CHPT1_RAT
ID CHPT1_RAT Reviewed; 398 AA.
AC Q66H21;
DT 29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT 11-OCT-2004, sequence version 1.
DT 03-AUG-2022, entry version 113.
DE RecName: Full=Cholinephosphotransferase 1 {ECO:0000305};
DE EC=2.7.8.2 {ECO:0000250|UniProtKB:Q8WUD6};
DE AltName: Full=Diacylglycerol cholinephosphotransferase 1;
GN Name=Chpt1 {ECO:0000312|RGD:1359283}; Synonyms=Cpt1;
OS Rattus norvegicus (Rat).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC Murinae; Rattus.
OX NCBI_TaxID=10116;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Testis;
RX PubMed=15489334; DOI=10.1101/gr.2596504;
RG The MGC Project Team;
RT "The status, quality, and expansion of the NIH full-length cDNA project:
RT the Mammalian Gene Collection (MGC).";
RL Genome Res. 14:2121-2127(2004).
CC -!- FUNCTION: Catalyzes phosphatidylcholine biosynthesis from CDP-choline.
CC It thereby plays a central role in the formation and maintenance of
CC vesicular membranes. {ECO:0000250|UniProtKB:Q8WUD6}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 1,2-diacyl-sn-glycerol + CDP-choline = a 1,2-diacyl-sn-
CC glycero-3-phosphocholine + CMP + H(+); Xref=Rhea:RHEA:32939,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17815, ChEBI:CHEBI:57643,
CC ChEBI:CHEBI:58779, ChEBI:CHEBI:60377; EC=2.7.8.2;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:32940;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycerol
CC + CDP-choline = 1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-
CC glycero-3-phosphocholine + CMP + H(+); Xref=Rhea:RHEA:54344,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:58779, ChEBI:CHEBI:60377,
CC ChEBI:CHEBI:74965, ChEBI:CHEBI:75728;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:54345;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycerol + CDP-choline =
CC 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + CMP
CC + H(+); Xref=Rhea:RHEA:54244, ChEBI:CHEBI:15378, ChEBI:CHEBI:58779,
CC ChEBI:CHEBI:60377, ChEBI:CHEBI:73001, ChEBI:CHEBI:75466;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:54245;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-
CC glycerol + CDP-choline = 1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-
CC docosahexaenoyl)-sn-glycero-3-phosphocholine + CMP + H(+);
CC Xref=Rhea:RHEA:54332, ChEBI:CHEBI:15378, ChEBI:CHEBI:58779,
CC ChEBI:CHEBI:60377, ChEBI:CHEBI:74963, ChEBI:CHEBI:82949;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:54333;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000250|UniProtKB:Q8WUD6};
CC -!- PATHWAY: Phospholipid metabolism; phosphatidylcholine biosynthesis;
CC phosphatidylcholine from phosphocholine: step 2/2.
CC {ECO:0000250|UniProtKB:Q8WUD6}.
CC -!- SUBCELLULAR LOCATION: Golgi apparatus membrane
CC {ECO:0000250|UniProtKB:Q8WUD6}; Multi-pass membrane protein
CC {ECO:0000250|UniProtKB:Q8WUD6}.
CC -!- SIMILARITY: Belongs to the CDP-alcohol phosphatidyltransferase class-I
CC family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; BC082074; AAH82074.1; -; mRNA.
DR RefSeq; NP_001007751.1; NM_001007750.1.
DR AlphaFoldDB; Q66H21; -.
DR STRING; 10116.ENSRNOP00000007305; -.
DR PaxDb; Q66H21; -.
DR Ensembl; ENSRNOT00000080939; ENSRNOP00000072444; ENSRNOG00000058271.
DR GeneID; 362866; -.
DR KEGG; rno:362866; -.
DR UCSC; RGD:1359283; rat.
DR CTD; 56994; -.
DR RGD; 1359283; Chpt1.
