Incidental Mutation 'I2289:Nrcam'
ID 597
Institutional Source Beutler Lab
Gene Symbol Nrcam
Ensembl Gene ENSMUSG00000020598
Gene Name neuronal cell adhesion molecule
Synonyms C130076O07Rik, C030017F07Rik, Bravo
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # I2289 (G3) of strain 633
Quality Score
Status Validated
Chromosome 12
Chromosomal Location 44375668-44648747 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to A at 44611098 bp (GRCm39)
Zygosity Homozygous
Amino Acid Change Histidine to Glutamine at position 567 (H567Q)
Ref Sequence ENSEMBL: ENSMUSP00000106376 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000020939] [ENSMUST00000110748] [ENSMUST00000220123]
AlphaFold Q810U4
Predicted Effect probably benign
Transcript: ENSMUST00000020939
AA Change: H567Q

PolyPhen 2 Score 0.014 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000020939
Gene: ENSMUSG00000020598
AA Change: H567Q

DomainStartEndE-ValueType
signal peptide 1 29 N/A INTRINSIC
IGc2 53 124 5.37e-4 SMART
IG 146 233 3.91e-6 SMART
IGc2 277 341 1.73e-16 SMART
IGc2 367 433 4.85e-11 SMART
IGc2 461 526 4.92e-12 SMART
IGc2 552 617 6.55e-8 SMART
low complexity region 618 623 N/A INTRINSIC
FN3 641 724 3.24e-10 SMART
FN3 738 824 1.77e-2 SMART
FN3 840 931 1.97e-9 SMART
FN3 946 1031 3.73e-10 SMART
transmembrane domain 1120 1142 N/A INTRINSIC
Pfam:Bravo_FIGEY 1143 1232 2.9e-29 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000110748
AA Change: H567Q

PolyPhen 2 Score 0.058 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000106376
Gene: ENSMUSG00000020598
AA Change: H567Q

DomainStartEndE-ValueType
signal peptide 1 29 N/A INTRINSIC
IGc2 53 124 5.37e-4 SMART
IG 146 233 3.91e-6 SMART
IGc2 277 341 1.73e-16 SMART
IGc2 367 433 4.85e-11 SMART
IGc2 461 526 4.92e-12 SMART
IGc2 552 617 6.55e-8 SMART
FN3 631 714 3.24e-10 SMART
FN3 728 814 1.77e-2 SMART
FN3 830 921 1.97e-9 SMART
FN3 936 1021 3.73e-10 SMART
transmembrane domain 1050 1072 N/A INTRINSIC
Pfam:Bravo_FIGEY 1073 1164 9.3e-35 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000219906
Predicted Effect probably benign
Transcript: ENSMUST00000220123
AA Change: H573Q

PolyPhen 2 Score 0.040 (Sensitivity: 0.94; Specificity: 0.83)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000220130
Meta Mutation Damage Score 0.1847 question?
Coding Region Coverage
  • 1x: 87.8%
  • 3x: 75.8%
Het Detection Efficiency 55.8%
Validation Efficiency 88% (46/52)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Cell adhesion molecules (CAMs) are members of the immunoglobulin superfamily. This gene encodes a neuronal cell adhesion molecule with multiple immunoglobulin-like C2-type domains and fibronectin type-III domains. This ankyrin-binding protein is involved in neuron-neuron adhesion and promotes directional signaling during axonal cone growth. This gene is also expressed in non-neural tissues and may play a general role in cell-cell communication via signaling from its intracellular domain to the actin cytoskeleton during directional cell migration. Allelic variants of this gene have been associated with autism and addiction vulnerability. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygotes for targeted null mutations exhibit disorganization of lens fibers, cellular disintegration, and accumulation of cellular debris resulting in cataracts. Mutants show mild reductions in cerebellar lobe size. [provided by MGI curators]
Allele List at MGI

All alleles(9) : Targeted, knock-out(2) Targeted, other(4) Gene trapped(2) Chemically induced(1)

