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A7MCT6

- EKI2_MOUSE

UniProt

A7MCT6 - EKI2_MOUSE

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Protein

Ethanolamine kinase 2

Gene
Etnk2, Tuc1
Organism
Mus musculus (Mouse)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein leveli

Functioni

Highly specific for ethanolamine phosphorylation. Does not have choline kinase activity.1 Publication

Catalytic activityi

ATP + ethanolamine = ADP + O-phosphoethanolamine.1 Publication

Pathwayi

GO - Molecular functioni

  1. ATP binding Source: UniProtKB-KW
  2. ethanolamine kinase activity Source: UniProtKB

GO - Biological processi

  1. in utero embryonic development Source: MGI
  2. multicellular organism growth Source: MGI
  3. phosphatidylethanolamine biosynthetic process Source: MGI
  4. phosphorylation Source: UniProtKB
  5. placenta development Source: MGI
  6. post-embryonic development Source: MGI
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Transferase

Keywords - Biological processi

Lipid biosynthesis, Lipid metabolism, Phospholipid biosynthesis, Phospholipid metabolism

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

ReactomeiREACT_199009. Synthesis of PE.
UniPathwayiUPA00558; UER00741.

Names & Taxonomyi

Protein namesi
Recommended name:
Ethanolamine kinase 2 (EC:2.7.1.82)
Short name:
EKI 2
Alternative name(s):
Ethanolamine kinase-like protein
Gene namesi
Name:Etnk2
Synonyms:Tuc1
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMusMus
ProteomesiUP000000589: Chromosome 1

Organism-specific databases

MGIiMGI:2443760. Etnk2.

Pathology & Biotechi

Disruption phenotypei

No visible phenotype in adults. No significant effect is seen on liver phospholipid metabolism, neural development, or testicular function. No abnormalities are detected in embryonic and adult testis morphology, differentiation, function, or fertility. 1 Publication shows maternal-specific failure to support late embryonic development, resulting in reduced perinatal size and survival and suggesting compromised placental function.2 Publications

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 385385Ethanolamine kinase 2PRO_0000393962Add
BLAST

Proteomic databases

MaxQBiA7MCT6.
PaxDbiA7MCT6.
PRIDEiA7MCT6.

Expressioni

Tissue specificityi

Expressed in testis and liver. Low expression in ovary and kidney.3 Publications

Developmental stagei

The expression is restricted to the gonads during the sex determination period and throughout embryogenesis. In developing testis, the expression is found only in the Sertoli cells. The expression is strongest at day 11.5, more intense in the testis than the ovary. From 12.5 dpc the expression in the ovary is reduced and disappears. The expression at day 13.5 dpc is restricted to the testis cords.1 Publication

Gene expression databases

BgeeiA7MCT6.
GenevestigatoriA7MCT6.

Interactioni

Protein-protein interaction databases

STRINGi10090.ENSMUSP00000114272.

Structurei

3D structure databases

ProteinModelPortaliA7MCT6.
SMRiA7MCT6. Positions 78-380.

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0510.
GeneTreeiENSGT00530000062991.
HOGENOMiHOG000004856.
HOVERGENiHBG018981.
InParanoidiQ6XRG2.
KOiK00894.
OMAiQNQFSTI.
OrthoDBiEOG72NRQH.
PhylomeDBiA7MCT6.
TreeFamiTF313549.

Family and domain databases

InterProiIPR011009. Kinase-like_dom.
[Graphical view]
SUPFAMiSSF56112. SSF56112. 1 hit.

Sequences (2)i

Sequence statusi: Complete.

This entry describes 2 isoformsi produced by alternative splicing. Align

Isoform 1 (identifier: A7MCT6-1) [UniParc]FASTAAdd to Basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

MAVPPSAPVP CSPFYLRRQE PCPQCSWSME EKAVASAGCW EPPGPPRAAV    50
PCFSVTVEQD DILPGALRLI RELRPHWKPE QVRTKRFKDG ITNKLLACYV 100
EEDMRDCVLV RVYGERTELL VDRENEVRNF QLLRAHGCAP KLYCTFQNGL 150
CYEYVQGVAL GPEHIREPQL FRLIALEMAK IHTIHANGSL PKPTLWHKMH 200
RYFTLVKDEI SPSLSADVPK VEVLEQELAW LKEHLSQLDS PVVFCHNDLL 250
CKNIIYDSDK GRVCFIDYEY AGYNYQAFDI GNHFNEFAGV NVVDYSRYPA 300
RETQVQWLRY YLEAQKGTAA SPREVERLYA QVNKFALASH FFWALWALIQ 350
NQYSTISFDF LRYAVIRFNQ YFKVKPQVSA LEMPK 385
Length:385
Mass (Da):44,567
Last modified:October 2, 2007 - v1
Checksum:i46C062858F7FFD29
GO
Isoform 2 (identifier: A7MCT6-2) [UniParc]FASTAAdd to Basket

The sequence of this isoform differs from the canonical sequence as follows:
     290-385: VNVVDYSRYP...PQVSALEMPK → RGGLL

Show »
Length:294
Mass (Da):33,620
Checksum:i3076342DA02B10CF
GO

Alternative sequence

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Alternative sequencei290 – 38596VNVVD…LEMPK → RGGLL in isoform 2. VSP_039099Add
BLAST

Sequence conflict

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti166 – 1661R → Q in AAP47267. 1 Publication
Sequence conflicti292 – 2921V → E in AAP47267. 1 Publication
Sequence conflicti336 – 3361A → S in AAP47267. 1 Publication

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AC068906 Genomic DNA. No translation available.
BC145351 mRNA. Translation: AAI45352.1.
BC152310 mRNA. Translation: AAI52311.1.
AY212244 mRNA. Translation: AAP47267.1.
CCDSiCCDS15296.2. [A7MCT6-1]
RefSeqiNP_780652.2. NM_175443.5. [A7MCT6-1]
UniGeneiMm.52111.

