Incidental Mutation 'R4369:Cfb'
ID 325933
Institutional Source Beutler Lab
Gene Symbol Cfb
Ensembl Gene ENSMUSG00000090231
Gene Name complement factor B
Synonyms FB, alternative-complement pathway C3/C5 convertase, B, Factor B, Bf, H2-Bf
MMRRC Submission 041116-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R4369 (G1)
Quality Score 225
Status Not validated
Chromosome 17
Chromosomal Location 35075350-35081492 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 35079290 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Lysine to Arginine at position 287 (K287R)
Ref Sequence ENSEMBL: ENSMUSP00000120990 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000025229] [ENSMUST00000025230] [ENSMUST00000097343] [ENSMUST00000128767] [ENSMUST00000176203] [ENSMUST00000146299] [ENSMUST00000154526] [ENSMUST00000153400] [ENSMUST00000148431] [ENSMUST00000165953] [ENSMUST00000173357] [ENSMUST00000152417]
AlphaFold P04186
Predicted Effect probably damaging
Transcript: ENSMUST00000025229
AA Change: K289R

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000025229
Gene: ENSMUSG00000090231
AA Change: K289R

DomainStartEndE-ValueType
low complexity region 8 23 N/A INTRINSIC
CCP 36 88 5.15e-1 SMART
CCP 102 157 4.62e-15 SMART
CCP 164 217 2.06e-12 SMART
VWA 267 472 1.07e-40 SMART
Tryp_SPc 480 751 2.53e-30 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000025230
SMART Domains Protein: ENSMUSP00000025230
Gene: ENSMUSG00000024371

DomainStartEndE-ValueType
signal peptide 1 18 N/A INTRINSIC
Blast:CCP 22 71 8e-24 BLAST
low complexity region 72 83 N/A INTRINSIC
CCP 94 149 1.34e-11 SMART
CCP 156 210 1.89e-11 SMART
Blast:VWA 219 245 1e-7 BLAST
VWA 259 464 1.32e-31 SMART
Tryp_SPc 468 747 4.43e-26 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000097343
SMART Domains Protein: ENSMUSP00000094956
Gene: ENSMUSG00000024369

DomainStartEndE-ValueType
coiled coil region 7 36 N/A INTRINSIC
low complexity region 147 167 N/A INTRINSIC
low complexity region 184 239 N/A INTRINSIC
RRM 259 324 7.25e-12 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000127795
Predicted Effect probably damaging
Transcript: ENSMUST00000128767
AA Change: K287R

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000119977
Gene: ENSMUSG00000090231
AA Change: K287R

DomainStartEndE-ValueType
low complexity region 6 21 N/A INTRINSIC
CCP 34 86 5.15e-1 SMART
CCP 100 155 4.62e-15 SMART
CCP 162 215 2.06e-12 SMART
VWA 265 470 1.07e-40 SMART
Tryp_SPc 478 749 2.53e-30 SMART
Predicted Effect unknown
Transcript: ENSMUST00000129891
AA Change: K496R
SMART Domains Protein: ENSMUSP00000120864
Gene: ENSMUSG00000092511
AA Change: K496R

DomainStartEndE-ValueType
Blast:VWA 2 77 8e-7 BLAST
Tryp_SPc 85 365 5.69e-8 SMART
CCP 310 365 4.62e-15 SMART
CCP 372 425 2.06e-12 SMART
VWA 475 680 1.07e-40 SMART
Tryp_SPc 688 959 2.53e-30 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000133127
SMART Domains Protein: ENSMUSP00000118360
Gene: ENSMUSG00000090231

DomainStartEndE-ValueType
PDB:2WIN|L 2 43 2e-20 PDB
Blast:VWA 13 44 9e-11 BLAST
Predicted Effect probably damaging
Transcript: ENSMUST00000176203
AA Change: K289R

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000135660
Gene: ENSMUSG00000090231
AA Change: K289R

