DDX20 DEAD-box helicase 20 [Homo sapiens (human)] - Gene

Summary

Official Symbol: DDX20provided by HGNC
Official Full Name: DEAD-box helicase 20provided by HGNC
Primary source: HGNC:HGNC:2743
See related: Ensembl:ENSG00000064703 MIM:606168; AllianceGenome:HGNC:2743
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: DP103; GEMIN3
Summary: 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. This gene encodes a DEAD box protein, which has an ATPase activity and is a component of the survival of motor neurons (SMN) complex. This protein interacts directly with SMN, the spinal muscular atrophy gene product, and may play a catalytic role in the function of the SMN complex on RNPs. [provided by RefSeq, Jul 2008]
Expression: Broad expression in testis (RPKM 58.2), bone marrow (RPKM 6.4) and 17 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 1p13.2

Exon count:: 11

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	1	NC_000001.11 (111755901..111768000)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	1	NC_060925.1 (111770803..111782899)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	1	NC_000001.10 (112298523..112310622)

Chromosome 1 - NC_000001.11 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: HPA RNA-seq normal tissues
Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
BioProject: PRJEB4337
Publication: PMID 24309898
Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

A Macrophage Differentiation-Mediated Gene: DDX20 as a Molecular Biomarker Encompassing the Tumor Microenvironment, Disease Staging, and Prognoses in Hepatocellular Carcinoma.
Title: A Macrophage Differentiation-Mediated Gene: DDX20 as a Molecular Biomarker Encompassing the Tumor Microenvironment, Disease Staging, and Prognoses in Hepatocellular Carcinoma.
Genetic Variation in DEAD-Box Helicase 20 as a Putative Marker of Recurrence in Propensity-Matched Colon Cancer Patients.
Title: Genetic Variation in DEAD-Box Helicase 20 as a Putative Marker of Recurrence in Propensity-Matched Colon Cancer Patients.
The combined detection of Amphiregulin, Cyclin A1 and DDX20/Gemin3 expression predicts aggressive forms of oral squamous cell carcinoma.
Title: The combined detection of Amphiregulin, Cyclin A1 and DDX20/Gemin3 expression predicts aggressive forms of oral squamous cell carcinoma.
Human bone mesenchymal stem cells-derived exosomal miRNA-361-5p alleviates osteoarthritis by downregulating DDX20 and inactivating the NF-kappaB signaling pathway.
Title: Human bone mesenchymal stem cells-derived exosomal miRNA-361-5p alleviates osteoarthritis by downregulating DDX20 and inactivating the NF-κB signaling pathway.
Death-associated protein kinase 1 suppresses hepatocellular carcinoma cell migration and invasion by upregulation of DEAD-box helicase 20.
Title: Death-associated protein kinase 1 suppresses hepatocellular carcinoma cell migration and invasion by upregulation of DEAD-box helicase 20.
Our data has shown that GEMIN3 gene (rs197388) polymorphisms might be associated with a risk of POAG development in the Polish population. This is the first report evaluating the polymorphic variants of miRNA processing genes, RAN and GEMIN3, with a changed risk of glaucoma.
Title: Analysis of the polymorphic variants of RAN and GEMIN3 genes and risk of Primary Open-Angle Glaucoma in the Polish population.
The findings show that DDX20 may promote the progression of prostate cancer through the NF-kappaB pathway.
Title: High expression of DDX20 enhances the proliferation and metastatic potential of prostate cancer cells through the NF-κB pathway.
In stage-adjusted analysis, the nominal associations of DDX20-rs197412, PTGS2-rs5275, and HSPA5-rs391957 with DFS were detected. However, after FDR correction none of these polymorphisms remained significantly associated with the survival outcomes
Title: A Survival Association Study of 102 Polymorphisms Previously Associated with Survival Outcomes in Colorectal Cancer.
DP103 defines metastatic potential of human breast cancers.
Title: DEAD-box helicase DP103 defines metastatic potential of human breast cancers.
Impairment of miRNA-140 function due to a deficiency of DDX20, a miRNA machinery component, could lead to hepatocarcinogenesis
Title: MicroRNA-140 acts as a liver tumor suppressor by controlling NF-κB activity by directly targeting DNA methyltransferase 1 (Dnmt1) expression.

