Incidental Mutation 'R1990:Col18a1'
ID 224943
Institutional Source Beutler Lab
Gene Symbol Col18a1
Ensembl Gene ENSMUSG00000001435
Gene Name collagen, type XVIII, alpha 1
Synonyms endostatin
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R1990 (G1)
Quality Score 225
Status Not validated
Chromosome 10
Chromosomal Location 76888013-77002351 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 76916988 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 114 (I114V)
Ref Sequence ENSEMBL: ENSMUSP00000122580 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000072755] [ENSMUST00000081654] [ENSMUST00000105409] [ENSMUST00000156009]
AlphaFold no structure available at present
Predicted Effect unknown
Transcript: ENSMUST00000072755
AA Change: I783V
SMART Domains Protein: ENSMUSP00000072538
Gene: ENSMUSG00000001435
AA Change: I783V

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 unknown
Transcript: ENSMUST00000081654
AA Change: I324V
SMART Domains Protein: ENSMUSP00000080358
Gene: ENSMUSG00000001435
AA Change: I324V

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 unknown
Transcript: ENSMUST00000105409
AA Change: I536V
SMART Domains Protein: ENSMUSP00000101049
Gene: ENSMUSG00000001435
AA Change: I536V

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 unknown
Transcript: ENSMUST00000156009
AA Change: I114V
SMART Domains Protein: ENSMUSP00000122580
Gene: ENSMUSG00000001435
AA Change: I114V

