Incidental Mutation 'R2144:H2-Aa'
ID 236687
Institutional Source Beutler Lab
Gene Symbol H2-Aa
Ensembl Gene ENSMUSG00000036594
Gene Name histocompatibility 2, class II antigen A, alpha
Synonyms Ia1, I-Aalpha, H-2Aa, A alpha, Aalpha, Ia-1
MMRRC Submission 040147-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R2144 (G1)
Quality Score 225
Status Not validated
Chromosome 17
Chromosomal Location 34501718-34506797 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 34502801 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Proline at position 122 (S122P)
Ref Sequence ENSEMBL: ENSMUSP00000046105 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000040655] [ENSMUST00000174751]
AlphaFold no structure available at present
PDB Structure CRYSTAL STRUCTURE OF CLASS II MHC MOLECULE IAb BOUND TO EALPHA3K PEPTIDE [X-RAY DIFFRACTION]
Crystal structure of murine class II MHC I-Ab in complex with a human CLIP peptide [X-RAY DIFFRACTION]
Crystal structure of mouse MHC class II I-Ab/3K peptide complexed with mouse TCR B3K506 [X-RAY DIFFRACTION]
Crystal structure of mouse MHC class II I-Ab/3K peptide complexed with mouse TCR YAe62 [X-RAY DIFFRACTION]
Crystal structure of mouse MHC class II I-Ab/3K peptide complexed with mouse TCR 2W20 [X-RAY DIFFRACTION]
Crystal Structure of 809.B5 TCR complexed with MHC Class II I-Ab/3k peptide [X-RAY DIFFRACTION]
J809.B5 TCR bound to IAb/3K [X-RAY DIFFRACTION]
J809.B5 Y31A TCR bound to IAb3K [X-RAY DIFFRACTION]
14.C6 TCR complexed with MHC class II I-Ab/3K peptide [X-RAY DIFFRACTION]
Predicted Effect probably damaging
Transcript: ENSMUST00000040655
AA Change: S122P

PolyPhen 2 Score 0.995 (Sensitivity: 0.68; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000046105
Gene: ENSMUSG00000036594
AA Change: S122P

DomainStartEndE-ValueType
MHC_II_alpha 31 111 1.83e-45 SMART
IGc1 129 200 2.51e-27 SMART
Pfam:C1-set_C 203 255 2.1e-30 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000165139
Predicted Effect noncoding transcript
Transcript: ENSMUST00000173944
Predicted Effect probably benign
Transcript: ENSMUST00000174751
AA Change: S39P

PolyPhen 2 Score 0.209 (Sensitivity: 0.92; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000133399
Gene: ENSMUSG00000036594
AA Change: S39P

DomainStartEndE-ValueType
signal peptide 1 23 N/A INTRINSIC
IGc1 46 117 2.51e-27 SMART
low complexity region 141 158 N/A INTRINSIC
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.4%
  • 20x: 95.1%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] HLA-DQA1 belongs to the HLA class II alpha chain paralogues. The class II molecule is a heterodimer consisting of an alpha (DQA) and a beta chain (DQB), both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B Lymphocytes, dendritic cells, macrophages). The alpha chain is approximately 33-35 kDa. It is encoded by 5 exons; exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, and exon 4 encodes the transmembrane domain and the cytoplasmic tail. Within the DQ molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to four different molecules. Typing for these polymorphisms is routinely done for bone marrow transplantation. