Detailed entry information

Protein Information (annotations from UniProt)

Database IDHIV0002188
UniProt IDP78356
Primary gene name(s)PIP4K2B
Synonym gene name(s)PIP5K2B
Protein namePhosphatidylinositol 5-phosphate 4-kinase type-2 beta
Protein functionParticipates in the biosynthesis of phosphatidylinositol 4,5-bisphosphate. {ECO:0000269|PubMed:9038203}.
Subcellular locationEndoplasmic reticulum membrane {ECO:0000250};
Peripheral membrane protein {ECO:0000250}. Cell membrane {ECO:0000250};
Peripheral membrane protein {ECO:0000250}. Nucleus {ECO:0000269|PubMed:20583997}. Cytoplasm {ECO:0000269|PubMed:20583997}. Note=Associated with the plasma membrane and the endoplasmic reticulum. {ECO:0000250}.
ECO codeClick here for more information.
Amino acid sequence
FASTA format: P78356
Gene Ontology
(Biological Process)
Complete annatation
cell surface receptor signaling pathway [GO:0007166];
phosphatidylinositol biosynthetic process [GO:0006661];
positive regulation of autophagosome assembly [GO:2000786];
regulation of autophagy [GO:0010506];
regulation of phosphatidylinositol 3-kinase signaling [GO:0014066]
Gene Ontology
(Molecular Function)
Complete annatation
1-phosphatidylinositol-3-phosphate 4-kinase activity [GO:0052811];
1-phosphatidylinositol-4-phosphate 5-kinase activity [GO:0016308];
1-phosphatidylinositol-5-phosphate 4-kinase activity [GO:0016309];
ATP binding [GO:0005524];
receptor signaling protein activity [GO:0005057]
Gene Ontology
(Cellular Component)
Complete annatation
autophagosome [GO:0005776];
cytosol [GO:0005829];
endoplasmic reticulum membrane [GO:0005789];
nucleoplasm [GO:0005654];
plasma membrane [GO:0005886]
Protein-protein interaction113985
Phylogenetic treeP78356
HIV replication factor status Zhou et al., Cell. Host. Microbe., 2008
Brass et al., Science, 2008
Smith et al., J. Immunol, 2010
gene status
Lu et al., J. Virol., 2011
      Folds changes 8h: unknown; Folds changes 16h: unknown; Tested: unknown;
Schoggins JW and Rice CM, Curr. Opin. Virol., 2011
      Targeted viruses: unknown
      Viral life cycle: unknown
      Mechanism related to antiviral activity: unknown
Anti-viral restriction factor Liu et al., Retrovirology, 2011
      unknown (Triplicates)

Gene Expression Profile       top

            Up-regulated;            Down-regulated

For brief introduction to each study, please go to the help page.

Gene expression during HIV latency

(1). Mohammadi et al., PLoS Pathog., 2014

Differentially expressed transcripts (Pairwise) during latency and subsequent viral reactivation using several agents - Primary CD4+ T-cell based model

DMSO: Dimethyl suloxyde (negative control) - 0.0033% final
SAHA: Vorinostat (Histone deacetylase inhibitor) - 0.5 μM
CD3: TCR Stimulation by IL-2+ antiCD3/anti-CD28 antibodies
IL7: Interleukin-7 based stimulation
DISU: Disulfiram (alcohol dehydrogenase inhibitor) - 0.5 μM
AZA: 5-azacytidine (AZA; DNA methylation inhibitor) - 1 μM
Experimental Condition Log2 Fold Change P value Adjusted P value
AZA vs. CD3-1.05263858620930.001454046103086190.00504149594334371
AZA vs. DISU-0.05954012259853390.8136823875802660.983626273983733
AZA vs. IL7-0.01299313790540250.9460257463540930.999311006273513
AZA vs. SAHA-0.29031937959970.2341952377200230.605636861666125
DISU vs. CD30.9810211252549660.007255403835047080.0221886706044836
DISU vs. IL70.03713177610071390.8826813437534640.977976596846029
DISU vs. SAHA-0.2287913114583160.4320277753825350.779581932574977
DMSO vs. AZA0.04112228352825570.8057103192372641
DMSO vs. CD31.082558519879230.0008056220510926910.00282972632308496
DMSO vs. DISU0.09896903204586240.6846496089832390.957734113745235
DMSO vs. IL7-0.0469019636955150.7938521407946890.957493337259042
DMSO vs. SAHA-0.337329834418080.152710228528460.471393194644879
HIV vs. Mock in Activation0.1701718130616290.7845563896418210.999983755607037
HIV vs. Mock in Latency0.0525415179331020.7499196363450380.999834320637052
IL7 vs. CD31.046042261141580.001258332975843770.00517508693321215
SAHA vs. CD30.7387649629108970.0373747899196660.0780324306025723
SAHA vs. IL7-0.2800936531436980.25021767807890.493882582082144
(2). Iglesias-Ussel et al., J. Virol., 2013

