Incidental Mutation 'R8523:Col18a1'
ID 658662
Institutional Source Beutler Lab
Gene Symbol Col18a1
Ensembl Gene ENSMUSG00000001435
Gene Name collagen, type XVIII, alpha 1
Synonyms endostatin
MMRRC Submission 067948-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R8523 (G1)
Quality Score 225.009
Status Not validated
Chromosome 10
Chromosomal Location 76888013-77002351 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 76890068 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Proline at position 1678 (S1678P)
Ref Sequence ENSEMBL: ENSMUSP00000072538 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000072755] [ENSMUST00000081654] [ENSMUST00000105409] [ENSMUST00000105410] [ENSMUST00000144234]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000072755
AA Change: S1678P

PolyPhen 2 Score 0.991 (Sensitivity: 0.71; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000072538
Gene: ENSMUSG00000001435
AA Change: S1678P

DomainStartEndE-ValueType
Pfam:DUF959 16 218 6.8e-104 PFAM
low complexity region 295 307 N/A INTRINSIC
FRI 369 484 4.03e-47 SMART
TSPN 492 680 4.25e-72 SMART
LamG 541 679 2.17e-2 SMART
low complexity region 699 715 N/A INTRINSIC
low complexity region 719 734 N/A INTRINSIC
low complexity region 739 751 N/A INTRINSIC
Pfam:Collagen 820 881 5.5e-11 PFAM
low complexity region 921 942 N/A INTRINSIC
Pfam:Collagen 951 1008 6.1e-10 PFAM
Pfam:Collagen 988 1053 1.4e-8 PFAM
Pfam:Collagen 1060 1117 7.3e-10 PFAM
low complexity region 1132 1147 N/A INTRINSIC
low complexity region 1166 1181 N/A INTRINSIC
low complexity region 1186 1202 N/A INTRINSIC
Pfam:Collagen 1207 1267 8.2e-10 PFAM
low complexity region 1275 1288 N/A INTRINSIC
low complexity region 1301 1319 N/A INTRINSIC
low complexity region 1358 1393 N/A INTRINSIC
low complexity region 1397 1414 N/A INTRINSIC
low complexity region 1417 1433 N/A INTRINSIC
low complexity region 1441 1454 N/A INTRINSIC
Pfam:Endostatin 1461 1769 4.4e-116 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000081654
AA Change: S1219P

PolyPhen 2 Score 0.822 (Sensitivity: 0.84; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000080358
Gene: ENSMUSG00000001435
AA Change: S1219P

DomainStartEndE-ValueType
signal peptide 1 25 N/A INTRINSIC
TSPN 33 221 4.25e-72 SMART
LamG 82 220 2.17e-2 SMART
low complexity region 240 256 N/A INTRINSIC
low complexity region 260 275 N/A INTRINSIC
low complexity region 280 292 N/A INTRINSIC
Pfam:Collagen 359 422 1.6e-10 PFAM
low complexity region 462 483 N/A INTRINSIC
Pfam:Collagen 492 549 1.6e-9 PFAM
Pfam:Collagen 529 594 3.3e-8 PFAM
Pfam:Collagen 601 658 1.9e-9 PFAM
Pfam:Collagen 631 689 4e-8 PFAM
Pfam:Collagen 701 752 1.7e-7 PFAM
Pfam:Collagen 748 808 2.2e-9 PFAM
low complexity region 816 829 N/A INTRINSIC
low complexity region 842 860 N/A INTRINSIC
low complexity region 899 934 N/A INTRINSIC
low complexity region 938 955 N/A INTRINSIC
low complexity region 958 974 N/A INTRINSIC
