This is a probable transcription activator that specifically binds the purine-rich single strand of the PUR element located upstream of the MYC gene. May play a role in the initiation of DNA replication and in recombination. Homo sapiens (taxid: 9606)
>sp|P42669|PURA_MOUSE Transcriptional activator protein Pur-alpha OS=Mus musculus GN=Pura PE=1 SV=1
This is a probable transcription activator that specifically binds the purine-rich single strand of the PUR element located upstream of the c-Myc gene. May play a role in the initiation of DNA replication and in recombination.
Mus musculus (taxid: 10090)
>sp|Q9UJV8|PURG_HUMAN Purine-rich element-binding protein gamma OS=Homo sapiens GN=PURG PE=2 SV=1
Has capacity to bind repeated elements in single-stranded DNA such as the purine-rich single strand of the PUR element located upstream of the MYC gene. Plays a role in the control of vascular smooth muscle (VSM) alpha-actin gene transcription as repressor in myoblasts and fibroblasts (By similarity). Participates in transcriptional and translational regulation of alpha-MHC expression in cardiac myocytes by binding to the purine-rich negative regulatory (PNR) element. Modulates constitutive liver galectin-3 gene transcription by binding to its promoter. May play a role in the dendritic transport of a subset of mRNAs.
Rattus norvegicus (taxid: 10116)
>sp|Q6PHK6|PURB_DANRE Transcriptional activator protein Pur-beta OS=Danio rerio GN=purb PE=2 SV=3
Has capacity to bind repeated elements in single-stranded DNA such as the purine-rich single strand of the PUR element located upstream of the MYC gene. Plays a role in the control of vascular smooth muscle (VSM) alpha-actin gene transcription as repressor in myoblasts and fibroblasts. Participates in transcriptional and translational regulation of alpha-MHC expression in cardiac myocytes by binding to the purine-rich negative regulatory (PNR) element. Modulates constitutive liver galectin-3 gene transcription by binding to its promoter. May play a role in the dendritic transport of a subset of mRNAs.
Homo sapiens (taxid: 9606)
Close Homologs in the Non-Redundant Database Detected by BLAST
>gi|427793839|gb|JAA62371.1| Putative transcriptional regulator of the pur family single-stranded-dna-binding protein, partial [Rhipicephalus pulchellus]
This family represents most of the length of the protein. Length = 218
>gnl|CDD|197840 smart00712, PUR, DNA/RNA-binding repeats in PUR-alpha/beta/gamma and in hypothetical proteins from spirochetes and the Bacteroides-Cytophaga-Flexibacter bacteria
DUF3276: Protein of unknown function (DUF3276); In
97.89
>PF04845 PurA: PurA ssDNA and RNA-binding protein; InterPro: IPR006628 The Pur protein family consists of four known members in humans and is strongly conserved throughout evolution
Pur-alpha is a highly conserved, sequence-specific DNA- and RNA-binding protein involved in diverse cellular and viral functions including transcription, replication, and cell growth. Pur-alpha has a modular structure with alternating three basic aromatic class I and two acidic leucine-rich class II repeats in the central region of the protein []. In addition to its involved in basic cellular function, Pur-alpha, has been implicated in the development of blood cells and cells of the central nervous system; it has also been implicated in the inhibition of oncogenic transformation and along with Pur-beta in myelodysplastic syndrome progressing to acute myelogenous leukemia. Pur-alpha can influence viral interaction through functional associations, for example with the Tat protein and TAR RNA of HIV-1, and with large T-antigen and DNA regulatory regions of JC virus. JC virus causes opportunistic infections in the brains of certain HIV-1-infected individuals [].; PDB: 3K44_A.
>smart00712 PUR DNA/RNA-binding repeats in PUR-alpha/beta/gamma and in hypothetical proteins from spirochetes and the Bacteroides-Cytophaga-Flexibacter bacteria
>PF04845 PurA: PurA ssDNA and RNA-binding protein; InterPro: IPR006628 The Pur protein family consists of four known members in humans and is strongly conserved throughout evolution
Pur-alpha is a highly conserved, sequence-specific DNA- and RNA-binding protein involved in diverse cellular and viral functions including transcription, replication, and cell growth. Pur-alpha has a modular structure with alternating three basic aromatic class I and two acidic leucine-rich class II repeats in the central region of the protein []. In addition to its involved in basic cellular function, Pur-alpha, has been implicated in the development of blood cells and cells of the central nervous system; it has also been implicated in the inhibition of oncogenic transformation and along with Pur-beta in myelodysplastic syndrome progressing to acute myelogenous leukemia. Pur-alpha can influence viral interaction through functional associations, for example with the Tat protein and TAR RNA of HIV-1, and with large T-antigen and DNA regulatory regions of JC virus. JC virus causes opportunistic infections in the brains of certain HIV-1-infected individuals [].; PDB: 3K44_A.
