Incidental Mutation 'R7056:B2m'
ID 547902
Institutional Source Beutler Lab
Gene Symbol B2m
Ensembl Gene ENSMUSG00000060802
Gene Name beta-2 microglobulin
Synonyms beta2-m, beta 2 microglobulin, Ly-m11
MMRRC Submission 045153-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R7056 (G1)
Quality Score 225.009
Status Validated
Chromosome 2
Chromosomal Location 121978168-121983563 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 121981465 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Proline at position 60 (L60P)
Ref Sequence ENSEMBL: ENSMUSP00000099534 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000028665] [ENSMUST00000102476]
AlphaFold P01887
PDB Structure THE CRYSTAL STRUCTURE OF H-2DD MHC CLASS I IN COMPLEX WITH THE HIV-1 DERIVED PEPTIDE P18-110 [X-RAY DIFFRACTION]
MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8 [X-RAY DIFFRACTION]
CRYSTAL STRUCTURE OF MURINE CLASS I MHC H2-DB COMPLEXED WITH A SYNTHETIC PEPTIDE P1027 [X-RAY DIFFRACTION]
CD1(MOUSE) ANTIGEN PRESENTING MOLECULE [X-RAY DIFFRACTION]
MHC CLASS I H-2DD HEAVY CHAIN COMPLEXED WITH BETA-2 MICROGLOBULIN AND AN IMMUNODOMINANT PEPTIDE P18-I10 FROM THE HUMAN IMMUNODEFICIENCY VIRUS ENVELOPE GLYCOPROTEIN 120 [X-RAY DIFFRACTION]
CRYSTAL STRUCTURE OF MURINE CLASS I H-2DB COMPLEXED WITH PEPTIDE GP33(C9M) [X-RAY DIFFRACTION]
CRYSTAL STRUCTURE OF MURINE CLASS I H-2DB COMPLEXED WITH SYNTHETIC PEPTIDE GP33 (C9M/K1A) [X-RAY DIFFRACTION]
CRYSTAL STRUCTURE OF MURINE CLASS I H-2DB COMPLEXED WITH PEPTIDE GP33 (C9M/K1S) [X-RAY DIFFRACTION]
CRYSTAL STRUCTURE OF THE LCMV PEPTIDIC EPITOPE GP33 IN COMPLEX WITH THE MURINE CLASS I MHC MOLECULE H-2DB [X-RAY DIFFRACTION]
MURINE ALLOREACTIVE SCFV TCR-PEPTIDE-MHC CLASS I MOLECULE COMPLEX [X-RAY DIFFRACTION]
>> 187 additional structures at PDB <<
Predicted Effect probably benign
Transcript: ENSMUST00000028665
SMART Domains Protein: ENSMUSP00000028665
Gene: ENSMUSG00000027233

DomainStartEndE-ValueType
low complexity region 33 41 N/A INTRINSIC
low complexity region 143 165 N/A INTRINSIC
low complexity region 215 227 N/A INTRINSIC
Pfam:PAT1 247 490 6.7e-12 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000102476
AA Change: L60P

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000099534
Gene: ENSMUSG00000060802
AA Change: L60P