DR eggNOG; KOG2877; Eukaryota.
DR GeneTree; ENSGT00950000183117; -.
DR HOGENOM; CLU_035066_1_0_1; -.
DR InParanoid; Q66H21; -.
DR OMA; MTRSELY; -.
DR OrthoDB; 847100at2759; -.
DR PhylomeDB; Q66H21; -.
DR TreeFam; TF313270; -.
DR Reactome; R-RNO-1483191; Synthesis of PC.
DR UniPathway; UPA00753; UER00740.
DR PRO; PR:Q66H21; -.
DR Proteomes; UP000002494; Chromosome 7.
DR Bgee; ENSRNOG00000058271; Expressed in adult mammalian kidney and 18 other tissues.
DR Genevisible; Q66H21; RN.
DR GO; GO:0005789; C:endoplasmic reticulum membrane; IBA:GO_Central.
DR GO; GO:0005794; C:Golgi apparatus; ISO:RGD.
DR GO; GO:0000139; C:Golgi membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0004142; F:diacylglycerol cholinephosphotransferase activity; ISO:RGD.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0016780; F:phosphotransferase activity, for other substituted phosphate groups; ISO:RGD.
DR GO; GO:0006656; P:phosphatidylcholine biosynthetic process; ISO:RGD.
DR GO; GO:0006663; P:platelet activating factor biosynthetic process; ISO:RGD.
DR Gene3D; 1.20.120.1760; -; 1.
DR InterPro; IPR000462; CDP-OH_P_trans.
DR InterPro; IPR043130; CDP-OH_PTrfase_TM_dom.
DR InterPro; IPR014472; CHOPT.
DR PANTHER; PTHR10414; PTHR10414; 1.
DR Pfam; PF01066; CDP-OH_P_transf; 1.
DR PIRSF; PIRSF015665; CHOPT; 1.
DR PROSITE; PS00379; CDP_ALCOHOL_P_TRANSF; 1.
PE 2: Evidence at transcript level;
KW Acetylation; Golgi apparatus; Lipid biosynthesis; Lipid metabolism;
KW Magnesium; Manganese; Membrane; Metal-binding; Phospholipid biosynthesis;
KW Phospholipid metabolism; Reference proteome; Transferase; Transmembrane;
KW Transmembrane helix.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000250|UniProtKB:Q8WUD6"
FT CHAIN 2..398
FT /note="Cholinephosphotransferase 1"
FT /id="PRO_0000289254"
FT TRANSMEM 66..86
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 93..113
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 131..151
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 160..180
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 193..213
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 217..237
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 261..281
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 295..315
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 349..369
FT /note="Helical"
FT /evidence="ECO:0000255"
FT MOD_RES 2
FT /note="N-acetylalanine"
FT /evidence="ECO:0000250|UniProtKB:Q8WUD6"
SQ SEQUENCE 398 AA; 44601 MW; 9A6A12BD69E107D9 CRC64;
MAAGAGARPA PRWVKALGEP LSAAQLRRLE DHRYSAAGES LFEPPLQLFW TWLLQWIPLW
IAPNTITLFG LAINLFTTLV LIFYCPTVTE EAPYWTYLLC ALGLFIYQSL DAIDGKQARR
TNSCSPLGEL FDHGCDSLST VFMAIGASIA VRLGTHPDWL FFCSFVGMFM FYCAHWQTYV
SGVLRFGRVD VTEIQVALVI VFLLSTFGGA MMWDYTIPIL EIKLKILPVL GVVGGLIFSC
SNYFHVILHG GVGKNGSTIA GTSVLSPGLH IGLIIILAIM IYKKSATNVF EKHPCLYTLM
FGCVFAKVAQ KLVIAHMTKS ELYLQDTVFI GPGLLFLDQY FNNFIDEYVV LWIAMVITSF
DMMIYFSSLC LQISRHLHLS IFKTSYQQAP EQVHKHID
