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CAMTA1 (calmodulin binding transcription activator 1)

Written2010-09Kai-Oliver Henrich
Division of Tumor Genetics B030, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany

(Note : for Links provided by Atlas : click)

Identity

Other aliasKIAA0833
LocusID (NCBI) 23261
Atlas_Id 908
Location 1p36.31  [Link to chromosome band 1p36]
Location_base_pair Starts at and ends at bp from pter
Fusion genes
(updated 2017)
Data from Atlas, Mitelman, Cosmic Fusion, Fusion Cancer, TCGA fusion databases with official HUGO symbols (see references in chromosomal bands)
CAMTA1 (1p36.31) / CDK17 (12q23.1)CAMTA1 (1p36.31) / DHRS3 (1p36.21)CAMTA1 (1p36.31) / DHRS3 (1p36.22)
CAMTA1 (1p36.31) / ENTPD6 (20p11.21)CAMTA1 (1p36.31) / ERRFI1 (1p36.23)CAMTA1 (1p36.31) / LPAR3 (1p22.3)
CAMTA1 (1p36.31) / THAP3 (1p36.31)CAMTA1 (1p36.31) / UMODL1 (21q22.3)CAMTA1 (1p36.31) / USP39 (2p11.2)
CAMTA1 (1p36.31) / WWTR1 (3q25.1)CD1C (1q23.1) / CAMTA1 (1p36.31)FOXJ3 (1p34.2) / CAMTA1 (1p36.31)
GPATCH3 (1p36.11) / CAMTA1 (1p36.31)MTOR (1p36.22) / CAMTA1 (1p36.31)MYT1L (2p25.3) / CAMTA1 (1p36.31)
PER3 (1p36.23) / CAMTA1 (1p36.31)PGD (1p36.22) / CAMTA1 (1p36.31)RRP1B (21q22.3) / CAMTA1 (1p36.31)
SLC22A23 (6p25.2) / CAMTA1 (1p36.31)SLC25A45 (11q13.1) / CAMTA1 (1p36.31)SRSF11 (1p31.1) / CAMTA1 (1p36.31)
TBC1D8 (2q11.2) / CAMTA1 (1p36.31)TK1 (17q25.3) / CAMTA1 (1p36.31)UMODL1 (21q22.3) / CAMTA1 (1p36.31)
WWTR1 (3q25.1) / CAMTA1 (1p36.31)ZBTB37 (1q25.1) / CAMTA1 (1p36.31)

DNA/RNA

 
  Genomic organization of CAMTA1. Arrows illustrate genomic distance. Exons are represented by vertical blue lines or bars.
Description The CAMTA1 gene (Henrich and Westermann, 2008) comprises 23 exons (all coding) spanning 984.38 kb of genomic DNA.
Transcription 8442 bp mRNA. Start codon at 208 bp. Stop codon at 5227 bp.

Protein

 
  Schematic representation of the CAMTA1 protein. Protein domains are indicated by boxes. NLS, nuclear localization signal.
Description 1673 amino acids; the protein's primary structure contains a nuclear localization signal, two DNA-binding domains (CG-1 and TIG), calmodulin binding motifs (IQ motifs) and ankyrin domains that may mediate protein-protein interactions.
Expression Although expression of CAMTA1 is found in various organs, highest levels are seen in neuronal tissues (Nagase et al., 1998). In the brain, CAMTA1 levels are highest in the temporal cortex, entorhinal cortex and in the cerebellum (Huentelman et al., 2007).
Localisation Nucleus.
Function Largely unknown. CAMTA1 has been shown to act as a transcription activator in a reporter expression system (Bouché et al., 2002). Further data on the functional role are scarce. The homolog CAMTA2 is a co-activator of the transcription factor Nkx2-5. This function is inhibited by binding of class II histone deacetylases (Song et al., 2006).
Homology Members of the CAMTA family are conserved in various eukaryotes including ciliates, plants, nematodes, insects, birds and mammals (Finkler et al., 2007). In human, two homologous CAMTAs are found, CAMTA1 and CAMTA2.

Implicated in

Note
  
Entity Neuroblastoma
Note The 1p36 smallest region of overlapping deletion in neuroblastomas spans only 261 kb and pinpoints the CAMTA1 gene (Henrich et al., 2006). In the absence of somatic mutations (Henrich et al., 2007), low CAMTA1 mRNA expression is significantly associated with markers of unfavorable tumor biology and poor neuroblastoma outcome. In multivariate survival analysis, this prognostic value is independent of established risk markers, including 1p deletion (Henrich et al., 2006).
  
  
Entity Glioma
Note CAMTA1 is homozygously deleted in a subset of gliomas (Ichimura et al., 2008) and is the only gene mapping to the smallest region of overlapping heterozygous deletion in this entity (Barbashina et al., 2005).
  
  
Entity Colon cancer
Note In colorectal cancer, loss of a 2 Mb region encompassing CAMTA1 had the strongest impact on survival among all copy number alterations identified by genome-wide copy number analysis (Kim et al., 2006). As in neuroblastoma, low expression of CAMTA1 mRNA is an independent predictor of poor outcome in colorectal cancer (Kim et al., 2006).
  

