Contacts of the strand formed by residues 37 - 41 (chain G) 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 SER 37 (chain G).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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36G ASN* 1.3 75.5 - - - +
38G LEU* 1.3 62.2 + - - +
49G ILE 3.1 14.1 - - - -
50G SER* 3.9 12.8 - - - -
77G VAL* 4.1 22.1 - - - +
79G ASN* 3.0 25.6 + - - -
137G THR* 4.8 0.9 + - - -
164G ALA* 3.1 5.4 - - - +
165G THR* 2.8 37.4 + - - +
172G ILE* 4.4 1.9 - - - +
197G MET* 4.5 3.8 - - - -
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Residues in contact with LEU 38 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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37G SER* 1.3 78.0 - - - +
39G ALA* 1.3 67.0 + - - +
40G VAL* 3.9 25.4 - - + +
47G VAL 4.0 0.2 - - - +
48G VAL* 3.4 4.4 - - - +
49G ILE* 2.8 40.7 + - + +
77G VAL* 6.3 0.7 - - - -
163G THR* 3.2 12.6 - - - +
164G ALA* 3.9 8.3 - - + +
172G ILE* 3.9 19.5 - - + -
176G LEU* 4.3 15.5 - - + -
193G ALA* 3.8 31.2 - - + +
196G HIS* 5.0 1.6 - - + -
197G MET* 3.9 26.9 - - + +
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Residues in contact with ALA 39 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38G LEU* 1.3 77.3 - - - +
40G VAL* 1.3 62.9 + - - +
47G VAL 3.2 5.6 - - - +
48G VAL* 3.6 22.4 - - + -
77G VAL* 6.0 0.2 - - + -
137G THR* 4.4 4.5 - - + -
148G ILE* 3.8 30.3 - - + -
162G ALA* 3.0 28.4 - - - +
163G THR* 2.8 21.5 + - + +
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Residues in contact with VAL 40 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38G LEU* 3.9 14.1 - - + -
39G ALA* 1.3 78.8 - - - +
41G ARG* 1.3 64.1 + - - +
42G GLY 4.0 0.2 + - - -
46G THR* 3.4 4.3 - - - +
47G VAL* 2.9 39.8 + - + +
148G ILE* 4.0 3.1 - - - -
162G ALA* 3.8 15.9 - - + -
176G LEU* 4.2 11.7 - - + -
179G PHE* 5.1 0.9 - - - -
180G ILE* 4.2 15.5 - - - +
189G VAL* 3.9 21.3 - - + +
192G PHE* 4.3 13.0 - - + -
193G ALA* 3.9 26.7 - - + -
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Residues in contact with ARG 41 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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60A MET* 3.4 34.7 - - - +
40G VAL* 1.3 74.2 - - - +
42G GLY* 1.3 60.4 + - - +
45G CYS 3.7 4.0 - - - -
46G THR* 4.4 0.9 - - + +
144G LEU 5.7 1.6 + - - -
146G PRO* 3.4 37.3 + - + +
147G SER* 4.3 3.5 - - - +
148G ILE* 3.5 16.8 - - + -
160G TYR 3.9 7.9 - - - -
161G LYS* 3.4 19.7 + - - +
179G PHE* 6.1 0.6 - - - -
180G HIS* 2.7 98.4 + - + +
189G VAL* 4.6 0.7 - - - -
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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