Contacts of the strand formed by residues 41 - 44 (chain Y) in PDB entry 3TDD
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 LEU 41 (chain Y).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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37Y ILE* 3.1 34.8 + - + -
38Y ASN* 2.7 44.6 + - - +
40Y PHE* 1.3 87.4 - - + +
42Y LEU* 1.3 66.4 + - - +
63Y CYS* 3.8 24.2 - - - -
73Y ARG* 5.7 1.8 - - - +
74Y ILE* 4.1 12.8 - - + +
76Y VAL* 4.1 19.1 - - + +
79Y ALA* 4.0 13.9 - - + -
101Y ILE* 5.3 4.0 - - + -
102Y CYS 3.4 11.7 - - - +
103Y GLY* 3.8 11.4 - - - -
104Y TYR 5.2 0.4 - - - +
105Y THR* 5.8 1.3 - - + -
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Residues in contact with LEU 42 (chain Y).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14Y VAL* 4.3 9.9 - - + -
34Y VAL* 3.8 21.8 - - + -
35Y ILE 3.6 2.5 - - - +
36Y GLU* 4.0 15.3 - - + -
37Y ILE* 4.0 6.7 - - - +
41Y LEU* 1.3 77.8 - - - +
43Y GLY* 1.3 58.8 + - - +
100Y MET 3.5 0.9 - - - +
101Y ILE* 3.6 2.6 - - - +
102Y CYS* 2.8 45.1 + - + +
176Y TYR* 3.5 35.2 - - + -
178Y VAL* 3.5 26.0 - - + -
184Y TRP* 3.6 34.3 - - + +
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Residues in contact with GLY 43 (chain Y).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34Y VAL* 3.3 3.8 - - - -
35Y ILE 2.6 39.9 + - - -
37Y ILE* 4.0 8.9 - - - +
42Y LEU* 1.3 76.4 - - - +
44Y THR* 1.3 63.9 + - - -
56Y GLU* 3.4 20.3 - - - +
100Y MET 3.2 7.4 - - - -
101Y ILE* 4.4 2.0 - - - -
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Residues in contact with THR 44 (chain Y).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3Y THR* 4.2 13.7 + - - -
4Y LEU 4.6 0.9 - - - +
5Y ALA* 5.2 0.4 - - + -
14Y VAL* 3.6 31.4 - - + -
16Y VAL* 4.1 12.3 - - + -
33Y LYS 3.3 4.5 - - - +
34Y VAL* 4.6 0.7 - - + -
42Y LEU 6.0 0.2 - - - -
43Y GLY* 1.3 74.9 - - - -
45Y MET* 1.3 61.3 + - - +
46Y ALA 4.2 0.2 - - - -
52Y CYS* 4.6 0.2 - - - -
56Y GLU* 3.2 7.8 - - - +
98Y GLY 4.7 0.7 + - - -
99Y THR* 2.4 32.1 + - - -
100Y MET* 2.8 59.7 + - + +
102Y CYS* 5.4 1.1 - - - -
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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