Contacts of the strand formed by residues 1025 - 1028 (chain D) in PDB entry 4DAJ
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 TYR1025 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1017D ILE* 3.9 15.0 - - + -
1018D TYR 3.6 9.0 - - - +
1019D LYS* 3.5 36.5 + - + -
1023D GLY 4.7 6.7 - - - -
1024D TYR* 1.3 71.1 - - - +
1026D THR* 1.3 54.0 + - - +
1032D LEU* 3.5 2.4 - - - +
1033D LEU* 2.8 36.1 + - + +
1034D THR* 2.9 24.6 + - + +
1035D LYS 5.3 0.2 - - - -
1036D SER 3.5 19.1 - - - -
1037D PRO* 2.9 33.7 + - + +
1038D SER 4.3 2.7 - - - -
1039D LEU* 3.3 30.4 - - + +
1042D ALA* 3.7 22.7 - - + -
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Residues in contact with THR1026 (chain D).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1011D GLU* 4.4 12.0 + - - +
1017D ILE* 4.2 0.9 - - - -
1018D TYR* 2.9 63.8 + - + +
1020D ASP* 4.2 12.5 + - - +
1024D TYR 3.4 6.7 + - - -
1025D TYR* 1.3 71.0 - - - +
1027D ILE* 1.3 64.7 + - - +
1030D GLY 4.7 1.8 - - - +
1031D HIS 2.9 29.4 - - - +
1032D LEU* 3.3 24.8 - - - +
1033D LEU* 4.0 4.0 - - - +
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Residues in contact with ILE1027 (chain D).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1014D ARG 4.0 2.5 - - - +
1015D LEU 3.4 23.3 - - - +
1016D LYS 3.4 27.1 - - - +
1017D ILE* 3.6 11.9 - - + +
1018D TYR* 4.0 4.0 - - - -
1026D THR* 1.3 75.3 - - - +
1028D GLY* 1.3 66.8 + - - +
1031D HIS* 3.0 35.9 + - + +
1033D LEU* 3.8 20.3 - - + +
1046D LEU* 3.8 27.1 - - + -
1056D GLY 3.7 8.1 - - - +
1058D ILE* 4.1 22.0 - - + -
1066D LEU* 5.3 3.7 - - + +
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Residues in contact with GLY1028 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1012D GLY 4.1 4.0 - - - +
1013D LEU* 4.1 1.7 - - - -
1014D ARG 3.1 37.3 + - - -
1018D TYR* 4.3 9.9 + - - -
1027D ILE* 1.3 77.8 - - - +
1029D ILE* 1.3 63.3 - - - +
1030D GLY 3.8 1.9 + - - -
1031D HIS* 5.2 0.4 - - - -
1058D ILE* 4.3 13.9 - - - -
1063D ALA* 4.7 10.5 - - - -
1066D LEU* 6.1 3.4 - - - -
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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