Contacts of the strand formed by residues 93 - 97 (chain A) in PDB entry 1AX4
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 93 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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82A LYS* 5.3 4.7 - - - +
91A TYR* 3.5 1.1 - - - +
92A ASP* 1.3 95.0 - - + +
94A ILE* 1.3 66.6 + - - +
277A ALA* 3.1 5.4 - - - +
278A ILE* 2.8 53.6 + - + +
280A ASP* 3.8 31.3 + - - -
282A GLU* 3.5 37.8 + - + +
285A PHE* 3.4 50.0 - + + -
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Residues in contact with ILE 94 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
78A TYR* 3.8 34.5 + - + +
81A LEU* 3.8 22.7 - - + -
82A LYS* 3.5 46.4 - - + +
85A ALA* 3.5 32.3 - - + -
91A TYR 5.4 1.3 - - - +
92A ASP 5.6 0.2 - - - -
93A TYR* 1.3 81.6 - - - +
95A ILE* 1.3 70.0 + - - +
96A PRO* 4.3 3.4 - - + +
275A LEU* 4.0 8.7 - - + -
276A VAL 3.2 7.2 - - - +
277A ALA* 4.1 7.6 - - + -
278A ILE* 6.3 0.2 - - - -
285A PHE* 3.6 10.4 - - - -
289A ARG* 5.0 0.7 + - - -
299A VAL 5.0 1.6 - - - +
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Residues in contact with ILE 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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94A ILE* 1.3 79.2 - - - +
96A PRO* 1.3 82.3 - - + +
106A ILE* 4.2 10.8 - - + -
275A LEU* 4.1 2.2 - - - -
276A VAL* 2.8 48.7 + - + +
278A ILE* 4.6 1.8 - - + -
285A PHE* 3.9 20.9 - - + +
288A ALA* 3.4 35.0 - - + +
289A ARG* 3.7 18.8 - - + +
292A CYS* 3.6 28.9 - - + -
299A VAL* 4.7 4.9 - - - +
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Residues in contact with PRO 96 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
78A TYR* 4.3 10.8 - - + -
81A LEU* 4.5 9.9 - - + -
94A ILE* 4.3 5.2 - - + +
95A ILE* 1.3 100.4 - - + +
97A ALA* 1.3 60.1 + - - +
106A ILE* 4.4 2.4 - - - +
274A GLY 3.9 6.7 - - - +
275A LEU* 4.1 5.6 - - + -
299A VAL 3.5 17.3 - - - +
300A THR 4.3 1.8 - - - -
301A TYR* 3.6 35.7 - - - +
302A GLY* 3.4 15.7 - - - +
304A LEU* 4.3 12.3 - - + -
309A MET* 4.2 13.7 - - - -
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Residues in contact with ALA 97 (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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95A ILE 4.6 1.8 - - - +
96A PRO* 1.3 76.2 - - - +
98A HIS* 1.3 61.4 + - - +
99A GLN 3.2 6.1 - - - +
102A GLY 4.0 3.8 - - - -
103A ALA* 3.5 38.4 - - + +
106A ILE* 4.2 8.5 - - + -
274A GLY 2.9 32.9 + - - +
275A LEU 4.3 0.4 - - - +
296A GLU* 4.1 2.7 - - - +
302A GLY 3.2 8.7 - - - -
304A LEU* 3.5 8.5 - - - +
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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