Contacts of the strand formed by residues 515 - 518 (chain A) in PDB entry 1US1
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 THR 515 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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240A LEU* 3.0 33.8 + - + +
497A SER* 3.7 22.2 - - - +
498A ALA 3.7 2.5 - - - +
500A LEU* 3.7 5.4 - - - +
510A GLN* 3.5 4.7 - - - +
511A VAL* 3.0 40.2 + - + -
512A SER* 2.6 33.1 + - - +
513A GLU 3.1 8.6 + - - -
514A HIS* 1.3 76.5 - - - +
516A LEU* 1.3 61.4 + - - +
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Residues in contact with LEU 516 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
375A ASN* 4.5 19.3 - - + -
497A SER* 3.3 11.8 - - - -
498A ALA* 3.1 42.6 + - + +
499A PHE 5.0 2.7 - - - +
500A LEU* 4.0 15.9 - - + +
501A PHE 5.9 0.4 - - - +
504A THR* 3.5 25.1 - - + +
507A TYR* 4.3 11.7 - - + +
508A GLY* 3.6 35.4 - - - +
509A ASN 3.7 9.0 - - - +
515A THR* 1.3 73.7 - - - +
517A GLY* 1.3 65.8 + - - +
518A THR* 3.9 21.3 - - + +
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Residues in contact with GLY 517 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
495A ILE* 4.6 7.6 - - - -
497A SER* 5.2 0.4 - - - -
508A GLY* 3.4 3.8 - - - -
509A ASN 2.8 37.0 + - - -
511A VAL* 4.2 10.1 - - - +
515A THR 3.9 0.4 + - - -
516A LEU* 1.3 72.9 - - - +
518A THR* 1.3 65.3 + - - -
686A PRO* 3.4 27.7 - - - +
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Residues in contact with THR 518 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
372A TYR* 4.0 13.1 - - - -
373A GLY 3.1 24.2 - - - +
374A GLY* 4.1 3.1 - - - -
379A ALA* 4.0 17.0 - - + +
496A SER 2.9 25.3 + - - +
497A SER* 4.2 5.4 - - - -
498A ALA* 4.3 7.3 + - + +
507A TYR 3.7 5.2 - - - +
516A LEU* 3.7 25.5 + - + -
517A GLY* 1.3 71.2 - - - +
519A VAL* 1.3 58.2 + - - +
520A HIS* 3.0 23.4 + - - -
686A PRO* 3.3 8.7 - - - +
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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
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
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