Contacts of the strand formed by residues 34 - 38 (chain K) in PDB entry 3SDI
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 VAL 34 (chain K).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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14K VAL* 4.3 9.4 - - + -
16K VAL* 3.7 35.8 - - + +
32K LYS* 3.3 17.7 - - + +
33K LYS* 1.3 79.8 - - - +
35K ILE* 1.3 73.2 + - - +
36K GLU* 4.2 3.2 + - - +
42K LEU* 4.0 17.3 - - + -
43K GLY 3.3 11.4 - - - +
44K THR* 4.3 1.3 - - + -
45K MET* 4.1 2.5 - - - +
174K ASN* 5.9 0.2 - - + -
176K TYR* 3.7 46.0 + - + +
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Residues in contact with ILE 35 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34K VAL* 1.3 77.8 - - - +
36K GLU* 1.3 70.4 + - - +
37K ILE* 3.3 16.3 + - + -
42K LEU* 3.4 4.2 - - - -
43K GLY* 2.8 41.8 + - - +
45K MET* 3.6 16.6 - - + +
56K GLU* 3.2 44.9 - - + +
57K THR* 4.3 24.9 - - + +
60K GLY* 6.4 0.4 - - - -
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Residues in contact with GLU 36 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34K VAL* 4.9 2.6 - - + +
35K ILE* 1.3 79.9 - - - +
37K ILE* 1.3 63.2 + - - +
38K ASN 3.6 2.7 - - - +
41K LEU 3.8 5.2 - - - -
42K LEU* 4.0 10.5 - - + -
176K TYR* 2.9 26.9 + - + +
184K TRP* 3.5 45.6 - - + +
186K TYR* 5.9 0.5 - - - -
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Residues in contact with ILE 37 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35K ILE* 4.2 19.3 - - + +
36K GLU* 1.3 74.8 - - - +
38K ASN* 1.3 64.8 + - + +
41K LEU* 2.9 38.2 + - + +
42K LEU 4.0 6.3 - - - +
43K GLY* 3.8 25.6 - - - +
56K GLU* 4.6 8.1 - - - +
59K LEU* 3.9 24.9 - - + -
60K GLY* 3.9 27.4 - - - +
63K CYS* 4.0 15.9 - - + -
101K ILE* 4.7 2.7 - - + -
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Residues in contact with ASN 38 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36K GLU 4.6 1.3 - - - -
37K ILE* 1.3 81.3 + - + +
39K PRO* 1.4 74.6 - - + +
40K PHE* 2.6 38.5 + - - +
41K LEU* 3.2 34.5 + - - +
63K CYS* 5.2 2.8 - - + +
67K GLU* 4.3 14.3 + - - +
73K ARG* 4.2 21.8 - - - +
74K ILE* 4.6 11.7 + - - +
184K TRP* 2.9 18.9 + - - -
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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