Other mutations in this stock
Total: 21 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adamts12 T A 15: 11,071,894 (GRCm39) L146Q probably benign Homo
Adgrv1 A G 13: 81,585,643 (GRCm39) L4607P probably damaging Het
Amelx A G X: 167,961,009 (GRCm39) probably null Homo
Ankfy1 A G 11: 72,621,311 (GRCm39) K199R probably benign Het
Arfgef1 T C 1: 10,243,478 (GRCm39) K1024E probably damaging Het
Bank1 T A 3: 135,760,179 (GRCm39) D782V probably damaging Homo
Csmd1 A T 8: 15,962,381 (GRCm39) I3271K probably benign Homo
Fat1 A G 8: 45,478,033 (GRCm39) I2360V probably benign Homo
Gldc G A 19: 30,124,576 (GRCm39) R241* probably null Het
Golgb1 A G 16: 36,718,904 (GRCm39) H270R probably benign Het
Heg1 T C 16: 33,583,829 (GRCm39) I1212T probably damaging Het
Hes1 T A 16: 29,884,699 (GRCm39) S53R probably damaging Het
Ibsp G A 5: 104,450,353 (GRCm39) R57Q possibly damaging Homo
Lrp1b A T 2: 41,012,944 (GRCm39) I2001K probably damaging Het
Nf1 G A 11: 79,438,602 (GRCm39) R2181H probably damaging Het
Or51a10 T C 7: 103,698,961 (GRCm39) Y200C probably damaging Homo
Or5bw2 A T 7: 6,573,818 (GRCm39) Y276F probably damaging Het
Rraga T C 4: 86,494,522 (GRCm39) F123L probably damaging Het
Spam1 A G 6: 24,796,477 (GRCm39) I143V probably benign Het
Synj2 A G 17: 6,072,542 (GRCm39) probably benign Homo
T A T 17: 8,657,474 (GRCm39) T112S probably benign Homo
Other mutations in Nrcam
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01399:Nrcam APN 12 44,622,667 (GRCm39) missense probably benign 0.27
IGL01657:Nrcam APN 12 44,606,583 (GRCm39) missense probably damaging 1.00
IGL02434:Nrcam APN 12 44,637,026 (GRCm39) splice site probably benign
IGL02455:Nrcam APN 12 44,617,313 (GRCm39) missense probably damaging 1.00
IGL02712:Nrcam APN 12 44,620,610 (GRCm39) missense probably damaging 1.00
IGL02834:Nrcam APN 12 44,587,858 (GRCm39) critical splice donor site probably null
IGL03022:Nrcam APN 12 44,645,225 (GRCm39) missense probably damaging 1.00
IGL03174:Nrcam APN 12 44,622,789 (GRCm39) splice site probably benign
IGL03389:Nrcam APN 12 44,596,689 (GRCm39) missense probably benign 0.00
IGL03397:Nrcam APN 12 44,606,540 (GRCm39) missense probably damaging 1.00
I2288:Nrcam UTSW 12 44,611,098 (GRCm39) missense probably benign 0.06
R0063:Nrcam UTSW 12 44,596,811 (GRCm39) missense possibly damaging 0.49
R0063:Nrcam UTSW 12 44,596,811 (GRCm39) missense possibly damaging 0.49
R0195:Nrcam UTSW 12 44,631,628 (GRCm39) missense probably benign 0.00
R0463:Nrcam UTSW 12 44,598,124 (GRCm39) missense probably damaging 1.00
R0590:Nrcam UTSW 12 44,610,815 (GRCm39) missense probably damaging 1.00
R0674:Nrcam UTSW 12 44,611,105 (GRCm39) missense probably benign 0.17
R0930:Nrcam UTSW 12 44,596,667 (GRCm39) missense probably benign
R1241:Nrcam UTSW 12 44,636,947 (GRCm39) missense probably damaging 1.00
R1279:Nrcam UTSW 12 44,591,660 (GRCm39) splice site probably null
R1523:Nrcam UTSW 12 44,619,032 (GRCm39) missense probably damaging 1.00
R1572:Nrcam UTSW 12 44,584,147 (GRCm39) splice site probably benign
R1629:Nrcam UTSW 12 44,610,769 (GRCm39) missense probably benign 0.00
R1651:Nrcam UTSW 12 44,623,462 (GRCm39) missense probably damaging 0.97
R1729:Nrcam UTSW 12 44,620,633 (GRCm39) missense probably benign
R1739:Nrcam UTSW 12 44,618,458 (GRCm39) missense probably damaging 1.00
R1803:Nrcam UTSW 12 44,618,991 (GRCm39) missense probably benign
R1884:Nrcam UTSW 12 44,591,538 (GRCm39) missense probably damaging 1.00
R1974:Nrcam UTSW 12 44,610,776 (GRCm39) missense probably benign 0.05
R1992:Nrcam UTSW 12 44,587,753 (GRCm39) missense probably damaging 1.00
R2102:Nrcam UTSW 12 44,623,471 (GRCm39) missense probably benign 0.00
R2106:Nrcam UTSW 12 44,617,073 (GRCm39) missense probably benign 0.12
R3854:Nrcam UTSW 12 44,622,667 (GRCm39) missense probably benign 0.27
R4005:Nrcam UTSW 12 44,579,429 (GRCm39) missense probably benign
R4088:Nrcam UTSW 12 44,618,985 (GRCm39) missense possibly damaging 0.93
R4115:Nrcam UTSW 12 44,613,109 (GRCm39) missense possibly damaging 0.87
R4428:Nrcam UTSW 12 44,623,558 (GRCm39) missense possibly damaging 0.95