low complexity region 982 995 N/A INTRINSIC
Pfam:Endostatin 999 1315 8.2e-151 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000105409
AA Change: S1431P

PolyPhen 2 Score 0.932 (Sensitivity: 0.80; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000101049
Gene: ENSMUSG00000001435
AA Change: S1431P

DomainStartEndE-ValueType
Pfam:DUF959 16 219 3.6e-100 PFAM
TSPN 245 433 4.25e-72 SMART
LamG 294 432 2.17e-2 SMART
low complexity region 452 468 N/A INTRINSIC
low complexity region 472 487 N/A INTRINSIC
low complexity region 492 504 N/A INTRINSIC
low complexity region 542 613 N/A INTRINSIC
low complexity region 630 648 N/A INTRINSIC
low complexity region 674 695 N/A INTRINSIC
Pfam:Collagen 700 761 5.4e-9 PFAM
Pfam:Collagen 741 806 4e-8 PFAM
Pfam:Collagen 813 874 2.1e-10 PFAM
Pfam:Collagen 846 901 1.2e-7 PFAM
Pfam:Collagen 913 964 2.1e-7 PFAM
Pfam:Collagen 960 1020 2.6e-9 PFAM
low complexity region 1028 1041 N/A INTRINSIC
low complexity region 1054 1072 N/A INTRINSIC
low complexity region 1111 1146 N/A INTRINSIC
low complexity region 1150 1167 N/A INTRINSIC
low complexity region 1170 1186 N/A INTRINSIC
low complexity region 1194 1207 N/A INTRINSIC
Pfam:Endostatin 1211 1527 1.1e-150 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000105410
SMART Domains Protein: ENSMUSP00000101050
Gene: ENSMUSG00000001436

DomainStartEndE-ValueType
Pfam:Folate_carrier 23 427 3e-167 PFAM
Pfam:MFS_1 66 406 2.6e-13 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000131031
SMART Domains Protein: ENSMUSP00000114884
Gene: ENSMUSG00000001436

DomainStartEndE-ValueType
Pfam:Folate_carrier 1 112 1.3e-45 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000144234
SMART Domains Protein: ENSMUSP00000116784
Gene: ENSMUSG00000001436

DomainStartEndE-ValueType
Pfam:Folate_carrier 23 427 3e-167 PFAM
Pfam:MFS_1 66 406 2.6e-13 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000218407
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 98.8%
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 chain of type XVIII collagen. This collagen is one of the multiplexins, extracellular matrix proteins that contain multiple triple-helix domains (collagenous domains) interrupted by non-collagenous domains. A long isoform of the protein has an N-terminal domain that is homologous to the extracellular part of frizzled receptors. Proteolytic processing at several endogenous cleavage sites in the C-terminal domain results in production of endostatin, a potent antiangiogenic protein that is able to inhibit angiogenesis and tumor growth. Mutations in this gene are associated with Knobloch syndrome. The main features of this syndrome involve retinal abnormalities, so type XVIII collagen may play an important role in retinal structure and in neural tube closure. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit defects in hyaloid vessel regression, attenuated visual function, abnormal electroretinograms, broad proximal tubule basement membrane, podocyte effacement, and softened glomeruli. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 81 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Akap13 G A 7: 75,380,213 (GRCm39) R462H probably damaging Het
