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M9640626.TXT
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1996-03-04
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Document 0626
DOCN M9640626
TI Suppression of apoptosis in mammalian cells by NAIP and a related family
of IAP genes.
DT 9604
AU Liston P; Roy N; Tamai K; Lefebvre C; Baird S; Cherton-Horvat G;
Farahani R; McLean M; Ikeda JE; MacKenzie A; Korneluk RG; Molecular
Genetics Research Laboratory, Children's Hospital of; Eastern Ontario,
Ottawa, Canada.
SO Nature. 1996 Jan 25;379(6563):349-53. Unique Identifier : AIDSLINE
GENBANK/M96581
AB Dysregulation of apoptosis can result in inappropriate suppression of
cell death, as occurs in the development of some cancers, or in failure
to control the extent of cell death, as is believed to occur in acquired
immunodeficiency and certain neurodegenerative disorders, such as spinal
muscular atrophy (SMA). Recently, we isolated a candidate gene, encoding
neuronal apoptosis inhibitor protein (NAIP), for SMA. This gene is
homologous to two baculovirus inhibitor of apoptosis proteins (Cp-IAP
and Op-IAP) and is partly deleted in individuals with type I SMA. A
second SMA candidate gene encoding survival motor neuron (SMN), which is
contiguous with the NAIP locus on 5q13.1, was also reported. Here we
demonstrate a NAIP-mediated inhibition of apoptosis induced by a variety
of signals, and have identified three additional human complementary
DNAs and a Drosophila melanogaster sequence that are also homologous to
the baculovirus IAPs. The four open reading frames (ORFs) possess three
baculoviral inhibition of apoptosis protein repeat (BIR) domains and a
carboxy-terminal RING zinc-finger. The human iap genes have a distinct
but overlapping pattern of expression in fetal and adult tissues. These
proteins significantly increase the number of known apoptotic
suppressors.
DE Adult Amino Acid Sequence Animal Apoptosis/DRUG
EFFECTS/GENETICS/*PHYSIOLOGY Baculoviridae/GENETICS Base Sequence
Cell Line CHO Cells Drosophila melanogaster/GENETICS DNA Primers
DNA, Complementary Fetus/METABOLISM Genes, Reiterated Hamsters Hela
Cells Human Mice Molecular Sequence Data Muscular Atrophy,
Spinal/GENETICS Nerve Tissue Proteins/GENETICS/*PHYSIOLOGY Sequence
Homology, Amino Acid Support, Non-U.S. Gov't Transfection Tumor
Necrosis Factor/PHARMACOLOGY Viral Proteins/GENETICS Vitamin
K/PHARMACOLOGY Zinc Fingers/GENETICS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).