Contacts of the strand formed by residues 250 - 255 (chain B) in PDB entry 1N1M
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 250 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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237A GLU* 5.3 0.2 - - - -
239B SER* 3.2 5.5 - - - -
240B PHE* 2.6 60.2 + - + +
242B SER* 5.4 5.6 + - - -
246B LEU* 4.4 15.8 - - + +
248B TYR 3.7 0.2 + - - -
249B PRO* 1.3 74.7 - - - +
251B THR* 1.3 69.9 + - - +
252B VAL* 3.8 11.0 - - + +
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Residues in contact with THR 251 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
237A GLU* 3.0 43.9 + - - +
251A THR* 4.2 9.5 - - + +
237B GLU* 4.1 13.0 - - + -
238B TYR 3.3 12.0 + - - +
239B SER* 4.9 2.9 + - - -
250B LYS* 1.3 80.8 + - - +
252B VAL* 1.3 68.1 + - - +
253B ARG* 3.3 44.5 + - - +
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Residues in contact with VAL 252 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
124B TRP* 4.6 4.5 - - + -
236B ILE 3.6 0.7 - - - +
237B GLU* 3.3 3.5 - - - -
238B TYR* 2.8 69.5 + - + +
240B PHE* 3.8 31.0 - - + -
250B LYS* 3.8 9.8 + - + -
251B THR* 1.3 73.5 - - - +
253B ARG* 1.3 61.6 + - - +
254B VAL* 3.9 18.6 - - + -
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Residues in contact with ARG 253 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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237A GLU* 4.4 3.0 + - - -
253A ARG* 2.5 40.6 - - - +
192B ASP* 4.2 20.1 - - - +
235B LEU* 4.2 21.0 - - + +
236B ILE 3.0 11.0 - - - +
237B GLU* 2.7 35.4 + - + +
251B THR* 3.3 37.7 + - - +
252B VAL* 1.3 75.2 - - - +
254B VAL* 1.3 63.6 + - - +
255B PRO* 4.2 2.3 - - - +
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Residues in contact with VAL 254 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
124B TRP* 3.3 36.1 - - + +
195B TYR* 5.5 1.1 - - - +
201B TRP* 3.7 29.4 - - + +
235B LEU* 3.9 3.4 - - - -
236B ILE* 2.9 42.5 + - + +
238B TYR* 5.0 2.9 - - + +
252B VAL* 3.9 14.1 - - + -
253B ARG* 1.3 79.6 - - - +
255B PRO* 1.3 86.5 - - + +
256B TYR* 2.9 2.5 + - + -
709B ASP* 5.5 1.8 - - + -
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Residues in contact with PRO 255 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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192B ASP* 3.4 37.2 - - + +
195B TYR* 3.7 19.1 - - - +
200B ASP* 4.9 0.6 - - + +
201B TRP* 3.7 13.3 + - - +
230B ASP* 3.9 27.4 - - + +
233B VAL* 4.0 11.0 - - + +
234B PRO 3.4 9.0 - - - +
235B LEU* 3.5 20.6 - - + -
253B ARG 4.2 0.2 - - - +
254B VAL* 1.3 94.3 - - + +
256B TYR* 1.3 58.7 + - - +
257B PRO* 4.3 2.3 - - - +
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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
------------------------------------------------------------
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