DDX23 information

DDX23
Available structures
PDB	Human UniProt search: PDBe RCSB
List of PDB id codes
	4NHO, 3JCR
Identifiers
Aliases	DDX23, PRPF28, SNRNP100, U5-100K, U5-100KD, prp28, DEAD-box helicase 23
External IDs	OMIM: 612172; MGI: 1921601; HomoloGene: 3542; GeneCards: DDX23; OMA:DDX23 - orthologs
Gene location (Human)
Chr.	Chromosome 12 (human)
End	48,852,842 bp
Gene location (Mouse)
Chr.	Chromosome 15 (mouse)
End	98,560,775 bp
RNA expression pattern
	Top expressed in
	Achilles tendon; ; sural nerve; ; granulocyte; ; ventricular zone; ; right uterine tube; ; body of stomach; ; ganglionic eminence; ; rectum; ; right lobe of thyroid gland; ; transverse colon;
	Top expressed in
	neural layer of retina; ; ventricular zone; ; muscle of thigh; ; yolk sac; ; tail of embryo; ; esophagus; ; superior frontal gyrus; ; genital tubercle; ; dentate gyrus of hippocampal formation granule cell; ; lip;
	More reference expression data
	; ;
	More reference expression data
Gene ontology
Molecular function	nucleotide binding; helicase activity; protein binding; nucleic acid binding; hydrolase activity; ATP binding; RNA binding;
Cellular component	catalytic step 2 spliceosome; U5 snRNP; nucleoplasm; spliceosomal complex; extracellular exosome; nucleus; nucleolus; cytoplasm;
Biological process	mRNA splicing, via spliceosome; RNA splicing, via transesterification reactions; mRNA processing; RNA secondary structure unwinding; RNA splicing; cis assembly of pre-catalytic spliceosome;
	Sources:Amigo / QuickGO
Orthologs
	9416
	74351
	ENSG00000174243
	ENSMUSG00000003360
	Q9BUQ8
	n/a
	NM_004818
	NM_001080981
	NP_004809
	n/a
	Wikidata
View/Edit Human	View/Edit Mouse

Probable ATP-dependent RNA helicase DDX23 is an enzyme that in humans is encoded by the DDX23 gene.^[5]^[6]^[7]

This gene encodes a member of the DEAD box protein family. DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. 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. The protein encoded by this gene is a component of the U5 snRNP complex; it may facilitate conformational changes in the spliceosome during nuclear pre-mRNA splicing. An alternatively spliced transcript variant has been found for this gene, but its biological validity has not been determined.^[7]

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000174243 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000003360 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Teigelkamp S, Mundt C, Achsel T, Will CL, Luhrmann R (Jan 1998). "The human U5 snRNP-specific 100-kD protein is an RS domain-containing, putative RNA helicase with significant homology to the yeast splicing factor Prp28p". RNA. 3 (11): 1313–26. PMC 1369570. PMID 9409622.
^ Laggerbauer B, Achsel T, Luhrmann R (May 1998). "The human U5-200kD DEXH-box protein unwinds U4/U6 RNA duplices in vitro". Proc Natl Acad Sci U S A. 95 (8): 4188–92. Bibcode:1998PNAS...95.4188L. doi:10.1073/pnas.95.8.4188. PMC 22463. PMID 9539711.
^ ^a ^b "Entrez Gene: DDX23 DEAD (Asp-Glu-Ala-Asp) box polypeptide 23".

[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000174243 – Ensembl, May 2017

[refGRCm38Ensembl-2] GRCm38: Ensembl release 89: ENSMUSG00000003360 – Ensembl, May 2017

[3] "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[4] "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[pmid9409622-5] Teigelkamp S, Mundt C, Achsel T, Will CL, Luhrmann R (Jan 1998). "The human U5 snRNP-specific 100-kD protein is an RS domain-containing, putative RNA helicase with significant homology to the yeast splicing factor Prp28p". RNA. 3 (11): 1313–26. PMC 1369570. PMID 9409622.

[pmid9539711-6] Laggerbauer B, Achsel T, Luhrmann R (May 1998). "The human U5-200kD DEXH-box protein unwinds U4/U6 RNA duplices in vitro". Proc Natl Acad Sci U S A. 95 (8): 4188–92. Bibcode:1998PNAS...95.4188L. doi:10.1073/pnas.95.8.4188. PMC 22463. PMID 9539711.

[entrez-7] "Entrez Gene: DDX23 DEAD (Asp-Glu-Ala-Asp) box polypeptide 23".