Ammecr1l T C 18: 31,905,152 (GRCm39) F131S probably damaging Het
Apbb1ip A C 2: 22,709,648 (GRCm39) D35A unknown Het
Arhgap12 A T 18: 6,111,976 (GRCm39) D129E probably benign Het
Arpc1b A G 5: 145,061,492 (GRCm39) D163G probably damaging Het
Atxn7l1 A T 12: 33,396,023 (GRCm39) T251S probably benign Het
Best1 T C 19: 9,969,027 (GRCm39) I230V possibly damaging Het
Brca2 A G 5: 150,483,613 (GRCm39) T2888A possibly damaging Het
Cad T C 5: 31,215,450 (GRCm39) V87A probably damaging Het
Ccdc168 A T 1: 44,099,994 (GRCm39) I368K possibly damaging Het
Ccdc39 C T 3: 33,869,560 (GRCm39) probably null Het
Clcn1 T A 6: 42,284,523 (GRCm39) C548* probably null Het
Col6a6 T C 9: 105,651,987 (GRCm39) N1008S possibly damaging Het
Defb41 A T 1: 18,321,519 (GRCm39) C32S possibly damaging Het
Dnah6 T C 6: 73,072,171 (GRCm39) N2437S probably damaging Het
Drosha T C 15: 12,834,408 (GRCm39) Y171H unknown Het
Ehd1 T C 19: 6,344,613 (GRCm39) L291P probably damaging Het
Eif3c A T 7: 126,147,069 (GRCm39) H734Q possibly damaging Het
Erich5 A T 15: 34,471,502 (GRCm39) T244S probably benign Het
Fam186b T A 15: 99,177,613 (GRCm39) H571L probably benign Het
Fer1l5 A G 1: 36,426,271 (GRCm39) K360E probably benign Het
Fga A T 3: 82,938,158 (GRCm39) I178F probably damaging Het
Gale A T 4: 135,694,987 (GRCm39) T320S probably benign Het
Gm11232 A T 4: 71,675,465 (GRCm39) S99T probably benign Het
Gpr137 C T 19: 6,917,803 (GRCm39) W94* probably null Het
Grm7 T A 6: 111,223,280 (GRCm39) M440K possibly damaging Het
Hacd4 A G 4: 88,353,286 (GRCm39) F69L probably damaging Het
Hdac7 T A 15: 97,706,251 (GRCm39) H304L probably damaging Het
Herc1 T A 9: 66,358,224 (GRCm39) I2435N probably benign Het
Itgb7 G A 15: 102,124,957 (GRCm39) R755W probably damaging Het
Kdm3b G T 18: 34,926,129 (GRCm39) A90S probably benign Het
Mcmdc2 G A 1: 9,981,946 (GRCm39) M1I probably null Het
Mitd1 A G 1: 37,918,639 (GRCm39) probably null Het
Myh10 A T 11: 68,688,235 (GRCm39) Q1232L probably benign Het
Myo1a C A 10: 127,547,027 (GRCm39) N362K probably damaging Het
N4bp1 G A 8: 87,579,789 (GRCm39) T671I probably damaging Het
Nav3 A T 10: 109,659,138 (GRCm39) D826E probably damaging Het
Negr1 C T 3: 156,866,297 (GRCm39) T282M probably damaging Het
Notch1 G A 2: 26,354,917 (GRCm39) H1837Y possibly damaging Het
Or2m12 A T 16: 19,104,851 (GRCm39) V214E probably benign Het
Or52e19b A T 7: 103,032,413 (GRCm39) F265L probably benign Het
Or5m13 T A 2: 85,748,407 (GRCm39) I46N probably damaging Het
Or7e177 A G 9: 20,212,093 (GRCm39) N200S probably benign Het
Pard6a T C 8: 106,428,881 (GRCm39) C47R probably benign Het
