Incidental Mutation 'R9450:Lamb2'
ID 714199
Institutional Source Beutler Lab
Gene Symbol Lamb2
Ensembl Gene ENSMUSG00000052911
Gene Name laminin, beta 2
Synonyms Lams, npht, Lamb-2
MMRRC Submission
Accession Numbers
Essential gene? Probably essential (E-score: 0.854) question?
Stock # R9450 (G1)
Quality Score 225.009
Status Not validated
Chromosome 9
Chromosomal Location 108357080-108367729 bp(+) (GRCm39)
Type of Mutation nonsense
DNA Base Change (assembly) T to A at 108357760 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Cysteine to Stop codon at position 94 (C94*)
Ref Sequence ENSEMBL: ENSMUSP00000069087 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000065014] [ENSMUST00000194147] [ENSMUST00000195058] [ENSMUST00000195483]
AlphaFold Q61292
Predicted Effect probably null
Transcript: ENSMUST00000065014
AA Change: C94*
SMART Domains Protein: ENSMUSP00000069087
Gene: ENSMUSG00000052911
AA Change: C94*

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
LamNT 44 284 1.9e-102 SMART
EGF_Lam 286 347 1.34e-6 SMART
EGF_Lam 350 410 6.1e-10 SMART
EGF_Lam 413 470 2.98e-13 SMART
EGF_Lam 473 522 7.93e-9 SMART
EGF_Lam 525 569 1.01e-10 SMART
EGF_Lam 784 829 3.42e-13 SMART
EGF_Lam 832 875 6.54e-10 SMART
EGF_Lam 878 925 1.34e-6 SMART
EGF_Lam 928 984 4.74e-7 SMART
EGF_Lam 987 1036 1.53e-10 SMART
EGF_Lam 1039 1093 6.29e-12 SMART
EGF_Lam 1096 1141 1.79e-7 SMART
EGF_Lam 1144 1188 6.64e-11 SMART
coiled coil region 1261 1299 N/A INTRINSIC
low complexity region 1445 1458 N/A INTRINSIC
coiled coil region 1473 1527 N/A INTRINSIC
low complexity region 1609 1625 N/A INTRINSIC
SCOP:d1eq1a_ 1632 1786 5e-17 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000194147
SMART Domains Protein: ENSMUSP00000141562
Gene: ENSMUSG00000052911

DomainStartEndE-ValueType
low complexity region 59 79 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000195058
AA Change: C94*
SMART Domains Protein: ENSMUSP00000141757
Gene: ENSMUSG00000052911
AA Change: C94*

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
Pfam:Laminin_N 50 102 6.2e-16 PFAM
Predicted Effect probably null
Transcript: ENSMUST00000195483
AA Change: C94*
SMART Domains Protein: ENSMUSP00000142304
Gene: ENSMUSG00000052911
AA Change: C94*

DomainStartEndE-ValueType
signal peptide 1 35 N/A INTRINSIC
LamNT 44 125 3e-3 SMART
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 98.9%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Laminins, a family of extracellular matrix glycoproteins, are the major noncollagenous constituent of basement membranes. They have been implicated in a wide variety of biological processes including cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis. Laminins, composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively), form a cruciform structure consisting of 3 short arms, each formed by a different chain, and a long arm composed of all 3 chains. Each laminin chain is a multidomain protein encoded by a distinct gene. Several