Contacts of the strand formed by residues 124 - 128 (chain B) in PDB entry 3NTV
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 VAL 124 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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80B THR* 5.9 0.7 - - + -
86B SER* 3.8 44.6 - - - +
90B ALA* 4.1 11.0 - - + -
97B HIS* 5.1 0.2 - - - -
98B VAL* 3.3 12.8 - - + +
100B THR* 3.9 8.7 - - - +
115B LEU* 3.7 37.4 - - + +
120B PHE* 3.1 16.3 + - + +
121B GLU 3.2 16.6 - - - +
122B ASN 5.4 0.2 - - - -
123B GLN* 1.3 83.3 - - - +
125B ARG* 1.3 65.2 + - - +
126B ILE* 4.2 4.7 + - + -
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Residues in contact with ARG 125 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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97B HIS* 3.8 17.5 + - + -
98B VAL 2.9 6.8 + - - +
99B THR* 3.0 33.5 + - - +
100B THR* 2.8 27.5 + - - -
123B GLN 4.3 0.2 - - - -
124B VAL* 1.3 72.8 - - - +
126B ILE* 1.3 61.6 + - - +
127B ILE* 3.7 18.8 + - + +
137B ASN 3.9 12.9 + - - -
138B VAL* 4.0 4.6 - - - +
140B ASP* 2.7 44.0 + - - -
141B LYS* 3.8 13.4 - - - +
143B TYR* 3.1 14.3 + - - -
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Residues in contact with ILE 126 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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80B THR* 4.5 18.8 - - + +
100B THR* 3.4 8.5 - - - +
102B GLU* 4.8 0.7 - - + -
108B ILE* 4.5 15.5 - - + +
111B ALA* 3.8 12.8 - - + -
112B LYS* 3.7 38.6 - - + +
115B LEU* 3.5 31.0 - - + -
124B VAL* 4.1 6.4 + - + -
125B ARG* 1.3 75.6 - - - +
127B ILE* 1.3 68.5 + - - +
128B GLU* 3.8 26.7 + - + +
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Residues in contact with ILE 127 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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99B THR* 3.7 25.6 - - + -
100B THR 2.7 12.7 + - - +
101B ILE* 3.4 8.8 - - + +
102B GLU 2.9 26.7 + - - +
125B ARG* 3.7 31.9 - - + +
126B ILE* 1.3 73.8 - - - +
128B GLU* 1.3 60.5 + - - +
129B GLY 3.7 0.5 + - - -
134B GLN* 3.4 41.1 - - + +
137B ASN* 4.0 28.3 - - + +
138B VAL* 3.8 5.4 - - + -
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Residues in contact with GLU 128 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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102B GLU 3.3 3.8 - - - -
105B GLU* 4.8 8.5 - - - +
108B ILE* 3.7 41.3 - - + +
112B LYS* 3.1 30.6 + - - -
126B ILE* 3.8 13.5 + - + +
127B ILE* 1.3 74.1 - - - +
129B GLY* 1.3 57.9 + - - +
134B GLN* 4.2 11.1 + - - +
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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