Incidental Mutation 'R8079:Chit1'
ID 629171
Institutional Source Beutler Lab
Gene Symbol Chit1
Ensembl Gene ENSMUSG00000026450
Gene Name chitinase 1
Synonyms 2300002L19Rik
Accession Numbers
Essential gene? Probably non essential (E-score: 0.229) question?
Stock # R8079 (G1)
Quality Score 225.009
Status Not validated
Chromosome 1
Chromosomal Location 134038980-134079278 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 134071765 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Alanine at position 92 (T92A)
Ref Sequence ENSEMBL: ENSMUSP00000083666 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000086475] [ENSMUST00000159963] [ENSMUST00000160060]
AlphaFold Q9D7Q1
Predicted Effect possibly damaging
Transcript: ENSMUST00000086475
AA Change: T92A

PolyPhen 2 Score 0.792 (Sensitivity: 0.85; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000083666
Gene: ENSMUSG00000026450
AA Change: T92A

DomainStartEndE-ValueType
signal peptide 1 21 N/A INTRINSIC
Glyco_18 22 361 6.69e-151 SMART
ChtBD2 416 464 5.56e-3 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000159963
AA Change: T92A

PolyPhen 2 Score 0.792 (Sensitivity: 0.85; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000123979
Gene: ENSMUSG00000026450
AA Change: T92A

DomainStartEndE-ValueType
signal peptide 1 21 N/A INTRINSIC
Glyco_18 22 361 6.69e-151 SMART
ChtBD2 416 464 5.56e-3 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000160060
AA Change: T92A

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000124331
Gene: ENSMUSG00000026450
AA Change: T92A

