Incidental Mutation 'R7261:Lamb2'
ID 564630
Institutional Source Beutler Lab
Gene Symbol Lamb2
Ensembl Gene ENSMUSG00000052911
Gene Name laminin, beta 2
Synonyms Lams, npht, Lamb-2
MMRRC Submission 045387-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.854) question?
Stock # R7261 (G1)
Quality Score 225.009
Status Validated
Chromosome 9
Chromosomal Location 108357080-108367729 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 108358496 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Histidine at position 178 (Y178H)
Ref Sequence ENSEMBL: ENSMUSP00000069087 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000065014] [ENSMUST00000194147] [ENSMUST00000195058] [ENSMUST00000195483]
AlphaFold Q61292
Predicted Effect probably damaging
Transcript: ENSMUST00000065014
AA Change: Y178H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000069087
Gene: ENSMUSG00000052911
AA Change: Y178H

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 benign
Transcript: ENSMUST00000195058
SMART Domains Protein: ENSMUSP00000141757
Gene: ENSMUSG00000052911

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

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: 99.6%
  • 20x: 98.5%
Validation Efficiency 99% (84/85)
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: 82 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acaca T C 11: 84,259,526 (GRCm39) F1954L probably damaging Het
Acmsd T G 1: 127,687,561 (GRCm39) I281R probably damaging Het
Adamts2 A T 11: 50,677,424 (GRCm39) M742L possibly damaging Het
Adgrf4 G A 17: 42,978,326 (GRCm39) T339I probably benign Het
Aff1 T C 5: 103,976,245 (GRCm39) S448P probably damaging Het
Agbl2 A T 2: 90,619,288 (GRCm39) S38C possibly damaging Het
Akap7 C T 10: 25,147,416 (GRCm39) D105N possibly damaging Het
Arhgap21 A G 2: 20,885,177 (GRCm39) F677L probably benign Het
Atf6b G T 17: 34,869,792 (GRCm39) V271F probably damaging Het
B3gnt5 A G 16: 19,588,123 (GRCm39) Y114C probably damaging Het
Casp7 T A 19: 56,424,765 (GRCm39) D161E probably benign Het
Catsper4 TTCTC TTC 4: 133,954,423 (GRCm39) probably null Het
Ccdc162 T C 10: 41,437,136 (GRCm39) T1758A probably benign Het
Cfap74 C A 4: 155,549,831 (GRCm39) P155T unknown Het
Champ1 A G 8: 13,928,517 (GRCm39) D225G possibly damaging Het
Chrng A T 1: 87,134,962 (GRCm39) probably null Het
Cnksr1 T C 4: 133,963,084 (GRCm39) probably null Het
Col15a1 G A 4: 47,269,088 (GRCm39) G582D probably benign Het
Cwc25 A G 11: 97,648,585 (GRCm39) V81A possibly damaging Het
Ddhd1 A G 14: 45,894,688 (GRCm39) Y261H probably damaging Het
Defa29 A G 8: 21,816,818 (GRCm39) probably null Het
Diaph3 A C 14: 87,202,893 (GRCm39) C666G probably benign Het
Dlx2 A G 2: 71,375,019 (GRCm39) Y282H probably damaging Het
Dsc3 A T 18: 20,113,814 (GRCm39) Y369* probably null Het
Dtwd1 A G 2: 126,000,424 (GRCm39) N120S probably benign Het
Dysf G A 6: 84,169,992 (GRCm39) S1761N probably damaging Het
Enthd1 A T 15: 80,444,416 (GRCm39) N46K probably damaging Het
Epha7 T A 4: 28,813,418 (GRCm39) I12N probably benign Het
Fam171a2 T A 11: 102,328,900 (GRCm39) N620Y probably damaging Het
Garin4 T C 1: 190,896,308 (GRCm39) S112G unknown Het
Gfpt2 A T 11: 49,714,078 (GRCm39) E278D possibly damaging Het
Gm3285 A G 10: 77,698,244 (GRCm39) Q131R unknown Het
Gpcpd1 A C 2: 132,410,619 (GRCm39) C23G probably damaging Het
