Contacts of the strand formed by residues 108 - 112 (chain D) in PDB entry 3SRF
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 ALA 108 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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69D ASN 3.1 7.7 + - - -
70D VAL* 3.8 14.1 - - + -
71D ALA* 2.8 26.1 + - - +
106D PRO 4.2 0.6 + - - -
107D VAL* 1.3 80.1 - - - +
109D VAL* 1.3 61.6 + - - +
237D ASP* 3.2 11.7 - - - +
238D MET* 3.6 21.5 - - + -
460D ARG* 3.4 28.2 + - + +
463D HIS* 4.7 0.2 - - - -
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Residues in contact with VAL 109 (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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71D ALA* 3.6 2.5 - - + +
73D LEU* 4.1 20.6 - - + -
87D ILE* 4.1 30.3 - - + -
90D VAL* 4.2 21.5 - - + -
91D ARG* 4.4 15.0 - - + +
107D VAL 4.8 3.8 - - - +
108D ALA* 1.3 78.4 - - - +
110D ALA* 1.3 63.6 + - - +
236D VAL* 3.8 26.6 - - + +
237D ASP* 2.8 39.4 + - - +
238D MET* 3.5 7.2 + - - -
460D ARG* 6.0 0.7 - - - -
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Residues in contact with ALA 110 (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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70D VAL* 3.9 9.0 - - + -
71D ALA 2.8 15.5 + - - +
72D ARG* 4.2 3.1 - - - -
73D LEU* 2.8 35.9 + - - +
109D VAL* 1.3 77.4 - - - +
111D LEU* 1.3 57.7 + - - +
112D ASP 4.0 0.4 + - - -
238D MET* 3.5 17.0 - - + -
240D PHE* 3.6 37.5 - - + -
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Residues in contact with LEU 111 (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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73D LEU* 3.9 3.4 - - - -
75D PHE* 3.6 34.8 - - + -
110D ALA* 1.3 71.4 - - - +
112D ASP* 1.3 55.9 + - - +
113D THR* 3.8 28.0 - - + +
227D ASP* 3.3 31.6 - - + +
228D LEU* 4.4 11.7 - - + -
230D PHE* 4.7 0.4 - - + -
231D GLY* 3.8 22.2 - - - +
236D VAL* 4.5 12.3 - - + +
238D MET 3.2 11.6 + - - +
239D VAL* 3.5 9.1 - - + +
240D PHE* 2.8 31.6 + - - +
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Residues in contact with ASP 112 (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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72D ARG* 2.9 40.2 + - + +
73D LEU 2.9 17.9 + - - +
74D ASN* 3.9 3.2 - - - +
75D PHE* 2.9 31.2 + - - +
110D ALA 4.0 0.8 + - - -
111D LEU* 1.3 71.9 - - - +
113D THR* 1.3 72.6 + - - +
240D PHE* 3.4 26.3 - - + +
242D SER* 3.3 1.7 + - - -
269D LYS* 2.7 34.0 + - - +
290D MET* 4.7 1.2 - - - +
532D K 3.3 3.6 - - - -
534D PYR 5.1 0.2 - - - +
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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