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a knock-out allele lack cell surface expression of MHC class II molecules on macrophages and show decreased CD4-positive T cell number, increased CD8-positive T cell number, thymus hyperplasia, enlarged lymph nodes, and altered splenocyte response to staphylococcal enterotoxin B. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 117 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930553M12Rik T A 4: 88,786,412 (GRCm39) T69S unknown Het
4930553M12Rik G A 4: 88,786,411 (GRCm39) T69I unknown Het
Acsl6 A T 11: 54,232,604 (GRCm39) Q485L probably damaging Het
Adam5 C A 8: 25,305,496 (GRCm39) V81F probably benign Het
Aoc1l1 A G 6: 48,952,225 (GRCm39) H50R probably benign Het
Bag2 A G 1: 33,785,912 (GRCm39) S137P possibly damaging Het
Birc6 A T 17: 74,967,408 (GRCm39) Q4103L possibly damaging Het
Camta2 A G 11: 70,562,401 (GRCm39) F999L probably benign Het
Cap2 A T 13: 46,713,978 (GRCm39) probably null Het
Ccnk T A 12: 108,155,349 (GRCm39) L102Q probably null Het
Cd52 T C 4: 133,821,048 (GRCm39) probably benign Het
Cdc123 A T 2: 5,815,617 (GRCm39) I160K probably benign Het
Cep85l T C 10: 53,234,222 (GRCm39) N52S probably benign Het
Cntnap5a C T 1: 116,029,440 (GRCm39) T298I probably benign Het
Cpsf4 G T 5: 145,115,572 (GRCm39) S192I probably benign Het
Cpxm1 A G 2: 130,239,330 (GRCm39) S33P probably benign Het
Cyp2a12 A T 7: 26,734,194 (GRCm39) T376S possibly damaging Het
Cyp3a16 A G 5: 145,392,894 (GRCm39) F137S probably damaging Het
Des A G 1: 75,343,448 (GRCm39) T444A probably benign Het
Dgcr8 C T 16: 18,102,120 (GRCm39) G54D probably damaging Het
Dmac2l A G 12: 69,787,828 (GRCm39) Q88R probably damaging Het
Dsc3 A G 18: 20,113,743 (GRCm39) F393S possibly damaging Het
Dstyk T A 1: 132,391,113 (GRCm39) M838K probably damaging Het
Dvl1 G A 4: 155,932,273 (GRCm39) V28I possibly damaging Het
Eml5 A C 12: 98,776,864 (GRCm39) F1417C probably damaging Het
Ep400 A T 5: 110,851,384 (GRCm39) M1366K unknown Het
Epg5 G T 18: 77,997,412 (GRCm39) C425F possibly damaging Het
Epha3 C G 16: 63,593,680 (GRCm39) R136P possibly damaging Het
Extl1 C A 4: 134,098,355 (GRCm39) E225D probably benign Het
Fam186b A G 15: 99,178,538 (GRCm39) Y263H probably benign Het
Fbn2 A G 18: 58,186,065 (GRCm39) V1761A possibly damaging Het
Fer1l6 T A 15: 58,499,383 (GRCm39) M1251K probably benign Het
Gart A T 16: 91,426,969 (GRCm39) I555N probably damaging Het
Gm11596 A T 11: 99,683,789 (GRCm39) C110* probably null Het
Gnptab C T 10: 88,264,368 (GRCm39) S262L possibly damaging Het
Gpr21 T C 2: 37,408,243 (GRCm39) V263A probably benign Het
Gxylt1 T C 15: 93,152,361 (GRCm39) I224V probably benign Het
Hsph1 A C 5: 149,553,802 (GRCm39) probably null Het
Hunk G A 16: 90,229,420 (GRCm39) D94N probably damaging Het
Ikbke C A 1: 131,201,211 (GRCm39) V176L probably damaging Het
Inpp5k A T 11: 75,538,017 (GRCm39) probably null Het
Ints10 A G 8: 69,249,457 (GRCm39) T96A probably damaging Het
Kansl2 A T 15: 98,424,512 (GRCm39) V306E probably benign Het
