Contacts of the strand formed by residues 126 - 131 (chain I) in PDB entry 3NFP
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 126 (chain I).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17I ALA* 4.3 6.1 - - - +
18I MET 5.0 1.0 + - - -
124I GLY 3.7 4.0 + - - +
125I GLN* 1.3 97.4 + - - +
127I VAL* 1.3 71.9 + - - +
128I TYR* 3.4 39.4 - - + -
144I GLU* 4.1 25.8 - - + +
145I SER 3.3 12.8 - - - +
146I VAL* 3.6 20.6 - - + -
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Residues in contact with VAL 127 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7I PRO* 4.2 8.3 - - + -
15I PHE* 3.9 29.4 - - + -
16I LYS 3.5 10.5 - - - +
17I ALA* 4.3 12.3 - - + -
121I PHE* 4.6 9.2 - - + -
125I GLN* 4.8 1.6 - - + -
126I MET* 1.3 80.6 - - - +
128I TYR* 1.3 65.2 + - - +
129I TYR* 4.0 13.0 - - + -
144I GLU* 3.5 5.2 - - - +
145I SER* 3.0 52.0 + - - +
156I TRP* 4.2 22.2 - - + -
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Residues in contact with TYR 128 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14I THR 3.9 0.3 - - - +
15I PHE* 3.2 2.9 - - - -
16I LYS* 2.8 38.6 + - + +
18I MET* 4.0 35.7 - - + -
126I MET* 3.4 35.3 - - + -
127I VAL* 1.3 75.3 - - - +
129I TYR* 1.3 63.7 + - - +
130I GLN* 5.4 1.4 - - - +
142I PRO 4.8 5.4 - - - -
143I ALA 3.8 4.5 - - - -
144I GLU* 3.6 30.2 + - + -
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Residues in contact with TYR 129 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7I PRO* 3.6 10.4 - - - +
8I PRO* 2.8 45.3 + - - +
9I GLU* 5.3 0.2 - - - -
10I ILE* 4.3 23.1 - - + -
13I ALA* 4.5 4.5 - - + -
14I THR* 3.2 18.2 - - - -
15I PHE* 3.6 17.0 - + + -
127I VAL* 4.0 10.8 - - + -
128I TYR* 1.3 78.4 - - - +
130I GLN* 1.3 62.7 + - - +
136I ARG* 3.0 16.0 + - - -
143I ALA* 3.0 25.7 + - + +
145I SER* 3.6 24.4 - - - -
159I PRO* 3.8 22.9 - - + -
161I LEU* 4.1 17.0 - - + -
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Residues in contact with GLN 130 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13I ALA* 3.4 3.9 - - - -
14I THR* 2.9 46.8 + - - +
16I LYS* 4.6 21.2 - - + +
128I TYR 5.4 1.8 - - - +
129I TYR* 1.3 77.5 - - - +
131I CYS* 1.3 67.7 + - - +
132I VAL* 4.9 10.3 - - - +
136I ARG* 3.4 19.5 - - - +
161I LEU* 4.8 0.7 - - - -
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Residues in contact with CYS 131 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12I HIS* 3.6 10.5 - - + +
130I GLN* 1.3 79.4 + - - +
132I VAL* 1.3 63.0 + - - +
133I GLN 3.7 7.4 + - - +
135I TYR 3.7 20.4 - - - +
136I ARG* 3.6 30.7 - - - +
161I LEU* 4.4 2.9 - - - -
163I CYS* 2.0 51.1 - - + -
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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