Contacts of the strand formed by residues 149 - 153 (chain E) in PDB entry 5IFM
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 SER 149 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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146E HIS* 3.8 19.1 + - - +
147E SER 4.0 0.8 - - - -
148E ALA* 1.3 77.0 - - - +
150E LEU* 1.3 69.7 + - - +
192E ILE* 5.1 0.2 - - - -
193E VAL 3.4 2.9 - - - -
194E GLU* 3.4 31.5 + - - -
226E PRO* 4.0 1.6 - - - +
227E MET* 3.1 41.9 + - - +
229E GLN* 4.4 8.7 + - - +
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Residues in contact with LEU 150 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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149E SER* 1.3 84.8 - - - +
151E THR* 1.3 63.4 + - - +
152E VAL* 4.9 1.8 - - + -
168E PHE* 5.2 2.0 - - + -
192E ILE* 3.4 10.2 - - - +
193E VAL* 2.7 42.0 + - + +
195E PHE* 3.6 30.3 - - + -
198E LYS* 5.9 2.0 - - - +
201E ALA* 3.8 23.6 - - + +
204E ALA* 3.8 3.8 - - + -
205E LEU* 3.9 29.2 - - + -
224E VAL* 3.8 23.8 - - + -
225E GLU 3.4 15.0 - - - +
226E PRO* 4.0 4.7 - - + -
227E MET* 4.0 5.2 - - - +
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Residues in contact with THR 151 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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150E LEU* 1.3 71.6 - - - +
152E VAL* 1.3 64.1 + - - +
153E ARG* 3.9 27.8 - - + +
190E LYS* 4.8 11.4 - - + -
191E GLY 3.5 7.9 + - - +
192E ILE* 5.9 0.2 - - - +
223E THR 3.5 3.3 - - - +
224E VAL* 3.5 2.3 - - - -
225E GLU* 2.8 47.7 + - - +
226E PRO 4.3 5.3 + - - -
227E MET* 3.4 29.7 - - - +
228E ASP 4.6 1.4 + - - -
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Residues in contact with VAL 152 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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150E LEU* 4.7 4.0 - - + +
151E THR* 1.3 76.1 - - - +
153E ARG* 1.3 62.0 + - - +
155E LEU* 3.8 20.0 - - + +
164E LEU* 4.6 2.2 - - + -
168E PHE* 3.9 24.5 - - + -
189E GLY 4.0 0.5 - - - +
190E LYS* 3.2 6.2 - - - +
191E GLY* 2.8 40.6 + - - +
193E VAL* 3.7 33.2 - - + +
222E VAL* 3.7 27.8 - - + -
223E THR 3.2 6.1 - - - +
224E VAL* 4.2 4.5 - - + -
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Residues in contact with ARG 153 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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151E THR* 3.9 15.3 - - + +
152E VAL* 1.3 75.8 - - - +
154E ASN* 1.3 74.6 + - - +
155E LEU 3.3 2.6 + - - -
189E GLY 3.7 4.3 - - - -
190E LYS* 3.6 38.7 - - + +
222E VAL* 3.4 6.8 - - - +
223E THR* 2.8 40.7 + - - +
225E GLU* 3.1 40.4 + - - +
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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