Descriptions

Phosphocholine cytidylyltransferase (CCT) interconverts between an inactive soluble and active membrane-bound form in response to changes in membrane lipid composition. Activation involves disruption of an inhibitory interaction between the alphaE helices at the base of the active site and an autoinhibitory (AI) segment in the regulatory M domain and membrane insertion of the M domain as an amphipathic helix.

Autoinhibitory domains (AIDs)

Target domain

202-223 (alphaE helices within the catalytic domain)

Relief mechanism

Others

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for Q811Q9

Entry ID Method Resolution Chain Position Source
AF-Q811Q9-F1 Predicted AlphaFoldDB

24 variants for Q811Q9

Variant ID(s) Position Change Description Diseaes Association Provenance
rs3411126243 4 L>I No EVA
rs3389579040 68 R>C No EVA
rs3389515980 96 L>R No EVA
rs3389561854 101 T>A No EVA
rs3411335969 110 V>A No EVA
rs3389516000 136 L>P No EVA
rs3389567697 174 S>F No EVA
rs3410322443 189 G>D No EVA
rs3389561878 202 T>I No EVA
rs3389516039 212 D>N No EVA
rs3411016149 218 R>W No EVA
rs3389576627 268 E>D No EVA
rs3389525434 281 K>N No EVA
rs3389577491 298 A>T No EVA
rs3389564482 299 W>S No EVA
rs3389569820 337 T>I No EVA
rs3408679663 354 A>S No EVA
rs3409831804 356 A>P No EVA
rs3409831804 356 A>S No EVA
rs3409831834 360 S>C No EVA
rs3411284620 363 E>* No EVA
rs3389561879 363 E>G No EVA
rs3411506422 365 D>G No EVA
rs3389569762 369 K>* No EVA

No associated diseases with Q811Q9

2 regional properties for Q811Q9

Type Name Position InterPro Accession
domain Cytidyltransferase-like domain 78 - 208 IPR004821
domain CTP:phosphocholine cytidylyltransferase domain 75 - 224 IPR041723

Functions

Description
EC Number 2.7.7.15 Nucleotidyltransferases
Subcellular Localization
  • Endoplasmic reticulum
  • Cytoplasm
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

1 GO annotations of cellular component

Name Definition
endoplasmic reticulum The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).

2 GO annotations of molecular function

Name Definition
choline-phosphate cytidylyltransferase activity Catalysis of the reaction
phosphatidylcholine binding Binding to a phosphatidylcholine, a glycophospholipid in which a phosphatidyl group is esterified to the hydroxyl group of choline.

4 GO annotations of biological process

Name Definition
CDP-choline pathway The phosphatidylcholine biosynthetic process that begins with the phosphorylation of choline and ends with the combination of CDP-choline with diacylglycerol to form phosphatidylcholine.
ovarian follicle development The process whose specific outcome is the progression of the ovarian follicle over time, from its formation to the mature structure.
phosphatidylcholine biosynthetic process The chemical reactions and pathways resulting in the formation of phosphatidylcholines, any of a class of glycerophospholipids in which the phosphatidyl group is esterified to the hydroxyl group of choline.
spermatogenesis The developmental process by which male germ line stem cells self renew or give rise to successive cell types resulting in the development of a spermatozoa.

6 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P49585 PCYT1A Choline-phosphate cytidylyltransferase A Homo sapiens (Human) SS
Q9Y5K3 PCYT1B Choline-phosphate cytidylyltransferase B Homo sapiens (Human) PR
P49586 Pcyt1a Choline-phosphate cytidylyltransferase A Mus musculus (Mouse) SS
P19836 Pcyt1a Choline-phosphate cytidylyltransferase A Rattus norvegicus (Rat) EV
Q9QZC4 Pcyt1b Choline-phosphate cytidylyltransferase B Rattus norvegicus (Rat) PR
F4JJE0 CCT2 Choline-phosphate cytidylyltransferase 2 Arabidopsis thaliana (Mouse-ear cress) SS
10 20 30 40 50 60
MPVLTTDAES ETGIPKSLSN EPPSETMEEI EHTCPQPRLT LTAPAPFADE SSCQCQAPHE
70 80 90 100 110 120
KLTVAQARLG TPVDRPVRVY ADGIFDLFHS GHARALMQAK TLFPNSYLLV GVCSDDLTHK
130 140 150 160 170 180
FKGFTVMNEA ERYEALRHCR YVDEVIRDAP WTLTPEFLEK HKIDFVAHDD IPYSSAGSDD
190 200 210 220 230 240
VYKHIKEAGM FVPTQRTEGI STSDIITRIV RDYDVYARRN LQRGYTAKEL NVSFINEKKY
250 260 270 280 290 300
RFQNQVDKMK EKVKNVEERS KEFVNRVEEK SHDLIQKWEE KSREFIGNFL ELFGPDGAWK
310 320 330 340 350 360
QMFQERSSRM LQALSPKQSP VSSPTRSRSP SRSPSPTFSW LPNKTSPPSS PKAASASISS
MSEGDEDEK