Contacts of the strand formed by residues 131 - 135 (chain D) in PDB entry 1PL8
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 PHE 131 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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6D PRO* 4.1 21.3 - - + -
7D ASN 3.3 27.4 - - - -
8D ASN* 2.8 28.9 + - - +
26D ILE* 4.0 16.4 - - + -
27D PRO* 3.7 16.9 - - + +
35D LEU* 4.0 24.0 - - + -
36D LEU 3.2 14.8 - - - +
37D ARG* 3.9 24.7 - - + -
76D GLU* 3.9 27.4 - - + -
129D CYS* 3.3 8.9 - - - -
130D ARG* 1.3 81.4 - - + +
132D TYR* 1.3 62.3 + - - +
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Residues in contact with TYR 132 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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27D PRO* 4.4 3.6 - - + -
35D LEU* 3.9 3.6 - - - -
36D LEU* 2.7 44.0 + - + +
38D MET* 3.7 24.7 - - + +
93D ILE* 4.3 9.6 - - + -
117D PHE* 3.2 15.7 - + - -
119D CYS* 2.9 24.7 - - - -
125D ASP* 4.0 9.6 - - + -
126D GLY 3.7 25.1 - - - -
127D ASN* 3.6 17.9 - - + -
129D CYS* 4.0 6.3 - - - -
131D PHE* 1.3 77.9 - - - +
133D LYS* 1.3 72.7 + - - +
134D HIS* 2.8 38.1 + + + -
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Residues in contact with LYS 133 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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27D PRO* 3.9 25.2 - - + +
28D GLU 3.2 29.6 + - - +
29D PRO* 3.8 6.1 - - + -
33D GLU* 3.2 32.5 - - + +
34D VAL 3.1 13.5 - - - +
35D LEU* 4.2 5.8 - - + +
117D PHE* 5.8 0.5 - - - -
132D TYR* 1.3 94.4 + - - +
134D HIS* 1.3 61.6 + - - +
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Residues in contact with HIS 134 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33D GLU* 3.2 7.8 - - - +
34D VAL* 3.0 28.9 + - - +
36D LEU* 4.1 4.5 - - + -
93D ILE* 3.6 18.6 - - + -
94D GLU 2.7 28.0 + - - -
95D PRO* 3.8 17.5 - - + -
97D ALA* 4.2 7.8 - - + +
117D PHE* 3.9 11.2 - + - -
119D CYS* 4.2 0.2 - - - -
132D TYR* 2.8 36.6 + + + -
133D LYS* 1.3 76.7 - - - +
135D ASN* 1.3 86.1 + - + +
138D PHE* 3.7 15.3 - - + +
139D CYS* 3.8 13.5 - - - -
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Residues in contact with ASN 135 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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32D ASN* 3.7 20.9 + - - +
33D GLU* 4.3 9.1 + - - +
97D ALA* 4.3 20.9 - - + -
98D PRO 5.6 4.3 + - - +
134D HIS* 1.3 85.9 + - - +
136D ALA* 1.3 59.4 + - - +
137D ALA* 2.8 38.5 + - - +
138D PHE* 3.0 27.6 + - + -
139D CYS* 3.7 2.9 - - - -
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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