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SPPL2B
HPA
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  • SPPL2B
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

SPPL2B
Synonyms IMP4, KIAA1532, PSL1
Gene descriptioni

Full gene name according to HGNC.

Signal peptide peptidase like 2B
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Enzymes
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 19
Cytoband p13.3
Chromosome location (bp) 2328615 - 2355095
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

5
Ensembl ENSG00000005206 (version 109)
Entrez gene 56928
HGNC HGNC:30627
UniProt Q8TCT7 (UniProt - Evidence at protein level)
neXtProt NX_Q8TCT7
GeneCards SPPL2B
Antibodypedia SPPL2B antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Intramembrane-cleaving aspartic protease (I-CLiP) that cleaves type II membrane signal peptides in the hydrophobic plane of the membrane. Functions in ITM2B and TNF processing 1, 2, 3, 4, 5. Catalyzes the intramembrane cleavage of the anchored fragment of shed TNF-alpha (TNF), which promotes the release of the intracellular domain (ICD) for signaling to the nucleus 6, 7. May play a role in the regulation of innate and adaptive immunity 8. Catalyzes the intramembrane cleavage of the simian foamy virus processed leader peptide gp18 of the envelope glycoprotein gp130 dependently of prior ectodomain shedding by furin or furin-like proprotein convertase (PC)-mediated cleavage proteolysis 9.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Hydrolase, Protease
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes a member of the GXGD family of aspartic proteases. The GXGD proteases are transmembrane proteins with two conserved catalytic motifs localized within the membrane-spanning regions. This enzyme localizes to endosomes, lysosomes, and the plasma membrane. It cleaves the transmembrane domain of tumor necrosis factor alpha to release the intracellular domain, which triggers cytokine expression in the innate and adaptive immunity pathways. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
SPPL2B-207
ENSP00000478510
ENST00000610743
Q8TCT7
[Direct mapping] Signal peptide peptidase-like 2B
Show all
Enzymes
   Peptidases
   Aspartic-type peptidases
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   9TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0000139 [Golgi membrane]
GO:0004190 [aspartic-type endopeptidase activity]
GO:0005515 [protein binding]
GO:0005654 [nucleoplasm]
GO:0005764 [lysosome]
GO:0005765 [lysosomal membrane]
GO:0005768 [endosome]
GO:0005794 [Golgi apparatus]
GO:0005813 [centrosome]
GO:0005886 [plasma membrane]
GO:0006508 [proteolysis]
GO:0006509 [membrane protein ectodomain proteolysis]
GO:0008233 [peptidase activity]
GO:0010008 [endosome membrane]
GO:0010803 [regulation of tumor necrosis factor-mediated signaling pathway]
GO:0015629 [actin cytoskeleton]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0016787 [hydrolase activity]
GO:0030660 [Golgi-associated vesicle membrane]
GO:0031090 [organelle membrane]
GO:0031293 [membrane protein intracellular domain proteolysis]
GO:0033619 [membrane protein proteolysis]
GO:0042500 [aspartic endopeptidase activity, intramembrane cleaving]
GO:0042803 [protein homodimerization activity]
GO:0050776 [regulation of immune response]
GO:0098553 [lumenal side of endoplasmic reticulum membrane]
GO:0098554 [cytoplasmic side of endoplasmic reticulum membrane]
Show all
511 aa
56.4 kDa
Yes 9
SPPL2B-208
ENSP00000477658
ENST00000612623
A0A087WT77
[Direct mapping] Signal peptide peptidase-like 2B
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0004190 [aspartic-type endopeptidase activity]
GO:0005654 [nucleoplasm]
GO:0005813 [centrosome]
GO:0005886 [plasma membrane]
GO:0015629 [actin cytoskeleton]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0031293 [membrane protein intracellular domain proteolysis]
GO:0042500 [aspartic endopeptidase activity, intramembrane cleaving]
Show all
165 aa
18.6 kDa
No 4
SPPL2B-209
ENSP00000478298
ENST00000613503
Q8TCT7
[Direct mapping] Signal peptide peptidase-like 2B
Show all
Enzymes
   Peptidases
   Aspartic-type peptidases
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   >9TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0000139 [Golgi membrane]
GO:0004190 [aspartic-type endopeptidase activity]
GO:0005515 [protein binding]
GO:0005654 [nucleoplasm]
GO:0005764 [lysosome]
GO:0005765 [lysosomal membrane]
GO:0005768 [endosome]
GO:0005794 [Golgi apparatus]
GO:0005813 [centrosome]
GO:0005886 [plasma membrane]
GO:0006508 [proteolysis]
GO:0006509 [membrane protein ectodomain proteolysis]
GO:0008233 [peptidase activity]
GO:0010008 [endosome membrane]
GO:0010803 [regulation of tumor necrosis factor-mediated signaling pathway]
GO:0015629 [actin cytoskeleton]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0016787 [hydrolase activity]
GO:0030660 [Golgi-associated vesicle membrane]
GO:0031090 [organelle membrane]
GO:0031293 [membrane protein intracellular domain proteolysis]
GO:0033619 [membrane protein proteolysis]
GO:0042500 [aspartic endopeptidase activity, intramembrane cleaving]
GO:0042803 [protein homodimerization activity]
GO:0050776 [regulation of immune response]
GO:0098553 [lumenal side of endoplasmic reticulum membrane]
GO:0098554 [cytoplasmic side of endoplasmic reticulum membrane]
Show all
592 aa
64.6 kDa
Yes >9
SPPL2B-211
ENSP00000482362
ENST00000614794
A0A087WZ50
[Direct mapping] Signal peptide peptidase-like 2B
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0004190 [aspartic-type endopeptidase activity]
GO:0005654 [nucleoplasm]
GO:0005813 [centrosome]
GO:0005886 [plasma membrane]
GO:0015629 [actin cytoskeleton]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0031293 [membrane protein intracellular domain proteolysis]
GO:0042500 [aspartic endopeptidase activity, intramembrane cleaving]
Show all
291 aa
32.5 kDa
No 4
SPPL2B-212
ENSP00000480813
ENST00000618220
Q8TCT7
[Direct mapping] Signal peptide peptidase-like 2B
Show all
Enzymes
   Peptidases
   Aspartic-type peptidases
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0000139 [Golgi membrane]
GO:0004190 [aspartic-type endopeptidase activity]
GO:0005515 [protein binding]
GO:0005654 [nucleoplasm]
GO:0005764 [lysosome]
GO:0005765 [lysosomal membrane]
GO:0005768 [endosome]
GO:0005794 [Golgi apparatus]
GO:0005813 [centrosome]
GO:0005886 [plasma membrane]
GO:0006508 [proteolysis]
GO:0006509 [membrane protein ectodomain proteolysis]
GO:0008233 [peptidase activity]
GO:0010008 [endosome membrane]
GO:0010803 [regulation of tumor necrosis factor-mediated signaling pathway]
GO:0015629 [actin cytoskeleton]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0016787 [hydrolase activity]
GO:0030660 [Golgi-associated vesicle membrane]
GO:0031090 [organelle membrane]
GO:0031293 [membrane protein intracellular domain proteolysis]
GO:0033619 [membrane protein proteolysis]
GO:0042500 [aspartic endopeptidase activity, intramembrane cleaving]
GO:0042803 [protein homodimerization activity]
GO:0050776 [regulation of immune response]
GO:0098553 [lumenal side of endoplasmic reticulum membrane]
GO:0098554 [cytoplasmic side of endoplasmic reticulum membrane]
Show all
319 aa
35.3 kDa
Yes 4

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