DDHD2 DDHD domain containing 2 [Homo sapiens (human)] - Gene

Summary

Official Symbol: DDHD2provided by HGNC
Official Full Name: DDHD domain containing 2provided by HGNC
Primary source: HGNC:HGNC:29106
See related: Ensembl:ENSG00000085788 MIM:615003; AllianceGenome:HGNC:29106
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: SPG54; p125B; SAMWD1; iPLA1A; iPLA1gamma; iPLA(1)gamma
Summary: This gene encodes a phospholipase enzyme containing sterile-alpha-motif (SAM), WWE, and DDHD domains. This protein participates in membrane trafficking between the endoplastic reticulum and the Golgi body. Mutations in this gene can cause autosomal recessive spastic paraplegia 54. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]
Expression: Ubiquitous expression in brain (RPKM 15.7), fat (RPKM 12.4) and 25 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 8p11.23

Exon count:: 21

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	8	NC_000008.11 (38231585..38273647)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	8	NC_060932.1 (38508534..38550602)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	8	NC_000008.10 (38089103..38120354)

Chromosome 8 - NC_000008.11 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: Tissue-specific circular RNA induction during human fetal development
Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
BioProject: PRJNA270632
Publication: PMID 26076956
Analysis date: Mon Apr 2 22:54:59 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Radiation-Induced Endothelial Ferroptosis Accelerates Atherosclerosis via the DDHD2-Mediated Nrf2/GPX4 Pathway.
Title: Radiation-Induced Endothelial Ferroptosis Accelerates Atherosclerosis via the DDHD2-Mediated Nrf2/GPX4 Pathway.
Panoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function variants in TMEM141, DDHD2, and LHFPL5.
Title: Panoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function variants in TMEM141, DDHD2, and LHFPL5.
DDHD2, whose mutations cause spastic paraplegia type 54, enhances lipophagy via engaging ATG8 family proteins.
Title: DDHD2, whose mutations cause spastic paraplegia type 54, enhances lipophagy via engaging ATG8 family proteins.
Biallelic DDHD2 mutations in patients with adult-onset complex hereditary spastic paraplegia.
Title: Biallelic DDHD2 mutations in patients with adult-onset complex hereditary spastic paraplegia.
Circular RNA circRUNX1 promotes papillary thyroid cancer progression and metastasis by sponging MiR-296-3p and regulating DDHD2 expression.
Title: Circular RNA circRUNX1 promotes papillary thyroid cancer progression and metastasis by sponging MiR-296-3p and regulating DDHD2 expression.
Common genetic risk variants identified in the SPARK cohort support DDHD2 as a candidate risk gene for autism.
Title: Common genetic risk variants identified in the SPARK cohort support DDHD2 as a candidate risk gene for autism.
Genome-wide landscape of RNA-binding protein target site dysregulation reveals a major impact on psychiatric disorder risk.
Title: Genome-wide landscape of RNA-binding protein target site dysregulation reveals a major impact on psychiatric disorder risk.
The identification of nine novel variants expands the molecular spectrum of DDHD2-related hereditary spastic paraplegia
Title: Defining the clinical-genetic and neuroradiological features in SPG54: description of eight additional cases and nine novel DDHD2 variants.
The protective role of DDHD2 for mitochondrial integrity and provide a clue to the pathogenic mechanism of SPG54.
Title: Loss of DDHD2, whose mutation causes spastic paraplegia, promotes reactive oxygen species generation and apoptosis.
A set of HSP-related mutations in DDHD2 disrupt triglyceride hydrolase activity in vitro and impair the capacity of DDHD2 to protect cells from lipid droplet accumulation after exposure to free fatty acid.Genetic inactivation of DDHD2 from HSP-associated mutations perturbs lipid homeostasis and the formation and content of LDs. DDHD2 plays a role in triglyceride metabolism for normal CNS function.
Title: Functional Contribution of the Spastic Paraplegia-Related Triglyceride Hydrolase DDHD2 to the Formation and Content of Lipid Droplets.

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

Associated conditions

Description	Tests
Hereditary spastic paraplegia 54 MedGen: C3539495 OMIM: 615033 GeneReviews: Not available	Compare labs

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

D11S2921 (e-PCR)
- UniSTS:152074

L17688 (e-PCR)
- UniSTS:74509

WI-15923 (e-PCR)
- UniSTS:5679

D8S2279 (e-PCR)
- UniSTS:473907

AFM265zf9 (e-PCR), detects polymorphism
- UniSTS:85085

D10S16 (e-PCR)
- UniSTS:155756

D1S1423 (e-PCR)
- UniSTS:149619

D1S1425 (e-PCR)
- UniSTS:149621

D11S3114 (e-PCR)
- UniSTS:152207

D8S536 (e-PCR)
- UniSTS:12736

RH15846 (e-PCR)
- UniSTS:22245

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables diacylglycerol lipase activity	IEA Inferred from Electronic Annotation more info
enables metal ion binding	IEA Inferred from Electronic Annotation more info
enables phospholipase activity	IBA Inferred from Biological aspect of Ancestor more info
enables triacylglycerol lipase activity	IBA Inferred from Biological aspect of Ancestor more info