DomainStartEndE-ValueType
low complexity region 8 23 N/A INTRINSIC
CCP 36 88 5.15e-1 SMART
CCP 102 157 4.62e-15 SMART
CCP 164 217 2.06e-12 SMART
VWA 267 472 1.07e-40 SMART
Tryp_SPc 480 713 5.03e-5 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000146299
AA Change: K802R

PolyPhen 2 Score 0.204 (Sensitivity: 0.92; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000117677
Gene: ENSMUSG00000092511
AA Change: K802R

DomainStartEndE-ValueType
signal peptide 1 18 N/A INTRINSIC
low complexity region 72 83 N/A INTRINSIC
CCP 94 148 1.89e-11 SMART
VWA 103 311 1.74e-1 SMART
Tryp_SPc 315 547 1.49e-7 SMART
CCP 549 601 5.15e-1 SMART
CCP 615 670 4.62e-15 SMART
CCP 677 730 2.06e-12 SMART
VWA 780 985 1.07e-40 SMART
Tryp_SPc 993 1264 2.53e-30 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000154526
AA Change: K287R

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000120990
Gene: ENSMUSG00000090231
AA Change: K287R

DomainStartEndE-ValueType
low complexity region 6 21 N/A INTRINSIC
CCP 34 86 5.15e-1 SMART
CCP 100 155 4.62e-15 SMART
CCP 162 215 2.06e-12 SMART
VWA 265 470 1.07e-40 SMART
Tryp_SPc 478 711 5.03e-5 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000184774
Predicted Effect probably benign
Transcript: ENSMUST00000153400
SMART Domains Protein: ENSMUSP00000116497
Gene: ENSMUSG00000090231

DomainStartEndE-ValueType
Tryp_SPc 1 217 2.36e-5 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000148431
SMART Domains Protein: ENSMUSP00000120009
Gene: ENSMUSG00000024371

DomainStartEndE-ValueType
VWA 33 187 2.33e0 SMART
Tryp_SPc 191 470 4.43e-26 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000165953
SMART Domains Protein: ENSMUSP00000131195
Gene: ENSMUSG00000024369

DomainStartEndE-ValueType
coiled coil region 7 36 N/A INTRINSIC
low complexity region 147 167 N/A INTRINSIC
low complexity region 184 239 N/A INTRINSIC
RRM 259 324 7.25e-12 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000173357
SMART Domains Protein: ENSMUSP00000134272
Gene: ENSMUSG00000024369

DomainStartEndE-ValueType
coiled coil region 7 36 N/A INTRINSIC
low complexity region 147 167 N/A INTRINSIC
low complexity region 184 239 N/A INTRINSIC
RRM 259 324 7.25e-12 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000134300
SMART Domains Protein: ENSMUSP00000114241
Gene: ENSMUSG00000024371

DomainStartEndE-ValueType
Tryp_SPc 3 148 6.48e-4 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000152417
SMART Domains Protein: ENSMUSP00000123536
Gene: ENSMUSG00000024371

DomainStartEndE-ValueType
low complexity region 4 13 N/A INTRINSIC
CCP 19 73 1.89e-11 SMART
Blast:VWA 82 108 2e-7 BLAST
VWA 122 327 1.32e-31 SMART
Tryp_SPc 331 610 4.43e-26 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000141295
SMART Domains Protein: ENSMUSP00000118945
Gene: ENSMUSG00000090231

