Detailed entry information

Protein Information (annotations from UniProt)

Database IDHIV0002743
UniProt IDP02730
Primary gene name(s)SLC4A1
Synonym gene name(s)AE1, DI, EPB3
Protein nameBand 3 anion transport protein
Protein functionFunctions both as a transporter that mediates electroneutral anion exchange across the cell membrane and as a structural protein. Major integral membrane glycoprotein of the erythrocyte membrane; required for normal flexibility and stability of the erythrocyte membrane and for normal erythrocyte shape via the interactions of its cytoplasmic domain with cytoskeletal proteins, glycolytic enzymes, and hemoglobin. Functions as a transporter that mediates the 1:1 exchange of inorganic anions across the erythrocyte membrane. Mediates chloride-bicarbonate exchange in the kidney, and is required for normal acidification of the urine. {ECO:0000269|PubMed:10926824, ECO:0000269|PubMed:14734552, ECO:0000269|PubMed:1538405, ECO:0000269|PubMed:20151848, ECO:0000269|PubMed:24121512}.
Subcellular locationCell membrane {ECO:0000269|PubMed:10926824, ECO:0000269|PubMed:24121512, ECO:0000269|PubMed:26542571, ECO:0000269|PubMed:7506871};
Multi-pass membrane protein {ECO:0000269|PubMed:26542571}. Basolateral cell membrane {ECO:0000269|PubMed:7506871};
Multi-pass membrane protein {ECO:0000269|PubMed:7506871}. Note=Detected in the erythrocyte cell membrane and on the basolateral membrane of alpha-intercalated cells in the collecting duct in the kidney. {ECO:0000269|PubMed:7506871}.
ECO codeClick here for more information.
Amino acid sequence
FASTA format: P02730
Gene Ontology
(Biological Process)
Complete annatation
anion transport [GO:0006820];
bicarbonate transport [GO:0015701];
cellular ion homeostasis [GO:0006873];
chloride transmembrane transport [GO:1902476];
chloride transport [GO:0006821];
regulation of intracellular pH [GO:0051453]
Gene Ontology
(Molecular Function)
Complete annatation
anion:anion antiporter activity [GO:0015301];
anion transmembrane transporter activity [GO:0008509];
ankyrin binding [GO:0030506];
bicarbonate transmembrane transporter activity [GO:0015106];
chloride transmembrane transporter activity [GO:0015108];
inorganic anion exchanger activity [GO:0005452];
protein anchor [GO:0043495];
protein homodimerization activity [GO:0042803]
Gene Ontology
(Cellular Component)
Complete annatation
basolateral plasma membrane [GO:0016323];
blood microparticle [GO:0072562];
cortical cytoskeleton [GO:0030863];
extracellular exosome [GO:0070062];
integral component of membrane [GO:0016021];
integral component of plasma membrane [GO:0005887];
plasma membrane [GO:0005886];
Z disc [GO:0030018]
Protein-protein interaction112412
Phylogenetic treeP02730
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. CD3unknownunknownunknown
AZA vs. DISUunknownunknownunknown
AZA vs. IL7unknownunknownunknown
AZA vs. SAHAunknownunknownunknown
DISU vs. CD3unknownunknownunknown
DISU vs. IL7unknownunknownunknown
DISU vs. SAHAunknownunknownunknown
DMSO vs. AZAunknownunknownunknown
DMSO vs. CD3unknownunknownunknown
DMSO vs. DISUunknownunknownunknown
DMSO vs. IL7unknownunknownunknown
DMSO vs. SAHAunknownunknownunknown
HIV vs. Mock in Activationunknownunknownunknown
HIV vs. Mock in Latencyunknownunknownunknown
IL7 vs. CD3unknownunknownunknown
SAHA vs. CD3unknownunknownunknown
SAHA vs. IL7unknownunknownunknown
(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) TRUE
(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 0.283539 0.540853
(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
unknown unknown unknown unknown unknown
(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
1BH7 NMR - A=803-835.
1BNX NMR - A=389-430.
1BTQ NMR - A=405-424.
1BTR NMR - A=405-424.
1BTS NMR - A=436-456.
1BTT NMR - A=436-456.
1BZK NMR - A=389-430.
1HYN X-ray 2.6Å P/Q/R/S=1-379.
2BTA NMR - A=1-15.
2BTB NMR - A=1-15.
3BTB NMR - A=1-15.
4KY9 X-ray 2.2Å A/P=51-356.
4YZF X-ray 3.5Å A/B/C/D=1-911.

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

HIV Partner Interaction Type PubMed
HIV-1 virus replication enhanced by expression of human gene 19460752

Metabolic/Signalling Pathway       (annotations from KEGG database)      top

Pathway Accession Number Description
hsa04966 Collecting duct acid secretion - Homo sapiens (human)