.5 + - - +
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Residues in contact with VAL 148 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18K LEU* 3.9 22.3 - - + +
21K VAL* 4.2 15.0 - - + -
24K GLN* 4.7 3.4 - - + -
25K VAL* 4.4 26.7 - - + +
28K MET* 4.7 2.2 - - + -
50K LEU* 5.6 2.9 - - + -
53K PHE* 4.5 16.2 - - + -
130K LEU* 5.0 1.6 - - + -
144K GLY 4.4 7.2 - - - +
145K TRP* 2.7 44.6 + - + +
147K ALA* 1.3 69.4 - - - +
149K THR* 1.3 69.5 + - + +
151K CYS* 2.8 15.1 + - - +
152K ALA* 2.9 11.6 + - - +
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Residues in contact with THR 149 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
53K PHE* 5.0 0.7 - - + -
126K LEU* 3.8 17.7 - - + +
127K ASN 3.1 22.4 - - - +
128K ARG* 2.7 44.4 + - - +
130K LEU* 3.7 24.2 - - + -
145K TRP 3.2 3.3 + - - +
146K GLU* 3.1 13.5 + - - -
148K VAL* 1.3 77.3 - - - +
150K GLU* 1.3 61.7 + - - +
152K ALA* 3.1 6.7 + - - +
153K ILE* 3.1 29.7 + - - +
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Residues in contact with GLU 150 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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128K ARG* 4.2 22.8 + - - +
146K GLU* 2.7 33.5 + - - +
147K ALA* 3.7 8.0 - - - +
149K THR* 1.3 73.0 + - - +
151K CYS* 1.3 62.3 + - - +
153K ILE* 3.1 8.0 + - - +
154K ARG* 3.0 47.7 + - - +
178K MET* 3.5 30.2 - - + +
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Residues in contact with CYS 151 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17K ALA 3.9 20.0 - - - -
18K LEU* 4.6 1.6 - - + -
20K PRO* 4.0 18.6 - - - -
21K VAL* 3.5 29.6 - - + -
147K ALA 3.2 11.9 + - - +
148K VAL 2.8 12.3 + - - +
150K GLU* 1.3 75.0 - - - +
152K ALA* 1.3 57.5 + - - +
154K ARG* 3.7 10.6 - - - +
155K ALA* 2.8 31.3 + - - +
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Residues in contact with ALA 152 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14K TRP* 3.6 15.9 - - + -
18K LEU* 4.2 8.0 - - + +
53K PHE* 3.6 34.1 - - + -
124K LEU* 5.7 0.4 - - + -
126K LEU* 4.3 5.8 - - + -
148K VAL 2.9 10.6 + - - +
149K THR* 3.4 10.1 - - - +
151K CYS* 1.3 77.1 - - - +
153K ILE* 1.3 62.9 + - - +
155K ALA* 3.1 8.3 + - - +
156K LEU* 2.9 25.8 + - - +
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Residues in contact with ILE 153 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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63K LEU* 3.9 29.2 - - + -
65K VAL* 5.3 2.2 - - + -
126K LEU* 3.8 20.4 - - + -
128K ARG* 5.0 7.9 - - + -
149K THR 3.1 19.4 + - - +
150K GLU* 3.6 5.6 - - - +
152K ALA* 1.3 70.9 - - - +
154K ARG* 1.3 67.1 + - - +
156K LEU* 2.9 23.1 + - + +
157K ALA* 2.9 12.0 + - - +
163K LEU* 5.3 1.5 - - + +
175K LEU* 3.5 32.8 - - + -
178K MET* 4.3 16.6 - - + -
179K LEU* 4.4 22.7 - - + -
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Residues in contact with ARG 154 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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150K GLU* 3.0 38.4 + - - +
151K CYS* 3.7 12.7 - - - +
153K ILE* 1.3 74.6 - - - +
155K ALA* 1.3 57.7 + - - +
157K ALA* 3.0 9.1 + - - +
158K ALA* 2.9 31.9 + - - +
178K MET* 3.7 47.2 + - + +
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Residues in contact with ALA 155 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17K ALA* 3.7 39.7 - - + +
57K PHE* 3.6 6.9 - - + -
151K CYS* 2.8 20.7 + - - +
152K ALA* 3.2 9.2 - - - +
154K ARG* 1.3 75.9 - - - +
156K LEU* 1.3 60.5 + - - +
158K ALA* 3.6 8.2 + - - +
159K ARG* 3.2 22.2 + - - +
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Residues in contact with LEU 156 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14K TRP* 4.5 5.4 - - + -
57K PHE* 3.6 23.8 - - + -
60K VAL* 3.7 35.4 - - + -
63K LEU* 4.7 9.6 - - + -
124K LEU* 3.7 19.5 - - + -
152K ALA 2.9 12.5 + - - +
153K ILE* 2.9 16.0 + - + +
155K ALA* 1.3 76.0 - - - +
157K ALA* 1.3 64.9 + - - +
159K ARG* 3.2 44.6 + - - +
161K ALA 4.7 2.1 - - - +
163K LEU* 4.0 25.6 - - + +
184K CYS* 4.6 3.1 - - - -
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Residues in contact with ALA 157 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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153K ILE 2.9 11.2 + - - +
154K ARG* 3.0 8.5 + - - +
156K LEU* 1.3 76.4 - - - +
158K ALA* 1.3 63.5 + - - +
159K ARG 3.3 3.1 + - - +
163K LEU* 4.6 1.2 - - - +
178K MET 4.3 4.9 - - - +
179K LEU* 3.9 28.0 - - + -
180K ALA* 4.7 4.5 - - + +
183K ASN* 3.5 21.1 + - - +
184K CYS* 3.5 23.6 - - - -
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Residues in contact with ALA 158 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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154K ARG 2.9 15.8 + - - +
155K ALA* 3.7 8.7 - - - +
156K LEU 3.2 0.2 - - - -
157K ALA* 1.3 73.7 - - - +
159K ARG* 1.3 66.5 + - - +
160K ALA 3.8 0.2 + - - -
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Residues in contact with ARG 159 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57K PHE* 2.9 57.7 + - + -
58K ASP* 3.5 13.6 + - - +
60K VAL* 2.8 27.6 + - - +
155K ALA 3.2 16.1 + - - +
156K LEU* 3.2 26.5 + - - +
157K ALA 3.3 1.8 - - - +
158K ALA* 1.3 82.3 - - - +
160K ALA* 1.3 59.9 + - - +
161K ALA* 3.6 24.4 + - + +
162K PRO 3.4 21.4 + - - -
163K LEU* 4.1 8.7 - - - +
183K ASN* 2.8 23.2 + - - -
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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
------------------------------------------------------------
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