Contacts of the strand formed by residues 1073 - 1076 (chain A) in PDB entry 1HKN
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 LEU1073 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1023A LEU* 5.3 0.2 - - + -
1029A GLY 4.8 0.3 - - - +
1030A THR* 5.4 0.7 - - - -
1031A VAL* 4.1 30.9 + - + +
1065A LEU* 4.4 8.1 - - + -
1066A ALA 3.3 14.8 - - - +
1067A MET* 3.8 29.8 - - + -
1071A GLY 3.7 1.0 + - - -
1072A LEU* 1.3 76.8 - - - +
1074A TYR* 1.3 61.9 + - - +
1085A PHE* 4.7 0.4 - - + -
1109A VAL* 4.0 35.9 - - + -
1110A GLY 4.1 14.4 - - - +
1111A LEU* 5.2 1.6 - - + -
1117A CYS* 4.0 33.9 - - + -
1118A LYS 4.4 8.2 + - - +
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Residues in contact with TYR1074 (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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1029A GLY 3.3 11.7 - - - +
1031A VAL* 3.6 9.5 - - - +
1064A TYR 3.6 0.2 - - - +
1065A LEU* 3.7 2.8 - - - -
1066A ALA* 2.8 55.0 + - + +
1067A MET 3.7 1.6 - - - -
1068A ASP* 3.5 28.3 - - + +
1072A LEU* 3.7 14.1 - - + +
1073A LEU* 1.3 76.4 - - - +
1075A GLY* 1.3 70.8 + - - +
1076A SER* 3.5 22.7 - - - -
1080A ASN* 3.8 11.6 + - - -
1082A GLU* 2.7 26.2 + - - +
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Residues in contact with GLY1075 (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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1025A ILE* 3.9 15.9 - - - -
1029A GLY* 2.7 21.9 + - - -
1031A VAL* 3.9 0.8 - - - +
1063A GLN* 3.3 25.8 - - - +
1064A TYR 3.5 5.4 - - - -
1074A TYR* 1.3 80.7 - - - +
1076A SER* 1.3 59.5 + - - -
1077A GLN* 3.9 3.8 + - - +
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Residues in contact with SER1076 (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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1063A GLN* 3.4 3.6 - - - -
1064A TYR* 2.8 43.9 + - - +
1066A ALA* 4.2 0.2 - - - -
1074A TYR* 3.5 23.9 + - - -
1075A GLY* 1.3 71.9 - - - -
1077A GLN* 1.3 64.0 + - - +
1078A THR* 2.6 30.5 + - - -
1080A ASN* 3.5 10.7 + - - -
1083A CYS* 3.7 14.4 - - - -
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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