Contacts of the strand formed by residues 674 - 678 (chain A) in PDB entry 4DXT
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 674 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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543A ARG* 3.8 46.4 - - + +
544A ILE* 4.1 20.0 - - + -
625A THR* 3.5 25.4 - - + -
627A GLU* 3.6 28.0 - - + +
672A GLU* 3.2 14.1 - - - +
673A PRO* 1.3 80.9 - - + +
675A GLN* 1.3 67.5 + - - +
676A THR* 4.8 1.3 - - - +
710A ARG* 3.9 19.1 - - - +
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Residues in contact with GLN 675 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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625A THR* 3.4 2.8 - - - -
626A LEU 2.9 35.8 + - - +
666A THR 4.3 0.3 - - - +
667A TYR* 3.4 20.1 + - + -
668A ASP* 2.8 51.8 + - - +
671A GLY* 3.8 8.6 - - - -
672A GLU* 2.8 29.7 + - + +
673A PRO 3.8 0.2 + - - -
674A ILE* 1.3 74.3 - - - +
676A THR* 1.3 63.8 + - - +
677A PHE* 3.4 26.1 - - + -
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Residues in contact with THR 676 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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544A ILE* 4.0 14.7 - - - +
546A LEU* 4.7 8.0 - - + +
623A ALA* 4.2 11.0 - - + -
624A VAL 3.4 10.1 - - - +
625A THR* 2.9 20.4 + - - +
674A ILE* 4.3 1.4 + - - +
675A GLN* 1.3 74.9 - - - +
677A PHE* 1.3 71.7 - - - +
678A HIS* 3.9 29.4 + - + +
712A HIS* 4.5 4.3 - - + -
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Residues in contact with PHE 677 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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623A ALA* 3.0 4.5 - - - -
624A VAL* 2.7 46.3 + - + +
626A LEU* 4.3 10.8 - - + -
646A PHE* 3.8 20.4 - + - -
665A PHE* 3.6 46.3 - + + -
666A THR 3.3 26.9 - - - -
667A TYR* 4.1 6.7 - + - -
675A GLN* 3.4 46.2 - - + -
676A THR* 1.3 79.1 - - - +
678A HIS* 1.3 64.7 + - - +
679A PHE* 5.2 0.3 - - - -
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Residues in contact with HIS 678 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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546A LEU* 5.4 7.4 - - + +
622A THR* 3.5 10.0 + - - +
623A ALA* 3.7 17.7 - - + +
665A PHE* 3.5 15.5 - - - -
676A THR* 3.9 21.5 - - + +
677A PHE* 1.3 77.2 - - - +
679A PHE* 1.3 67.9 + - - +
680A GLN* 3.5 2.6 + - - +
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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