Genome annotation databases

EnsembliENSMUST00000135222; ENSMUSP00000114272; ENSMUSG00000070644. [A7MCT6-1]
GeneIDi214253.
KEGGimmu:214253.
UCSCiuc007cqg.2. mouse. [A7MCT6-1]
uc011wsa.2. mouse. [A7MCT6-2]

Keywords - Coding sequence diversityi

Alternative splicing

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AC068906 Genomic DNA. No translation available.
BC145351 mRNA. Translation: AAI45352.1 .
BC152310 mRNA. Translation: AAI52311.1 .
AY212244 mRNA. Translation: AAP47267.1 .
CCDSi CCDS15296.2. [A7MCT6-1 ]
RefSeqi NP_780652.2. NM_175443.5. [A7MCT6-1 ]
UniGenei Mm.52111.

3D structure databases

ProteinModelPortali A7MCT6.
SMRi A7MCT6. Positions 78-380.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 10090.ENSMUSP00000114272.

Proteomic databases

MaxQBi A7MCT6.
PaxDbi A7MCT6.
PRIDEi A7MCT6.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

Ensembli ENSMUST00000135222 ; ENSMUSP00000114272 ; ENSMUSG00000070644 . [A7MCT6-1 ]
GeneIDi 214253.
KEGGi mmu:214253.
UCSCi uc007cqg.2. mouse. [A7MCT6-1 ]
uc011wsa.2. mouse. [A7MCT6-2 ]

Organism-specific databases

CTDi 55224.
MGIi MGI:2443760. Etnk2.

Phylogenomic databases

eggNOGi COG0510.
GeneTreei ENSGT00530000062991.
HOGENOMi HOG000004856.
HOVERGENi HBG018981.
InParanoidi Q6XRG2.
KOi K00894.
OMAi QNQFSTI.
OrthoDBi EOG72NRQH.
PhylomeDBi A7MCT6.
TreeFami TF313549.

Enzyme and pathway databases

UniPathwayi UPA00558 ; UER00741 .
Reactomei REACT_199009. Synthesis of PE.

Miscellaneous databases

NextBioi 374240.
PROi A7MCT6.
SOURCEi Search...

Gene expression databases

Bgeei A7MCT6.
Genevestigatori A7MCT6.

Family and domain databases

InterProi IPR011009. Kinase-like_dom.
[Graphical view ]
SUPFAMi SSF56112. SSF56112. 1 hit.
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: C57BL/6J.
  2. "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
    The MGC Project Team
    Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 11-385 (ISOFORM 2).
    Tissue: Brain.
  3. "Eki2 is upregulated specifically in the testis during mouse sex determination."
    Hurley T.M., McClive P.J., Sarraj M.A., Sinclair A.H.
    Gene Expr. Patterns 4:135-140(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 74-385 (ISOFORM 1), TISSUE SPECIFICITY, DEVELOPMENTAL STAGE.
    Strain: C3H X 101.
  4. "Placental thrombosis and spontaneous fetal death in mice deficient in ethanolamine kinase 2."
    Tian Y., Jackson P., Gunter C., Wang J., Rock C.O., Jackowski S.
    J. Biol. Chem. 281:28438-28449(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, TISSUE SPECIFICITY, CATALYTIC ACTIVITY, DISRUPTION PHENOTYPE.
  5. "Testis development, fertility, and survival in ethanolamine kinase 2-deficient mice."
    Gustin S.E., Western P.S., McClive P.J., Harley V.R., Koopman P.A., Sinclair A.H.
    Endocrinology 149:6176-6186(2008) [PubMed] [Europe PMC] [Abstract]
    Cited for: TISSUE SPECIFICITY, DISRUPTION PHENOTYPE.

Entry informationi

Entry nameiEKI2_MOUSE
AccessioniPrimary (citable) accession number: A7MCT6
Secondary accession number(s): B7ZNN6, D3Z771, Q6XRG2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 18, 2010
Last sequence update: October 2, 2007
Last modified: September 3, 2014
This is version 55 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Caution

According to 1 Publication, disruption of the gene causes increased prevalence of placental thrombosis, reduced litter size and increased pup mortality. No such effect was observed by 1 Publication. One possible explanation lies in the fact that 1 Publication observed a remarkable 100% survival of control pups and 16% mortality for mutant pups, while 1 Publication observed 16% mortality for both wild-type and mutant pups. According to 1 Publication, the construct used in 1 Publication may lead to expression of a truncated transcript that might have deleterious effects.

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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