Contacts of the helix formed by residues 625 - 629 (chain Q) in PDB entry 1HI0
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 PRO 625 (chain Q).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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146Q ARG* 3.4 31.5 + - - +
542Q ARG 4.5 0.2 - - - +
543Q LYS 3.2 22.0 - - - +
545Q PRO* 3.3 32.3 - - + -
621Q VAL* 2.9 20.8 - - + +
624Q ASP* 1.3 82.2 - - - +
626Q ASN* 1.3 60.6 + - - +
627Q LYS 3.3 0.2 - - - -
628Q LEU* 3.0 23.9 - - + +
629Q GLN* 4.2 3.6 + - - +
645Q LEU* 3.8 20.0 - - + -
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Residues in contact with ASN 626 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6E C 2.7 31.4 + - - +
146Q ARG* 5.3 0.2 - - - +
529Q GLU* 4.8 5.3 + - - +
530Q TYR* 3.6 34.2 + - - -
543Q LYS* 5.2 7.7 + - - +
624Q ASP* 2.8 22.4 + - - +
625Q PRO* 1.3 74.6 - - - +
627Q LYS* 1.3 49.6 + - - +
628Q LEU 2.8 5.2 - - - -
629Q GLN* 2.6 38.9 + - - +
630Q TYR* 3.3 10.6 - - + -
666Q GTP 2.9 19.5 + - + +
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Residues in contact with LYS 627 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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524Q ASN* 3.2 27.9 + - - +
558Q TYR* 5.7 1.8 - - - -
620Q GLU* 3.9 30.1 + - - +
621Q VAL* 5.1 1.8 - - + -
624Q ASP* 3.0 33.9 + - - +
626Q ASN* 1.3 75.8 - - - +
628Q LEU* 1.3 55.9 + - - +
629Q GLN 3.0 1.6 - - - -
630Q TYR* 3.2 31.0 + - + +
631Q LYS* 3.0 38.8 + - + +
632Q TRP* 3.0 42.9 + - + -
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Residues in contact with LEU 628 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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146Q ARG* 5.9 1.3 - - - -
621Q VAL* 4.1 23.8 - - + +
624Q ASP 4.4 0.2 + - - -
625Q PRO* 3.0 17.6 + - + +
626Q ASN 2.7 0.8 + - - -
627Q LYS* 1.3 77.0 - - - +
629Q GLN* 1.3 69.0 + - + +
630Q TYR 3.5 1.1 - - - -
632Q TRP* 3.2 19.6 - - + +
633Q THR* 4.4 15.8 - - - -
634Q GLU 4.4 1.3 + - - +
637Q VAL* 3.8 29.4 - - + -
642Q HIS* 4.2 27.6 - - + +
645Q LEU* 4.2 15.0 - - + -
646Q MET* 4.4 18.2 - - + -
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Residues in contact with GLN 629 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6E C 3.1 69.1 + - + +
146Q ARG* 5.2 10.5 - - - +
399Q ASP* 6.1 1.6 - - - +
625Q PRO 4.7 5.2 - - - +
626Q ASN* 2.6 15.6 + - - +
628Q LEU* 1.3 90.1 + - - +
630Q TYR* 1.3 59.0 + - + +
646Q MET* 4.4 23.6 - - - +
666Q GTP 2.8 17.4 + - - +
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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