Contacts of the strand formed by residues 139 - 144 (chain C) in PDB entry 6PAI
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 TYR 139 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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137C ASP 5.2 3.6 - - - -
138C LEU* 1.3 70.2 - - - +
140C LEU* 1.3 59.8 + - - +
141C THR* 5.2 1.1 - - - +
155C PHE 3.5 1.6 - - - +
156C GLY* 3.3 5.9 - - - -
157C PHE* 3.1 47.4 + - + +
158C ASN* 4.7 20.2 - - + -
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Residues in contact with LEU 140 (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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81C LEU* 4.5 9.9 - - + +
93C TYR* 3.8 60.7 + - + +
107C TYR* 3.9 19.3 - - + -
109C LEU* 5.5 0.2 - - + -
128C LEU* 4.1 18.8 - - + -
129C PHE* 4.4 10.5 - - + -
138C LEU* 3.8 7.2 + - + +
139C TYR* 1.3 74.3 - - - +
141C THR* 1.3 71.3 + - - +
142C VAL* 4.2 13.2 - - + -
154C VAL* 3.9 21.3 - - + -
155C PHE 3.3 4.5 - - - +
156C GLY* 5.7 0.2 - - - -
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Residues in contact with THR 141 (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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81C LEU* 5.8 2.0 - - - -
139C TYR* 5.2 1.0 - - - +
140C LEU* 1.3 79.6 + - - +
142C VAL* 1.3 75.0 + - - +
143C CYS* 4.1 15.3 - - - -
153C ILE 4.0 0.2 - - - +
154C VAL* 3.1 4.6 - - - +
155C PHE* 2.8 48.8 + - + +
157C PHE* 5.3 6.8 - - - -
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Residues in contact with VAL 142 (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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81C LEU* 3.7 30.9 - - + +
91C LEU* 4.2 20.0 - - + -
109C LEU* 3.9 12.3 - - + -
140C LEU* 4.2 2.9 - - + -
141C THR* 1.3 81.1 - - - +
143C CYS* 1.3 71.8 + - - +
144C GLU* 5.7 2.9 - - + -
152C VAL* 3.2 28.9 - - + -
153C ILE 3.4 3.4 - - - +
154C VAL* 3.9 22.0 - - + -
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Residues in contact with CYS 143 (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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141C THR* 4.1 16.2 - - - -
142C VAL* 1.3 81.5 - - - +
144C GLU* 1.3 68.2 + - - +
152C VAL* 3.3 7.6 - - - +
153C ILE* 2.5 53.4 + - + +
155C PHE* 4.1 18.4 - - + -
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Residues in contact with GLU 144 (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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83C PHE 3.8 4.3 - - - +
84C SER* 3.2 20.2 - - - -
85C LYS* 2.9 52.8 + - + +
86C CYS* 5.0 0.9 + - - -
91C LEU* 6.4 1.3 - - - -
142C VAL* 5.7 2.5 - - + -
143C CYS* 1.3 80.2 - - - +
145C TRP* 1.3 69.9 + - - +
146C PRO* 4.7 0.3 - - - +
148C ASP 5.3 3.1 - - - +
149C ALA* 5.3 11.2 - - - +
151C LYS 5.0 2.2 - - - -
152C VAL* 4.2 21.9 - - + +
153C ILE* 5.5 0.2 - - - -
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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
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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