DomainStartEndE-ValueType
signal peptide 1 21 N/A INTRINSIC
Glyco_18 22 354 2.47e-131 SMART
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 99.0%
  • 20x: 96.5%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Chitotriosidase is secreted by activated human macrophages and is markedly elevated in plasma of Gaucher disease patients. The expression of chitotriosidase occurs only at a late stage of differentiation of monocytes to activated macrophages in culture. Human macrophages can synthesize a functional chitotriosidase, a highly conserved enzyme with a strongly regulated expression. This enzyme may play a role in the degradation of chitin-containing pathogens. Several alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Jan 2012]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit reduced pulmonary fibrosis induced by bleomycin or IL13 expression. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 86 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcb9 A G 5: 124,221,186 (GRCm39) I255T possibly damaging Het
Ablim1 A T 19: 57,170,656 (GRCm39) probably null Het
Akap10 G A 11: 61,820,880 (GRCm39) P8L possibly damaging Het
Ankle2 C T 5: 110,379,182 (GRCm39) A27V probably damaging Het
Anxa8 A G 14: 33,816,769 (GRCm39) T246A probably benign Het
Arhgap5 A G 12: 52,613,988 (GRCm39) N1460S probably benign Het
Arid5b T G 10: 67,934,186 (GRCm39) D572A possibly damaging Het
Atrn T A 2: 130,855,561 (GRCm39) L1278Q probably null Het
AU040320 G T 4: 126,725,953 (GRCm39) K454N possibly damaging Het
Baz2b T A 2: 59,731,112 (GRCm39) R2085W probably damaging Het
Bbx A T 16: 50,030,821 (GRCm39) N649K probably damaging Het
BC034090 G A 1: 155,101,032 (GRCm39) P411S probably damaging Het
Calcoco2 A T 11: 95,998,363 (GRCm39) F20Y probably damaging Het
Carmil2 A G 8: 106,413,393 (GRCm39) R50G probably damaging Het
Catspere2 A G 1: 177,874,525 (GRCm39) T131A probably benign Het
Cdcp1 C A 9: 123,002,855 (GRCm39) V739L probably damaging Het
Clstn3 A G 6: 124,436,763 (GRCm39) I185T probably damaging Het
Dctpp1 C A 7: 126,858,561 (GRCm39) V61L probably damaging Het
Dip2a T C 10: 76,123,155 (GRCm39) T760A probably benign Het
Dock10 C T 1: 80,556,421 (GRCm39) V552I probably benign Het
Dpp8 A G 9: 64,951,017 (GRCm39) E151G probably damaging Het
Dvl2 G C 11: 69,898,344 (GRCm39) R367P possibly damaging Het
Fem1b A T 9: 62,703,643 (GRCm39) I539N probably damaging Het
Frat2 A T 19: 41,836,277 (GRCm39) L25H probably damaging Het
Garnl3 A T 2: 32,908,511 (GRCm39) probably null Het
Gh T C 11: 106,192,253 (GRCm39) H47R possibly damaging Het
Glmp T C 3: 88,233,045 (GRCm39) V61A probably damaging Het
Gm9925 T C 18: 74,198,558 (GRCm39) V129A unknown Het
H2-M9 T A 17: 36,953,025 (GRCm39) E94V probably benign Het
Hira A T 16: 18,744,507 (GRCm39) Q408L probably benign Het
Hook3 A G 8: 26,578,086 (GRCm39) probably null Het
Ifi206 G A 1: 173,308,724 (GRCm39) P424L Het
Impdh2 T C 9: 108,440,524 (GRCm39) V270A probably benign Het
Klhl14 A G 18: 21,785,022 (GRCm39) I135T probably benign Het
Klra10 C A 6: 130,252,738 (GRCm39) V179L probably benign Het
Kmt2c T C 5: 25,507,730 (GRCm39) S3236G probably damaging Het
Krt76 G T 15: 101,796,825 (GRCm39) A358D possibly damaging Het
Lacc1 C A 14: 77,266,992 (GRCm39) G424C probably damaging Het
Limch1 A G 5: 67,204,096 (GRCm39) I878V possibly damaging Het
Lipi C T 16: 75,362,418 (GRCm39) probably null Het
Lrrc17 C T 5: 21,766,069 (GRCm39) R184W probably damaging Het
Mllt10 A G 2: 18,128,567 (GRCm39) N183D probably damaging Het
Mterf2 C T 10: 84,956,027 (GRCm39) G199D probably damaging Het
Mucl3 T C 17: 35,949,084 (GRCm39) T172A unknown Het
Nat8f4 A T 6: 85,877,976 (GRCm39) S182R probably benign Het
Ndrg3 C A 2: 156,779,452 (GRCm39) E238* probably null Het
Nop14 A T 5: 34,811,805 (GRCm39) L194H probably damaging Het
Obscn T C 11: 58,972,731 (GRCm39) E2105G possibly damaging Het
Or5b104 A C 19: 13,072,648 (GRCm39) Y121* probably null Het
Or5g9 A T 2: 85,552,387 (GRCm39) T213S probably benign Het
Or7g17 A T 9: 18,768,725 (GRCm39) Y259F possibly damaging Het
Or8k32 T A 2: 86,368,725 (GRCm39) H176L possibly damaging Het
Pbx3 C T 2: 34,068,240 (GRCm39) A320T probably benign Het
Pcdhac2 A T 18: 37,279,197 (GRCm39) S726C probably damaging Het
Pcdhgb2 A G 18: 37,823,816 (GRCm39) D269G probably damaging Het
