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Details on Person UniProt:Q8NEL9-3 DDHD1

Class:IdReferenceIsoform:146331
_chainChangeLogchain:1-900 added on Sat February 7 2015
_displayNameUniProt:Q8NEL9-3 DDHD1
_timestamp2025-02-21 19:58:08
chainchain:1-900
checksumD70DAD1A73AC22B8
commentFUNCTION Phospholipase A1 (PLA1) that hydrolyzes ester bonds at the sn-1 position of glycerophospholipids producing a free fatty acid and a lysophospholipid (Probable) (PubMed:20359546, PubMed:22922100). Prefers phosphatidate (1,2-diacyl-sn-glycero-3-phosphate, PA) as substrate in vitro, but can efficiently hydrolyze phosphatidylinositol (1,2-diacyl-sn-glycero-3-phospho-(1D-myo-inositol), PI), as well as a range of other glycerophospholipid substrates such as phosphatidylcholine (1,2-diacyl-sn-glycero-3-phosphocholine, PC), phosphatidylethanolamine (1,2-diacyl-sn-glycero-3-phosphoethanolamine, PE), phosphatidylserine (1,2-diacyl-sn-glycero-3-phospho-L-serine, PS) and phosphatidylglycerol (1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol), PG) (Probable) (PubMed:20359546). Involved in the regulation of the endogenous content of polyunsaturated PI and PS lipids in the nervous system. Changes in these lipids extend to downstream metabolic products like PI phosphates PIP and PIP2, which play fundamental roles in cell biology (By similarity). Regulates mitochondrial morphology (PubMed:24599962). These dynamic changes may be due to PA hydrolysis at the mitochondrial surface (PubMed:24599962). May play a regulatory role in spermatogenesis or sperm function (PubMed:24599962).CATALYTIC ACTIVITY a 1,2-diacyl-sn-glycero-3-phosphate + H2O = a 2-acyl-sn-glycerol 3-phosphate + a fatty acid + H(+)CATALYTIC ACTIVITY a 1,2-diacyl-sn-glycero-3-phospho-(1D-myo-inositol) + H2O = a 2-acyl-sn-glycero-3-phospho-D-myo-inositol + a fatty acid + H(+)CATALYTIC ACTIVITY 1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phospho-(1D-myo-inositol) + H2O = 2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phospho-(1D-myo-inositol) + octadecanoate + H(+)CATALYTIC ACTIVITY a 1-acyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phospho-(1D-myo-inositol) + H2O = 2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phospho-(1D-myo-inositol) + a fatty acid + H(+)CATALYTIC ACTIVITY 1,2-dihexadecanoyl-sn-glycero-3-phospho-(1D-myo-inositol) + H2O = 2-hexadecanoyl-sn-glycero-3-phospho-(1D-myo-inositol) + hexadecanoate + H(+)CATALYTIC ACTIVITY a 1-acyl-2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphate + H2O = 2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphate + a fatty acid + H(+)CATALYTIC ACTIVITY 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphate + H2O = 2-(9Z-octadecenoyl)-sn-glycero-3-phosphate + (9Z)-octadecenoate + H(+)CATALYTIC ACTIVITY 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphate + H2O = 2-(9Z-octadecenoyl)-sn-glycero-3-phosphate + hexadecanoate + H(+)CATALYTIC ACTIVITY 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phospho-L-serine + H2O = 2-(9Z-octadecenoyl)-sn-glycero-3-phospho-L-serine + hexadecanoate + H(+)CATALYTIC ACTIVITY 1,2-di-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphate + H2O = 2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphate + (5Z,8Z,11Z,14Z)-eicosatetraenoate + H(+)CATALYTIC ACTIVITY 1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphate + H2O = 2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphate + octadecanoate + H(+)CATALYTIC ACTIVITY a 1,2-diacyl-sn-glycero-3-phosphocholine + H2O = a 2-acyl-sn-glycero-3-phosphocholine + a fatty acid + H(+)CATALYTIC ACTIVITY a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + H2O = a 