DomainStartEndE-ValueType
Tryp_SPc 18 258 3.76e-7 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000176332
Meta Mutation Damage Score 0.2458 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.1%
  • 20x: 94.7%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes complement factor B, a component of the alternative pathway of complement activation. Factor B circulates in the blood as a single chain polypeptide. Upon activation of the alternative pathway, it is cleaved by complement factor D yielding the noncatalytic chain Ba and the catalytic subunit Bb. The active subunit Bb is a serine protease which associates with C3b to form the alternative pathway C3 convertase. Bb is involved in the proliferation of preactivated B lymphocytes, while Ba inhibits their proliferation. This gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. This cluster includes several genes involved in regulation of the immune reaction. Polymorphisms in this gene are associated with a reduced risk of age-related macular degeneration. The polyadenylation site of this gene is 421 bp from the 5' end of the gene for complement component 2. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygotes for targeted null mutations lack the alternative complement pathway, and have reduced overall complement activity. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 48 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
5730596B20Rik A T 6: 52,156,042 (GRCm39) probably benign Het
A730018C14Rik T C 12: 112,382,048 (GRCm39) noncoding transcript Het
Abcc1 T G 16: 14,278,857 (GRCm39) S1056A possibly damaging Het
Akr1c19 A T 13: 4,283,779 (GRCm39) K4* probably null Het
Amph T A 13: 19,321,870 (GRCm39) S516R probably benign Het
Apoh T C 11: 108,288,205 (GRCm39) F108L probably damaging Het
Arg2 T C 12: 79,196,746 (GRCm39) S156P probably damaging Het
AU018091 A T 7: 3,207,815 (GRCm39) L582* probably null Het
Bckdk C T 7: 127,505,591 (GRCm39) A238V probably benign Het
Bean1 T A 8: 104,943,742 (GRCm39) V275D probably damaging Het
Brpf3 C T 17: 29,055,594 (GRCm39) A1181V probably damaging Het
Cpd T C 11: 76,688,537 (GRCm39) N912D possibly damaging Het
Cyp4f14 T C 17: 33,128,232 (GRCm39) N261S probably benign Het
Dennd3 T C 15: 73,412,658 (GRCm39) I440T probably damaging Het
Dhx38 C T 8: 110,279,763 (GRCm39) V976I probably damaging Het
Dpep2 T G 8: 106,711,707 (GRCm39) L573F probably benign Het
Ebag9 T C 15: 44,491,865 (GRCm39) S86P probably benign Het
Epha1 T C 6: 42,342,391 (GRCm39) Y319C probably damaging Het
Eps8l3 T C 3: 107,798,330 (GRCm39) Y466H possibly damaging Het
Ercc6 A G 14: 32,239,164 (GRCm39) E84G probably damaging Het
Ffar1 A G 7: 30,560,033 (GRCm39) I288T probably benign Het
Flnb C T 14: 7,942,216 (GRCm38) T2398I probably benign Het
Galnt15 T C 14: 31,751,496 (GRCm39) F16S possibly damaging Het
Golgb1 A G 16: 36,737,269 (GRCm39) E2172G probably damaging Het
Lhx4 T A 1: 155,580,560 (GRCm39) H161L probably benign Het
Lrp1 T C 10: 127,386,155 (GRCm39) N3457S possibly damaging Het
Map7d1 A T 4: 126,128,866 (GRCm39) S436T probably damaging Het
Nmral1 T C 16: 4,532,394 (GRCm39) Y139C probably damaging Het