isoforms of each chain have been described. Different alpha, beta and gamma chain isomers combine to give rise to different heterotrimeric laminin isoforms which are designated by Arabic numerals in the order of their discovery, i.e. alpha1beta1gamma1 heterotrimer is laminin 1. The biological functions of the different chains and trimer molecules are largely unknown, but some of the chains have been shown to differ with respect to their tissue distribution, presumably reflecting diverse functions in vivo. This gene encodes the beta chain isoform laminin, beta 2. The beta 2 chain contains the 7 structural domains typical of beta chains of laminin, including the short alpha region. However, unlike beta 1 chain, beta 2 has a more restricted tissue distribution. It is enriched in the basement membrane of muscles at the neuromuscular junctions, kidney glomerulus and vascular smooth muscle. Transgenic mice in which the beta 2 chain gene was inactivated by homologous recombination, showed defects in the maturation of neuromuscular junctions and impairment of glomerular filtration. Alternative splicing involving a non consensus 5' splice site (gc) in the 5' UTR of this gene has been reported. It was suggested that inefficient splicing of this first intron, which does not change the protein sequence, results in a greater abundance of the unspliced form of the transcript than the spliced form. The full-length nature of the spliced transcript is not known. [provided by RefSeq, Aug 2011]
PHENOTYPE: Homozygotes for a targeted null mutation exhibit small size, severe proteinuria due to a defect in glomerular filtration, abnormalities of the retina and skeletal neuromuscular synapses, and lethality by 30 days of age. [provided by MGI curators]
Allele List at MGI

All alleles(5) : Targeted, knock-out(2) Gene trapped(3)

Other mutations in this stock
Total: 61 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2200002D01Rik CCTTCTCCTTCTTCTCCTTCTTCTCCTTCTTCTCCATCTTCTCCTTCTTC CCTTCTCCTTCTTCTCCTTCTTCTCCATCTTCTCCTTCTTC 7: 28,947,048 (GRCm39) probably benign Het
2810004N23Rik T C 8: 125,567,215 (GRCm39) K229E probably damaging Het
Abca8b T C 11: 109,859,930 (GRCm39) T523A probably damaging Het
Adamts18 G T 8: 114,490,942 (GRCm39) D508E probably benign Het
Arap2 T C 5: 62,855,762 (GRCm39) E558G probably benign Het
Arid4a A T 12: 71,119,374 (GRCm39) D331V Het
Ash1l A T 3: 88,915,139 (GRCm39) K1923M possibly damaging Het
Atad2b T A 12: 5,063,859 (GRCm39) S947T probably benign Het
B4galt1 A T 4: 40,853,804 (GRCm39) M1K probably null Het
Ccpg1 G A 9: 72,904,703 (GRCm39) S4N unknown Het
Cfap43 A T 19: 47,886,310 (GRCm39) L102M probably benign Het
Clic6 T C 16: 92,327,644 (GRCm39) I483T possibly damaging Het
Col6a6 A T 9: 105,661,373 (GRCm39) D245E probably benign Het
Cpsf7 G A 19: 10,518,213 (GRCm39) probably null Het
Depdc5 A G 5: 33,091,354 (GRCm39) D721G probably benign Het
Dhx29 C T 13: 113,083,862 (GRCm39) T639I possibly damaging Het
