Incidental Mutation 'B6584:Hormad1'
ID 632
Institutional Source Beutler Lab
Gene Symbol Hormad1
Ensembl Gene ENSMUSG00000028109
Gene Name HORMA domain containing 1
Synonyms 4921522K05Rik, Nohma
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # B6584 (G3) of strain supermodel
Quality Score
Status Validated
Chromosome 3
Chromosomal Location 95466988-95494982 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) T to A at 95478007 bp (GRCm39)
Zygosity Homozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000127180 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000029754] [ENSMUST00000090797] [ENSMUST00000107154] [ENSMUST00000171191]
AlphaFold Q9D5T7
Predicted Effect probably benign
Transcript: ENSMUST00000029754
SMART Domains Protein: ENSMUSP00000029754
Gene: ENSMUSG00000028109

DomainStartEndE-ValueType
Pfam:HORMA 24 221 4.7e-63 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000090797
SMART Domains Protein: ENSMUSP00000088303
Gene: ENSMUSG00000028109

DomainStartEndE-ValueType
Pfam:HORMA 23 221 5.4e-60 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000107154
SMART Domains Protein: ENSMUSP00000102772
Gene: ENSMUSG00000028109

DomainStartEndE-ValueType
Pfam:HORMA 23 221 5.4e-60 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000171191
SMART Domains Protein: ENSMUSP00000127180
Gene: ENSMUSG00000028109

DomainStartEndE-ValueType
Pfam:HORMA 23 221 5.4e-60 PFAM
Coding Region Coverage
  • 1x: 85.5%
  • 3x: 70.0%
Het Detection Efficiency 43.9%
Validation Efficiency 89% (133/150)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a HORMA domain-containing protein. HORMA domains are involved in chromatin binding and play a role in cell cycle regulation. The encoded protein may play a role in meiosis, and expression of this gene is a potential marker for cancer. A pseudogene of this gene is located on the long arm of chromosome 6. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]
PHENOTYPE: Homozgous mice are infertile because of meiosis arrest associated with impaired synaptonemal-complex formation. [provided by MGI curators]
Allele List at MGI

All alleles(9) : Targeted, knock-out(1) Targeted, other(1) Gene trapped(7)