Submit: New GeneRIF Correction See all GeneRIFs (20)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

HIV-1 interactions

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Protein interactions

Protein	Gene	Interaction	Pubs
Vpr	vpr	HIV-1 Vpr is identified to have a physical interaction with DEAD (Asp-Glu-Ala-Asp) box polypeptide 20 (DDX20) in human HEK293 and/or Jurkat cell lines by using affinity tagging and purification mass spectrometry analyses	PubMed

Go to the HIV-1, Human Interaction Database

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

SHGC-31883 (e-PCR)
- UniSTS:43350

WI-19890 (e-PCR)
- UniSTS:31205

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables ATP binding	IEA Inferred from Electronic Annotation more info
enables ATP hydrolysis activity	IEA Inferred from Electronic Annotation more info
enables ATP-dependent H2AZ histone chaperone activity	IEA Inferred from Electronic Annotation more info
enables ATP-dependent H3-H4 histone complex chaperone activity	IEA Inferred from Electronic Annotation more info
enables DNA binding	IEA Inferred from Electronic Annotation more info
enables DNA clamp loader activity	IEA Inferred from Electronic Annotation more info
enables DNA-binding transcription factor binding	IPI Inferred from Physical Interaction more info	PubMed
enables RNA helicase activity	IBA Inferred from Biological aspect of Ancestor more info
enables chromatin extrusion motor activity	IEA Inferred from Electronic Annotation more info
enables cohesin loader activity	IEA Inferred from Electronic Annotation more info
enables histone deacetylase binding	IEA Inferred from Electronic Annotation more info
enables mRNA binding	IBA Inferred from Biological aspect of Ancestor more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein domain specific binding	IEA Inferred from Electronic Annotation more info
enables protein-macromolecule adaptor activity	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in RNA processing	TAS Traceable Author Statement more info	PubMed
involved_in chromatin looping	IEA Inferred from Electronic Annotation more info
involved_in chromatin remodeling	IEA Inferred from Electronic Annotation more info
involved_in negative regulation of cell population proliferation	IEA Inferred from Electronic Annotation more info
involved_in negative regulation of transcription by RNA polymerase II	IDA Inferred from Direct Assay more info	PubMed
involved_in oogenesis	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within positive regulation of apoptotic process	IGI Inferred from Genetic Interaction more info	PubMed
involved_in positive regulation of apoptotic process	ISS Inferred from Sequence or Structural Similarity more info
involved_in regulation of steroid biosynthetic process	IEA Inferred from Electronic Annotation more info
involved_in spliceosomal snRNP assembly	EXP Inferred from Experiment more info	PubMed
involved_in spliceosomal snRNP assembly	IBA Inferred from Biological aspect of Ancestor more info
involved_in spliceosomal snRNP assembly	IDA Inferred from Direct Assay more info	PubMed
involved_in spliceosomal tri-snRNP complex assembly	TAS Traceable Author Statement more info	PubMed

Component	Evidence Code	Pubs
located_in Gemini of coiled bodies	IEA Inferred from Electronic Annotation more info
part_of RNA polymerase II transcription repressor complex	IEA Inferred from Electronic Annotation more info
part_of SMN complex	IBA Inferred from Biological aspect of Ancestor more info
part_of SMN complex	IDA Inferred from Direct Assay more info	PubMed
part_of SMN complex	IPI Inferred from Physical Interaction more info	PubMed
part_of SMN-Sm protein complex	IDA Inferred from Direct Assay more info	PubMed
located_in cytoplasm	TAS Traceable Author Statement more info	PubMed
located_in cytoskeleton	TAS Traceable Author Statement more info	PubMed
located_in cytosol	IDA Inferred from Direct Assay more info	PubMed
located_in cytosol	TAS Traceable Author Statement more info
located_in membrane	HDA more info	PubMed
located_in nuclear body	IDA Inferred from Direct Assay more info
located_in nucleoplasm	IDA Inferred from Direct Assay more info
located_in nucleoplasm	TAS Traceable Author Statement more info
located_in nucleus	TAS Traceable Author Statement more info	PubMed

General protein information

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Preferred Names: probable ATP-dependent RNA helicase DDX20

Names: DEAD (Asp-Glu-Ala-Asp) box polypeptide 20; DEAD box protein 20; DEAD box protein DP 103; DEAD-box protein DP103; DEAD/H (Asp-Glu-Ala-Asp/His) box polypeptide 20, 103kD; SMN-interacting protein; component of gems 3; gemin-3

NP_009135.4

EC 3.6.1.15

EC 3.6.4.13

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_007204.5 → NP_009135.4 probable ATP-dependent RNA helicase DDX20

See identical proteins and their annotated locations for NP_009135.4

Status: REVIEWED

Source sequence(s)

AF171063, AK001506, AL049557, AY007146

Consensus CDS

CCDS842.1

UniProtKB/Swiss-Prot

B4DWV7, Q96F72, Q9NVM3, Q9UF59, Q9UHI6, Q9UIY0, Q9Y659

UniProtKB/TrEMBL

Q8IYV2, Q8NEH0

Related

ENSP00000358716.4, ENST00000369702.5

Conserved Domains (3) summary

smart00487
Location:77 → 279

DEXDc; DEAD-like helicases superfamily

pfam00271
Location:294 → 404

Helicase_C; Helicase conserved C-terminal domain

cl21455
Location:64 → 265

P-loop_NTPase; P-loop containing Nucleoside Triphosphate Hydrolases