AANAT (gene)

AANAT
Identifiers
Aliases AANAT, DSPS, SNAT, aralkylamine N-acetyltransferase
External IDs MGI: 1328365 HomoloGene: 31013 GeneCards: AANAT
Orthologs
Species Human Mouse
Entrez

15

11298

Ensembl

ENSG00000129673

ENSMUSG00000020804

UniProt

Q16613

O88816

RefSeq (mRNA)

NM_001088
NM_001166579

NM_009591

RefSeq (protein)

NP_001079.1
NP_001160051.1

NP_033721.1

Location (UCSC) Chr 17: 76.45 – 76.47 Mb Chr 11: 116.59 – 116.6 Mb
PubMed search [1] [2]
Wikidata
View/Edit HumanView/Edit Mouse

AANAT is a gene that encodes an enzyme aralkylamine N-acetyltransferase.[3] It is the key regulator of day-night cycle (circadian rhythm). It is found in all animals. In humans it is present on chromosome 17, in chimpanzees chromosome 17, in mouse and sheep chromosome 11, in rat chromosome 10, and in chicken chromosome 18.[4]

Function

The protein encoded by this gene belongs to the acetyltransferase superfamily. It is the penultimate enzyme in melatonin synthesis and controls the night/day rhythm in melatonin production in the vertebrate pineal gland. Melatonin is essential for the function of the circadian clock that influences activity and sleep. This enzyme is regulated by cAMP-dependent phosphorylation that promotes its interaction with 14-3-3 proteins and thus protects the enzyme against proteasomal degradation.[3]

Clinical significance

This gene may contribute to numerous genetic diseases such as delayed sleep phase syndrome.[3]

References

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

External links

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