2-acyl-sn-glycero-3-phosphoethanolamine + a fatty acid + H(+)CATALYTIC ACTIVITY a 1,2-diacyl-sn-glycero-3-phospho-L-serine + H2O = a 2-acyl-sn-glycero-3-phospho-L-serine + a fatty acid + H(+)CATALYTIC ACTIVITY a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol) + H2O = 2-acyl-sn-glycero-3-phospho-(1'-sn-glycerol) + a fatty acid + H(+)CATALYTIC ACTIVITY 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phospho-(1'-sn-glycerol) + H2O = 2-(9Z-octadecenoyl)-sn-glycero-3-phospho-(1'-sn-glycerol) + hexadecanoate + H(+)CATALYTIC ACTIVITY 1-acyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + H2O = 2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholine + a fatty acid + H(+)CATALYTIC ACTIVITY 1-acyl-2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphoethanolamine + H2O = 2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphoethanolamine + a fatty acid + H(+)CATALYTIC ACTIVITY 1-(9Z-octadecenoyl)-2-(7Z,10Z,13Z,16Z,19Z-docosapentaenoyl)-sn-glycero-3-phospho-1D-myo-inositol + H2O = 2-(7Z,10Z,13Z,16Z,19Z-docosapentaenoyl)-sn-glycero-3-phospho-1D-myo-inositol + (9Z)-octadecenoate + H(+)CATALYTIC ACTIVITY 1-(9Z-octadecenoyl)-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phospho-1D-myo-inositol + H2O = 2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phospho-(1D-myo-inositol) + (9Z)-octadecenoate + H(+)CATALYTIC ACTIVITY 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phospho-1D-myo-inositol + H2O = 2-(9Z-octadecenoyl)-sn-glycero-3-phospho-1D-myo-inositol + (9Z)-octadecenoate + H(+)CATALYTIC ACTIVITY 1-(9Z-octadecenoyl)-2-(8Z,11Z,14Z-eicosatrienoyl)-sn-glycero-3-phospho-1D-myo-inositol + H2O = 2-(8Z,11Z,14Z-eicosatrienoyl)-sn-glycero-3-phospho-1D-myo-inositol + (9Z)-octadecenoate + H(+)CATALYTIC ACTIVITY 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + H2O = (9Z-octadecenoyl)-sn-glycero-3-phosphocholine + (9Z)-octadecenoate + H(+)ACTIVITY REGULATION Phosphatidate (1,2-diacyl-sn-glycero-3-phosphate, PA) can positively regulate phospholipase A1 activity.PATHWAY Phospholipid metabolism; phosphatidylinositol metabolism.SUBUNIT Forms homooligomers and, to a much smaller extent, heterooligomers with DDHD2 (PubMed:22922100).INTERACTION Highly expressed in testis. Also expressed in brain, spleen and lung. Only expressed in cerebellum in fetal brain.DISEASE The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the PA-PLA1 family.SEQUENCE CAUTION Extended N-terminus.SEQUENCE CAUTION Truncated N-terminus.
descriptionrecommendedName: fullName evidence="15"Phospholipase DDHD1 ecNumber evidence="3"3.1.1.111 ecNumber evidence="7"3.1.1.32 alternativeName: DDHD domain-containing protein 1 alternativeName: Phosphatidic acid-preferring phospholipase A1 homolog shortName evidence="15"PA-PLA1 ecNumber evidence="7 8 19"3.1.1.118 alternativeName: Phospholipid sn-1 acylhydrolase
geneNameDDHD1
KIAA1705
identifierQ8NEL9
isoformParent
isSequenceChangedFALSE
keywordAlternative splicing
Cytoplasm
Hereditary spastic paraplegia
Hydrolase
Lipid metabolism
Neurodegeneration
Phospholipid metabolism
Phosphoprotein
Proteomics identification
Reference proteome
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9862192] Weiser, Joel, 2024-02-26
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
nameDDHD1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8962409] ENSEMBL:ENSG00000100523 DDHD1 [Homo sapiens]
secondaryIdentifierDDHD1_HUMAN
G5E9D1
Q8WVH3
Q96LL2
Q9C0F8
sequenceLength900
species[Species:48887] Homo sapiens
variantIdentifierQ8NEL9-3
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No pathways have been reviewed or authored by UniProt:Q8NEL9-3 DDHD1 (146331)
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