ATP5F1D

protein-coding

ATP synthase F1 subunit delta, the group of Mitochondrial complex V: ATP synthase subunits

Gene summary

This gene encodes a subunit of mitochondrial ATP synthase. Mitochondrial ATP synthase catalyzes ATP synthesis, utilizing an electrochemical gradient of protons across the inner membrane during oxidative phosphorylation. ATP synthase is composed of two linked multi-subunit complexes: the soluble catalytic core, F1, and the membrane-spanning component, Fo, comprising the proton channel. The catalytic portion of mitochondrial ATP synthase consists of 5 different subunits (alpha, beta, gamma, delta, and epsilon) assembled with a stoichiometry of 3 alpha, 3 beta, and a single representative of the other 3. The proton channel consists of three main subunits (a, b, c). This gene encodes the delta subunit of the catalytic core. Alternatively spliced transcript variants encoding the same isoform have been identified. [provided by RefSeq, Jul 2008]

Previous symbols:
  • ATP5D

MANE transcript

NM_001687.5

Inheritance

AR

ClinVar variants

P:2U:86B:52

Top phenotype

mitochondrial complex V (ATP synthase) deficiency, nuclear type 5

gnomAD constraint

pLI —, LoF o/e 0.48

Max pathogenic AF

—

Genomic locus

chr19:1,241,746-1,244,825

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~3.1 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

mitochondrial proton-transporting ATP synthase complex deficiencySUPPORTIVE

Inheritance Pattern: AR

Disease ID:MONDO:0014471

Submitter: Orphanet

mitochondrial complex V (ATP synthase) deficiency, nuclear type 5STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0020858

Submitter: G2P

mitochondrial complex V (ATP synthase) deficiency, nuclear type 5STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0020858

Submitter: PanelApp Australia

mitochondrial complex V (ATP synthase) deficiency, nuclear type 5LIMITED

Inheritance Pattern: AR

Disease ID:MONDO:0020858

Submitter: Labcorp Genetics (formerly Invitae)

mitochondrial diseaseLIMITED

Inheritance Pattern: AR

Disease ID:MONDO:0044970

Submitter: ClinGen

The relationship between *ATP5F1D* and primary mitochondrial disease was evaluated using the ClinGen Clinical Validity Framework as of February 9, 2026. The *ATP5F1D* gene encodes the ATP synthase F(1) subunit delta, a subunit of oxidative phosphorylation complex V. The first and only report of the *ATP5F1D* gene in relation to autosomal recessive primary mitochondrial disease was in 2018 (PMID: 29478781). *ATP5F1D* has been associated with a single disease entity to date; mitochondrial complex V (ATP synthase) deficiency [OMIM# 618120]. This is one disease entity according to the ClinGen Lumping and Splitting Framework, and is considered a primary mitochondrial disease. Evidence supporting this gene-disease relationship includes case-level data and experimental data. This curation included two homozygous missense variants identified in two unrelated cases from one publication (PMID: 29478781). Clinical features in affected individuals include metabolic decompensation, dilated cardiomyopathy, myopathy, developmental delay, seizures, short stature, metabolic acidosis, and lactic acidosis. Complex V deficiency was noted in skin fibroblasts. The mechanism of disease appears to be loss of function. This gene-disease relationship is also supported by a biochemical function shared with other genes associated with primary mitochondrial disease (PMID: 33340416) and *Drosophila melanogaster* model (PMID: 29478781). In summary, there is limited evidence to support this gene-disease relationship. While more evidence is needed to establish this relationship definitively, no convincing evidence has emerged that contradicts the gene-disease relationship. This classification was approved by the NICHD/NINDS U24 ClinGen Mitochondrial Disease Gene Curation Expert Panel February 9, 2026 (SOP Version 11).

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to ATP5F1D variants in ClinVar

7 Conditions Cataloged
not providedTotal: 138
Inborn genetic diseasesTotal: 44
ATP5F1D-related disorderTotal: 12
Mitochondrial complex V (ATP synthase) deficiency, nuclear type 5Total: 5
not specifiedTotal: 2
Decreased activity of mitochondrial ATP synthase complexTotal: 1
Mitochondrial diseaseTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001687.5. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
42
clinvar
3
clinvar
46
missense
2
clinvar
79
clinvar
6
clinvar
1
clinvar
88
nonsense
4
clinvar
4
start loss
0
frameshift
2
clinvar
2
splice donor/acceptor (+/-2bp)
0
Total2086484140

Highest pathogenic variant AF is 0.0000021535418

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 17 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001687.5RefSeqNP_001678.14MANE Select
ENST00000215375.7EnsemblENSP00000215375.14MANE Select
NM_001001975.2RefSeqNP_001001975.14Standard
ENST00000395633.5EnsemblENSP00000378995.14Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Alzheimer,s disease - Homo sapiens (human)
  • Huntington,s disease - Homo sapiens (human)
  • Thermogenesis - Homo sapiens (human)
  • Doxorubicin Pathway (Cardiomyocyte Cell), Pharmacodynamics
  • Oxidative phosphorylation - Homo sapiens (human)

Biological Process

  • oxidative phosphorylation
  • ATP biosynthetic process
  • ATP synthesis coupled proton transport
  • cristae formation
  • mitochondrial ATP synthesis coupled proton transport

Molecular Function

  • transporter activity
  • ATP binding
  • ATPase activity
  • transmembrane transporter activity
  • ADP binding

Cellular Component

  • mitochondrial proton-transporting ATP synthase complex, catalytic core F(1)
  • mitochondrion
  • mitochondrial inner membrane
  • mitochondrial proton-transporting ATP synthase complex
  • mitochondrial matrix

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000215375
Coding exons
4
Length
3076
Individuals with no LoFs
124281
Homozygous LoFs
0
Heterozygous LoFs
2
Defined
124283
p
0.00000805
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.4208293.40.8780.000005861017
Missense (PolyPhen)2932.970.87958330
Synonymous0.4514549.00.9180.00000377375
Loss of Function0.97524.140.4831.76e-754

Population LoF Frequency

PopulationCAFp-valueStatus
African0.0000640.000063rare
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)0.00000900.0000089rare
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain. F-type ATPases consist of two structural domains, F(1) - containing the extramembraneous catalytic core, and F(0) - containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP turnover in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation. Part of the complex F(1) domain and of the central stalk which is part of the complex rotary element. Rotation of the central stalk against the surrounding alpha(3)beta(3) subunits leads to hydrolysis of ATP in three separate catalytic sites on the beta subunits.;

Recessive Scores

pRec
0.145

Intolerance Scores

RVIS EVS
-0.32
RVIS percentile EVS
31.46

Essentials

Essential (gene trap)
N
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