A0A8M3B557 · A0A8M3B557_DANRE

Function

function

Catalyzes both phosphatidylcholine and phosphatidylethanolamine biosynthesis from CDP-choline and CDP-ethanolamine, respectively. Involved in protein-dependent process of phospholipid transport to distribute phosphatidyl choline to the lumenal surface. Has a higher cholinephosphotransferase activity than ethanolaminephosphotransferase activity.

Catalytic activity

  • 1,2-di-(9Z-hexadecenoyl)-sn-glycerol + CDP-choline = 1,2-di-(9Z-hexadecenoyl)-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1,2-di-(9Z-hexadecenoyl)-sn-glycerol + CDP-ethanolamine = 1,2-di-(9Z-hexadecenoyl)-sn-glycero-3-phosphoethanolamine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1,2-di-(9Z-octadecenoyl)-sn-glycerol + CDP-choline = 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1,2-di-(9Z-octadecenoyl)-sn-glycerol + CDP-ethanolamine = 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1,2-didecanoyl-sn-glycerol + CDP-choline = 1,2-didecanoyl-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1,2-dioctanoyl-sn-glycerol + CDP-choline = 1,2-dioctanoyl-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1-O-(1Z-alkenyl)-2-acyl-sn-glycerol + CDP-choline = 1-O-(1Z-alkenyl)-2-acyl-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
    EC:2.7.8.22 (UniProtKB | ENZYME | Rhea)
  • 1-O-alkyl-2-acyl-sn-glycerol + CDP-choline = 1-O-alkyl-2-acyl-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
    EC:2.7.8.2 (UniProtKB | ENZYME | Rhea)
  • 1-O-hexadecyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycerol + CDP-choline = 1-O-hexadecyl-2-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1-O-hexadecyl-2-acetyl-sn-glycerol + CDP-choline = 1-O-hexadecyl-2-acetyl-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycerol + CDP-choline = 1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycerol + CDP-choline = 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
  • 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycerol + CDP-ethanolamine = 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + CMP + H+
    This reaction proceeds in the forward direction.
  • a 1,2-diacyl-sn-glycerol + CDP-choline = a 1,2-diacyl-sn-glycero-3-phosphocholine + CMP + H+
    This reaction proceeds in the forward direction.
    EC:2.7.8.2 (UniProtKB | ENZYME | Rhea)
  • a 1,2-diacyl-sn-glycerol + CDP-ethanolamine = a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + CMP + H+
    This reaction proceeds in the forward direction.
    EC:2.7.8.1 (UniProtKB | ENZYME | Rhea)

Cofactor

Protein has several cofactor binding sites:
Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Mn2+ (UniProtKB | Rhea| CHEBI:29035 )

Pathway

Lipid metabolism.
Phospholipid metabolism; phosphatidylcholine biosynthesis; phosphatidylcholine from phosphocholine: step 2/2.
Phospholipid metabolism; phosphatidylethanolamine biosynthesis; phosphatidylethanolamine from ethanolamine: step 3/3.

GO annotations

AspectTerm
Cellular Componentendoplasmic reticulum membrane
Cellular ComponentGolgi apparatus
Cellular Componentnuclear membrane
Molecular Functiondiacylglycerol cholinephosphotransferase activity
Molecular Functionethanolaminephosphotransferase activity
Biological Processphosphatidylethanolamine biosynthetic process

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Choline/ethanolaminephosphotransferase 1
  • EC number
  • Alternative names
    • 1-alkenyl-2-acylglycerol choline phosphotransferase

Gene names

    • Name
      cept1b
    • Synonyms
      cept1
      , CH1073-272H17.1
      , zgc:171762

Organism names

  • Taxonomic identifier
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Neopterygii > Teleostei > Ostariophysi > Cypriniformes > Danionidae > Danioninae > Danio

Accessions

  • Primary accession
    A0A8M3B557

Proteomes

Organism-specific databases

Subcellular Location

Endoplasmic reticulum membrane
; Multi-pass membrane protein
Membrane
; Multi-pass membrane protein
Nucleus membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane82-104Helical
Transmembrane116-135Helical
Transmembrane181-198Helical
Transmembrane218-237Helical

Keywords

PTM/Processing

Keywords

Family & Domains

Sequence similarities

Belongs to the CDP-alcohol phosphatidyltransferase class-I family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    239
  • Mass (Da)
    26,806
  • Last updated
    2022-08-03 v1
  • Checksum
    C085E1405425A6A0
MSGLAVAHGRRGGARERGRGVDSSCWFAPGVLRRLFELPAPVLSRHQLKRLEEHRYSSSGRSLLEPIMQQYWEWLVNRMPPWIAPNLITIVGLVTNIFTTLVLVYYCPTATEQAPLWAYLLCAVGLFVYQSLDAIDGKQARRTNSSSPLGELFDHGCDSLSTVFVVLGTSIAVQLGTHPDWMFFCCFAGMFMFYCAHWQTYVSGTLRFGIFDVTESQICLALLQMFTAAVGPTIWNVTH

Computationally mapped potential isoform sequences

There are 2 potential isoforms mapped to this entry

View all
EntryEntry nameGene nameLength
A0A8M9PRW3A0A8M9PRW3_DANREcept1b415
A7MBY6A7MBY6_DANREcept1b415

Keywords

Sequence databases

Genome annotation databases

Similar Proteins

Disclaimer

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