Process	Evidence Code	Pubs
involved_in lipid droplet organization	IEA Inferred from Electronic Annotation more info
involved_in locomotory behavior	IEA Inferred from Electronic Annotation more info
involved_in mitochondrial fission	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of mitochondrial fission	IEA Inferred from Electronic Annotation more info
involved_in triglyceride catabolic process	IEA Inferred from Electronic Annotation more info
involved_in visual learning	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
is_active_in COPII-coated ER to Golgi transport vesicle	IBA Inferred from Biological aspect of Ancestor more info
located_in Golgi apparatus	IEA Inferred from Electronic Annotation more info
located_in centriolar satellite	IDA Inferred from Direct Assay more info
is_active_in cytoplasm	IBA Inferred from Biological aspect of Ancestor more info
located_in cytosol	IDA Inferred from Direct Assay more info
located_in cytosol	TAS Traceable Author Statement more info
located_in endoplasmic reticulum-Golgi intermediate compartment	IEA Inferred from Electronic Annotation more info
located_in membrane	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: triacylglycerol hydrolase DDHD2; phospholipase DDHD2

Names: PA-PLA1 like; SAM, WWE and DDHD domain-containing protein 1; TAG hydrolase; intracellular phospholipase A1gamma; sec23p-interacting protein p125-like phosphatidic acid-preferring phospholipase A1; triglyceride hydrolase DDHD2; triglyceride lipase

NP_001157704.1

EC 3.1.1.3

NP_001157706.1

EC 3.1.1.3

NP_001349840.1

EC 3.1.1.3

NP_001349841.1

EC 3.1.1.3

NP_001349842.1

EC 3.1.1.3

NP_001349843.1

EC 3.1.1.3

NP_056029.2

EC 3.1.1.3

XP_011542758.1

EC 3.1.1.3

XP_047277570.1

EC 3.1.1.3

XP_047277571.1

EC 3.1.1.3

XP_047277572.1

EC 3.1.1.3

XP_047277573.1

EC 3.1.1.3

XP_054216159.1

EC 3.1.1.3

XP_054216160.1

EC 3.1.1.3

XP_054216161.1

EC 3.1.1.3

XP_054216162.1

EC 3.1.1.3

XP_054216163.1

EC 3.1.1.3

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.

Genomic

NG_033875.2 RefSeqGene

Range

5002..36253

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GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001164232.2 → NP_001157704.1 triacylglycerol hydrolase DDHD2 isoform 1

See identical proteins and their annotated locations for NP_001157704.1

Status: REVIEWED

Description

Transcript Variant: This variant (2) differs in the 5' UTR compared to variant 1. Both variants 1 and 2 encode the same isoform (1).

Source sequence(s)

AB018268, AC087362, AK125904, BM510691

Consensus CDS

CCDS34883.1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6

Related

ENSP00000429932.2, ENST00000520272.6

Conserved Domains (3) summary

cd09585
Location:379 → 447

SAM_DDHD2; SAM domain of DDHD2

pfam02825
Location:42 → 112

WWE; WWE domain

pfam02862
Location:498 → 699

DDHD; DDHD domain
NM_001164234.2 → NP_001157706.1 triacylglycerol hydrolase DDHD2 isoform 2

Status: REVIEWED

Description

Transcript Variant: This variant (3) lacks multiple 3' coding exons and its 3' terminal exon extends past a splice junction that is used in variant 1, resulting in a different 3' coding region and 3' UTR. It encodes isoform 2, which has a shorter and distinct C-terminus compared to isoform 1.

Source sequence(s)

AC084024, BI789108, DA333302

UniProtKB/TrEMBL

E9PKE6

Related

ENST00000519857.5

Conserved Domains (1) summary

pfam02825
Location:42 → 99

WWE; WWE domain
NM_001362911.2 → NP_001349840.1 triacylglycerol hydrolase DDHD2 isoform 1

Status: REVIEWED

Source sequence(s)

AB018268, AK056525, AK125904, BM510691, DA412370

Consensus CDS

CCDS34883.1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6

Conserved Domains (3) summary

cd09585
Location:379 → 447

SAM_DDHD2; SAM domain of DDHD2

pfam02825
Location:42 → 112

WWE; WWE domain

pfam02862
Location:498 → 699

DDHD; DDHD domain
NM_001362912.2 → NP_001349841.1 triacylglycerol hydrolase DDHD2 isoform 1

Status: REVIEWED

Source sequence(s)