Gtpbp4 A T 13: 9,037,954 (GRCm39) H228Q probably benign Het
Hdac7 A G 15: 97,704,415 (GRCm39) V500A probably benign Het
Hykk T G 9: 54,828,010 (GRCm39) M83R possibly damaging Het
Idi1 A G 13: 8,936,931 (GRCm39) I101V probably benign Het
Irs2 A T 8: 11,057,018 (GRCm39) H471Q possibly damaging Het
Itsn1 T C 16: 91,702,194 (GRCm39) V12A probably benign Het
Jak2 A G 19: 29,288,385 (GRCm39) I1079V possibly damaging Het
Kcnt2 G A 1: 140,282,255 (GRCm39) R80H possibly damaging Het
Lgr5 A T 10: 115,423,370 (GRCm39) L10Q possibly damaging Het
Lnx1 G T 5: 74,838,175 (GRCm39) S29* probably null Het
Lpcat3 T A 6: 124,675,050 (GRCm39) F57I probably benign Het
Manf T C 9: 106,769,088 (GRCm39) T4A probably benign Het
Map2k3 G A 11: 60,836,393 (GRCm39) probably null Het
Myh14 G A 7: 44,273,761 (GRCm39) Q1329* probably null Het
Myocd T C 11: 65,078,422 (GRCm39) S458G probably damaging Het
Ncor2 T C 5: 125,187,143 (GRCm39) probably null Het
Ndufs8 A T 19: 3,961,606 (GRCm39) N23K probably benign Het
Nkx6-1 T C 5: 101,812,006 (GRCm39) K32R unknown Het
Nlrp3 T G 11: 59,439,272 (GRCm39) V283G possibly damaging Het
Nme3 A G 17: 25,116,037 (GRCm39) probably null Het
Or1o3 A G 17: 37,574,076 (GRCm39) F160L probably benign Het
Or8g23 C T 9: 38,971,504 (GRCm39) V153M possibly damaging Het
Parvg T C 15: 84,215,297 (GRCm39) probably null Het
Peg10 T A 6: 4,756,591 (GRCm39) M389K unknown Het
Phf23 G T 11: 69,890,091 (GRCm39) C340F possibly damaging Het
Piwil2 A G 14: 70,611,860 (GRCm39) Y929H probably damaging Het
Prss39 A G 1: 34,539,369 (GRCm39) D203G probably damaging Het
Prss54 G T 8: 96,286,367 (GRCm39) D235E probably benign Het
Prtg T A 9: 72,815,117 (GRCm39) M1015K possibly damaging Het
Rbbp8 T C 18: 11,838,799 (GRCm39) I160T probably damaging Het
Rxylt1 A T 10: 121,924,822 (GRCm39) D293E probably benign Het
Scn10a C A 9: 119,438,790 (GRCm39) C1692F probably damaging Het
Scn11a C T 9: 119,648,899 (GRCm39) D55N probably damaging Het
Secisbp2 G T 13: 51,836,498 (GRCm39) V768F probably damaging Het
Skic3 A G 13: 76,261,698 (GRCm39) T138A probably benign Het
Spag16 T C 1: 70,338,780 (GRCm39) I426T possibly damaging Het
Sspo G A 6: 48,427,011 (GRCm39) V250M possibly damaging Het
Strbp A T 2: 37,531,149 (GRCm39) probably null Het
Sv2c C T 13: 96,224,809 (GRCm39) V167M probably damaging Het
Tdpoz1 G A 3: 93,577,794 (GRCm39) S330L not run Het
Tigd2 T A 6: 59,188,052 (GRCm39) D306E probably benign Het
Trrap C T 5: 144,782,287 (GRCm39) P3278S possibly damaging Het
Vdac1 A T 11: 52,265,761 (GRCm39) K28N probably damaging Het
Vmn1r84 A T 7: 12,096,069 (GRCm39) M208K probably damaging Het
Vmn2r77 A T 7: 86,460,518 (GRCm39) K615* probably null Het
Vps11 A G 9: 44,265,800 (GRCm39) L493P probably damaging Het
Zbtb21 T C 16: 97,754,179 (GRCm39) I35V possibly damaging Het
Zbtb26 A T 2: 37,326,667 (GRCm39) M123K possibly damaging Het
Zfp236 A T 18: 82,627,470 (GRCm39) D1576E possibly damaging 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
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
R9450:Lamb2 UTSW 9 108,357,760 (GRCm39) nonsense probably null
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'- CCCATGTGTCTGAGATGCTC -3'
(R):5'- GCACACGATAGATGACCTAGC -3'

Sequencing Primer
(F):5'- TGCTCAGCAGTGATCATGAC -3'
(R):5'- GATAATGAACCTCGCTTCACGTC -3'
Posted On 2019-06-26