Incidental Mutation 'C9142:Cc2d2a'
ID 164
Institutional Source Beutler Lab
Gene Symbol Cc2d2a
Ensembl Gene ENSMUSG00000039765
Gene Name coiled-coil and C2 domain containing 2A
Synonyms b2b1035Clo, 5730509K17Rik
Accession Numbers
Essential gene? Probably essential (E-score: 0.906) question?
Stock # C9142 (G3) of strain Muskatenwein
Quality Score
Status Validated
Chromosome 5
Chromosomal Location 43819715-43898317 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) A to G at 43892799 bp (GRCm39)
Zygosity Homozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000114349 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000048150] [ENSMUST00000125866]
AlphaFold Q8CFW7
Predicted Effect probably benign
Transcript: ENSMUST00000048150
SMART Domains Protein: ENSMUSP00000048320
Gene: ENSMUSG00000039765

DomainStartEndE-ValueType
low complexity region 26 41 N/A INTRINSIC
low complexity region 58 67 N/A INTRINSIC
low complexity region 124 136 N/A INTRINSIC
low complexity region 203 217 N/A INTRINSIC
coiled coil region 472 501 N/A INTRINSIC
coiled coil region 553 582 N/A INTRINSIC
Pfam:CC2D2AN-C2 645 817 2e-36 PFAM
low complexity region 1005 1017 N/A INTRINSIC
low complexity region 1024 1036 N/A INTRINSIC
C2 1048 1208 3.43e-5 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000125866
SMART Domains Protein: ENSMUSP00000114349
Gene: ENSMUSG00000039765

DomainStartEndE-ValueType
low complexity region 9 18 N/A INTRINSIC
low complexity region 75 87 N/A INTRINSIC
low complexity region 154 168 N/A INTRINSIC
coiled coil region 423 452 N/A INTRINSIC
coiled coil region 504 533 N/A INTRINSIC
Pfam:CC2D2AN-C2 596 768 7.7e-44 PFAM
low complexity region 970 982 N/A INTRINSIC
C2 994 1154 2.3e-7 SMART
Coding Region Coverage
  • 1x: 84.8%
  • 3x: 59.3%
Validation Efficiency 82% (72/88)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a coiled-coil and calcium binding domain protein that appears to play a critical role in cilia formation. Mutations in this gene cause Meckel syndrome type 6, as well as Joubert syndrome type 9. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]
PHENOTYPE: Mice homozygous for a null allele exhibit embryonic lethality with multiorgan defects related to cilia biogenesis. Homozygotes for a gene trap allele show randomized body axis, holoprosencephaly, and microphthalmia. Homozygotes for an ENU-induced allele show heterotaxia, congenital heart anomalies, kidney and eye defects, polydactyly, and cleft palate. [provided by MGI curators]
Allele List at MGI

All alleles(5) : Targeted, other(4) Gene trapped(1)