DomainStartEndE-ValueType
low complexity region 30 46 N/A INTRINSIC
low complexity region 50 65 N/A INTRINSIC
low complexity region 70 82 N/A INTRINSIC
low complexity region 120 161 N/A INTRINSIC
Meta Mutation Damage Score 0.0869 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.7%
  • 20x: 93.5%
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: 97 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1110002E22Rik C T 3: 137,771,419 (GRCm39) R203* probably null Het
Acp6 T C 3: 97,083,054 (GRCm39) L355P probably damaging Het
Aebp2 T C 6: 140,579,464 (GRCm39) S234P probably damaging Het
Anapc7 A G 5: 122,577,567 (GRCm39) D374G probably benign Het
Apob A T 12: 8,051,039 (GRCm39) I1088F probably damaging Het
Arid4b T C 13: 14,307,021 (GRCm39) V92A probably damaging Het
Armc3 T C 2: 19,297,953 (GRCm39) Y575H probably damaging Het
Asxl2 G T 12: 3,534,558 (GRCm39) G252* probably null Het
Atl1 A T 12: 70,010,102 (GRCm39) K556M probably damaging Het
AU018091 A G 7: 3,212,104 (GRCm39) V206A probably benign Het
Bcas1 A T 2: 170,212,397 (GRCm39) D383E possibly damaging Het
Bmx A G X: 163,015,192 (GRCm39) W257R probably benign Het
Bpifb6 T C 2: 153,747,270 (GRCm39) probably null Het
Cacna1b G A 2: 24,622,318 (GRCm39) P222L probably damaging Het
Cand1 A G 10: 119,045,972 (GRCm39) S978P probably damaging Het
Cap2 T A 13: 46,791,357 (GRCm39) Y175N possibly damaging Het
Caps2 G A 10: 112,036,591 (GRCm39) A384T probably benign Het
Catsperg2 A T 7: 29,420,470 (GRCm39) Y223* probably null Het
Cd81 G T 7: 142,620,938 (GRCm39) G206* probably null Het
Cd84 A G 1: 171,700,317 (GRCm39) T145A possibly damaging Het
Cdkn2aip G T 8: 48,165,211 (GRCm39) N167K probably benign Het
Ceacam14 T A 7: 17,549,290 (GRCm39) L227* probably null Het
Ceacam5 A T 7: 17,491,805 (GRCm39) D725V probably damaging Het
Cldn34a A T X: 151,346,841 (GRCm39) H171L probably benign Het
Cp A G 3: 20,033,177 (GRCm39) D667G probably damaging Het
Cr2 G A 1: 194,836,458 (GRCm39) P1278S possibly damaging Het
Crat A G 2: 30,295,060 (GRCm39) Y452H possibly damaging Het
Cyp4f13 T A 17: 33,144,542 (GRCm39) H318L probably damaging Het
Dab1 C T 4: 104,588,948 (GRCm39) A524V probably benign Het
Dmbt1 A G 7: 130,660,018 (GRCm39) N527S probably damaging Het
Fcgbpl1 A T 7: 27,853,785 (GRCm39) D1583V probably damaging Het
Fgb G T 3: 82,951,560 (GRCm39) Y256* probably null Het
Frmd3 T A 4: 74,105,676 (GRCm39) S441T probably damaging Het
Glp1r T A 17: 31,149,722 (GRCm39) C329S possibly damaging Het
Gm14190 G T 11: 99,581,431 (GRCm39) Q46K unknown Het
Golt1b T A 6: 142,338,080 (GRCm39) F17Y probably damaging Het
Gsdmc A G 15: 63,673,748 (GRCm39) I179T probably benign Het
Gsdmc2 T A 15: 63,700,086 (GRCm39) M229L probably benign Het
Gulp1 A C 1: 44,805,274 (GRCm39) N121T possibly damaging Het
Ift122 T A 6: 115,901,328 (GRCm39) F1037I probably damaging Het
Ildr1 A T 16: 36,536,568 (GRCm39) Y199F probably damaging Het
Ints2 T A 11: 86,139,760 (GRCm39) H278L possibly damaging Het
Invs T C 4: 48,392,599 (GRCm39) V271A possibly damaging Het
Kcnj2 T C 11: 110,963,709 (GRCm39) I367T probably benign Het
Kif21b T C 1: 136,089,508 (GRCm39) S1115P probably damaging Het
Lce1k A T 3: 92,714,125 (GRCm39) C20S unknown Het
Lcmt2 C A 2: 120,970,762 (GRCm39) R107L probably benign Het
Letm1 A AG 5: 33,926,859 (GRCm39) probably null Het
Lrrc9 A C 12: 72,544,635 (GRCm39) R71S probably damaging Het
Mcc C A 18: 44,624,382 (GRCm39) E213* probably null Het
Mis18bp1 T C 12: 65,205,468 (GRCm39) T235A probably benign Het
Mta2 C T 19: 8,919,696 (GRCm39) probably benign Het
Nebl T A 2: 17,457,321 (GRCm39) I80F probably damaging Het
Nek10 A G 14: 14,860,764 (GRCm38) T467A probably benign Het
Nexn A T 3: 151,958,576 (GRCm39) F106I probably damaging Het
Nrdc T A 4: 108,896,972 (GRCm39) Y282* probably null Het
Nxf3 G A X: 134,976,583 (GRCm39) P380S possibly damaging Het
Oma1 C T 4: 103,178,971 (GRCm39) T208I probably damaging Het
Or1a1 T C 11: 74,086,989 (GRCm39) V220A probably damaging Het
Or4c31 A G 2: 88,291,686 (GRCm39) M1V probably null Het
Or4d10c C A 19: 12,065,620 (GRCm39) V179F probably damaging Het
Or4p21 A G 2: 88,277,033 (GRCm39) L83P probably damaging Het
Or51a42 A T 7: 103,708,335 (GRCm39) I158N possibly damaging Het
Or52l1 A T 7: 104,830,221 (GRCm39) C115S probably damaging Het
Or5p66 C A 7: 107,885,566 (GRCm39) G256* probably null Het
Or5p70 A G 7: 107,995,041 (GRCm39) Y238C probably benign Het
Panx2 A T 15: 88,953,941 (GRCm39) Y632F possibly damaging Het
Pdia4 T C 6: 47,773,589 (GRCm39) T587A probably benign Het
Piezo2 A T 18: 63,207,733 (GRCm39) L1426Q probably null Het
Pigk T A 3: 152,450,131 (GRCm39) Y212N probably damaging Het
Pramel22 T A 4: 143,380,838 (GRCm39) Y395F probably damaging Het
Prl3b1 C T 13: 27,429,775 (GRCm39) T71I possibly damaging Het
Rab3gap1 A G 1: 127,870,166 (GRCm39) E929G possibly damaging Het
Rabl3 T C 16: 37,384,079 (GRCm39) I162T probably benign Het
Rasgrf2 T A 13: 92,172,473 (GRCm39) T188S probably damaging Het
Slc12a2 A G 18: 58,043,358 (GRCm39) I601V possibly damaging Het
Slc25a42 A T 8: 70,644,519 (GRCm39) I60N probably benign Het
Slc2a3 C T 6: 122,713,694 (GRCm39) G173S probably damaging Het
Slc46a3 G A 5: 147,823,404 (GRCm39) T146M probably damaging Het
Specc1 C A 11: 61,920,120 (GRCm39) P7T possibly damaging Het
Sptbn4 T C 7: 27,123,235 (GRCm39) D229G probably benign Het
Sspo T C 6: 48,427,984 (GRCm39) I154T probably benign Het
Stx5a T C 19: 8,726,254 (GRCm39) probably null Het
Stxbp6 A T 12: 44,902,640 (GRCm39) C210* probably null Het
Tagap1 C T 17: 7,224,285 (GRCm39) R137Q probably benign Het
Tbc1d9 A G 8: 83,997,932 (GRCm39) Y1163C probably damaging Het
Tex14 T G 11: 87,440,296 (GRCm39) L1367R probably damaging Het
Tnnt3 C T 7: 142,065,262 (GRCm39) R131C possibly damaging Het
Tpx2 T A 2: 152,732,544 (GRCm39) M606K probably benign Het
Trim46 A T 3: 89,145,008 (GRCm39) Y489N probably damaging Het
Ttc28 C T 5: 111,424,188 (GRCm39) S1485L probably benign Het
Txnl1 T C 18: 63,812,585 (GRCm39) T70A probably benign Het
Unc80 T C 1: 66,731,708 (GRCm39) L3053P probably damaging Het
Wars1 G T 12: 108,854,359 (GRCm39) N18K possibly damaging Het
Wnt8a A G 18: 34,677,937 (GRCm39) D115G probably damaging Het
Xndc1 T A 7: 101,722,398 (GRCm39) V21E probably damaging Het
Zfp493 T A 13: 67,934,388 (GRCm39) C114S 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
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
R8523:Col18a1 UTSW 10 76,890,068 (GRCm39) missense probably damaging 0.99
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'- AGCAGTTCAGCAGGGTATGG -3'
(R):5'- AAAGACAGGTGGCCATTCC -3'

Sequencing Primer
(F):5'- TTCAGCAGGGTATGGAGGGAG -3'
(R):5'- AGACAGGTGGCCATTCCCATAG -3'
Posted On 2014-08-25