IGHMBP2 Antibody – Rabbit Polyclonal

IGHMBP2: 5' to 3' helicase that unwinds RNA and DNA duplices in an ATP-dependent reaction. Acts as a transcription regulator. Required for the transcriptional activation of the flounder liver- type antifreeze protein gene. Exhibits strong binding specificity to the enhancer element B of the flounder antifreeze protein gene intron. Binds to the insulin II gene RIPE3B enhancer region. May be involved in translation. DNA-binding protein specific to 5'-phosphorylated single-stranded guanine-rich sequence related to the immunoglobulin mu chain switch region. Preferentially binds to the 5'-GGGCT-3' motif. Interacts with tRNA-Tyr. Stimulates the transcription of the human neurotropic virus JCV. Defects in IGHMBP2 are the cause of distal hereditary motor neuronopathy type 6 (HMN6); also known as spinal muscular atrophy distal autosomal recessive 1 (DSMA1) or spinal muscular atrophy with respiratory distress 1 (SMARD1). Distal hereditary motor neuronopathies constitute a heterogeneous group of neuromuscular disorders caused by selective degeneration of motor neurons in the anterior horn of the spinal cord, without sensory deficit in the posterior horn. The overall clinical picture consists of a classical distal muscular atrophy syndrome in the legs without clinical sensory loss. The disease starts with weakness and wasting of distal muscles of the anterior tibial and peroneal compartments of the legs. Later on, weakness and atrophy may expand to the proximal muscles of the lower limbs and/or to the distal upper limbs. The most prominent symptoms of HMN6 are severe respiratory distress resulting from diaphragmatic paralysis with eventration shown on chest x-ray and predominant involvement of the upper limbs and distal muscles. Belongs to the DNA2/NAM7 helicase family.

Protein type: DNA-binding; EC 3.6.4.12; EC 3.6.4.13; Helicase

Chromosomal Location of Human Ortholog: 11q13.3

Cellular Component: axon; cytoplasm; growth cone; membrane; nucleus; ribonucleoprotein complex; SMN complex

Molecular Function: ATP binding; ATP-dependent 5'-3' DNA helicase activity; ATP-dependent 5'-3' RNA helicase activity; DNA binding; DNA helicase activity; DNA-dependent ATPase activity; protein binding; ribosome binding; RNA binding; RNA-dependent ATPase activity; single-stranded DNA binding; transcription factor binding; tRNA binding

Biological Process: DNA recombination; DNA repair; DNA replication; protein homooligomerization

Disease: Charcot-marie-tooth Disease, Axonal, Type 2s; Spinal Muscular Atrophy, Distal, Autosomal Recessive, 1