Other mutations in this stock
Total: 7 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adnp A G 2: 168,026,327 (GRCm39) S323P probably damaging Het
Chrm5 A G 2: 112,310,556 (GRCm39) F187L probably damaging Het
Fmnl3 T C 15: 99,235,508 (GRCm39) probably null Het
Klf7 C T 1: 64,118,316 (GRCm39) A94T possibly damaging Het
Nf1 C T 11: 79,447,557 (GRCm39) R2433C probably damaging Het
Pdlim3 A T 8: 46,349,869 (GRCm39) M60L probably benign Het
Vwde T C 6: 13,168,053 (GRCm39) probably benign Homo
Other mutations in Cc2d2a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00392:Cc2d2a APN 5 43,881,722 (GRCm39) splice site probably benign
IGL00937:Cc2d2a APN 5 43,845,464 (GRCm39) critical splice acceptor site probably null
IGL01322:Cc2d2a APN 5 43,846,345 (GRCm39) missense probably benign 0.00
IGL01349:Cc2d2a APN 5 43,881,126 (GRCm39) missense probably benign 0.01
IGL01448:Cc2d2a APN 5 43,841,527 (GRCm39) missense possibly damaging 0.65
IGL01871:Cc2d2a APN 5 43,846,311 (GRCm39) missense probably damaging 0.98
IGL01947:Cc2d2a APN 5 43,845,579 (GRCm39) missense probably damaging 0.96
IGL01976:Cc2d2a APN 5 43,840,457 (GRCm39) missense probably benign 0.02
IGL02113:Cc2d2a APN 5 43,842,590 (GRCm39) splice site probably null
IGL02364:Cc2d2a APN 5 43,892,792 (GRCm39) missense probably damaging 1.00
IGL02448:Cc2d2a APN 5 43,840,547 (GRCm39) splice site probably benign
IGL02458:Cc2d2a APN 5 43,875,896 (GRCm39) missense probably benign 0.01
IGL02542:Cc2d2a APN 5 43,846,252 (GRCm39) splice site probably benign
IGL02834:Cc2d2a APN 5 43,871,863 (GRCm39) nonsense probably null
IGL02940:Cc2d2a APN 5 43,885,636 (GRCm39) splice site probably null
IGL03003:Cc2d2a APN 5 43,828,608 (GRCm39) missense probably benign 0.22
IGL03183:Cc2d2a APN 5 43,889,721 (GRCm39) missense probably damaging 1.00
P0028:Cc2d2a UTSW 5 43,841,541 (GRCm39) missense probably benign
R0193:Cc2d2a UTSW 5 43,893,460 (GRCm39) missense probably damaging 1.00
R0201:Cc2d2a UTSW 5 43,894,854 (GRCm39) missense probably damaging 1.00
R0211:Cc2d2a UTSW 5 43,845,608 (GRCm39) splice site probably null
R0243:Cc2d2a UTSW 5 43,853,980 (GRCm39) splice site probably benign
R0317:Cc2d2a UTSW 5 43,864,243 (GRCm39) critical splice donor site probably null
R0453:Cc2d2a UTSW 5 43,860,636 (GRCm39) missense probably benign 0.00
R0558:Cc2d2a UTSW 5 43,881,729 (GRCm39) splice site probably benign
R0624:Cc2d2a UTSW 5 43,887,371 (GRCm39) missense probably benign
R0634:Cc2d2a UTSW 5 43,838,723 (GRCm39) splice site probably benign
R1503:Cc2d2a UTSW 5 43,852,581 (GRCm39) missense probably damaging 1.00
R1635:Cc2d2a UTSW 5 43,879,812 (GRCm39) missense probably damaging 1.00
R1686:Cc2d2a UTSW 5 43,896,713 (GRCm39) missense possibly damaging 0.81
R1707:Cc2d2a UTSW 5 43,881,030 (GRCm39) splice site probably null
R1715:Cc2d2a UTSW 5 43,876,003 (GRCm39) missense probably damaging 0.97
R1765:Cc2d2a UTSW 5 43,871,873 (GRCm39) missense probably damaging 0.99
R1794:Cc2d2a UTSW 5 43,845,594 (GRCm39) missense probably damaging 1.00
R1881:Cc2d2a UTSW 5 43,898,170 (GRCm39) missense probably damaging 0.99
R1917:Cc2d2a UTSW 5 43,863,564 (GRCm39) missense probably damaging 1.00
R2005:Cc2d2a UTSW 5 43,883,715 (GRCm39) critical splice donor site probably null
R2201:Cc2d2a UTSW 5 43,841,375 (GRCm39) splice site probably benign
R2244:Cc2d2a UTSW 5 43,889,775 (GRCm39) missense probably damaging 1.00
R2368:Cc2d2a UTSW 5 43,861,230 (GRCm39) missense probably benign
R2442:Cc2d2a UTSW 5 43,828,647 (GRCm39) critical splice donor site probably null
R2511:Cc2d2a UTSW 5 43,892,737 (GRCm39) missense probably damaging 0.99
R3023:Cc2d2a UTSW 5 43,842,593 (GRCm39) splice site probably null
R3147:Cc2d2a UTSW 5 43,866,497 (GRCm39) missense probably damaging 1.00
R3148:Cc2d2a UTSW 5 43,866,497 (GRCm39) missense probably damaging 1.00
R3426:Cc2d2a UTSW 5 43,893,451 (GRCm39) missense probably benign 0.00
R3609:Cc2d2a UTSW 5 43,869,668 (GRCm39) missense probably damaging 0.99
R3610:Cc2d2a UTSW 5 43,869,668 (GRCm39) missense probably damaging 0.99
R3611:Cc2d2a UTSW 5 43,869,668 (GRCm39) missense probably damaging 0.99
R3839:Cc2d2a UTSW 5 43,876,056 (GRCm39) missense probably benign
R3870:Cc2d2a UTSW 5 43,876,033 (GRCm39) nonsense probably null
R4334:Cc2d2a UTSW 5 43,840,476 (GRCm39) missense probably benign 0.00
R4913:Cc2d2a UTSW 5 43,896,665 (GRCm39) missense probably benign 0.12
R5179:Cc2d2a UTSW 5 43,845,563 (GRCm39) missense possibly damaging 0.82
