Contacts of the strand formed by residues 337 - 341 (chain A) in PDB entry 1Y8Q
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 ASN 337 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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330A PHE 3.6 1.3 - - - +
331A PHE* 3.4 8.7 - - - -
332A ASP* 2.9 41.3 + - + -
335A LYS* 3.2 26.6 - - - +
336A GLY* 1.3 78.9 - - - +
338A GLY* 1.3 58.6 + - - +
339A ILE* 4.0 19.5 - - + +
427B LYS* 2.9 36.5 + - - +
429B LEU* 4.1 1.1 - - - -
431B PRO* 3.3 16.2 - - - +
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Residues in contact with GLY 338 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
329A PHE* 3.7 20.2 - - - -
330A PHE 3.5 5.6 - - - -
337A ASN* 1.3 73.2 - - - +
339A ILE* 1.3 58.0 + - - +
427B LYS* 3.4 4.2 - - - +
428B LEU 2.6 32.7 + - - -
429B LEU* 3.2 27.5 + - - +
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Residues in contact with ILE 339 (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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237A THR* 4.1 26.7 - - + +
328A PHE 3.7 0.5 - - - +
329A PHE* 3.4 4.2 - - - -
330A PHE* 2.8 44.5 + - + +
337A ASN* 4.1 24.2 - - + +
338A GLY* 1.3 78.6 - - - +
340A VAL* 1.3 67.6 + - - +
341A GLU* 3.8 32.6 + - + +
425B ARG 5.4 1.6 - - - +
426B LYS* 3.4 15.3 - - + +
427B LYS* 4.4 18.2 - - + -
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Residues in contact with VAL 340 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
325A HIS* 4.1 31.9 - - + +
326A ASN 4.1 20.0 - - - +
328A PHE 3.3 11.2 - - - +
329A PHE* 4.4 6.3 - - + -
339A ILE* 1.3 74.4 - - - +
341A GLU* 1.3 64.2 + - - +
422B PRO* 3.4 35.4 - - + -
426B LYS* 2.9 36.5 + - - +
428B LEU* 4.3 14.6 - - + -
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Residues in contact with GLU 341 (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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235A ARG 3.6 3.8 - - - +
236A THR* 3.2 16.0 + - + +
237A THR* 2.8 44.1 + - + +
326A ASN 3.8 3.1 - - - -
327A ASN* 2.9 21.3 + - - +
328A PHE* 3.0 15.6 + - - +
330A PHE* 4.0 14.4 - - + -
339A ILE* 3.8 13.8 + - + +
340A VAL* 1.3 76.3 - - - +
342A CYS* 1.3 61.2 + - - +
343A LEU* 3.8 21.9 - - + +
426B LYS* 3.0 32.0 + - - +
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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