Contacts of the strand formed by residues 195 - 198 (chain 1) in PDB entry 1KZB
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 CYS 195 (chain 1).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1211 LEU* 3.2 31.4 - - + -
1561 PHE* 3.9 15.0 - - + -
1591 ILE 4.0 2.7 - - - -
1601 THR* 4.0 6.5 - - - -
1941 ASN* 1.3 81.0 - - - +
1961 VAL* 1.3 66.7 + - - +
2061 ASP* 3.1 8.5 - - - +
2071 VAL* 2.8 32.0 + - - +
2091 CYS* 2.0 52.0 - - - -
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Residues in contact with VAL 196 (chain 1).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1561 PHE* 3.4 7.5 - - - -
1571 LEU* 2.9 36.8 + - + +
1591 ILE* 3.5 31.7 + - + +
1681 PHE* 3.7 29.6 - - + -
1811 TRP* 3.8 13.7 - - + -
1951 CYS* 1.3 83.0 - - - +
1971 VAL* 1.3 74.5 + - - +
2041 TRP* 4.0 26.5 - - + -
2051 ASN 3.5 8.7 - - - +
2071 VAL 4.7 0.2 - - - +
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Residues in contact with VAL 197 (chain 1).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1541 VAL* 3.6 22.0 - - + -
1551 ALA 3.1 10.8 - - - +
1561 PHE* 3.7 9.2 - - + -
1571 LEU* 4.4 1.8 - - - -
1961 VAL* 1.3 81.5 - - - +
1981 LEU* 1.3 59.1 + - - +
1991 LEU* 4.4 3.8 - - + -
2041 TRP* 3.3 7.8 - - - +
2051 ASN* 2.9 51.5 + - + +
2071 VAL* 3.6 24.7 - - + -
2131 PHE* 3.5 36.1 - - + -
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Residues in contact with LEU 198 (chain 1).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1441 ASN* 3.6 16.2 - - - +
1471 ILE* 3.7 18.8 - - + +
1481 GLN* 3.5 38.6 - - + +
1511 ALA* 5.3 5.6 - - + -
1531 ASP 4.4 1.2 - - - +
1541 VAL* 3.4 5.9 - - - -
1551 ALA* 2.7 34.5 + - + +
1571 LEU* 4.0 16.3 - - + +
1971 VAL* 1.3 69.9 - - - +
1991 LEU* 1.3 70.8 + - - +
2021 GLY* 3.0 33.0 - - - +
2031 LYS 3.6 1.3 - - - -
2041 TRP* 3.5 15.9 - - + +
2161 VAL* 5.9 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
------------------------------------------------------------
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