Dock7 T C 4: 98,861,426 (GRCm39) E1397G unknown Het
Dsp C T 13: 38,376,379 (GRCm39) T1388M probably damaging Het
Fam186b C T 15: 99,183,425 (GRCm39) G73D probably damaging Het
Ganab A G 19: 8,893,076 (GRCm39) D960G probably damaging Het
Gria1 T C 11: 57,200,615 (GRCm39) V764A probably damaging Het
Grk3 T C 5: 113,062,913 (GRCm39) K645E probably benign Het
Hecw2 A T 1: 53,878,188 (GRCm39) Y1339* probably null Het
Hmcn2 C A 2: 31,316,845 (GRCm39) T3808N probably damaging Het
Il20rb A T 9: 100,355,055 (GRCm39) N129K possibly damaging Het
Iqca1l T A 5: 24,754,447 (GRCm39) I395F probably benign Het
Itgb4 T C 11: 115,874,097 (GRCm39) Y340H probably damaging Het
Itgb6 T C 2: 60,458,372 (GRCm39) I460M probably benign Het
Kat14 T C 2: 144,242,739 (GRCm39) I599T possibly damaging Het
Kif1b A C 4: 149,322,467 (GRCm39) D817E probably benign Het
Larp1 T C 11: 57,941,890 (GRCm39) S743P probably damaging Het
Ldlrap1 T C 4: 134,474,490 (GRCm39) N267S probably damaging Het
Ltbp2 G A 12: 84,837,864 (GRCm39) P1192L probably benign Het
Ltf T C 9: 110,851,064 (GRCm39) L92P probably damaging Het
Ly6g2 T A 15: 75,092,574 (GRCm39) C98S probably damaging Het
Mns1 C A 9: 72,359,890 (GRCm39) Q347K probably benign Het
Myof A T 19: 37,949,374 (GRCm39) F611I probably damaging Het
Nop56 T C 2: 130,117,601 (GRCm39) L76P probably damaging Het
Nphp1 T C 2: 127,616,008 (GRCm39) H114R Het
Or10g3 G C 14: 52,610,110 (GRCm39) Y133* probably null Het
Or1e30 C A 11: 73,678,101 (GRCm39) N112K possibly damaging Het
Or4k36 T A 2: 111,146,398 (GRCm39) N191K probably benign Het
Pcdha12 A G 18: 37,153,992 (GRCm39) D237G probably damaging Het
Pierce1 TCTCTGGGGCAGGCTTAGCCTTGGGCTCCCCCGGCTCCGGCTCCTCTGGGGCAGGCTTAGCCTTGGGCTCCCCCGGCTCCGGCTCCTCTGGGGCGGGCTTAGCCTTGGGCTCCCCCGGCTCCGGCTCCTC TCTCTGGGGCAGGCTTAGCCTTGGGCTCCCCCGGCTCCGGCTCCTCTGGGGCGGGCTTAGCCTTGGGCTCCCCCGGCTCCGGCTCCTC 2: 28,356,122 (GRCm39) probably benign Het
Pitpnm3 A T 11: 71,952,412 (GRCm39) M593K possibly damaging Het
Plxdc1 C T 11: 97,845,681 (GRCm39) V211I probably damaging Het
Prkn C A 17: 12,057,521 (GRCm39) H301N possibly damaging Het
Prpf38a A T 4: 108,430,072 (GRCm39) H143Q probably damaging Het
Sdk2 T C 11: 113,697,105 (GRCm39) T1769A probably benign Het
Spata31f1e G T 4: 42,793,833 (GRCm39) Q100K probably benign Het
Stab1 T C 14: 30,884,896 (GRCm39) D153G possibly damaging Het
Tm7sf3 C T 6: 146,525,179 (GRCm39) D89N possibly damaging Het
Tnrc6b T A 15: 80,764,637 (GRCm39) M713K probably benign Het
Top2a T C 11: 98,894,434 (GRCm39) K966E possibly damaging Het
Vars2 T C 17: 35,973,027 (GRCm39) T421A probably damaging Het
Vmn1r1 A T 1: 181,984,770 (GRCm39) C298* probably null Het
Vps35l T C 7: 118,352,118 (GRCm39) probably null Het
Vwa3a T C 7: 120,403,253 (GRCm39) probably null Het
Vwa5b1 G T 4: 138,315,940 (GRCm39) Q601K possibly damaging Het
Zbtb46 T C 2: 181,037,281 (GRCm39) K454E probably damaging Het
Zfp426 T C 9: 20,381,577 (GRCm39) H470R probably benign Het
