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Types of Information That Are Stored in the Relational Database That Supports the EF-Hand Calcium-Binding Proteins Data Library

All of these types of information can be submitted to the data library via the online form-based system, except interhelical angles and inter-residue distances.


Information Type
Description
Example
(Linked to Example on Pages)
Reference Required?
Descriptive Information
Additional Name
alternative name for the protein
(for S100A9)
No
Abbreviation
abbreviation for any name for the protein
CaM (for calmodulin)
No
Chemical and Physical Information
pI
calculated or measured isoelectric point for the protein
4.7 (for hippocalcin)
Yes
Number of Functional Calcium-Binding Sites
number of binding loops that are able to bind calcium; "0" is an acceptable input
4 (for caltractin)
Yes
Metal Binding Constants
macroscopic binding constants for any metal; must input solution conditions
K1 = 5.00 x 104; K2 = 1.58 x 106; K3 = 1.00 x 104; K4 = 2.00 x 105 (for calmodulin, at high salt)
K1 = 9.50 x 104; K2 = 9.50 x 104 (for parvalbumin, at medium salt)
Yes
Protein Stability
the free energy of unfolding, and the cooperativity of the unfolding transition (if available)
free energy of unfolding: 4.78 +/- 0.24 kcal/mol, cooperativity of unfolding: 0.908 kcal/(mol M) (for calbindin D9k)
Yes
Post-Translational Modification
any change from the simple protein sequence that occurs after translation
phosphorylation on Thr113 (for S100A9)
Yes
Biological Information
Source Organism
species in which protein is found
Schistosoma japonicum, Homo sapiens, and Cricetulus longicaudatuas (for sorcin)
No (but inclusion of SWISS-PROT entry code is encouraged)
Source Tissue
tissue in which protein is found
brain (for calbindin D28k, in mammals)
Yes
Subcellular Localization
tissue in which protein is found
basal bodies (microtubule organizing center) (for caltractin, in Chlamydomonas reinhardtii
Yes
Regulation of Activity or Expression
molecule that regulates the protein, either by modulating its activty or its expression
Vitamin D (upregulates expression) (for calbindin D9k, in all sources)
Yes
Genomic Information
Gene Length
length of entire gene (not just the cDNA), in kilobases
13 kb (for hippocalcin from rat, GenBank code D12573)
Yes
Gene Structure
number, positioning, and length of introns
intron 1 is in the 5'-untranslated region, intron 2 precedes residue 13, intron 3 precedes residue 64 (for S100A5 from human, GenBank codes Z18950, Z18949)
Yes
Promoter
element in the gene that regulates expression of the gene
CCAAT-like element, 72 bp upstream from transcription start site (putative) (for calbindin D9k, in rat, GenBank code X16635)
Yes
Gene Copies
number of expressed copies of a gene
3 gene copies (code for an indentical protein) (for human calmodulin)
Yes
Allele
naturally occuring allele of a gene, expressed as a mutation in the protein sequence
D72E (for S100A5)
Yes
Chromosomal Localization
chromosome on which gene is found, and localization on the chromosome if available
sub-band E region of chromosome 15 (for alpha lineage parvalbumin from mouse, GenBank code X54613)
Yes
Functional Information
General Note on Function
comments about function that do not fit into the other categories,; comparisons of functional properties of various proteins
The calmodulin-like domain is covalently attached to its "target" kinase (for CDPK)
Yes
Biological Role of Protein
role of protein in a biological process
remodeling and disassembling the cytoskeleton (for calpain)
Yes
Signal Transduction Pathway in Which Protein is Involved
involvement of protein in a signal transduction pathway; molecule with which protein interacts in this pathway should be included if available
inflammation signal transduction pathway: interacts with arachidonic acid (for S100A8)
Yes
Disease State in Which Protein is Involved
involvement of protein in a disease state; assumed to refer to humans
psoriasis (for S100A7)
Yes
Target Molecule of Protein
molecule with which protein interacts in a biologically meaningful manner; can include drugs
phosphoglucomutase (for S100A1)
Yes
Target Activation by Wildtype Protein
ability of protein to activate a particular target, and K(act) and V(max) if available
calmodulin activates calcium/calmodulin-dependent protein kinase II
Yes
Structural Information
Calcium Coordination by Protein
coordination type and calcium ligands for each EF-hand in the protein
calcium coordination in calmodulin
No (but PDB file must already be stored in database)
Nature of a Conformational Change
conformational change observed in comparing two states of a protein (such as apo and calcium-loaded)
calcium-induced conformational change in calmodulin
Yes
Hydrogen Bonds Observed
hydrogen bonds observed in a given structure of a protein
hydrogen bonds in various calbindin D9k structures no online submission
Interhelical Angles
Angles between the four helices in a two EF-hand structural unit.
interhelical angles in various calbindin D9k structures
no online submission
Inter-residue Distances
Distance between the centers of geometry of two residues in a structure
inter-residue distances in the 1CLL structure of calcium-loaded calmodulin
no online submission
Mutant Information
Existence of a Mutant
report existence a mutant to the database
various mutations of CaBPs Yes
Phenotypic Effect of Mutant
basic effect of a mutant
F92A + F140A (mutant of calmodulin)
Yes
Target Activation by Mutant
ability of a mutant to activate a given target; includes per cent activation (relative to wildtype), K(act), and V(max), when available
M36L (mutant of calmodulin)
Yes
Please note: all of the other types of information that can pertain to a mutant can be submitted to the database as for any other protein


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