Download Gene Section RECQL4 (RecQ protein-like 4) Atlas of Genetics and Cytogenetics

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Transcript
Atlas of Genetics and Cytogenetics
in Oncology and Haematology
OPEN ACCESS JOURNAL AT INIST-CNRS
Gene Section
Mini Review
RECQL4 (RecQ protein-like 4)
Alessandro Beghini
Department of Biology and Genetics for Medical Sciences, Medical Faculty, University of Milan, Via Viotti
3/5, 20133 Milan, Italy (AB)
Published in Atlas Database: October 2001
Online updated version : http://AtlasGeneticsOncology.org/Genes/RECQL4ID285.html
DOI: 10.4267/2042/37810
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 2.0 France Licence.
© 2002 Atlas of Genetics and Cytogenetics in Oncology and Haematology
Identity
DNA/RNA
Other names: RecQ4; RTS; RecQ protein like 4; ATPdependent DNA helicase Q4
HGNC (Hugo): RECQL4
Location: 8q24.3
Description
Spans 6,46 kb; 21 exons; helicase domain is encoded
by exons from 8 to 14.
Transcription
3,62 kb mRNA.
Atlas Genet Cytogenet Oncol Haematol. 2002; 6(1)
21
RECQL4 (RecQ protein-like 4)
Beghini A
Protein
Implicated in
Description
Rothmund-Thomson Syndrome
1208 aa; 13,3 kDa; belongs to the RecQ subfamily of
helicases and contains from aa 476 to 824 an helicase
domain with a potential ATP binding site from aa 502
to 509, and the DEAH box from aa 605 to 608.
Disease
Autosomal recessive disorder associated with genomic
instability, cancer predisposition and premature ageing.
References
Expression
Kitao S, Ohsugi I, Ichikawa K, Goto M, Furuichi Y, Shimamoto
A. Cloning of two new human helicase genes of the RecQ
family: biological significance of multiple species in higher
eukaryotes. Genomics. 1998 Dec 15;54(3):443-52
The RecQ4 gene is predominantly expressed in thymus
and testis and at low levels in other organs such as
heart, brain, placenta, pancreas, small intestine, and
colon, indicating that the expression of RecQ4 gene is
somewhat tissue-specific. The overall expression
profile resembles that of the BLM gene. Interestingly,
the expression of RecQ4 gene is partially upregulated
in the G1/S phase of cell cycle.
Kitao S, Lindor NM, Shiratori M, Furuichi Y, Shimamoto A.
Rothmund-thomson syndrome responsible gene, RECQL4:
genomic structure and products. Genomics. 1999 Nov
1;61(3):268-76
Kitao S, Shimamoto A, Goto M, Miller RW, Smithson WA,
Lindor NM, Furuichi Y. Mutations in RECQL4 cause a subset
of cases of Rothmund-Thomson syndrome. Nat Genet. 1999
May;22(1):82-4
Localisation
Nuclear.
Function
Karow JK, Wu L, Hickson ID. RecQ family helicases: roles in
cancer and aging. Curr Opin Genet Dev. 2000 Feb;10(1):32-8
Suppresses promiscuous genetic recombination and
ensures accurate chromosome segregation.
Lindor NM, Furuichi Y, Kitao S, Shimamoto A, Arndt C, Jalal S.
Rothmund-Thomson syndrome due to RECQ4 helicase
mutations: report and clinical and molecular comparisons with
Bloom syndrome and Werner syndrome. Am J Med Genet.
2000 Jan 31;90(3):223-8
Homology
WRN/RECQ3, BLM/RECQ2.
Mohaghegh P, Hickson ID. DNA helicase deficiencies
associated with cancer predisposition and premature ageing
disorders. Hum Mol Genet. 2001 Apr;10(7):741-6
Mutations
Germinal
See diagram of loss-of-function mutations
Rothmund-Thomson Syndrome patients.
Atlas Genet Cytogenet Oncol Haematol. 2002; 6(1)
This article should be referenced as such:
in
Beghini A. RECQL4 (RecQ protein-like 4). Atlas Genet
Cytogenet Oncol Haematol. 2002; 6(1):21-22.
22