Contacts of the strand formed by residues 449 - 453 (chain F) 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 ILE 449 (chain F).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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427F LEU* 3.3 20.6 - - + +
429F VAL* 3.7 21.3 - - + -
437F ALA* 4.9 2.0 - - + +
440F VAL* 4.5 9.0 - - + -
441F ALA* 3.7 30.1 - - + +
445F PRO* 3.7 32.5 - - + -
447F ALA 4.0 1.1 - - - +
448F PRO* 1.3 75.4 - - - +
450F ILE* 1.3 59.7 + - - +
451F ALA* 3.5 4.3 + - + +
466F ARG 4.0 0.7 - - - +
467F GLY* 2.7 34.0 + - - +
468F ILE* 3.3 11.5 - - + -
469F PHE* 2.5 35.2 + - - -
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Residues in contact with ILE 450 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
426F ALA* 3.9 14.8 - - + -
427F LEU 2.8 8.3 + - - +
428F ILE* 3.3 12.9 - - + +
429F VAL 2.7 33.2 + - - +
448F PRO* 4.8 3.1 - - + +
449F ILE* 1.3 72.7 - - - +
451F ALA* 1.3 54.0 + - - +
452F VAL* 3.7 1.0 + - + -
469F PHE* 3.7 15.0 - - + +
471F VAL* 4.1 20.4 - - + -
492F ALA* 3.8 35.7 - - + +
495F VAL* 5.0 4.0 - - + -
496F GLY* 4.6 2.9 - - - +
501F PHE* 4.4 18.8 - - + -
502F PHE* 3.7 33.7 - - + -
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Residues in contact with ALA 451 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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429F VAL* 3.2 7.6 - - + +
431F THR* 4.0 9.9 - - + -
437F ALA* 3.9 20.9 - - + -
449F ILE* 3.5 2.7 + - + +
450F ILE* 1.3 70.9 - - - +
452F VAL* 1.3 64.4 + - - +
453F THR* 3.5 5.5 + - + +
462F ALA* 5.6 2.0 - - + -
468F ILE* 3.7 27.1 - - + -
469F PHE 3.3 8.8 + - - +
470F PRO* 3.7 3.6 - - + +
471F VAL* 3.2 23.7 + - - -
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Residues in contact with VAL 452 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
428F ILE* 4.2 8.7 - - + -
429F VAL 2.7 14.2 + - - +
430F LEU* 3.6 11.3 - - + +
431F THR* 3.1 25.6 + - - +
450F ILE* 4.5 1.1 - - + -
451F ALA* 1.3 71.1 - - - +
453F THR* 1.3 62.1 + - - +
471F VAL* 3.8 11.4 - - + -
473F CYS* 4.3 6.5 - - + -
488F ARG* 3.4 40.7 + - + +
491F PHE* 3.8 20.9 - - + -
492F ALA* 3.4 33.0 - - + -
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Residues in contact with THR 453 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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431F THR* 3.3 22.5 + - + -
432F GLU* 4.1 1.0 + - - -
451F ALA* 4.1 7.2 - - + +
452F VAL* 1.3 75.3 - - - +
454F ARG* 1.3 59.1 + - - +
455F ASN* 3.0 28.3 + - - +
458F THR* 3.6 11.3 - - + -
459F ALA* 3.7 36.3 - - + +
470F PRO* 5.3 0.9 - - + -
471F VAL 3.2 11.5 + - - +
472F LEU* 3.4 3.5 - - - +
473F CYS* 3.0 24.5 + - - -
488F ARG* 5.9 2.2 - - - +
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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