Contacts of the helix formed by residues 134 - 138 (chain D) in PDB entry 5HP1
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 SER 134 (chain D).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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92C LEU* 5.2 0.6 - - - +
381C VAL 4.8 0.9 - - - +
31D ILE* 4.0 9.6 - - - -
133D PRO* 1.3 78.9 - - - +
135D ILE* 1.3 65.8 + - - +
136D ASN 3.4 0.5 + - - -
137D ASN* 3.1 15.5 + - - +
138D GLU* 3.3 8.7 + - - -
139D THR* 3.1 46.0 + - - -
140D PRO 5.5 1.1 - - - -
141D GLY* 5.8 0.2 - - - -
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Residues in contact with ILE 135 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
99C GLY 6.2 0.4 - - - +
181C TYR* 4.5 1.8 + - - +
380C ILE 5.4 1.3 - - - -
381C VAL 4.2 2.5 - - - -
382C ILE 3.5 19.1 - - - +
383C TRP* 3.7 19.3 - - - +
384C GLY* 4.0 8.3 - - - +
26D LEU 5.1 0.7 - - - +
28D GLU* 3.7 42.2 - - + +
31D ILE* 3.8 22.2 - - + +
32D LYS* 5.7 2.0 - - - +
134D SER* 1.3 71.2 - - - +
136D ASN* 1.3 67.3 + - + +
137D ASN 2.9 6.3 + - - -
138D GLU* 3.2 17.5 + - - +
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Residues in contact with ASN 136 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
94C ILE 4.2 1.9 - - - +
95C PRO* 3.2 13.2 - - - +
96C HIS* 2.8 50.2 + - - +
99C GLY* 3.3 17.0 - - - +
100C LEU* 3.9 1.2 - - - +
181C TYR* 3.5 28.3 + - - +
381C VAL* 2.8 24.2 + - - +
382C ILE* 3.4 23.1 - - - +
134D SER 3.4 0.4 + - - -
135D ILE* 1.3 76.3 - - + +
137D ASN* 1.3 71.3 + - - +
138D GLU 3.3 0.3 + - - -
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Residues in contact with ASN 137 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
91C GLN* 4.9 4.4 + - - +
92C LEU* 3.5 14.4 + - - +
93C GLY* 2.8 54.5 + - - +
94C ILE 3.4 6.9 + - - +
95C PRO* 3.4 19.8 - - + +
182C GLN 4.4 4.0 - - - +
381C VAL* 4.1 20.6 - - - +
134D SER* 3.1 16.6 + - - +
135D ILE 2.9 3.2 + - - -
136D ASN* 1.3 81.9 - - - +
138D GLU* 1.3 65.5 + - - +
139D THR* 3.1 11.3 + - - +
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Residues in contact with GLU 138 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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172C LYS* 3.6 15.2 + - - -
179C VAL* 4.0 13.4 - - - +
180C ILE 3.3 20.0 + - - +
181C TYR* 3.3 41.1 + - + -
182C GLN* 3.1 29.2 + - - +
134D SER* 3.3 6.5 + - - +
135D ILE 3.2 13.5 + - - +
136D ASN 3.2 0.8 - - - -
137D ASN* 1.3 78.4 - - - +
139D THR* 1.3 61.4 + - - +
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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