R4458:Nrcam UTSW 12 44,606,513 (GRCm39) missense probably damaging 1.00
R4580:Nrcam UTSW 12 44,609,323 (GRCm39) critical splice donor site probably null
R4601:Nrcam UTSW 12 44,637,839 (GRCm39) missense probably damaging 1.00
R4688:Nrcam UTSW 12 44,594,020 (GRCm39) missense probably benign
R4825:Nrcam UTSW 12 44,622,769 (GRCm39) nonsense probably null
R4838:Nrcam UTSW 12 44,620,802 (GRCm39) missense probably damaging 1.00
R4950:Nrcam UTSW 12 44,645,273 (GRCm39) missense probably damaging 1.00
R4960:Nrcam UTSW 12 44,613,082 (GRCm39) missense probably benign 0.01
R5081:Nrcam UTSW 12 44,617,136 (GRCm39) missense probably benign 0.00
R5297:Nrcam UTSW 12 44,591,567 (GRCm39) missense probably damaging 1.00
R5504:Nrcam UTSW 12 44,610,915 (GRCm39) critical splice donor site probably null
R5593:Nrcam UTSW 12 44,606,483 (GRCm39) missense probably damaging 1.00
R5654:Nrcam UTSW 12 44,610,841 (GRCm39) missense probably benign
R5691:Nrcam UTSW 12 44,611,039 (GRCm39) missense probably damaging 1.00
R5890:Nrcam UTSW 12 44,623,554 (GRCm39) missense probably benign
R5937:Nrcam UTSW 12 44,619,074 (GRCm39) missense probably benign 0.00
R5980:Nrcam UTSW 12 44,618,416 (GRCm39) missense probably damaging 1.00
R6132:Nrcam UTSW 12 44,617,007 (GRCm39) missense probably damaging 1.00
R6213:Nrcam UTSW 12 44,609,215 (GRCm39) missense possibly damaging 0.90
R6334:Nrcam UTSW 12 44,619,083 (GRCm39) missense probably benign
R6617:Nrcam UTSW 12 44,587,746 (GRCm39) missense probably damaging 1.00
R6666:Nrcam UTSW 12 44,618,338 (GRCm39) missense probably damaging 1.00
R7191:Nrcam UTSW 12 44,619,027 (GRCm39) missense probably benign 0.01
R7284:Nrcam UTSW 12 44,610,817 (GRCm39) missense probably damaging 1.00
R7326:Nrcam UTSW 12 44,610,809 (GRCm39) missense possibly damaging 0.95
R7388:Nrcam UTSW 12 44,645,272 (GRCm39) missense probably damaging 1.00
R7650:Nrcam UTSW 12 44,594,105 (GRCm39) missense probably damaging 1.00
R7734:Nrcam UTSW 12 44,584,034 (GRCm39) missense possibly damaging 0.49
R7757:Nrcam UTSW 12 44,596,681 (GRCm39) nonsense probably null
R7840:Nrcam UTSW 12 44,587,858 (GRCm39) critical splice donor site probably null
R7917:Nrcam UTSW 12 44,620,546 (GRCm39) splice site probably null
R7935:Nrcam UTSW 12 44,631,644 (GRCm39) missense possibly damaging 0.92
R7955:Nrcam UTSW 12 44,631,737 (GRCm39) missense probably benign 0.26
R8117:Nrcam UTSW 12 44,645,365 (GRCm39) missense probably damaging 1.00
R8117:Nrcam UTSW 12 44,618,371 (GRCm39) missense probably benign 0.04
R8153:Nrcam UTSW 12 44,631,755 (GRCm39) missense probably benign
R8189:Nrcam UTSW 12 44,617,291 (GRCm39) missense possibly damaging 0.94
R8215:Nrcam UTSW 12 44,610,896 (GRCm39) missense probably benign 0.02
R8719:Nrcam UTSW 12 44,586,325 (GRCm39) missense probably benign
R8738:Nrcam UTSW 12 44,619,075 (GRCm39) missense possibly damaging 0.67
R8794:Nrcam UTSW 12 44,624,958 (GRCm39) missense probably benign 0.01
R8831:Nrcam UTSW 12 44,591,680 (GRCm39) critical splice donor site probably null
R8858:Nrcam UTSW 12 44,644,554 (GRCm39) splice site probably benign
R8885:Nrcam UTSW 12 44,610,908 (GRCm39) missense probably benign 0.10
R8912:Nrcam UTSW 12 44,645,366 (GRCm39) missense probably damaging 1.00
R9178:Nrcam UTSW 12 44,615,329 (GRCm39) missense possibly damaging 0.69
R9243:Nrcam UTSW 12 44,620,607 (GRCm39) missense probably damaging 1.00
R9257:Nrcam UTSW 12 44,610,837 (GRCm39) missense probably benign 0.27
R9266:Nrcam UTSW 12 44,636,917 (GRCm39) missense probably damaging 1.00
R9606:Nrcam UTSW 12 44,609,240 (GRCm39) missense probably damaging 0.97
R9623:Nrcam UTSW 12 44,636,931 (GRCm39) missense probably damaging 1.00
R9681:Nrcam UTSW 12 44,598,133 (GRCm39) missense probably null 1.00
R9747:Nrcam UTSW 12 44,645,192 (GRCm39) missense probably damaging 1.00
U24488:Nrcam UTSW 12 44,584,042 (GRCm39) missense probably damaging 1.00
X0057:Nrcam UTSW 12 44,598,199 (GRCm39) missense probably benign
X0066:Nrcam UTSW 12 44,596,812 (GRCm39) missense probably benign 0.00
Z1176:Nrcam UTSW 12 44,618,353 (GRCm39) missense probably damaging 1.00
Z1177:Nrcam UTSW 12 44,620,799 (GRCm39) missense probably damaging 1.00
Nature of Mutation

