ATP-dependent RNA helicase A (RHA; also known as DHX9, LKP, and NDHI) is an

enzyme Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...

that in humans is encoded by the ''DHX9''

gene In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba ...

Function

DEAD/DEAH box helicases are proteins, and are putative RNA

helicases Helicases are a class of enzymes thought to be vital to all organisms. Their main function is to unpack an organism's genetic material. Helicases are motor proteins that move directionally along a nucleic acid phosphodiester backbone, separati ...

. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein with RNA helicase activity. It may participate in melting of DNA:RNA hybrids, such as those that occur during transcription, and may play a role in X-linked gene expression. It contains 2 copies of a double-stranded RNA-binding domain, a DEXH core domain and an RGG box. The RNA-binding domains and RGG box influence and regulate RNA helicase activity. The ''DHX9'' gene is located on the long arm ''q'' of

chromosome 1 Chromosome 1 is the designation for the largest human chromosome. Humans have two copies of chromosome 1, as they do with all of the autosomes, which are the non-sex chromosomes. Chromosome 1 spans about 249 million nucleotide base pairs, which ar ...

Interactions

DHX9 has been shown to

interact Advocates for Informed Choice, dba interACT or interACT Advocates for Intersex Youth, is a 501(c)(3) nonprofit organization using innovative strategies to advocate for the legal and human rights of children with intersex traits. The organizati ...

with: *

AKAP8L A-kinase anchor protein 8-like is a protein that in humans is encoded by the ''AKAP8L'' gene. Interactions AKAP8L has been shown to interact with: * DHX9, and * Thymopoietin Lamina-associated polypeptide 2 (LAP2), isoforms beta/gamma is a pro ...

, *

BRCA1 Breast cancer type 1 susceptibility protein is a protein that in humans is encoded by the ''BRCA1'' () gene. Orthologs are common in other vertebrate species, whereas invertebrate genomes may encode a more distantly related gene. ''BRCA1'' is a h ...

, * DDX17 (p72) * DDX5 (p68), *

KHDRBS1 KH domain-containing, RNA-binding, signal transduction-associated protein 1 is a protein that in humans is encoded by the ''KHDRBS1'' gene. This gene encodes a member of the K homology domain-containing, RNA-binding, signal transduction-associated ...

, *

MIZF Histone H4 transcription factor is a protein that in humans is encoded by the ''HINFP'' gene. Function HINFP is a protein that binds to a highly conserved DNA motif found in most histone H4 genes. HINFP activates H4 gene expression through i ...

, *

NXF1 Nuclear RNA export factor 1, also known as NXF1 or TAP, is a protein which in humans is encoded by the ''NXF1'' gene. Function This gene is one member of a family of nuclear RNA export factor genes. Common domain features of this family are a no ...

, *

PRMT1 Protein arginine N-methyltransferase 1 is an enzyme that in humans is encoded by the ''PRMT1'' gene. The HRMT1L2 gene encodes a protein arginine methyltransferase that functions as a histone methyltransferase specific for histone H4. Function ...

, *

RELA Transcription factor p65 also known as nuclear factor NF-kappa-B p65 subunit is a protein that in humans is encoded by the ''RELA'' gene. RELA, also known as p65, is a REL-associated protein involved in NF-κB heterodimer formation, nuclear tran ...

, and *

SMN1 Survival of motor neuron 1 (''SMN1''), also known as component of gems 1 or ''GEMIN1'', is a gene that encodes the SMN protein in humans. Gene ''SMN1'' is the telomeric copy of the gene encoding the SMN protein; the centromeric copy is term ...

Function

Interactions

References

Further reading