Other mutations in Lamb2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01370:Lamb2 APN 9 108,364,932 (GRCm39) splice site probably null
IGL02072:Lamb2 APN 9 108,359,107 (GRCm39) nonsense probably null
IGL02079:Lamb2 APN 9 108,359,312 (GRCm39) missense probably damaging 1.00
IGL02087:Lamb2 APN 9 108,364,318 (GRCm39) missense possibly damaging 0.95
IGL02193:Lamb2 APN 9 108,366,559 (GRCm39) missense probably benign 0.00
IGL02199:Lamb2 APN 9 108,357,824 (GRCm39) missense possibly damaging 0.49
IGL02201:Lamb2 APN 9 108,364,741 (GRCm39) missense probably damaging 1.00
IGL02468:Lamb2 APN 9 108,364,348 (GRCm39) missense probably damaging 1.00
F6893:Lamb2 UTSW 9 108,359,755 (GRCm39) missense probably benign 0.12
R0053:Lamb2 UTSW 9 108,363,936 (GRCm39) nonsense probably null
R0053:Lamb2 UTSW 9 108,363,936 (GRCm39) nonsense probably null
R0122:Lamb2 UTSW 9 108,363,713 (GRCm39) missense probably benign 0.01
R0452:Lamb2 UTSW 9 108,363,553 (GRCm39) unclassified probably benign
R0524:Lamb2 UTSW 9 108,361,571 (GRCm39) missense possibly damaging 0.90
R0605:Lamb2 UTSW 9 108,363,304 (GRCm39) unclassified probably benign
R0737:Lamb2 UTSW 9 108,360,993 (GRCm39) missense probably benign 0.03
R1083:Lamb2 UTSW 9 108,360,892 (GRCm39) missense probably benign
R1159:Lamb2 UTSW 9 108,358,607 (GRCm39) missense probably damaging 1.00
R1283:Lamb2 UTSW 9 108,359,007 (GRCm39) missense possibly damaging 0.46
R1507:Lamb2 UTSW 9 108,367,581 (GRCm39) missense probably damaging 1.00
R1547:Lamb2 UTSW 9 108,359,824 (GRCm39) missense probably benign 0.00
R1576:Lamb2 UTSW 9 108,357,506 (GRCm39) missense probably damaging 0.96
R1647:Lamb2 UTSW 9 108,358,622 (GRCm39) critical splice donor site probably null
R1678:Lamb2 UTSW 9 108,360,885 (GRCm39) critical splice acceptor site probably null
R1740:Lamb2 UTSW 9 108,359,127 (GRCm39) missense probably damaging 1.00
R1803:Lamb2 UTSW 9 108,365,298 (GRCm39) missense probably benign
R1846:Lamb2 UTSW 9 108,364,586 (GRCm39) missense probably benign 0.00
R1863:Lamb2 UTSW 9 108,358,583 (GRCm39) missense probably benign 0.13
R2184:Lamb2 UTSW 9 108,357,752 (GRCm39) missense probably damaging 1.00
R2262:Lamb2 UTSW 9 108,357,809 (GRCm39) missense probably damaging 1.00
R2338:Lamb2 UTSW 9 108,359,340 (GRCm39) missense probably benign 0.20
R2483:Lamb2 UTSW 9 108,357,758 (GRCm39) missense probably damaging 1.00
R4084:Lamb2 UTSW 9 108,365,217 (GRCm39) missense probably benign 0.17
R4164:Lamb2 UTSW 9 108,367,497 (GRCm39) missense probably damaging 1.00
R4295:Lamb2 UTSW 9 108,363,410 (GRCm39) missense probably benign 0.42
R4422:Lamb2 UTSW 9 108,360,754 (GRCm39) missense probably damaging 0.99
R4497:Lamb2 UTSW 9 108,363,997 (GRCm39) missense probably damaging 1.00
R4880:Lamb2 UTSW 9 108,361,226 (GRCm39) splice site probably null
R4935:Lamb2 UTSW 9 108,364,700 (GRCm39) missense possibly damaging 0.93
R4977:Lamb2 UTSW 9 108,364,846 (GRCm39) missense probably damaging 0.99
R5152:Lamb2 UTSW 9 108,364,937 (GRCm39) missense probably benign