AB018268, AK056525, AK125904, BM510691, BM698122, DA412370, DA531740

Consensus CDS

CCDS34883.1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6

Conserved Domains (3) summary

cd09585
Location:379 → 447

SAM_DDHD2; SAM domain of DDHD2

pfam02825
Location:42 → 112

WWE; WWE domain

pfam02862
Location:498 → 699

DDHD; DDHD domain
NM_001362913.2 → NP_001349842.1 triacylglycerol hydrolase DDHD2 isoform 3

Status: REVIEWED

Source sequence(s)

AB018268, AC087362, AK056525, AK125904, BM510691, DA412370, DN989297

UniProtKB/TrEMBL

B3KPM6

Conserved Domains (3) summary

cd09585
Location:349 → 417

SAM_DDHD2; SAM domain of DDHD2

pfam02825
Location:42 → 112

WWE; WWE domain

pfam02862
Location:468 → 669

DDHD; DDHD domain
NM_001362914.2 → NP_001349843.1 triacylglycerol hydrolase DDHD2 isoform 1

Status: REVIEWED

Source sequence(s)

AB018268, AC084024, AC087362, AK056525, AK125904, BM510691

Consensus CDS

CCDS34883.1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6

Conserved Domains (3) summary

cd09585
Location:379 → 447

SAM_DDHD2; SAM domain of DDHD2

pfam02825
Location:42 → 112

WWE; WWE domain

pfam02862
Location:498 → 699

DDHD; DDHD domain
NM_015214.3 → NP_056029.2 triacylglycerol hydrolase DDHD2 isoform 1

See identical proteins and their annotated locations for NP_056029.2

Status: REVIEWED

Description

Transcript Variant: This variant (1) represents the longest transcript and encodes the longer isoform (1). Both variants 1 and 2 encode the same isoform (1).

Source sequence(s)

AB018268, AC087362, AK056525, AK125904, BM510691, DA412370

Consensus CDS

CCDS34883.1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6

Related

ENSP00000380352.2, ENST00000397166.7

Conserved Domains (3) summary

cd09585
Location:379 → 447

SAM_DDHD2; SAM domain of DDHD2

pfam02825
Location:42 → 112

WWE; WWE domain

pfam02862
Location:498 → 699

DDHD; DDHD domain

RNA

NR_156416.2 RNA Sequence

Status: REVIEWED

Source sequence(s)

AB018268, AC087362, AK056525, AK125904, BM510691, BM684667, DA412370, DA758753
NR_156417.2 RNA Sequence

Status: REVIEWED

Source sequence(s)

AB018268, AK056525, AK125904, BM510691, DA412370, DA758753

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

NC_000008.11 Reference GRCh38.p14 Primary Assembly

Range

38231585..38273647

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

XM_011544456.3 → XP_011542758.1 phospholipase DDHD2 isoform X1

See identical proteins and their annotated locations for XP_011542758.1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6

Conserved Domains (3) summary

cd09585
Location:379 → 447

SAM_DDHD2; SAM domain of DDHD2

pfam02825
Location:42 → 112

WWE; WWE domain

pfam02862
Location:498 → 699

DDHD; DDHD domain
XM_047421614.1 → XP_047277570.1 phospholipase DDHD2 isoform X1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6
XM_047421615.1 → XP_047277571.1 phospholipase DDHD2 isoform X2

UniProtKB/TrEMBL

B3KPM6
XM_047421616.1 → XP_047277572.1 phospholipase DDHD2 isoform X2

UniProtKB/TrEMBL

B3KPM6
XM_047421617.1 → XP_047277573.1 phospholipase DDHD2 isoform X2

UniProtKB/TrEMBL

B3KPM6

RNA

XR_007060723.1 RNA Sequence
XR_007060724.1 RNA Sequence
XR_001745504.3 RNA Sequence
XR_007060726.1 RNA Sequence
XR_007060725.1 RNA Sequence

Alternate T2T-CHM13v2.0

Genomic

NC_060932.1 Alternate T2T-CHM13v2.0

Range

38508534..38550602

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

XM_054360184.1 → XP_054216159.1 phospholipase DDHD2 isoform X1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6
XM_054360185.1 → XP_054216160.1 phospholipase DDHD2 isoform X1

UniProtKB/Swiss-Prot

B3KWV2, B3KXB5, O94830, Q9H8X7

UniProtKB/TrEMBL

B3KPM6
XM_054360186.1 → XP_054216161.1 phospholipase DDHD2 isoform X2

UniProtKB/TrEMBL

B3KPM6
XM_054360187.1 → XP_054216162.1 phospholipase DDHD2 isoform X2

UniProtKB/TrEMBL

B3KPM6
XM_054360188.1 → XP_054216163.1 phospholipase DDHD2 isoform X2

UniProtKB/TrEMBL

B3KPM6