Other mutations in this stock
Total: 12 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700102H20Rik C T 17: 3,609,853 (GRCm39) probably benign Homo
Acadl T A 1: 66,887,632 (GRCm39) probably benign Het
Astn2 C T 4: 65,910,624 (GRCm39) V403M probably damaging Het
Clcc1 C T 3: 108,580,229 (GRCm39) T302I probably damaging Homo
Resf1 C T 6: 149,230,844 (GRCm39) H1297Y probably damaging Het
Rnf213 C T 11: 119,316,895 (GRCm39) T1007I probably damaging Het
Rrh T C 3: 129,605,391 (GRCm39) N239D probably damaging Homo
Samd4 A C 14: 47,253,794 (GRCm39) H86P probably damaging Homo
Slc27a2 T C 2: 126,403,562 (GRCm39) L195P possibly damaging Het
Srek1ip1 T C 13: 104,953,882 (GRCm39) probably benign Het
Tars2 T C 3: 95,649,462 (GRCm39) probably null Homo
Zfp37 A T 4: 62,109,615 (GRCm39) V521E probably damaging Het
Other mutations in Hormad1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01653:Hormad1 APN 3 95,485,608 (GRCm39) missense possibly damaging 0.49
IGL01686:Hormad1 APN 3 95,485,580 (GRCm39) missense probably benign 0.02
IGL02023:Hormad1 APN 3 95,485,604 (GRCm39) missense possibly damaging 0.91
R0025:Hormad1 UTSW 3 95,492,436 (GRCm39) unclassified probably benign
R0662:Hormad1 UTSW 3 95,482,910 (GRCm39) missense probably benign 0.01
R0704:Hormad1 UTSW 3 95,473,997 (GRCm39) critical splice donor site probably null
R1854:Hormad1 UTSW 3 95,487,317 (GRCm39) missense probably benign 0.08
R2199:Hormad1 UTSW 3 95,475,033 (GRCm39) critical splice donor site probably null
R2371:Hormad1 UTSW 3 95,482,910 (GRCm39) missense probably benign 0.18
R2411:Hormad1 UTSW 3 95,487,326 (GRCm39) missense probably benign 0.41
R3522:Hormad1 UTSW 3 95,483,596 (GRCm39) missense probably benign 0.01
R4075:Hormad1 UTSW 3 95,485,514 (GRCm39) missense possibly damaging 0.47
R4202:Hormad1 UTSW 3 95,492,509 (GRCm39) missense probably benign 0.00
R4535:Hormad1 UTSW 3 95,492,452 (GRCm39) missense probably benign 0.00
R4536:Hormad1 UTSW 3 95,492,452 (GRCm39) missense probably benign 0.00
R4844:Hormad1 UTSW 3 95,478,242 (GRCm39) missense probably damaging 0.98
R4903:Hormad1 UTSW 3 95,492,531 (GRCm39) splice site probably null
R4964:Hormad1 UTSW 3 95,492,531 (GRCm39) splice site probably null
R5135:Hormad1 UTSW 3 95,492,531 (GRCm39) unclassified probably benign
R5208:Hormad1 UTSW 3 95,485,418 (GRCm39) missense possibly damaging 0.46
R5372:Hormad1 UTSW 3 95,483,735 (GRCm39) missense probably damaging 1.00
R5825:Hormad1 UTSW 3 95,469,870 (GRCm39) missense probably damaging 0.97
R5895:Hormad1 UTSW 3 95,467,044 (GRCm39) critical splice donor site probably null
R6124:Hormad1 UTSW 3 95,483,613 (GRCm39) missense probably benign
R6453:Hormad1 UTSW 3 95,485,568 (GRCm39) missense probably benign 0.02
R7308:Hormad1 UTSW 3 95,469,866 (GRCm39) missense probably damaging 0.99
R7373:Hormad1 UTSW 3 95,483,628 (GRCm39) missense probably damaging 1.00
R8744:Hormad1 UTSW 3 95,469,926 (GRCm39) missense possibly damaging 0.79
R9040:Hormad1 UTSW 3 95,487,470 (GRCm39) missense possibly damaging 0.68
R9360:Hormad1 UTSW 3 95,483,622 (GRCm39) missense probably benign 0.03
R9790:Hormad1 UTSW 3 95,494,693 (GRCm39) missense probably benign 0.13
R9791:Hormad1 UTSW 3 95,494,693 (GRCm39) missense probably benign 0.13
X0025:Hormad1 UTSW 3 95,488,878 (GRCm39) missense probably damaging 1.00
Nature of Mutation

DNA sequencing using the SOLiD technique identified a T to A transversion at base pair 95374618 in the Genbank genomic region NC_000069 for the Hormad1 gene on chromosome 3 (GTAAGTACTT ->GTAAGTACTA). Two  transcripts of the Hormad1 gene are displayed on Ensembl and Vega. The mutation is located within intron 5 from the ATG exon, ten nucleotides from the previous exon. The Hormad1 gene contains 16 total exons using Genbank record NM_026489.2. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).

Protein Function and Prediction

The Hormad1 gene encodes a 392 amino acid protein that monitors and regulates pairing, synapsis, or recombination between homologous chromosomes during meiosis.  The 392 amino acid isoform 1 is localized to unsynapsed or desynapsed chromosomal regions during the prophase I stage of meiosis. Isoform 2 has 372 amino acids with an alternative C-terminus and is localized to the cytoplasm (Uniprot Q9D5T7). Homozgous mice are infertile because of meiosis arrest.

Posted On 2011-04-12