R5499:Lamb2 UTSW 9 108,365,001 (GRCm39) missense possibly damaging 0.50
R5724:Lamb2 UTSW 9 108,357,950 (GRCm39) splice site probably null
R5932:Lamb2 UTSW 9 108,357,810 (GRCm39) missense probably damaging 1.00
R5997:Lamb2 UTSW 9 108,357,587 (GRCm39) missense possibly damaging 0.65
R6052:Lamb2 UTSW 9 108,364,811 (GRCm39) nonsense probably null
R6142:Lamb2 UTSW 9 108,362,817 (GRCm39) nonsense probably null
R6245:Lamb2 UTSW 9 108,365,398 (GRCm39) splice site probably null
R6531:Lamb2 UTSW 9 108,360,925 (GRCm39) missense possibly damaging 0.78
R6557:Lamb2 UTSW 9 108,365,599 (GRCm39) missense probably damaging 1.00
R6562:Lamb2 UTSW 9 108,364,207 (GRCm39) missense possibly damaging 0.56
R6997:Lamb2 UTSW 9 108,358,496 (GRCm39) missense probably damaging 1.00
R7024:Lamb2 UTSW 9 108,366,687 (GRCm39) missense probably benign 0.00
R7116:Lamb2 UTSW 9 108,364,522 (GRCm39) missense probably damaging 1.00
R7146:Lamb2 UTSW 9 108,361,283 (GRCm39) missense possibly damaging 0.94
R7261:Lamb2 UTSW 9 108,358,496 (GRCm39) missense probably damaging 1.00
R7288:Lamb2 UTSW 9 108,365,523 (GRCm39) missense probably benign 0.20
R7404:Lamb2 UTSW 9 108,364,782 (GRCm39) missense probably damaging 1.00
R7456:Lamb2 UTSW 9 108,362,979 (GRCm39) missense possibly damaging 0.95
R7472:Lamb2 UTSW 9 108,363,347 (GRCm39) missense probably benign 0.01
R7623:Lamb2 UTSW 9 108,366,423 (GRCm39) missense possibly damaging 0.62
R8125:Lamb2 UTSW 9 108,364,722 (GRCm39) missense probably benign
R8153:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8154:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8155:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8156:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8157:Lamb2 UTSW 9 108,357,845 (GRCm39) missense probably damaging 0.99
R8419:Lamb2 UTSW 9 108,365,563 (GRCm39) missense probably benign 0.00
R8695:Lamb2 UTSW 9 108,363,365 (GRCm39) missense probably benign 0.08
R8825:Lamb2 UTSW 9 108,362,460 (GRCm39) missense probably benign 0.01
R9005:Lamb2 UTSW 9 108,361,370 (GRCm39) critical splice donor site probably null
R9315:Lamb2 UTSW 9 108,364,366 (GRCm39) missense possibly damaging 0.77
R9398:Lamb2 UTSW 9 108,364,366 (GRCm39) missense possibly damaging 0.77
R9419:Lamb2 UTSW 9 108,356,959 (GRCm39) missense unknown
R9495:Lamb2 UTSW 9 108,358,006 (GRCm39) missense probably damaging 1.00
R9514:Lamb2 UTSW 9 108,358,006 (GRCm39) missense probably damaging 1.00
R9529:Lamb2 UTSW 9 108,363,477 (GRCm39) missense probably benign 0.05
R9532:Lamb2 UTSW 9 108,365,830 (GRCm39) missense probably damaging 1.00
R9534:Lamb2 UTSW 9 108,365,830 (GRCm39) missense probably damaging 1.00
R9734:Lamb2 UTSW 9 108,365,830 (GRCm39) missense probably damaging 1.00
Z1176:Lamb2 UTSW 9 108,360,100 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- TCTCGAGGAAGCTGCTATCC -3'
(R):5'- TCTGCGGTTACTGGTTACAAG -3'

Sequencing Primer
(F):5'- GACAGACTGACGGCCTCATC -3'
(R):5'- CGGTTACTGGTTACAAGCCCTAG -3'
Posted On 2022-06-15