Parp2 T C 14: 51,057,247 (GRCm39) probably null Het
Pck1 C A 2: 172,999,064 (GRCm39) A410D probably damaging Het
Pdzph1 G A 17: 59,191,008 (GRCm39) L85F probably damaging Het
Piezo2 A G 18: 63,279,873 (GRCm39) S1P probably damaging Het
Pld1 T A 3: 28,140,025 (GRCm39) V615D probably damaging Het
Plekha7 T G 7: 115,907,164 (GRCm39) I23L probably benign Het
Prkcz T G 4: 155,346,968 (GRCm39) D388A probably damaging Het
Rab36 A G 10: 74,888,335 (GRCm39) R260G probably benign Het
Reln C A 5: 22,209,229 (GRCm39) R1116S probably damaging Het
Rskr A T 11: 78,184,210 (GRCm39) M225L probably benign Het
Rundc3b T G 5: 8,619,505 (GRCm39) K151Q probably damaging Het
Scaf11 A G 15: 96,316,988 (GRCm39) S859P probably damaging Het
Slc25a32 C T 15: 38,963,281 (GRCm39) R180H probably benign Het
Slc4a9 G A 18: 36,665,196 (GRCm39) G443E possibly damaging Het
Slmap T A 14: 26,150,965 (GRCm39) K534N probably damaging Het
Sncaip G A 18: 52,971,088 (GRCm39) A3T probably damaging Het
Spata31d1c G T 13: 65,180,991 (GRCm39) S30I probably damaging Het
Srrm1 A T 4: 135,051,313 (GRCm39) V789E unknown Het
Srrm2 A T 17: 24,027,489 (GRCm39) probably benign Het
St7l T C 3: 104,775,373 (GRCm39) F83S probably damaging Het
Taf15 C T 11: 83,375,678 (GRCm39) Q48* probably null Het
Tek A T 4: 94,687,403 (GRCm39) D172V probably benign Het
Tmem232 T C 17: 65,785,366 (GRCm39) Y198C probably damaging Het
Tns3 A T 11: 8,398,779 (GRCm39) V1191E probably damaging Het
Togaram1 A G 12: 65,067,088 (GRCm39) D1710G probably damaging Het
Trav16d-dv11 T C 14: 53,285,122 (GRCm39) I66T probably benign Het
Ttn T A 2: 76,577,289 (GRCm39) T24535S possibly damaging Het
Ttn A T 2: 76,730,087 (GRCm39) L911* probably null Het
Ube4a A G 9: 44,861,130 (GRCm39) S227P probably damaging Het
Ubqln1 T C 13: 58,339,569 (GRCm39) T352A probably benign Het
Vmn1r174 C T 7: 23,454,182 (GRCm39) P283S probably damaging Het
Vmn1r59 T C 7: 5,457,053 (GRCm39) T236A probably damaging Het
Vmn2r3 T C 3: 64,182,311 (GRCm39) I463V probably benign Het
Wdr95 A G 5: 149,497,461 (GRCm39) D213G probably damaging Het
Zbtb49 T A 5: 38,370,669 (GRCm39) H404L probably damaging Het
Zfp879 A G 11: 50,728,757 (GRCm39) M79T probably benign Het
Zmiz2 G A 11: 6,352,441 (GRCm39) C600Y probably damaging Het
Other mutations in Col18a1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00952:Col18a1 APN 10 76,905,813 (GRCm39) missense possibly damaging 0.93
IGL01023:Col18a1 APN 10 76,906,809 (GRCm39) missense probably damaging 0.98
IGL01304:Col18a1 APN 10 76,911,975 (GRCm39) unclassified probably benign
IGL01519:Col18a1 APN 10 76,895,157 (GRCm39) missense probably damaging 0.99
IGL02217:Col18a1 APN 10 76,889,132 (GRCm39) missense probably damaging 0.96
IGL02275:Col18a1 APN 10 76,895,217 (GRCm39) missense possibly damaging 0.92
IGL02283:Col18a1 APN 10 76,948,943 (GRCm39) missense possibly damaging 0.71