R5315:Cc2d2a UTSW 5 43,877,775 (GRCm39) missense probably damaging 0.99
R5352:Cc2d2a UTSW 5 43,863,555 (GRCm39) missense probably damaging 1.00
R5386:Cc2d2a UTSW 5 43,887,383 (GRCm39) missense probably benign 0.01
R5538:Cc2d2a UTSW 5 43,852,518 (GRCm39) missense possibly damaging 0.94
R5568:Cc2d2a UTSW 5 43,866,433 (GRCm39) missense probably damaging 0.99
R5618:Cc2d2a UTSW 5 43,887,249 (GRCm39) missense probably benign 0.00
R5653:Cc2d2a UTSW 5 43,879,804 (GRCm39) missense possibly damaging 0.81
R5817:Cc2d2a UTSW 5 43,869,760 (GRCm39) missense probably damaging 1.00
R5858:Cc2d2a UTSW 5 43,873,117 (GRCm39) missense probably damaging 1.00
R5905:Cc2d2a UTSW 5 43,869,768 (GRCm39) missense probably benign
R5912:Cc2d2a UTSW 5 43,877,772 (GRCm39) missense probably damaging 0.97
R6073:Cc2d2a UTSW 5 43,887,317 (GRCm39) missense probably damaging 1.00
R6084:Cc2d2a UTSW 5 43,826,015 (GRCm39) missense probably benign
R6142:Cc2d2a UTSW 5 43,860,540 (GRCm39) missense probably damaging 0.97
R6176:Cc2d2a UTSW 5 43,866,455 (GRCm39) missense probably benign 0.32
R6238:Cc2d2a UTSW 5 43,828,577 (GRCm39) missense probably benign 0.11
R6381:Cc2d2a UTSW 5 43,873,118 (GRCm39) missense possibly damaging 0.69
R6404:Cc2d2a UTSW 5 43,861,416 (GRCm39) missense possibly damaging 0.58
R6455:Cc2d2a UTSW 5 43,896,754 (GRCm39) missense possibly damaging 0.69
R6695:Cc2d2a UTSW 5 43,876,019 (GRCm39) missense probably damaging 0.99
R6805:Cc2d2a UTSW 5 43,838,673 (GRCm39) missense probably damaging 1.00
R6919:Cc2d2a UTSW 5 43,860,557 (GRCm39) missense probably benign 0.19
R6970:Cc2d2a UTSW 5 43,875,927 (GRCm39) missense probably damaging 1.00
R7024:Cc2d2a UTSW 5 43,891,271 (GRCm39) missense probably benign 0.10
R7054:Cc2d2a UTSW 5 43,857,321 (GRCm39) nonsense probably null
R7071:Cc2d2a UTSW 5 43,866,455 (GRCm39) missense probably benign 0.13
R7098:Cc2d2a UTSW 5 43,840,481 (GRCm39) missense probably benign 0.00
R7366:Cc2d2a UTSW 5 43,887,332 (GRCm39) missense probably damaging 1.00
R7908:Cc2d2a UTSW 5 43,864,188 (GRCm39) missense probably benign 0.00
R7920:Cc2d2a UTSW 5 43,896,651 (GRCm39) missense probably benign 0.09
R7950:Cc2d2a UTSW 5 43,852,638 (GRCm39) critical splice donor site probably null
R8007:Cc2d2a UTSW 5 43,863,442 (GRCm39) missense possibly damaging 0.71
R8117:Cc2d2a UTSW 5 43,869,781 (GRCm39) missense probably damaging 1.00
R8123:Cc2d2a UTSW 5 43,867,896 (GRCm39) missense probably benign
R8179:Cc2d2a UTSW 5 43,857,295 (GRCm39) missense probably damaging 0.96
R8279:Cc2d2a UTSW 5 43,893,487 (GRCm39) missense probably benign 0.01
R8293:Cc2d2a UTSW 5 43,845,570 (GRCm39) missense probably damaging 0.97
R8480:Cc2d2a UTSW 5 43,842,486 (GRCm39) splice site probably null
R8482:Cc2d2a UTSW 5 43,852,581 (GRCm39) missense probably damaging 1.00
R8731:Cc2d2a UTSW 5 43,892,788 (GRCm39) missense probably damaging 1.00
R8780:Cc2d2a UTSW 5 43,896,692 (GRCm39) missense probably damaging 1.00
R8784:Cc2d2a UTSW 5 43,860,645 (GRCm39) missense possibly damaging 0.90
R8871:Cc2d2a UTSW 5 43,857,285 (GRCm39) missense possibly damaging 0.71
R8972:Cc2d2a UTSW 5 43,867,884 (GRCm39) missense probably benign
R9122:Cc2d2a UTSW 5 43,831,081 (GRCm39) missense probably null 0.07
R9125:Cc2d2a UTSW 5 43,860,563 (GRCm39) missense probably benign
R9203:Cc2d2a UTSW 5 43,891,179 (GRCm39) missense probably benign 0.01
R9310:Cc2d2a UTSW 5 43,852,488 (GRCm39) missense probably damaging 1.00
R9343:Cc2d2a UTSW 5 43,875,999 (GRCm39) missense probably damaging 1.00
R9353:Cc2d2a UTSW 5 43,860,691 (GRCm39) critical splice donor site probably null
Z1177:Cc2d2a UTSW 5 43,860,546 (GRCm39) missense probably benign
Nature of Mutation

DNA sequencing using the SOLiD technique identified an A to G transition at base pair 44126696 in the Genbank genomic region NC_000071 (Build 37.1) for the Cc2d2a gene on Chromosome 5 (GTGAGTATTA ->GTGAGTGTTA). The mutation is located within intron 34, seven nucleotides from the previous exon 34 (from the ATG exon). The Cc2d2a transcript contains 40 total exons. Multiple transcripts of the Cc2d2a gene are displayed on Ensembl. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).

Protein Function and Prediction

The Cc2d2a gene encodes a 1633 amino acid protein that may be involved in cilia formation. CC2D2A contains a C2 domain at amino acids 1068-1180, which is a Ca2+-dependent membrane-targeting module found in many cellular proteins involved in signal transduction or membrane trafficking (Uniprot Q8CFW7). 

Posted On 2010-04-08