Incidental Mutation 'IGL01776:Col8a2'
ID 153875
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Col8a2
Ensembl Gene ENSMUSG00000056174
Gene Name collagen, type VIII, alpha 2
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.408) question?
Stock # IGL01776
Quality Score
Chromosome 4
Chromosomal Location 126286793-126314330 bp(+) (GRCm38)
Type of Mutation unclassified
DNA Base Change (assembly) C to A at 126309805 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000123003 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000070132] [ENSMUST00000128435]
AlphaFold P25318
Predicted Effect probably benign
Transcript: ENSMUST00000070132
SMART Domains Protein: ENSMUSP00000070270
Gene: ENSMUSG00000056174

signal peptide 1 24 N/A INTRINSIC
low complexity region 25 33 N/A INTRINSIC
low complexity region 60 69 N/A INTRINSIC
low complexity region 72 105 N/A INTRINSIC
Pfam:Collagen 116 168 1.2e-9 PFAM
low complexity region 207 237 N/A INTRINSIC
internal_repeat_1 240 259 1.3e-7 PROSPERO
low complexity region 260 327 N/A INTRINSIC
low complexity region 342 387 N/A INTRINSIC
internal_repeat_1 388 407 1.3e-7 PROSPERO
low complexity region 408 429 N/A INTRINSIC
low complexity region 440 459 N/A INTRINSIC
low complexity region 471 530 N/A INTRINSIC
low complexity region 545 557 N/A INTRINSIC
C1Q 564 699 2.44e-78 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000128435
SMART Domains Protein: ENSMUSP00000123003
Gene: ENSMUSG00000056174

signal peptide 1 24 N/A INTRINSIC
low complexity region 25 33 N/A INTRINSIC
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes the alpha 2 chain of type VIII collagen. This protein is a major component of the basement membrane of the corneal endothelium and forms homo- or heterotrimers with alpha 1 (VIII) type collagens. Defects in this gene are associated with Fuchs endothelial corneal dystrophy and posterior polymorphous corneal dystrophy type 2. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit a thinner Descemet's membrane of the cornea. Mice heterozygous or homozygous for an ENU-induced mutation exhibit thin cornea, corneal epithelium, stroma, and Descemet membrane, and enlarged anterior chamber. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 23 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ankrd17 G A 5: 90,283,364 Q854* probably null Het
Armc8 A G 9: 99,526,883 probably benign Het
Chrna7 A G 7: 63,099,519 V405A probably benign Het
Dcn A G 10: 97,495,076 I91V possibly damaging Het
Dock7 T A 4: 98,940,941 R2069S possibly damaging Het
Gm7247 A G 14: 51,521,899 S112G possibly damaging Het
Hmcn1 T G 1: 150,672,038 T2721P possibly damaging Het
Hsd3b3 T C 3: 98,743,847 T96A probably benign Het
Ifi207 G A 1: 173,725,044 L936F probably damaging Het
Kcp G A 6: 29,497,908 P477S probably damaging Het
Mei1 T C 15: 82,095,932 probably null Het
Mgmt T A 7: 137,121,564 L121* probably null Het
Mrps35 G A 6: 147,070,716 V286I probably benign Het
Naxd T C 8: 11,505,525 probably null Het
Pam A G 1: 97,885,600 probably null Het
Plcxd1 G A 5: 110,101,380 probably benign Het
Rasgrp1 A G 2: 117,286,840 probably null Het
Spag9 C T 11: 94,116,727 probably benign Het
Spire2 T C 8: 123,359,392 S288P probably damaging Het
Stk11ip T C 1: 75,527,821 V322A probably benign Het
Syt17 A C 7: 118,409,953 L343R probably damaging Het
Tap1 G A 17: 34,193,128 V436I possibly damaging Het
Virma C T 4: 11,527,792 R1228C probably damaging Het
Other mutations in Col8a2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00952:Col8a2 APN 4 126309791 missense probably damaging 0.99
IGL03367:Col8a2 APN 4 126312198 missense probably damaging 1.00
R1861:Col8a2 UTSW 4 126311624 unclassified probably benign
R1909:Col8a2 UTSW 4 126312133 missense possibly damaging 0.63
R2038:Col8a2 UTSW 4 126311315 unclassified probably benign
R2866:Col8a2 UTSW 4 126311199 unclassified probably benign
R4013:Col8a2 UTSW 4 126311115 unclassified probably benign
R4586:Col8a2 UTSW 4 126311019 unclassified probably benign
R4995:Col8a2 UTSW 4 126310788 missense probably damaging 0.98
R5160:Col8a2 UTSW 4 126310412 missense possibly damaging 0.77
R5574:Col8a2 UTSW 4 126311268 unclassified probably benign
R5858:Col8a2 UTSW 4 126311300 unclassified probably benign
R6803:Col8a2 UTSW 4 126312000 missense probably damaging 1.00
R8876:Col8a2 UTSW 4 126310854 missense probably damaging 0.96
R9523:Col8a2 UTSW 4 126311480 missense unknown
Z1177:Col8a2 UTSW 4 126311543 missense unknown
Posted On 2014-02-04