IGL02492:Col18a1 APN 10 76,907,855 (GRCm39) splice site probably benign
IGL02673:Col18a1 APN 10 76,894,997 (GRCm39) missense probably damaging 1.00
IGL02710:Col18a1 APN 10 76,949,146 (GRCm39) missense possibly damaging 0.92
IGL02850:Col18a1 APN 10 76,932,300 (GRCm39) missense probably damaging 0.98
IGL03085:Col18a1 APN 10 76,895,015 (GRCm39) splice site probably benign
IGL03102:Col18a1 APN 10 76,903,457 (GRCm39) splice site probably benign
IGL03139:Col18a1 APN 10 76,949,177 (GRCm39) missense possibly damaging 0.84
IGL03181:Col18a1 APN 10 76,891,532 (GRCm39) missense probably damaging 1.00
IGL03183:Col18a1 APN 10 76,909,588 (GRCm39) missense probably damaging 1.00
R0039:Col18a1 UTSW 10 76,913,002 (GRCm39) missense probably damaging 1.00
R0180:Col18a1 UTSW 10 76,932,351 (GRCm39) missense probably benign 0.33
R0225:Col18a1 UTSW 10 76,924,748 (GRCm39) missense possibly damaging 0.90
R0335:Col18a1 UTSW 10 76,895,197 (GRCm39) missense probably damaging 0.99
R0336:Col18a1 UTSW 10 76,894,570 (GRCm39) missense probably damaging 1.00
R1471:Col18a1 UTSW 10 76,932,040 (GRCm39) missense unknown
R1538:Col18a1 UTSW 10 76,907,170 (GRCm39) missense probably damaging 1.00
R1594:Col18a1 UTSW 10 76,948,870 (GRCm39) missense possibly damaging 0.51
R1631:Col18a1 UTSW 10 76,895,131 (GRCm39) missense probably damaging 0.99
R1774:Col18a1 UTSW 10 76,895,815 (GRCm39) missense probably damaging 0.96
R1934:Col18a1 UTSW 10 76,948,578 (GRCm39) missense possibly damaging 0.73
R1990:Col18a1 UTSW 10 76,916,988 (GRCm39) missense unknown
R1991:Col18a1 UTSW 10 76,916,988 (GRCm39) missense unknown
R1992:Col18a1 UTSW 10 76,916,988 (GRCm39) missense unknown
R2081:Col18a1 UTSW 10 76,890,019 (GRCm39) missense probably damaging 1.00
R2082:Col18a1 UTSW 10 76,895,127 (GRCm39) missense probably damaging 1.00
R2351:Col18a1 UTSW 10 76,948,538 (GRCm39) missense probably benign 0.00
R2510:Col18a1 UTSW 10 76,932,102 (GRCm39) missense unknown
R3076:Col18a1 UTSW 10 76,924,762 (GRCm39) missense possibly damaging 0.57
R3433:Col18a1 UTSW 10 76,932,102 (GRCm39) missense unknown
R3800:Col18a1 UTSW 10 76,903,221 (GRCm39) nonsense probably null
R3918:Col18a1 UTSW 10 76,889,192 (GRCm39) missense probably benign 0.05
R3981:Col18a1 UTSW 10 76,924,721 (GRCm39) missense probably damaging 0.99
R3983:Col18a1 UTSW 10 76,924,721 (GRCm39) missense probably damaging 0.99
R4182:Col18a1 UTSW 10 76,894,675 (GRCm39) splice site probably null
R4239:Col18a1 UTSW 10 76,932,001 (GRCm39) missense unknown
R5014:Col18a1 UTSW 10 76,906,794 (GRCm39) critical splice donor site probably null
R5107:Col18a1 UTSW 10 76,913,057 (GRCm39) critical splice acceptor site probably null
R5413:Col18a1 UTSW 10 76,905,310 (GRCm39) missense probably damaging 1.00
R5503:Col18a1 UTSW 10 76,907,454 (GRCm39) missense probably damaging 1.00
R5524:Col18a1 UTSW 10 76,894,558 (GRCm39) missense probably damaging 1.00
R5772:Col18a1 UTSW 10 77,002,177 (GRCm39) missense unknown
