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SPI-B SPI-B POU2F2 POU2F2 SPIB SPIB PRDM1 PRDM1 PAX5 PAX5 SIAH1 SIAH1 POU2AF1 POU2AF1 XBP1 XBP1 GTF2I GTF2I LGALS1 LGALS1 POU2F1 POU2F1
"POU2AF1" - POU class 2 associating factor 1 in Homo sapiens
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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protein of unknown 3D structure
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second shell of interactors
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Predicted Interactions
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protein homology
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POU2AF1POU class 2 associating factor 1; Transcriptional coactivator that specifically associates with either OCT1 or OCT2. It boosts the OCT1 mediated promoter activity and to a lesser extent, that of OCT2. It has no intrinsic DNA-binding activity. It recognizes the POU domains of OCT1 and OCT2. It is essential for the response of B-cells to antigens and required for the formation of germinal centers (256 aa)    
Predicted Functional Partners:
POU2F1
POU class 2 homeobox 1; Transcription factor that binds to the octamer motif (5’-ATTTGCAT-3’) and activates the promoters of the genes for some small nuclear RNAs (snRNA) and of genes such as those for histone H2B and immunoglobulins. Modulates transcription transactivation by NR3C1, AR and PGR (By similarity). In case of human herpes simplex virus (HSV) infection, POU2F1 forms a multiprotein-DNA complex with the viral transactivator protein VP16 and HCFC1 thereby enabling the transcription of the viral immediate early genes (766 aa)
        score_image   score_image   0.999
GTF2I
general transcription factor IIi (998 aa)
        score_image   score_image   0.934
PAX5
paired box 5 (391 aa)
            score_image   0.928
SPI-B
Spi-B transcription factor (Spi-1/PU.1 related), isoform CRA_a; Transcription factor Spi-B; cDNA FLJ57438, highly similar to Transcription factor Spi-B (397 aa)
      score_image     score_image   0.917
SPIB
Spi-B transcription factor (Spi-1/PU.1 related); Sequence specific transcriptional activator which binds to the PU-box, a purine-rich DNA sequence (5’-GAGGAA-3’) that can act as a lymphoid-specific enhancer. Promotes development of plasmacytoid dendritic cells (pDCs), also known as type 2 DC precursors (pre-DC2) or natural interferon (IFN)-producing cells. These cells have the capacity to produce large amounts of interferon and block viral replication. May be required for B-cell receptor (BCR) signaling, which is necessary for normal B-cell development and antigenic stimulation (262 aa)
      score_image     score_image   0.917
SIAH1
siah E3 ubiquitin protein ligase 1; E3 ubiquitin-protein ligase that mediates ubiquitination and subsequent proteasomal degradation of target proteins. E3 ubiquitin ligases accept ubiquitin from an E2 ubiquitin- conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Mediates E3 ubiquitin ligase activity either through direct binding to substrates or by functioning as the essential RING domain subunit of larger E3 complexes. Triggers the ubiquitin-mediated degradation of many substrates, including proteins involved in transcriptio [...] (313 aa)
        score_image   score_image   0.885
PRDM1
PR domain containing 1, with ZNF domain; Transcriptional repressor that binds specifically to the PRDI element in the promoter of the beta-interferon gene. Drives the maturation of B-lymphocytes into Ig secreting cells (825 aa)
            score_image   0.870
XBP1
X-box binding protein 1; Transcription factor essential for hepatocyte growth, the differentiation of plasma cells, the immunoglobulin secretion, and the unfolded protein response (UPR). Acts during endoplasmic reticulum stress (ER) by activating unfolded protein response (UPR) target genes via direct binding to the UPR element (UPRE). Binds DNA preferably to the CRE-like element 5’- GATGACGTG[TG]N(3)[AT]T-3’, and also to some TPA response elements (TRE). Binds to the HLA DR-alpha promoter. Binds to the Tax- responsive element (TRE) of HTLV-I (261 aa)
            score_image   0.856
LGALS1
lectin, galactoside-binding, soluble, 1; May regulate apoptosis, cell proliferation and cell differentiation. Binds beta-galactoside and a wide array of complex carbohydrates. Inhibits CD45 protein phosphatase activity and therefore the dephosphorylation of Lyn kinase (135 aa)
            score_image   0.835
POU2F2
POU class 2 homeobox 2; Transcription factor that specifically binds to the octamer motif (5’-ATTTGCAT-3’). Regulates transcription in a number of tissues in addition to activating immunoglobulin gene expression. Modulates transcription transactivation by NR3C1, AR and PGR. Isoform 5 activates the U2 small nuclear RNA (snRNA) promoter (479 aa)
        score_image   score_image   0.826
Your Current Organism:
Homo sapiens
NCBI taxonomy Id: 9606
Other names: H. sapiens, Homo, Homo sapiens, human, man
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