Contacts of the strand formed by residues 402 - 405 (chain A) in PDB entry 4R1Z
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 ARG 402 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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84A HIS* 3.4 56.5 + - - +
85A LYS 3.2 11.2 + - - +
86A LEU* 3.5 14.0 - - + -
87A LEU 3.0 24.9 + - - -
110A PRO* 4.1 31.7 - - + +
111A ARG 4.5 14.4 + - - +
112A THR* 5.8 2.2 + - - +
225A ASP* 5.5 5.5 + - - -
226A SER* 6.2 2.2 - - - +
383A PRO* 4.9 8.1 - - + -
384A HIS 3.4 4.9 - - - +
385A VAL* 4.4 7.6 - - + -
400A GLY 3.4 5.0 + - - +
401A THR* 1.3 80.9 + - - +
403A VAL* 1.3 60.2 + - - +
404A VAL* 5.1 0.4 - - + -
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Residues in contact with VAL 403 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87A LEU* 3.5 20.0 - - + +
89A VAL* 4.6 7.2 - - + -
98A ILE* 4.2 31.4 - - + -
106A PHE* 4.2 20.6 - - + -
383A PRO* 3.4 3.8 - - - +
384A HIS* 2.7 48.5 + - + +
386A ALA 4.9 0.2 - - - +
397A VAL* 5.0 3.1 - - + -
401A THR* 3.5 16.2 - - - +
402A ARG* 1.3 81.9 - - - +
404A VAL* 1.3 64.6 + - - +
405A ILE* 4.0 12.5 + - + +
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Residues in contact with VAL 404 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
86A LEU* 3.6 26.0 - - + -
87A LEU 2.9 10.5 + - - +
88A ILE* 3.4 14.6 - - + +
89A VAL* 3.0 23.8 + - - -
380A LEU* 3.8 39.0 - - + +
383A PRO* 4.2 20.0 - - + -
402A ARG* 4.9 0.9 - - + -
403A VAL* 1.3 80.8 - - - +
405A ILE* 1.3 67.8 + - - +
406A ASN 3.5 0.5 + - - -
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Residues in contact with ILE 405 (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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89A VAL* 4.0 13.7 - - + +
95A ALA* 3.7 20.9 - - + -
98A ILE* 4.5 13.5 - - + -
99A LEU* 4.5 25.4 - - + -
380A LEU* 3.1 31.3 + - - +
381A LEU* 3.9 20.4 - - + +
382A ILE 5.5 0.6 + - - -
384A HIS* 5.0 4.3 - - + -
403A VAL* 4.0 21.2 + - + +
404A VAL* 1.3 77.0 - - - +
406A ASN* 1.3 63.1 + - - +
407A LEU* 3.3 18.9 + - + +
410A LEU* 4.1 19.3 - - + -
444A LEU* 5.6 0.4 - - + -
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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