Detailed entry information

Protein Information (annotations from UniProt)

Database IDHIV0002789
UniProt IDP09234
Primary gene name(s)SNRPC
Synonym gene name(s)unknown
Protein nameU1 small nuclear ribonucleoprotein C
Protein functionComponent of the spliceosomal U1 snRNP, which is essential for recognition of the pre-mRNA 5' splice-site and the subsequent assembly of the spliceosome. SNRPC/U1-C is directly involved in initial 5' splice-site recognition for both constitutive and regulated alternative splicing. The interaction with the 5' splice-site seems to precede base-pairing between the pre-mRNA and the U1 snRNA. Stimulates E complex formation by stabilizing the base pairing of the 5' end of the U1 snRNA and the 5' splice-site region. {ECO:0000269|PubMed:1826349, ECO:0000269|PubMed:2136774, ECO:0000269|PubMed:8798632}.
Subcellular locationNucleus.
ECO codeClick here for more information.
Amino acid sequence
FASTA format: P09234
Gene Ontology
(Biological Process)
Complete annatation
mRNA 5'-splice site recognition [GO:0000395];
mRNA splicing, via spliceosome [GO:0000398];
spliceosomal snRNP assembly [GO:0000387]
Gene Ontology
(Molecular Function)
Complete annatation
mRNA binding [GO:0003729];
poly(A RNA binding [GO:0044822];
pre-mRNA 5'-splice site binding [GO:0030627];
protein homodimerization activity [GO:0042803];
single-stranded RNA binding [GO:0003727];
zinc ion binding [GO:0008270]
Gene Ontology
(Cellular Component)
Complete annatation
Cajal body [GO:0015030];
commitment complex [GO:0000243];
nucleoplasm [GO:0005654];
prespliceosome [GO:0071010];
U1 snRNP [GO:0005685];
U2-type prespliceosome [GO:0071004]
Protein-protein interaction112515
Phylogenetic treeP09234
HIV replication factor status Zhou et al., Cell. Host. Microbe., 2008
      unknown
Brass et al., Science, 2008
      unknown
Smith et al., J. Immunol, 2010
      unknown
Interferon-stimulated
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. CD31.304452910861668.8294251899268e-050.000432068495008366
AZA vs. DISU-0.1595805765490980.5297091976231760.940949166421897
AZA vs. IL70.203760342261510.2921916897845260.999311006273513
AZA vs. SAHA-0.4242864543261060.08401344128662410.361730538118987
DISU vs. CD3-1.475742851873136.60155921493599e-050.000394575351332058
DISU vs. IL70.3538505984074350.1618435755285630.521177174865965
DISU vs. SAHA-0.2630239944852710.3685869168212310.740154225170834
DMSO vs. AZA-0.07709695127882040.6485717049127361
DMSO vs. CD3-1.393457490934221.87314472621658e-050.000101143101435315
DMSO vs. DISU0.08040345492055150.7426159985939850.969083241432604
DMSO vs. IL70.2882762947078780.1114013037740330.598707541673277
DMSO vs. SAHA-0.3529398239940750.1367461504093350.443374600333416
HIV vs. Mock in Activation-0.008557351312400960.9890264890164280.999983755607037
HIV vs. Mock in Latency-0.0387687322056070.8162095353545470.999834320637052
IL7 vs. CD3-1.093921628132530.0007575450100056890.00334362399291823
SAHA vs. CD3-1.752627382300851.41845474710411e-061.10987087429174e-05
SAHA vs. IL7-0.6305108652288110.01018550233229580.0632259419518598
(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 0.108328 0.496093
(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
1.02 0.877 0.893 0.835 0.895
(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
2VRD NMR - A=1-61.
3CW1 X-ray 5.4Å 0/9/L/l=1-77.
4PJO X-ray 3.3Å L/M/l/m=1-61.

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

HIV Partner Interaction Type PubMed
Rev interacts with 22174317
HIV-1 virus replication enhanced by expression of human gene 18854154

Metabolic/Signalling Pathway       (annotations from KEGG database)      top

Pathway Accession Number Description
hsa03040 Spliceosome - Homo sapiens (human)
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