Mnx1 motor neuron and pancreas homeobox 1 [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Mnx1provided by MGI
Official Full Name: motor neuron and pancreas homeobox 1provided by MGI
Primary source: MGI:MGI:109160
See related: Ensembl:ENSMUSG00000001566 AllianceGenome:MGI:109160
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: HB9; MNR2; Hlxb9
Summary: Predicted to enable DNA-binding transcription repressor activity, RNA polymerase II-specific and sequence-specific double-stranded DNA binding activity. Involved in negative regulation of transcription by RNA polymerase II and spinal cord motor neuron cell fate specification. Acts upstream of or within several processes, including diaphragm development; endocrine pancreas development; and nervous system development. Located in chromatin and nucleus. Is expressed in several structures, including central nervous system; genitourinary system; gut; lung epithelium; and notochord. Human ortholog(s) of this gene implicated in Currarino syndrome. Orthologous to human MNX1 (motor neuron and pancreas homeobox 1). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Biased expression in duodenum adult (RPKM 2.3), colon adult (RPKM 2.0) and 5 other tissues See more
Orthologs: human all
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Genomic context

Location:: 5 B1; 5 15.04 cM

Exon count:: 3

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	5	NC_000071.7 (29678821..29683468, complement)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	5	NC_000071.6 (29473823..29478470, complement)

Chromosome 5 - NC_000071.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: Mouse ENCODE transcriptome data
Description: RNA profiling data sets generated by the Mouse ENCODE project.
BioProject: PRJNA66167
Publication: PMID 25409824
Analysis date: n/a

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Transcription Factor Hb9 Is Expressed in Glial Cell Lineages in the Developing Mouse Spinal Cord.
Title: Transcription Factor Hb9 Is Expressed in Glial Cell Lineages in the Developing Mouse Spinal Cord.
the novel findings of HB9-dependent premature senescence and myeloid-biased perturbed hematopoietic differentiation, for the first time shed light on the oncogenic properties of HB9 in translocation t(7;12) acute myeloid leukemia.
Title: The homeobox transcription factor HB9 induces senescence and blocks differentiation in hematopoietic stem and progenitor cells.
excitatory Hb9::Cre-derived interneurons constitute a distinct population of neurons that participates in the rhythm generating kernel for spinal locomotion.
Title: Spinal Hb9::Cre-derived excitatory interneurons contribute to rhythm generation in the mouse.
Inactivating Mnx1 in embryonic beta-cells (Mnx1(Deltabeta)) caused beta-to-delta-like cell transdifferentiation, which was delayed until postnatal stages; findings identify Mnx1 as an important factor in beta-cell differentiation and proliferation.
Title: Inactivating the permanent neonatal diabetes gene Mnx1 switches insulin-producing β-cells to a δ-like fate and reveals a facultative proliferative capacity in aged β-cells.
provide mechanistic insights into the role of phospho-HLXB9 as a pro-oncogenic factor by interacting with a survival factor and by promoting the oncogenic c-Met pathway
Title: Pro-oncogenic Roles of HLXB9 Protein in Insulinoma Cells through Interaction with Nono Protein and Down-regulation of the c-Met Inhibitor Cblb (Casitas B-lineage Lymphoma b).
NKX2-2 and MNX1 are etiological genes for neonatal diabetes.
Title: Analysis of transcription factors key for mouse pancreatic development establishes NKX2-2 and MNX1 mutations as causes of neonatal diabetes in man.
Both pHLXB9 and active GSK-3beta are elevated in beta cells with menin knockdown, in MEN1-associated beta cell tumors (insulinomas)
Title: GSK-3β protein phosphorylates and stabilizes HLXB9 protein in insulinoma cells to form a targetable mechanism of controlling insulinoma cell proliferation.
Hlxb9 expression is increased in mouse islet tumor.
Title: The embryonic transcription factor Hlxb9 is a menin interacting partner that controls pancreatic β-cell proliferation and the expression of insulin regulators.
we developed recombinant lentiviral vectors carrying motor neuron specific regulatory sequences derived from the promoter of homeobox gene Hb9
Title: Lentiviral vectors carrying enhancer elements of Hb9 promoter drive selective transgene expression in mouse spinal cord motor neurons.
Mnx1, a gene that is absolutely required in pancreas progenitors, is a major direct target of Ptf1a and is regulated by a distant enhancer element.
Title: RNA profiling and chromatin immunoprecipitation-sequencing reveal that PTF1a stabilizes pancreas progenitor identity via the control of MNX1/HLXB9 and a network of other transcription factors.

Submit: New GeneRIF Correction See all GeneRIFs (15)

Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Endonuclease-mediated (3)
Targeted (6) 1 citation

General gene information

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Markers

Mnx1 (e-PCR), detects polymorphism
- UniSTS:507433

Mnx1 (e-PCR), detects polymorphism
- UniSTS:515974

NoName (e-PCR)
- UniSTS:491424

Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables DNA binding	IEA Inferred from Electronic Annotation more info
enables DNA-binding transcription factor activity, RNA polymerase II-specific	IEA Inferred from Electronic Annotation more info
enables DNA-binding transcription repressor activity, RNA polymerase II-specific	ISO Inferred from Sequence Orthology more info
enables sequence-specific double-stranded DNA binding	IBA Inferred from Biological aspect of Ancestor more info
enables sequence-specific double-stranded DNA binding	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
acts_upstream_of_or_within cell morphogenesis involved in neuron differentiation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in central nervous system development	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within central nervous system neuron differentiation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within diaphragm development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within dorsal/ventral neural tube patterning	IDA Inferred from Direct Assay more info	PubMed
involved_in endocrine pancreas development	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within endocrine pancreas development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within motor neuron axon guidance	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in negative regulation of transcription by RNA polymerase II	IDA Inferred from Direct Assay more info	PubMed
involved_in negative regulation of transcription by RNA polymerase II	ISO Inferred from Sequence Orthology more info
acts_upstream_of_or_within nerve development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within neuron differentiation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within neuron migration	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in neuron projection morphogenesis	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within neuron projection morphogenesis	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within pancreas development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within post-embryonic development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within respiratory system development	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in spinal cord motor neuron cell fate specification	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within spinal cord motor neuron cell fate specification	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in spinal cord motor neuron cell fate specification	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in chromatin	IDA Inferred from Direct Assay more info	PubMed
located_in cytosol	ISO Inferred from Sequence Orthology more info
located_in nucleolus	ISO Inferred from Sequence Orthology more info
located_in nucleoplasm	ISO Inferred from Sequence Orthology more info
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: motor neuron and pancreas homeobox protein 1

Names: homeobox gene HB9; homeobox protein HB9

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.