Bibliography

Allelic losses at 1p36 and 19q13 in gliomas: correlation with histologic classification, definition of a 150-kb minimal deleted region on 1p36, and evaluation of CAMTA1 as a candidate tumor suppressor gene.
Barbashina V, Salazar P, Holland EC, Rosenblum MK, Ladanyi M.
Clin Cancer Res. 2005 Feb 1;11(3):1119-28.
PMID 15709179
 
A novel family of calmodulin-binding transcription activators in multicellular organisms.
Bouche N, Scharlat A, Snedden W, Bouchez D, Fromm H.
J Biol Chem. 2002 Jun 14;277(24):21851-61. Epub 2002 Mar 29.
PMID 11925432
 
CAMTAs: calmodulin-binding transcription activators from plants to human.
Finkler A, Ashery-Padan R, Fromm H.
FEBS Lett. 2007 Aug 21;581(21):3893-8. Epub 2007 Aug 1. (REVIEW)
PMID 17689537
 
CAMTA1.
Henrich KO and Westermann F.
Encyclopedia of Cancer 2008; M. Schwab, Ed., Berlin, New York, Heidelberg, Springer. (REVIEW)
 
Allelic variants of CAMTA1 and FLJ10737 within a commonly deleted region at 1p36 in neuroblastoma.
Henrich KO, Claas A, Praml C, Benner A, Mollenhauer J, Poustka A, Schwab M, Westermann F.
Eur J Cancer. 2007 Feb;43(3):607-16. Epub 2007 Jan 11.
PMID 17222547
 
Calmodulin-binding transcription activator 1 (CAMTA1) alleles predispose human episodic memory performance.
Huentelman MJ, Papassotiropoulos A, Craig DW, Hoerndli FJ, Pearson JV, Huynh KD, Corneveaux J, Hanggi J, Mondadori CR, Buchmann A, Reiman EM, Henke K, de Quervain DJ, Stephan DA.
Hum Mol Genet. 2007 Jun 15;16(12):1469-77. Epub 2007 Apr 30.
PMID 17470457
 
1p36 is a preferential target of chromosome 1 deletions in astrocytic tumours and homozygously deleted in a subset of glioblastomas.
Ichimura K, Vogazianou AP, Liu L, Pearson DM, Backlund LM, Plant K, Baird K, Langford CF, Gregory SG, Collins VP.
Oncogene. 2008 Mar 27;27(14):2097-108. Epub 2007 Oct 15.
PMID 17934521
 
Recurrent genomic alterations with impact on survival in colorectal cancer identified by genome-wide array comparative genomic hybridization.
Kim MY, Yim SH, Kwon MS, Kim TM, Shin SH, Kang HM, Lee C, Chung YJ.
Gastroenterology. 2006 Dec;131(6):1913-24. Epub 2006 Oct 15.
PMID 17087931
 
Prediction of the coding sequences of unidentified human genes. XII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro.
Nagase T, Ishikawa K, Suyama M, Kikuno R, Hirosawa M, Miyajima N, Tanaka A, Kotani H, Nomura N, Ohara O.
DNA Res. 1998 Dec 31;5(6):355-64.
PMID 10048485
 
The transcriptional coactivator CAMTA2 stimulates cardiac growth by opposing class II histone deacetylases.
Song K, Backs J, McAnally J, Qi X, Gerard RD, Richardson JA, Hill JA, Bassel-Duby R, Olson EN.
Cell. 2006 May 5;125(3):453-66.
PMID 16678093
 

Citation

This paper should be referenced as such :
Henrich, KO
CAMTA1 (calmodulin binding transcription activator 1)
Atlas Genet Cytogenet Oncol Haematol. 2011;15(5):441-442.
Free journal version : [ pdf ]   [ DOI ]
On line version : http://AtlasGeneticsOncology.org/Genes/CAMTA1ID908ch1p36.html


Other Solid tumors implicated (Data extracted from papers in the Atlas) [ 9 ]
  Bone: Epithelioid hemangioendothelioma
Soft tissue tumors: an overview
t(1;1)(p34;p36) FOXJ3/CAMTA1
CAMTA1/DHRS3 (1p36)
CAMTA1/THAP3 (1p36)
GPATCH3/CAMTA1 (1p36)
MTOR/CAMTA1 (1p36)
PGD/CAMTA1 (1p36)
t(1;6)(p36;p25) SLC22A23/CAMTA1


External links

Nomenclature
Cards
AtlasCAMTA1ID908ch1p36.txt
Aliases
Genomic and cartography
Gene and transcription
RefSeq transcript (Entrez)
RefSeq genomic (Entrez)
SOURCE (Princeton)Expression in : [Datasets]   [Normal Tissue Atlas]  [carcinoma Classsification]  [NCI60]
BioGPS (Tissue expression)23261
Protein : pattern, domain, 3D structure
Domain families : Pfam (Sanger)
Domain families : Pfam (NCBI)
Protein Interaction databases
Ontologies - Pathways
Clinical trials, drugs, therapy
Miscellaneous
canSAR (ICR) (select the gene name)
Probes
Litterature
REVIEW articlesautomatic search in PubMed
Last year publicationsautomatic search in PubMed


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indexed on : Thu Oct 18 17:30:29 CEST 2018

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