Contacts of the strand formed by residues 244 - 247 (chain H) in PDB entry 4D1Q
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 LYS 244 (chain H).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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173H ASP* 3.5 23.2 + - - -
174H GLY 3.8 1.2 - - - -
175H ALA 2.9 34.2 + - - +
176H SER* 2.9 17.1 + - - -
177H ALA 2.6 32.1 + - - -
242H SER 3.8 12.3 - - - +
243H ILE* 1.3 71.1 - - - +
245H PHE* 1.3 55.0 + - - +
246H VAL* 4.1 1.2 + - - +
261H ILE* 3.9 20.6 - - + -
263H ILE* 5.2 3.6 - - + -
428H TRP* 3.6 31.0 - - + -
560H SER* 2.9 26.5 + - - -
561H LEU* 5.7 0.4 - - - +
564H ILE* 3.6 28.7 - - + -
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Residues in contact with PHE 245 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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177H ALA* 3.1 31.0 - - + +
179H ILE* 4.0 21.8 - - + -
194H VAL* 6.0 0.2 - - + -
228H LEU* 4.2 15.9 - - + -
232H PHE* 4.3 10.3 - + - -
240H LEU* 4.0 15.5 - - + -
243H ILE* 3.1 42.6 - - + -
244H LYS* 1.3 71.2 - - - +
246H VAL* 1.3 63.8 + - - +
257H LEU* 3.5 45.1 - - + -
260H ASN* 4.1 10.1 - - + -
261H ILE* 2.9 19.2 + - - +
262H ARG* 3.1 5.4 - - - +
263H ILE* 2.8 25.7 + - - +
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Residues in contact with VAL 246 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
177H ALA 2.8 11.2 + - - +
178H THR* 3.6 28.4 - - + +
179H ILE 3.7 2.4 + - - -
244H LYS 5.2 1.3 - - - +
245H PHE* 1.3 71.5 - - - +
247H THR* 1.3 72.2 + - - +
263H ILE* 3.4 18.2 - - + +
264H ASN 4.7 1.8 - - - +
265H CYS* 4.4 8.3 - - - +
564H ILE* 3.8 20.2 - - + -
565H PRO* 3.1 31.9 - - + +
566H ALA 4.5 1.8 - - - +
567H SER* 3.6 36.1 - - - +
568H SER* 3.8 2.6 - - - +
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Residues in contact with THR 247 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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179H ILE* 3.7 14.5 + - - +
245H PHE* 4.6 0.6 - - - +
246H VAL* 1.3 80.8 + - - +
248H ASP* 1.3 82.9 + - - +
253H VAL* 3.5 29.5 - - + +
254H VAL* 4.7 0.7 - - + -
257H LEU* 4.4 5.4 - - - +
262H ARG* 3.4 38.4 - - - +
263H ILE 2.9 8.9 + - - +
264H ASN* 3.5 3.3 - - - -
265H CYS* 2.6 36.8 + - - -
568H SER* 4.6 5.6 - - - -
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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