Noc2l A G 4: 156,321,853 (GRCm39) D84G possibly damaging Het
Or2a25 T A 6: 42,889,211 (GRCm39) Y251* probably null Het
Or5p79 C T 7: 108,221,096 (GRCm39) L26F probably benign Het
Osbpl11 T C 16: 33,045,018 (GRCm39) S386P probably damaging Het
Papss2 A G 19: 32,618,791 (GRCm39) H283R probably damaging Het
Pcdha11 T C 18: 37,139,796 (GRCm39) V475A possibly damaging Het
Pglyrp3 T C 3: 91,935,386 (GRCm39) I212T probably damaging Het
Pkhd1l1 C T 15: 44,368,949 (GRCm39) R865W probably benign Het
Prdm9 T C 17: 15,764,708 (GRCm39) T691A probably benign Het
Rnf121 T C 7: 101,673,313 (GRCm39) D206G probably benign Het
Rnf122 T A 8: 31,602,177 (GRCm39) M1K probably null Het
Shank2 T C 7: 143,733,518 (GRCm39) S22P probably damaging Het
Smg6 C T 11: 74,823,269 (GRCm39) R175* probably null Het
Speer3 C G 5: 13,846,394 (GRCm39) A238G possibly damaging Het
Thsd7a C T 6: 12,468,907 (GRCm39) C557Y probably damaging Het
Tiam2 A G 17: 3,464,242 (GRCm39) probably benign Het
Trgv4 T C 13: 19,369,567 (GRCm39) Y104H probably benign Het
Ttn C T 2: 76,594,345 (GRCm39) W18788* probably null Het
Vmn2r82 A T 10: 79,231,914 (GRCm39) I638F probably benign Het
Zswim6 A G 13: 107,863,229 (GRCm39) noncoding transcript Het
Other mutations in Cfb
AlleleSourceChrCoordTypePredicted EffectPPH Score
R0270:Cfb UTSW 17 35,079,362 (GRCm39) missense possibly damaging 0.92
R0419:Cfb UTSW 17 35,077,485 (GRCm39) missense probably damaging 1.00
R0514:Cfb UTSW 17 35,079,874 (GRCm39) missense probably damaging 1.00
R0645:Cfb UTSW 17 35,078,992 (GRCm39) missense probably benign 0.25
R0668:Cfb UTSW 17 35,076,079 (GRCm39) missense probably benign 0.29
R0893:Cfb UTSW 17 35,077,031 (GRCm39) missense probably damaging 1.00
R1879:Cfb UTSW 17 35,079,536 (GRCm39) missense probably benign 0.11
R2135:Cfb UTSW 17 35,076,254 (GRCm39) missense possibly damaging 0.84
R3107:Cfb UTSW 17 35,080,800 (GRCm39) missense possibly damaging 0.88
R4291:Cfb UTSW 17 35,080,114 (GRCm39) missense possibly damaging 0.95
R4371:Cfb UTSW 17 35,079,290 (GRCm39) missense probably damaging 1.00
R4616:Cfb UTSW 17 35,078,044 (GRCm39) missense probably benign 0.29
R5177:Cfb UTSW 17 35,078,002 (GRCm39) missense probably damaging 1.00
R5689:Cfb UTSW 17 35,080,770 (GRCm39) missense probably benign 0.00
R5773:Cfb UTSW 17 35,076,248 (GRCm39) nonsense probably null
R6046:Cfb UTSW 17 35,081,078 (GRCm39) splice site probably null
R6274:Cfb UTSW 17 35,081,069 (GRCm39) missense probably benign 0.18
R6318:Cfb UTSW 17 35,080,800 (GRCm39) missense possibly damaging 0.88
R7035:Cfb UTSW 17 35,079,007 (GRCm39) missense possibly damaging 0.53
R7585:Cfb UTSW 17 35,076,737 (GRCm39) missense probably benign 0.00
R7920:Cfb UTSW 17 35,079,867 (GRCm39) missense probably benign 0.00
R8312:Cfb UTSW 17 35,077,121 (GRCm39) missense probably benign 0.11
R8465:Cfb UTSW 17 35,076,290 (GRCm39) nonsense probably null
R9452:Cfb UTSW 17 35,078,084 (GRCm39) missense probably benign
RF005:Cfb UTSW 17 35,077,022 (GRCm39) missense possibly damaging 0.76
Predicted Primers PCR Primer
(F):5'- TGGTGGGTAGTCAACACTCCTG -3'
(R):5'- GGCACAGCCCAGGTTAGAATAC -3'

Sequencing Primer
(F):5'- TGTTGAGACAGGGAAGAGGCTG -3'
(R):5'- CAGCCCAGGTTAGAATACAAGGAG -3'
Posted On 2015-07-06