Contacts of the strand formed by residues 972 - 975 (chain Z) in PDB entry 5WTI
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 LYS 972 (chain Z).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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876Z GLN* 3.7 30.4 + - - +
877Z PHE* 4.0 12.9 - - - -
968Z HIS* 5.8 7.0 - - + -
969Z GLY 5.5 1.6 - - - +
970Z PHE* 3.5 11.3 - - - -
971Z TYR* 1.3 106.4 - - + +
973Z VAL* 1.3 71.4 + - - +
1057Z MET* 3.7 30.3 - - - +
1058Z LEU 3.3 6.5 - - - -
1059Z TYR* 4.1 19.0 + - + -
1072Z TRP* 4.3 1.0 - - - -
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Residues in contact with VAL 973 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
970Z PHE* 3.5 28.9 - - + -
972Z LYS* 1.3 83.3 - - - +
974Z TYR* 1.3 59.4 + - - +
975Z CYS* 3.9 16.8 + - - -
1000Z GLU* 4.6 11.4 - - + -
1004Z GLY 5.3 2.7 - - - +
1007Z ILE* 4.5 8.5 - - + -
1057Z MET* 3.1 9.7 - - - +
1058Z LEU* 3.0 50.4 + - + +
1072Z TRP* 3.5 20.9 - - + -
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Residues in contact with TYR 974 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
973Z VAL* 1.3 71.6 - - - +
975Z CYS* 1.3 54.0 + - - +
1000Z GLU* 3.6 1.9 - - - +
1001Z PHE* 2.7 41.3 + - + +
1002Z GLY 4.2 2.4 + - - +
1046Z ASP* 4.4 24.4 + - - +
1050Z GLU* 4.5 16.3 + - + +
1055Z LYS* 3.7 46.5 + - + +
1056Z LEU* 4.4 15.7 - - - -
1057Z MET* 3.7 30.2 - - + -
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Residues in contact with CYS 975 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
973Z VAL* 3.9 15.7 - - - -
974Z TYR* 1.3 75.7 - - - +
976Z LYS* 1.3 60.9 + - - +
977Z ALA 3.8 0.7 - - - -
998Z ILE* 3.4 21.2 - - + +
999Z GLU* 3.1 13.0 - - - +
1000Z GLU* 3.6 23.1 - - - -
1001Z PHE* 4.7 0.2 - - - -
1055Z LYS* 3.2 28.5 - - - +
1056Z LEU 3.4 16.1 + - - +
1058Z LEU* 3.6 28.5 - - + -
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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
------------------------------------------------------------
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