Up and Downregulated transcripts during Latency (Latently infected CD4+ T cells vs Uninfected)- Primary CD4+Tcell based model
Log2 Fold Change P Value
unknown unknown

Gene expression during HIV infection and replication

(1). Imbeault et al., PloS Pathog., 2012

Transcriptomic profiling of HIV-1 infected CD4+ T cells - Primary CD4+ T cells
Experiment type Log2 Fold Change P Value Adjusted P Value
Infected vs. Mock unknown unknown unknown
Infected vs. Bystander unknown unknown unknown
(2). Lefebvre et al., J. Virol., 2011

Transcriptome analysis of T-cell line (Sup T1)
Log2 Fold Change unknown
(3). Li et al., J. Immunol., 2013

Lymphatic tissue
Acute Fold Change Acute P Value Asymt Fold Change Asypt P Value AIDS Fold Change AIDS P Value
unknown unknown unknown unknown unknown unknown
(4). Chang et al., MBio., 2011

Transcriptome analysis of T-cell line (Sup T1)

Derived from Sherrill-Mix et al., BMC Retrovirol., 2015 cross validation
Up-regulated (True) FALSE
(5). Sherrill-Mix et al., BMC Retrovirol., 2015

Deep RNA-seq analysis of primary human T cell infected with low passage HIV isolate HIV89.6 - Primary CD4+ T cell based
Test Status Log2 Fold Change P Value
OK -0.303034 0.0178891
(6). Rotger et al., PLoS Pathog., 2010

Genome-wide mRNA expression of CD4+ T cells from HIV-infected patient
(Genes differentially expressed (at adjusted p<0.01) according to the empirical Bayes approach)
Log2 Fold Change P Value
unknown unknown

Proteomic/Transcriptomics studies indicating differentially expressed genes mediated by HIV

(1). Greenwood et al., Elife, 2016

Activated (CD3/CD28) Primary human CD4+ T cells infected with pNL4-3-dE-EGFP. The table shows the complete (unfiltered) TMT (tandem mass tag)-based proteomic time course dataset
6 h 24 h 48 h 72 h RTi
0.951 0.945 1.006 1.227 1.218
(2). Navare et al., Virology, 2012

SUP-T1 cell line
FC-4hpi P-value FC-8hpi P-value FC-20hpi P-value Category
unknown unknown unknown unknown unknown unknown unknown
(3). Hyrcza et al., J. Virolo., 2007

Primary human CD4+ and CD8+ T Cells
Affymetrix Prob ID Fold Change In CD8? Category
unknown unknown unknown unknown

Protein Overview       top

Drug-protein Interaction       (annotations from DrugBank)      top

not found

Protein Secondary Structure       (annotations from PDB)      top

PDB Accession Method Resolution Chain Structure Preview
1BO1 X-ray 3.0Å A/B=1-416.
3WZZ X-ray 2.6Å A/B=31-416.
3X01 X-ray 2.1Å A/B=31-416.
3X02 X-ray 2.4Å A/B=31-416.
3X03 X-ray 2.7Å A/B=31-416.
3X04 X-ray 2.6Å A/B=31-416.
3X05 X-ray 2.5Å A/B=31-416.
3X06 X-ray 2.6Å A/B=31-416.
3X07 X-ray 2.6Å A/B=31-416.
3X08 X-ray 2.7Å A/B=31-416.
3X09 X-ray 2.7Å A/B=31-416.
3X0A X-ray 2.6Å A/B=31-416.
3X0B X-ray 2.6Å A/B=31-416.
3X0C X-ray 2.5Å A/B=31-416.

HIV-1 Interaction       (annotations from NCBI HIV-1 Interaction Database)      top

not found

Metabolic/Signalling Pathway       (annotations from KEGG database)      top

Pathway Accession Number Description
hsa00562 Inositol phosphate metabolism - Homo sapiens (human)
hsa04070 Phosphatidylinositol signaling system - Homo sapiens (human)
hsa04810 Regulation of actin cytoskeleton - Homo sapiens (human)