Detailed entry information

Protein Information (annotations from UniProt)

Database IDHIV0000109
UniProt IDQ92688
Primary gene name(s)ANP32B
Synonym gene name(s)APRIL, PHAPI2
Protein nameAcidic leucine-rich nuclear phosphoprotein 32 family member B
Protein functionMultifunctional protein working as a cell cycle progression factor as well as a cell survival factor. Required for the progression from the G1 to the S phase. Anti-apoptotic protein which functions as a caspase-3 inhibitor. Has no phosphatase 2A, PP2A inhibitor activity, By similarity. Exhibits histone chaperone properties, stimulating core histones to assemble into a nucleosome. {ECO:0000250, ECO:0000269|PubMed:20538007}.
Subcellular locationIsoform 1: Nucleus. Note=Accumulates in the nuclei at the S phase. {ECO:0000250}.;
SUBCELLULAR LOCATION: Isoform 2: Cytoplasm. Note=Lacks a nuclear localization signal.
ECO codeClick here for more information.
Amino acid sequence
FASTA format: Q92688
Gene Ontology
(Biological Process)
Complete annatation
activation of cysteine-type endopeptidase activity involved in apoptotic process [GO:0006919];
histone exchange [GO:0043486];
inner ear development [GO:0048839];
negative regulation of cell differentiation [GO:0045596];
nucleosome assembly [GO:0006334];
palate development [GO:0060021];
positive regulation of protein export from nucleus [GO:0046827];
vasculature development [GO:0001944];
ventricular system development [GO:0021591]
Gene Ontology
(Molecular Function)
Complete annatation
histone binding [GO:0042393];
RNA polymerase binding [GO:0070063]
Gene Ontology
(Cellular Component)
Complete annatation
cytoplasm [GO:0005737];
extracellular exosome [GO:0070062];
nucleus [GO:0005634]
Protein-protein interaction115795
Phylogenetic treeQ92688
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. CD31.108981513095740.0007979915225467820.00297853596528606
AZA vs. DISU-0.2203859986600330.3857106569570620.90058897815532
AZA vs. IL70.07106255590799910.711067228206520.999311006273513
AZA vs. SAHA-0.2031544349441810.4048364443157410.762622414598286
DISU vs. CD3-1.341086473340380.0002905004036714010.00143556925656384
DISU vs. IL70.282382355630710.2635406299746310.649364259434986
DISU vs. SAHA0.01777570032637070.9513558994532390.989441867353937
DMSO vs. AZA-0.2011324368500320.2288728758176691
DMSO vs. CD3-1.320090556512124.7456377139099e-050.000231180888163662
DMSO vs. DISU0.01772681100548250.9423741215638290.992551946845422
DMSO vs. IL70.2792103551464070.1200568728695990.611275767341979
DMSO vs. SAHA-0.009899869599523860.9664983643557260.992876268207915
HIV vs. Mock in Activation0.02257145967106950.9710725038085490.999983755607037
HIV vs. Mock in Latency0.01567153679884690.9241019576854790.999834320637052
IL7 vs. CD3-1.029485743156160.001487001771860010.00597854833482153
SAHA vs. CD3-1.337779775864250.0001948578480212020.000863171008136246
SAHA vs. IL7-0.2779548176394920.2532745469933070.496858474931952
(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 -0.129863 0.389899
(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
1.034 0.967 0.862 0.838 0.905
(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
2ELL NMR - A=1-161.
2RR6 NMR - A=1-161.

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

HIV Partner Interaction Type PubMed
Rev interacts with 22174317

Metabolic/Signalling Pathway       (annotations from KEGG database)      top

Pathway Accession Number Description
not found