Contacts of the helix formed by residues 297 - 303 (chain A) in PDB entry 1UW9
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 MET 297 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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270A LEU* 3.9 15.3 - - + +
271A THR* 3.8 22.2 - - + -
295A ARG 3.2 0.2 + - - -
296A ALA* 1.3 74.9 - - - +
298A HIS* 1.3 62.8 + - - +
299A ALA 3.2 3.4 - - - -
300A VAL* 3.0 31.6 + - + +
301A ILE* 3.9 12.3 + - + +
1483A EDO 4.4 17.9 - - - -
117B PHE* 4.3 17.9 - - + -
121B VAL* 3.4 25.8 - - + +
122B GLY 2.7 14.4 + - - -
270B LEU* 6.5 0.4 - - + -
274B PHE* 6.0 1.1 - - + -
301B ILE* 4.3 19.1 - - + -
309B ILE* 4.1 27.1 - - + -
314B LEU* 5.9 0.4 - - + -
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Residues in contact with HIS 298 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
270A LEU* 3.7 18.5 - - + +
295A ARG* 2.9 76.9 + - + +
296A ALA 3.3 0.8 + - - -
297A MET* 1.3 78.1 - - - +
299A ALA* 1.3 72.9 + - + +
301A ILE* 2.8 23.4 + - - +
302A ASP* 2.4 48.8 + - - +
311A PHE* 4.0 6.5 - - + -
314A LEU* 4.1 9.6 - - + +
335A LEU* 6.0 3.0 - - - +
336A GLU 5.7 0.7 - - - -
1477A CAP 4.0 7.6 + - - -
1482A EDO 3.7 12.3 - - - -
122B GLY 5.1 3.8 - - - -
123B ASN* 6.0 1.3 - - - -
126B GLY* 5.7 2.8 - - - -
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Residues in contact with ALA 299 (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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297A MET 3.2 1.2 - - - -
298A HIS* 1.3 86.1 - - + +
300A VAL* 1.3 62.4 + - - +
301A ILE 3.1 2.0 + - - -
302A ASP* 3.2 14.8 - - - +
303A ARG* 3.3 13.5 + - + +
122B GLY 5.5 2.4 + - - +
123B ASN* 5.2 2.2 - - - +
125B PHE* 3.5 9.4 - - + +
126B GLY* 3.4 38.1 - - - +
307B HIS* 2.8 21.1 + - - -
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Residues in contact with VAL 300 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
297A MET* 3.0 22.9 + - + +
299A ALA* 1.3 77.0 - - - +
301A ILE* 1.3 57.9 + - + +
121B VAL* 3.8 20.9 - - + +
125B PHE* 3.7 34.7 - - + +
300B VAL 4.9 5.0 - - - +
301B ILE* 3.8 20.5 - - + -
307B HIS* 3.5 22.4 - - - -
308B GLY* 3.9 11.9 - - - -
309B ILE* 3.7 28.7 - - + -
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Residues in contact with ILE 301 (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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270A LEU* 4.8 13.7 - - + -
297A MET* 4.2 26.0 - - + +
298A HIS 2.8 7.0 + - - +
300A VAL* 1.3 82.0 - - + +
302A ASP* 1.3 58.7 + - - +
303A ARG 3.7 1.3 - - - -
307A HIS 4.0 4.3 - - - +
308A GLY* 3.3 10.2 - - - -
309A ILE* 3.1 54.0 + - + +
314A LEU* 4.1 13.7 - - + -
1483A EDO 4.8 8.1 - - - -
297B MET* 4.3 16.2 - - + -
300B VAL* 3.8 17.9 - - + +
301B ILE* 4.0 24.0 - - + -
307B HIS* 5.9 0.2 - - - -
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Residues in contact with ASP 302 (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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134A ARG* 3.0 22.9 + - - +
298A HIS* 2.4 45.6 + - - +
299A ALA* 3.2 15.9 - - - +
301A ILE* 1.3 76.6 - - - +
303A ARG* 1.3 65.1 + - - +
304A GLN 3.6 2.0 - - - -
309A ILE 2.9 22.2 - - - +
310A HIS* 4.0 0.6 - - - -
311A PHE* 3.3 33.5 + - - +
314A LEU* 4.0 3.5 - - + +
473A ASP* 4.1 7.4 - - - +
1482A EDO 4.2 7.1 + - - -
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Residues in contact with ARG 303 (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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299A ALA* 3.3 20.7 + - - +
301A ILE 3.7 0.8 - - - -
302A ASP* 1.3 82.2 + - - +
304A GLN* 1.3 75.1 + - - +
336A GLU* 2.9 44.7 + - - -
472A ILE* 3.6 21.8 - - + +
473A ASP* 3.5 22.5 + - - +
45B GLN* 4.6 0.6 - - - +
125B PHE 2.9 26.7 + - - +
126B GLY* 3.4 15.5 - - - -
127B PHE 2.9 23.1 + - - -
128B LYS* 4.0 8.3 + - - +
130B LEU* 2.8 31.9 + - - +
131B ARG 4.8 1.5 - - - +
307B HIS* 3.5 12.5 + - + +
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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