Pcgf6 A T 19: 47,034,271 (GRCm39) S257T probably damaging Het
Pclo A T 5: 14,590,472 (GRCm39) H924L unknown Het
Per3 T A 4: 151,127,135 (GRCm39) T129S possibly damaging Het
Pi4ka A T 16: 17,120,924 (GRCm39) M1270K Het
Plec G A 15: 76,063,750 (GRCm39) Q2277* probably null Het
Pnma1 T A 12: 84,194,109 (GRCm39) K198M probably damaging Het
Prc1 T A 7: 79,954,515 (GRCm39) F196L possibly damaging Het
Prkcz T C 4: 155,441,962 (GRCm39) T57A probably damaging Het
Repin1 G T 6: 48,574,279 (GRCm39) E403* probably null Het
Robo4 A G 9: 37,313,931 (GRCm39) M61V possibly damaging Het
Rps12 C T 10: 23,661,575 (GRCm39) V79I probably benign Het
Rsph3a A G 17: 8,198,020 (GRCm39) K466E probably benign Het
Scly A T 1: 91,236,089 (GRCm39) I168F probably damaging Het
Setd1a T A 7: 127,384,225 (GRCm39) F359I unknown Het
Sh3tc1 A G 5: 35,864,201 (GRCm39) L662P possibly damaging Het
Slc12a5 T C 2: 164,834,372 (GRCm39) W798R probably damaging Het
Slc16a6 C T 11: 109,364,281 (GRCm39) R13Q unknown Het
Slco1a8 T G 6: 141,933,460 (GRCm39) M462L probably benign Het
Smarcad1 A G 6: 65,029,766 (GRCm39) D118G possibly damaging Het
Sos2 T C 12: 69,653,989 (GRCm39) T788A probably damaging Het
Syvn1 A G 19: 6,098,396 (GRCm39) E75G probably null Het
Thpo T C 16: 20,545,144 (GRCm39) E103G probably benign Het
Trav7d-3 A T 14: 52,982,193 (GRCm39) E78V possibly damaging Het
Uap1 A G 1: 169,986,332 (GRCm39) S217P probably damaging Het
Unc45a T G 7: 79,981,310 (GRCm39) R497S probably damaging Het
Upf1 A G 8: 70,791,534 (GRCm39) probably null Het
Usp47 A T 7: 111,646,177 (GRCm39) K28M probably damaging Het
Wdr72 A C 9: 74,126,054 (GRCm39) T1062P probably damaging Het
Wnt7b A T 15: 85,421,646 (GRCm39) C339S probably damaging Het
Zfp954 G T 7: 7,118,470 (GRCm39) T358K probably benign Het
Zmynd15 G T 11: 70,350,278 (GRCm39) probably benign Het
Other mutations in Chit1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00927:Chit1 APN 1 134,072,992 (GRCm39) missense probably damaging 1.00
IGL01344:Chit1 APN 1 134,079,052 (GRCm39) missense probably damaging 1.00
IGL01352:Chit1 APN 1 134,076,228 (GRCm39) missense probably damaging 1.00
IGL01620:Chit1 APN 1 134,078,257 (GRCm39) missense probably damaging 1.00
IGL01795:Chit1 APN 1 134,076,167 (GRCm39) missense probably damaging 1.00
IGL01924:Chit1 APN 1 134,077,148 (GRCm39) missense probably benign 0.05
IGL02000:Chit1 APN 1 134,074,413 (GRCm39) missense probably benign 0.01
IGL02891:Chit1 APN 1 134,073,048 (GRCm39) missense probably benign 0.38
Debt UTSW 1 134,077,163 (GRCm39) missense probably null 1.00
R0790:Chit1 UTSW 1 134,066,490 (GRCm39) missense probably benign 0.00
R0838:Chit1 UTSW 1 134,071,075 (GRCm39) nonsense probably null
R1783:Chit1 UTSW 1 134,077,133 (GRCm39) missense probably benign 0.03
R1783:Chit1 UTSW 1 134,077,132 (GRCm39) missense possibly damaging 0.67
R1784:Chit1 UTSW 1 134,077,132 (GRCm39) missense possibly damaging 0.67
R1863:Chit1 UTSW 1 134,078,988 (GRCm39) missense probably damaging 0.96
R1940:Chit1 UTSW 1 134,073,156 (GRCm39) critical splice donor site probably null
R1950:Chit1 UTSW 1 134,078,968 (GRCm39) missense probably damaging 1.00
R2045:Chit1 UTSW 1 134,078,882 (GRCm39) missense probably benign 0.05
R2260:Chit1 UTSW 1 134,078,865 (GRCm39) missense probably benign
R4552:Chit1 UTSW 1 134,071,789 (GRCm39) missense probably benign 0.17
R5386:Chit1 UTSW 1 134,077,192 (GRCm39) missense probably damaging 1.00
R5975:Chit1 UTSW 1 134,074,364 (GRCm39) missense probably damaging 1.00
R6134:Chit1 UTSW 1 134,071,798 (GRCm39) missense possibly damaging 0.94
R6196:Chit1 UTSW 1 134,074,381 (GRCm39) nonsense probably null
R6482:Chit1 UTSW 1 134,070,980 (GRCm39) missense probably damaging 0.98
R6923:Chit1 UTSW 1 134,077,163 (GRCm39) missense probably null 1.00
R6952:Chit1 UTSW 1 134,071,022 (GRCm39) missense probably damaging 1.00
R7022:Chit1 UTSW 1 134,079,030 (GRCm39) missense probably benign 0.44
R7198:Chit1 UTSW 1 134,078,229 (GRCm39) missense possibly damaging 0.87
R8278:Chit1 UTSW 1 134,078,332 (GRCm39) missense probably benign 0.00
R8672:Chit1 UTSW 1 134,079,005 (GRCm39) missense unknown
Predicted Primers PCR Primer
(F):5'- ATGTCACCCACAAAGTCTTTCC -3'
(R):5'- GCCATTGTACCCTGTTGAGG -3'

Sequencing Primer
(F):5'- AAAGTCTTTCCTCTCCAGATCTGCAG -3'
(R):5'- TCTAGAACCAGAGGGAAAAGCC -3'
Posted On 2020-06-30