Contacts of the strand formed by residues 142 - 146 (chain C) in PDB entry 5TXN
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 ILE 142 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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35C VAL* 6.2 4.3 - - + -
49C LYS* 4.2 18.6 - - + -
131C THR* 3.5 0.5 - - - -
132C ILE* 2.8 35.2 + - + +
139C THR* 5.5 7.2 - - + -
141C GLY* 1.3 77.7 - - - -
143C ARG* 1.3 67.4 + - - +
144C TYR* 3.4 44.2 - - + +
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Residues in contact with ARG 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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49C LYS* 3.6 6.4 - - - +
50C ILE* 3.2 59.9 + - + +
51C GLY 3.9 8.3 + - - -
52C PRO* 5.1 4.4 - - - +
54C ASN* 2.8 29.9 + - - +
55C PRO 3.6 3.7 + - - -
56C TYR 2.4 33.7 + - - -
57C ASN* 4.5 2.4 + - - +
129C ALA* 3.5 11.1 - - - +
130C PHE 3.1 5.4 - - - +
131C THR* 3.1 33.0 + - + +
141C GLY 4.4 4.7 - - - +
142C ILE* 1.3 77.2 - - - +
144C TYR* 1.3 62.5 + - - +
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Residues in contact with TYR 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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35C VAL* 5.3 5.7 - - + +
38C CYS* 3.5 23.1 - - - +
39C THR* 4.9 1.9 + - - -
42C GLU* 2.4 40.9 + - + -
47C ILE* 3.6 21.3 - - + -
48C SER 3.5 12.3 - - - -
49C LYS* 3.8 15.5 - - + -
50C ILE* 3.7 4.0 - - - -
129C ALA* 3.2 2.1 - - - -
130C PHE* 2.8 57.6 + + + -
132C ILE* 3.9 20.4 - - + -
142C ILE* 3.4 42.2 - - + +
143C ARG* 1.3 77.5 - - - +
145C GLN* 1.3 59.8 + - - +
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Residues in contact with GLN 145 (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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47C ILE* 3.7 3.3 - - - +
48C SER* 3.0 41.4 + - - +
50C ILE* 3.5 23.2 - - + +
54C ASN* 3.6 13.9 + - - +
125C ARG* 3.9 24.7 - - - +
126C LYS* 3.3 23.4 - - - +
128C THR* 3.6 13.0 - - - +
129C ALA* 4.4 3.6 - - - +
144C TYR* 1.3 74.7 - - - +
146C TYR* 1.3 63.9 + - - +
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Residues in contact with TYR 146 (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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41C MET* 4.7 5.8 - - - -
46C LYS* 3.8 24.7 - - + -
47C ILE* 4.2 12.1 - - + -
48C SER* 5.4 0.4 - - - -
73C LYS* 4.3 17.7 - - + -
75C VAL* 3.5 33.7 - - + -
77C PHE* 5.0 5.2 - + - -
116C PHE* 3.8 33.2 - + - -
120C LEU* 3.8 13.6 - - + +
125C ARG* 3.3 33.7 - - - +
128C THR* 3.1 33.6 + - + +
130C PHE* 3.6 26.0 - + - -
145C GLN* 1.3 80.2 - - - +
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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