DomainStartEndE-ValueType
low complexity region 4 16 N/A INTRINSIC
IGc1 40 110 5.51e-24 SMART
Meta Mutation Damage Score 0.9073 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.7%
  • 20x: 99.1%
Validation Efficiency 100% (62/62)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a serum protein found in association with the major histocompatibility complex (MHC) class I heavy chain on the surface of nearly all nucleated cells. The protein has a predominantly beta-pleated sheet structure that can form amyloid fibrils in some pathological conditions. The encoded antimicrobial protein displays antibacterial activity in amniotic fluid. A mutation in this gene has been shown to result in hypercatabolic hypoproteinemia.[provided by RefSeq, Aug 2014]
PHENOTYPE: Homozygotes lacking B2m appear normal, but have no detectable MHC class I antigen on their cells and are deficient in CD4- CD8+ T cells which mediate cytotoxic T cell function. Mutant mice are also subject to systemic iron loading. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 61 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Atr T A 9: 95,744,916 (GRCm39) S78T probably damaging Het
C1ra G A 6: 124,494,684 (GRCm39) E316K probably benign Het
Cep350 A C 1: 155,724,373 (GRCm39) I3075S probably damaging Het
Cep97 A G 16: 55,725,935 (GRCm39) S651P probably damaging Het
Chrna5 C T 9: 54,888,985 (GRCm39) probably benign Het
Cog5 T C 12: 31,715,468 (GRCm39) V80A possibly damaging Het
Col9a2 G A 4: 120,906,913 (GRCm39) probably null Het
Cop1 C T 1: 159,077,647 (GRCm39) L161F probably damaging Het
Cyp4f17 A T 17: 32,746,846 (GRCm39) M383L possibly damaging Het
Dennd4a A G 9: 64,814,205 (GRCm39) D1474G possibly damaging Het
Dgkb A C 12: 38,150,492 (GRCm39) S100R probably benign Het
Dnah17 A G 11: 118,016,212 (GRCm39) V309A probably benign Het
Dner C A 1: 84,558,457 (GRCm39) R169L possibly damaging Het
Dus1l T C 11: 120,682,120 (GRCm39) E362G probably benign Het
Eed A T 7: 89,619,564 (GRCm39) S168T possibly damaging Het
Eif3a T A 19: 60,751,500 (GRCm39) probably null Het
Fam234b A G 6: 135,205,450 (GRCm39) S472G probably benign Het
Fbn2 T A 18: 58,209,798 (GRCm39) T1028S probably benign Het
Fbxw16 A G 9: 109,265,352 (GRCm39) V393A possibly damaging Het
Fig4 A T 10: 41,096,928 (GRCm39) L838Q probably benign Het
Gm13941 T G 2: 110,927,147 (GRCm39) S137R unknown Het
Gm9938 T G 19: 23,701,981 (GRCm39) probably benign Het
Igsf10 T G 3: 59,238,501 (GRCm39) D560A probably damaging Het
Lrrk2 T A 15: 91,659,198 (GRCm39) L1870* probably null Het
Mep1b T A 18: 21,224,247 (GRCm39) Y347N probably damaging Het
Mepce T C 5: 137,780,968 (GRCm39) N613D probably damaging Het
Mgat3 T G 15: 80,096,097 (GRCm39) L308R probably damaging Het
Morc2a A G 11: 3,625,925 (GRCm39) Y175C probably damaging Het
Necab2 A G 8: 120,178,878 (GRCm39) N98S probably benign Het
Net1 T C 13: 3,934,845 (GRCm39) M394V probably benign Het
Nfat5 G A 8: 108,094,738 (GRCm39) G993D probably damaging Het
Obscn C A 11: 58,887,122 (GRCm39) probably benign Het
Olr1 T C 6: 129,465,904 (GRCm39) H34R probably damaging Het
Or2ab1 A G 11: 58,489,044 (GRCm39) Y274C probably damaging Het
Or4f60 T C 2: 111,902,662 (GRCm39) N89D probably benign Het
Pmm2 T A 16: 8,460,628 (GRCm39) F27L probably damaging Het
Ptpdc1 C A 13: 48,740,466 (GRCm39) V261F possibly damaging Het
Pyroxd1 G T 6: 142,304,808 (GRCm39) R345L probably benign Het
Radil A T 5: 142,480,109 (GRCm39) C670* probably null Het
Rasgrf2 C T 13: 92,167,203 (GRCm39) S290N probably damaging Het
Rbm33 T C 5: 28,599,001 (GRCm39) probably benign Het
Rnf111 A T 9: 70,360,957 (GRCm39) S501R possibly damaging Het
Sel1l2 T A 2: 140,087,334 (GRCm39) I446F probably benign Het
Sh3pxd2b T C 11: 32,372,737 (GRCm39) S635P probably benign Het
Slc30a2 G A 4: 134,074,726 (GRCm39) R161Q probably damaging Het
Smg1 T C 7: 117,745,623 (GRCm39) probably benign Het
Sorcs2 C A 5: 36,225,474 (GRCm39) D132Y probably damaging Het
Sox18 T C 2: 181,313,280 (GRCm39) D12G probably damaging Het
Srsf4 G T 4: 131,628,004 (GRCm39) probably benign Het
Susd4 C A 1: 182,660,721 (GRCm39) T81N probably benign Het
Tmem256 G T 11: 69,729,416 (GRCm39) probably benign Het
Tor4a T C 2: 25,084,853 (GRCm39) H350R probably benign Het
Ugt2a3 T A 5: 87,484,953 (GRCm39) S24C probably damaging Het
Vmn2r111 T C 17: 22,778,032 (GRCm39) N549S possibly damaging Het
Vmn2r77 C T 7: 86,451,023 (GRCm39) T303I probably benign Het
Wdr70 T A 15: 7,913,877 (GRCm39) I591F possibly damaging Het
Wdr93 T C 7: 79,399,088 (GRCm39) I74T probably damaging Het
Zfp292 A T 4: 34,809,784 (GRCm39) C1087S probably damaging Het
Zfp592 T A 7: 80,673,067 (GRCm39) D10E probably damaging Het
Zfp69 A G 4: 120,788,295 (GRCm39) V340A probably benign Het
Zswim2 C T 2: 83,751,092 (GRCm39) probably null Het
Other mutations in B2m
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL02904:B2m APN 2 121,981,642 (GRCm39) splice site probably benign
lactollin UTSW 2 121,981,396 (GRCm39) missense possibly damaging 0.87
ohno UTSW 2 121,981,465 (GRCm39) missense probably damaging 1.00
R4930:B2m UTSW 2 121,982,128 (GRCm39) missense possibly damaging 0.94
R5622:B2m UTSW 2 121,981,471 (GRCm39) missense probably damaging 1.00
R6191:B2m UTSW 2 121,981,396 (GRCm39) missense possibly damaging 0.87
R7444:B2m UTSW 2 121,981,416 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- GGGAAGCAGATCACTTATCCAG -3'
(R):5'- TACCCCAGTAGACGGTCTTG -3'

Sequencing Primer
(F):5'- AAGCAGATCACTTATCCAGAGTAG -3'
(R):5'- CAGTAGACGGTCTTGGGCTC -3'
Posted On 2019-05-13