Contacts of the strand formed by residues 258 - 264 (chain P) in PDB entry 5MQF
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 ILE 258 (chain P).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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249P ARG* 5.8 4.7 - - + +
252P PHE* 5.4 8.7 - - + +
253P TYR* 5.4 9.6 - - + +
256P GLY 3.5 5.1 + - - +
257P GLU* 1.3 74.2 - - - +
259P ARG* 1.3 66.1 + - - +
260P THR 4.6 7.6 - - - +
272P ILE* 6.0 3.6 - - + -
273P GLN 3.4 10.8 - - - +
274P PHE* 3.8 4.9 - - + +
275P ALA* 4.3 1.1 - - - -
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Residues in contact with ARG 259 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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258P ILE* 1.3 71.0 - - - +
260P THR* 1.3 62.5 + - - +
273P GLN* 2.3 35.2 + - + +
274P PHE* 3.3 15.3 - - - +
275P ALA* 3.6 11.1 - - + +
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Residues in contact with THR 260 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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258P ILE* 3.5 7.8 - - - +
259P ARG* 1.3 81.7 - - - +
261P ILE* 1.3 65.5 + - - +
272P ILE* 3.9 1.2 - - - -
273P GLN* 2.9 35.1 + - - +
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Residues in contact with ILE 261 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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245P GLU* 5.7 9.6 - - + +
248P LEU* 6.5 0.7 - - + -
249P ARG* 5.4 14.1 - - + +
260P THR* 1.3 79.7 - - - +
262P THR* 1.3 61.6 + - - +
263P VAL* 4.0 2.5 + - + -
270P ALA* 6.1 2.5 - - + -
271P PHE 3.2 9.6 - - - +
272P ILE* 5.0 4.3 - - + -
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Residues in contact with THR 262 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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261P ILE* 1.3 72.9 - - - +
263P VAL* 1.3 61.1 + - - +
264P VAL* 3.7 2.7 + - - +
270P ALA* 3.0 7.8 - - - -
271P PHE* 2.9 50.0 + - - +
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Residues in contact with VAL 263 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
245P GLU* 4.2 25.8 - - + +
261P ILE* 4.0 3.9 + - + +
262P THR* 1.3 69.2 - - - +
264P VAL* 1.3 60.5 + - - +
265P GLN 3.9 2.4 + - - -
269P CYS 4.0 4.5 - - - +
270P ALA* 4.5 7.0 - - + -
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Residues in contact with VAL 264 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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262P THR 3.7 2.7 + - - +
263P VAL* 1.3 71.0 - - - +
265P GLN* 1.3 61.2 + - - +
266P ARG* 3.4 2.2 - - + +
267P GLN* 4.6 16.4 - - + +
268P GLN* 3.0 4.5 + - - -
269P CYS* 2.9 44.3 + - + +
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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