Q3B7T6 (CNEP1_RAT) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
CTD nuclear envelope phosphatase 1
EC=3.1.3.16

Alternative name(s):
Serine/threonine-protein phosphatase dullard

Gene names

Name:	Ctdnep1
Synonyms:	Dullard

Organism

Rattus norvegicus (Rat) [Reference proteome]

Taxonomic identifier

10116 [NCBI]

Taxonomic lineage

cellular organisms › Eukaryota › Opisthokonta › Metazoa › Eumetazoa › Bilateria › Deuterostomia › Chordata › Craniata › Vertebrata › Gnathostomata › Teleostomi › Euteleostomi › Sarcopterygii › Tetrapoda › Amniota › Mammalia › Theria › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Rattus

Protein attributes

Sequence length	244 AA.
Sequence status	Complete.
Protein existence	Evidence at transcript level

General annotation (Comments)

Function	Serine/threonine protein phosphatase forming with CNEP1R1 an active phosphatase complex that dephosphorylates and may activate LPIN1 and LPIN2. LPIN1 and LPIN2 are phosphatidate phosphatases that catalyze the conversion of phosphatidic acid to diacylglycerol and control the metabolism of fatty acids at differents levels. May indirectly modulate the lipid composition of nuclear and/or endoplasmic reticulum membranes and be required for proper nuclear membrane morphology and/or dynamics. May also indirectly regulate the production of lipid droplets and triacylglycerol. May antagonize BMP signaling By similarity.
Catalytic activity	A phosphoprotein + H2O = a protein + phosphate.
Subunit structure	Interacts with CNEP1R1; the complex dephosphorylates LPIN1 and LPIN2 By similarity.
Subcellular location	Endoplasmic reticulum membrane; Single-pass membrane protein By similarity. Nucleus membrane; Single-pass membrane protein By similarity.
Sequence similarities	Belongs to the dullard family. Contains 1 FCP1 homology domain.

Ontologies

Keywords
Cellular component	Endoplasmic reticulum Membrane Nucleus
Domain	Transmembrane Transmembrane helix
Molecular function	Hydrolase Protein phosphatase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological_process	nuclear envelope organization Inferred from sequence or structural similarity. Source: UniProtKB positive regulation of triglyceride biosynthetic process Inferred from sequence or structural similarity. Source: UniProtKB protein dephosphorylation Inferred from sequence or structural similarity. Source: UniProtKB protein localization to nucleus Inferred from sequence or structural similarity. Source: UniProtKB
Cellular_component	Nem1-Spo7 phosphatase complex Inferred from sequence or structural similarity. Source: UniProtKB endoplasmic reticulum membrane Inferred from sequence or structural similarity. Source: UniProtKB integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW nuclear membrane Inferred from sequence or structural similarity. Source: UniProtKB
Molecular_function	protein serine/threonine phosphatase activity Inferred from sequence or structural similarity. Source: UniProtKB
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 244	244	CTD nuclear envelope phosphatase 1		PRO_0000297969
Regions
	Transmembrane	7 – 29	23	Helical; Potential
	Domain	57 – 224	168	FCP1 homology
Experimental info
	Sequence conflict	119	1	E → K in BU671232. Ref.1

Sequences

	Sequence		Length	Mass (Da)
	Q3B7T6 [UniParc]. Last modified August 21, 2007. Version 2. Checksum: 1AD25540018F50BA	FASTA	244	28,391
	10 20 30 40 50 60 MMRTQCLLGL RTFVAFAAKL WSFFIYLLRR QIRTVIQYQT VRYDILPLSP LSRNRLAQVK 70 80 90 100 110 120 RKILVLDLDE TLIHSHHDGV LRPTVRPGTP PDFILKVVID KHPVRFFVHK RPHVDFFLEV 130 140 150 160 170 180 VSQWYELVVF TASMEIYGSA VADKLDNSRS ILKRRYYRQH CTLELGSYIK DLSVVHSDLS 190 200 210 220 230 240 SIVILDNSPG AYRSHPDNAI PIKSWFSDPS DTALLNLLPM LDALRFTADV RSVLSRNLHQ HRLW

References

[1]	"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]. Tissue: Ovary, Placenta and Prostate.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	BU671232 mRNA. No translation available. BC087638 mRNA. Translation: AAH87638.1. BC107474 mRNA. Translation: AAI07475.1.
IPI	IPI00369570.
RefSeq	NP_001093964.1. NM_001100494.1.
UniGene	Rn.4211.
3D structure databases
ProteinModelPortal	Q3B7T6.
SMR	Q3B7T6. Positions 57-234.
ModBase	Search...
Protein-protein interaction databases
STRING	10116.ENSRNOP00000023379.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
Ensembl	ENSRNOT00000023379; ENSRNOP00000023379; ENSRNOG00000017352.
GeneID	287447.
KEGG	rno:287447.
UCSC	RGD:1310172. rat.
Organism-specific databases
CTD	23399.
RGD	1310172. Ctdnep1.
Phylogenomic databases
eggNOG	COG5190.
GeneTree	ENSGT00550000075053.
HOVERGEN	HBG098153.
InParanoid	Q3B7T6.
OrthoDB	EOG4J6RRP.
Gene expression databases
ArrayExpress	Q3B7T6.
Genevestigator	Q3B7T6.
Family and domain databases
Gene3D	3.40.50.1000. 1 hit.
InterPro	IPR011948. Dullard_phosphatase. IPR023214. HAD-like_dom. IPR004274. NIF. [Graphical view]
Pfam	PF03031. NIF. 1 hit. [Graphical view]
SMART	SM00577. CPDc. 1 hit. [Graphical view]
SUPFAM	SSF56784. HAD-like_dom. 1 hit.
TIGRFAMs	TIGR02251. HIF-SF_euk. 1 hit.
PROSITE	PS50969. FCP1. 1 hit. [Graphical view]
ProtoNet	Search...
Other
NextBio	626170.

Entry information

Entry name

CNEP1_RAT

Accession

Primary (citable) accession number: Q3B7T6
Secondary accession number(s): Q5M952

Entry history

Integrated into UniProtKB/Swiss-Prot:	August 21, 2007
Last sequence update:	August 21, 2007
Last modified:	May 1, 2013
This is version 49 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Chordata Protein Annotation Program