Contacts of the strand formed by residues 91 - 96 (chain A) in PDB entry 1VPW
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 THR 91 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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60A LYS 3.3 8.3 + - - -
61A SER* 3.0 26.2 - - - -
62A ILE* 2.8 26.5 + - - +
85A CYS* 4.9 0.7 - - - -
89A GLY 5.4 0.4 - - - -
90A TYR* 1.3 76.3 - - - +
92A LEU* 1.3 65.1 + - - +
93A ILE* 4.6 8.1 - - + -
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Residues in contact with LEU 92 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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62A ILE* 2.9 28.5 - - + +
64A LEU* 3.7 33.0 - - + +
78A ILE* 5.0 8.7 - - + -
81A VAL* 4.5 9.4 - - + -
82A GLU* 4.7 19.5 - - + +
85A CYS* 4.3 21.9 - - + +
90A TYR 4.2 0.8 + - - -
91A THR* 1.3 75.0 + - - +
93A ILE* 1.3 77.9 + - - +
94A LEU* 3.8 17.8 + - + +
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Residues in contact with ILE 93 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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61A SER* 4.6 7.6 - - - +
62A ILE 3.0 10.1 + - - +
63A GLY* 3.6 5.0 - - - -
64A LEU 2.8 27.0 + - - +
91A THR* 4.6 11.7 - - + -
92A LEU* 1.3 81.5 - - - +
94A LEU* 1.3 64.6 + - - +
95A GLY* 3.7 0.4 + - - -
107A TYR* 5.9 2.9 - - + -
111A MET* 3.8 20.9 - - + +
114A LYS* 4.8 22.7 - - + +
116A VAL* 4.2 20.9 - - + -
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Residues in contact with LEU 94 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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64A LEU* 3.8 21.3 - - + -
66A ALA* 4.3 2.0 - - + -
69A SER* 4.2 20.4 - - - +
78A ILE* 4.1 28.0 - - + -
92A LEU* 3.8 13.7 + - + +
93A ILE* 1.3 79.3 - - - +
95A GLY* 1.3 62.3 + - - +
96A ASN* 3.9 22.4 + - - +
107A TYR* 4.6 5.5 + - - -
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Residues in contact with GLY 95 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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64A LEU 2.7 15.6 + - - +
65A LEU* 3.5 4.7 - - - +
66A ALA 2.7 33.8 + - - +
93A ILE 3.7 1.2 + - - -
94A LEU* 1.3 74.5 - - - +
96A ASN* 1.4 62.0 + - - -
97A ALA 3.9 0.3 + - - -
107A TYR* 3.7 30.1 - - - -
111A MET* 4.2 4.4 - - - +
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Residues in contact with ASN 96 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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66A ALA* 3.4 25.8 - - - +
67A THR 3.8 4.3 - - - +
68A SER* 3.6 19.5 - - - +
69A SER* 3.1 19.9 + - - +
94A LEU* 3.9 16.5 + - - +
95A GLY* 1.4 70.9 - - - -
97A ALA* 1.3 60.6 + - - +
98A TRP* 3.4 30.5 + - - +
103A LYS* 4.3 4.5 - - - +
107A TYR* 3.3 21.4 + - - -
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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