R5958:Col18a1 UTSW 10 76,932,231 (GRCm39) missense probably benign 0.01
R6280:Col18a1 UTSW 10 76,948,323 (GRCm39) intron probably benign
R6309:Col18a1 UTSW 10 76,948,576 (GRCm39) intron probably benign
R6603:Col18a1 UTSW 10 76,899,811 (GRCm39) critical splice donor site probably null
R6608:Col18a1 UTSW 10 76,948,628 (GRCm39) intron probably benign
R6805:Col18a1 UTSW 10 76,890,073 (GRCm39) missense probably damaging 1.00
R6890:Col18a1 UTSW 10 76,949,318 (GRCm39) intron probably benign
R6938:Col18a1 UTSW 10 76,948,333 (GRCm39) intron probably benign
R7002:Col18a1 UTSW 10 77,002,177 (GRCm39) missense unknown
R7154:Col18a1 UTSW 10 76,908,799 (GRCm39) missense probably benign 0.25
R7204:Col18a1 UTSW 10 76,921,110 (GRCm39) missense unknown
R7278:Col18a1 UTSW 10 76,932,118 (GRCm39) missense unknown
R7442:Col18a1 UTSW 10 76,932,072 (GRCm39) missense unknown
R7453:Col18a1 UTSW 10 76,921,044 (GRCm39) splice site probably null
R7597:Col18a1 UTSW 10 76,949,137 (GRCm39) missense unknown
R7615:Col18a1 UTSW 10 76,902,839 (GRCm39) missense probably damaging 1.00
R7671:Col18a1 UTSW 10 76,921,217 (GRCm39) missense unknown
R7696:Col18a1 UTSW 10 76,921,106 (GRCm39) missense unknown
R7719:Col18a1 UTSW 10 76,913,846 (GRCm39) missense probably benign 0.13
R7772:Col18a1 UTSW 10 76,904,220 (GRCm39) splice site probably null
R8077:Col18a1 UTSW 10 76,916,685 (GRCm39) missense unknown
R8085:Col18a1 UTSW 10 76,924,741 (GRCm39) missense unknown
R8097:Col18a1 UTSW 10 76,948,342 (GRCm39) missense unknown
R8117:Col18a1 UTSW 10 76,895,808 (GRCm39) missense probably benign 0.41
R8130:Col18a1 UTSW 10 76,910,284 (GRCm39) missense probably benign 0.03
R8151:Col18a1 UTSW 10 76,948,418 (GRCm39) missense unknown
R8379:Col18a1 UTSW 10 76,889,072 (GRCm39) missense probably benign 0.08
R8479:Col18a1 UTSW 10 76,916,988 (GRCm39) missense unknown
R8862:Col18a1 UTSW 10 76,949,044 (GRCm39) nonsense probably null
R9109:Col18a1 UTSW 10 76,893,204 (GRCm39) missense probably damaging 1.00
R9298:Col18a1 UTSW 10 76,893,204 (GRCm39) missense probably damaging 1.00
R9312:Col18a1 UTSW 10 76,894,606 (GRCm39) missense probably damaging 0.98
R9366:Col18a1 UTSW 10 76,932,258 (GRCm39) missense unknown
R9399:Col18a1 UTSW 10 76,916,584 (GRCm39) missense unknown
R9559:Col18a1 UTSW 10 76,913,630 (GRCm39) missense probably damaging 1.00
R9649:Col18a1 UTSW 10 76,916,673 (GRCm39) missense unknown
R9689:Col18a1 UTSW 10 76,916,578 (GRCm39) nonsense probably null
R9719:Col18a1 UTSW 10 76,949,432 (GRCm39) missense unknown
Z1176:Col18a1 UTSW 10 76,948,685 (GRCm39) missense unknown
Z1176:Col18a1 UTSW 10 76,891,543 (GRCm39) missense possibly damaging 0.81
Z1177:Col18a1 UTSW 10 76,948,672 (GRCm39) missense unknown
Predicted Primers PCR Primer
(F):5'- GCTATGGCTTTGAGGGTACC -3'
(R):5'- ACTCACTGTGATAGGCCCTAC -3'

Sequencing Primer
(F):5'- GGTACCCACAACCTCATTGCTTAG -3'
(R):5'- CCTTGGAGAAGGGACTCTCTATGC -3'
Posted On 2021-01-18