DNA sequencing using the SOLiD technique identified a C to A transversion at position 2243 of the Nrcam transcript in exon 16 of 31 exons using Genbank record NM_176930.4.  Multiple transcripts of Nrcam gene are displayed on Ensembl.  The mutated nucleotide causes a histidine to glutamine substitution at amino acid 567 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method.

Protein Function and Prediction

The Nrcam gene encodes a 1256 amino acid cell adhesion molecule. The cell adhesion molecules (CAMs) are a subset of the immunoglobin (Ig) superfamily found in the nervous systems of both vertebrates and invertebrates. They are usually surface membrane proteins with multiple Ig domains at their N termini followed by several fibronectin type III repeats and either a transmembrane intracellular domain or a glycophosphatidylinositol-linked membrane anchor at the C terminus.  NRCAM has 6 Ig-like C2-type domains and 4 fibronectin type III repeats along with a transmembrane domain.  The protein is involved in neuron-neuron adhesion. Multiple isoforms are displayed on Uniprot (Uniprot Q810U4). Homozygote mice for targeted null mutations exhibit disorganization of lens fibers, cellular disintegration, and accumulation of cellular debris resulting in cataracts. Mutants show mild reductions in cerebellar lobe size.

The H567Q alteration occurs in the sixth Ig-like domain.

Posted On 2011-03-07