Kif20a A G 18: 34,758,657 (GRCm39) D42G possibly damaging Het
Klhl7 A T 5: 24,305,861 (GRCm39) M37L probably benign Het
Krtap1-5 T C 11: 99,471,644 (GRCm39) I50V probably benign Het
Ktn1 A G 14: 47,952,109 (GRCm39) E983G probably damaging Het
Lrrk1 G A 7: 65,945,911 (GRCm39) S566L probably damaging Het
M6pr A G 6: 122,292,326 (GRCm39) M174V probably benign Het
Man2a2 A G 7: 80,013,264 (GRCm39) S510P probably damaging Het
Mmrn1 G A 6: 60,922,059 (GRCm39) S172N possibly damaging Het
Mpv17 A G 5: 31,311,533 (GRCm39) probably null Het
Mrgpra9 T C 7: 46,885,211 (GRCm39) E152G probably benign Het
Mst1r T C 9: 107,790,367 (GRCm39) V660A probably benign Het
Myof A G 19: 37,969,669 (GRCm39) probably null Het
Myrf G A 19: 10,206,038 (GRCm39) P126L probably benign Het
Nckap1l C T 15: 103,384,103 (GRCm39) A567V probably damaging Het
Nphs1 A G 7: 30,160,395 (GRCm39) E169G probably benign Het
Npy1r T A 8: 67,157,836 (GRCm39) V382D probably benign Het
Nrl A T 14: 55,758,307 (GRCm39) M140K possibly damaging Het
Odad2 C T 18: 7,127,229 (GRCm39) E995K probably damaging Het
Or14c39 T A 7: 86,344,488 (GRCm39) F275I probably damaging Het
Or2ag1b A T 7: 106,288,164 (GRCm39) M258K probably damaging Het
Or4f56 A G 2: 111,703,768 (GRCm39) I144T probably damaging Het
Or5ac17 C T 16: 59,036,389 (GRCm39) V196M probably benign Het
Or8d2 C T 9: 38,759,635 (GRCm39) T75I probably damaging Het
Orc5 T A 5: 22,752,925 (GRCm39) L36F possibly damaging Het
Osbpl1a A T 18: 13,004,230 (GRCm39) S396T probably benign Het
Pappa T A 4: 65,099,186 (GRCm39) Y568* probably null Het
Pask C T 1: 93,249,019 (GRCm39) A794T probably benign Het
Pclo C T 5: 14,908,766 (GRCm39) L5025F unknown Het
Pde3a T C 6: 141,435,837 (GRCm39) V924A probably benign Het
Pdpr A G 8: 111,844,668 (GRCm39) N355S probably damaging Het
Pepd A T 7: 34,620,843 (GRCm39) K36M probably benign Het
Pet100 T G 8: 3,672,355 (GRCm39) L14R probably damaging Het
Pfkfb2 T C 1: 130,626,460 (GRCm39) T438A probably benign Het
Pik3r6 T A 11: 68,434,437 (GRCm39) L546* probably null Het
Pira2 A T 7: 3,847,344 (GRCm39) L115Q probably damaging Het
Plxdc1 T C 11: 97,824,838 (GRCm39) Y339C probably damaging Het
Primpol A T 8: 47,039,378 (GRCm39) M414K probably damaging Het
Prol1 A T 5: 88,476,254 (GRCm39) T215S unknown Het
Prss22 A G 17: 24,213,656 (GRCm39) Y212H probably damaging Het
Ralgapa2 C A 2: 146,230,524 (GRCm39) V1014L probably damaging Het
Rap1gap2 G A 11: 74,316,802 (GRCm39) T245M probably damaging Het
Rbm26 T A 14: 105,352,638 (GRCm39) R1009* probably null Het
Rbm42 A G 7: 30,340,535 (GRCm39) *450Q probably null Het
Rere T C 4: 150,701,388 (GRCm39) V1256A probably damaging Het
Rmi1 G T 13: 58,555,797 (GRCm39) L15F probably damaging Het
Rnf213 T C 11: 119,334,516 (GRCm39) S3242P probably damaging Het
Rtel1 T A 2: 180,965,499 (GRCm39) V167E probably damaging Het
Scgb1b2 G T 7: 30,991,188 (GRCm39) probably benign Het
Sin3b T C 8: 73,457,893 (GRCm39) L203P probably damaging Het
Skint6 T C 4: 113,093,457 (GRCm39) S229G possibly damaging Het
Slco1a4 T C 6: 141,755,104 (GRCm39) Y566C probably damaging Het
Smgc T G 15: 91,728,624 (GRCm39) D121E possibly damaging Het
Sned1 T A 1: 93,199,406 (GRCm39) F495L probably damaging Het
St7 A T 6: 17,886,006 (GRCm39) N52I possibly damaging Het
Sycn C A 7: 28,240,494 (GRCm39) Q54K probably benign Het
Syngr4 A G 7: 45,536,464 (GRCm39) V186A probably benign Het
Tars3 G A 7: 65,305,539 (GRCm39) M254I possibly damaging Het
Tcaf2 A T 6: 42,619,738 (GRCm39) H96Q probably benign Het
Tcp11l2 T C 10: 84,449,363 (GRCm39) Y443H probably damaging Het
Tmem200c A T 17: 69,149,244 (GRCm39) Q609L possibly damaging Het
Tmx3 G A 18: 90,535,614 (GRCm39) G83R probably damaging Het
Tpgs2 A C 18: 25,301,598 (GRCm39) V23G possibly damaging Het
Trhr T C 15: 44,060,579 (GRCm39) V33A probably benign Het
Trim66 A T 7: 109,074,320 (GRCm39) I647N probably damaging Het
Trnt1 A G 6: 106,755,000 (GRCm39) K244E probably damaging Het
Tsfm G A 10: 126,864,314 (GRCm39) Q134* probably null Het
Ttll9 A G 2: 152,844,927 (GRCm39) T432A probably benign Het
Vmn2r78 C T 7: 86,603,690 (GRCm39) L623F probably damaging Het
Wdr55 A G 18: 36,895,419 (GRCm39) N132S possibly damaging Het
Wipf2 A T 11: 98,787,040 (GRCm39) R356S possibly damaging Het
Wnk1 A G 6: 119,925,949 (GRCm39) probably benign Het
Zfp260 A G 7: 29,804,765 (GRCm39) K222E probably damaging Het
Zfp300 A G X: 20,948,190 (GRCm39) S525P possibly damaging Het
Zfp592 A G 7: 80,687,950 (GRCm39) T959A probably benign Het
Other mutations in H2-Aa
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00089:H2-Aa APN 17 34,503,504 (GRCm39) missense probably damaging 1.00
citation UTSW 17 34,506,651 (GRCm39) splice site probably null
reference UTSW 17 34,502,794 (GRCm39) missense probably damaging 1.00
G1citation:H2-Aa UTSW 17 34,506,651 (GRCm39) splice site probably null
R1556:H2-Aa UTSW 17 34,503,390 (GRCm39) missense possibly damaging 0.94
R1901:H2-Aa UTSW 17 34,502,207 (GRCm39) missense possibly damaging 0.65
R4816:H2-Aa UTSW 17 34,502,794 (GRCm39) missense probably damaging 1.00
R5607:H2-Aa UTSW 17 34,502,816 (GRCm39) missense possibly damaging 0.89
R5608:H2-Aa UTSW 17 34,502,816 (GRCm39) missense possibly damaging 0.89
R6264:H2-Aa UTSW 17 34,502,172 (GRCm39) missense probably damaging 0.98
R6822:H2-Aa UTSW 17 34,506,651 (GRCm39) splice site probably null
R6917:H2-Aa UTSW 17 34,502,681 (GRCm39) missense probably damaging 1.00
R7052:H2-Aa UTSW 17 34,503,484 (GRCm39) missense possibly damaging 0.50
R7116:H2-Aa UTSW 17 34,502,601 (GRCm39) nonsense probably null
R8168:H2-Aa UTSW 17 34,506,695 (GRCm39) missense possibly damaging 0.83
R8257:H2-Aa UTSW 17 34,502,211 (GRCm39) missense probably damaging 0.97
R8264:H2-Aa UTSW 17 34,506,709 (GRCm39) missense probably benign 0.18
R8682:H2-Aa UTSW 17 34,502,734 (GRCm39) missense possibly damaging 0.75
R9667:H2-Aa UTSW 17 34,502,295 (GRCm39) missense probably benign
X0063:H2-Aa UTSW 17 34,506,785 (GRCm39) unclassified probably benign
Predicted Primers PCR Primer
(F):5'- CACCTTGCAGTCATAAATGTCATC -3'
(R):5'- TGGATGCAGTGCACATTAGC -3'

Sequencing Primer
(F):5'- GCAGTCATAAATGTCATCGTCAG -3'
(R):5'- GTGCACATTAGCTCCAAACAGAAGG -3'
Posted On 2014-10-01