Incidental Mutation 'R2231:Spag1'
ID 240055
Institutional Source Beutler Lab
Gene Symbol Spag1
Ensembl Gene ENSMUSG00000037617
Gene Name sperm associated antigen 1
Synonyms TPR-containing protein involved in spermatogenesis, tpis
MMRRC Submission 040232-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.799) question?
Stock # R2231 (G1)
Quality Score 225
Status Not validated
Chromosome 15
Chromosomal Location 36178245-36235767 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 36191313 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Cysteine at position 180 (Y180C)
Ref Sequence ENSEMBL: ENSMUSP00000132233 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000047348] [ENSMUST00000171205]
AlphaFold Q80ZX8
Predicted Effect probably benign
Transcript: ENSMUST00000047348
AA Change: Y180C

PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000047335
Gene: ENSMUSG00000037617
AA Change: Y180C

DomainStartEndE-ValueType
TPR 213 246 1.88e0 SMART
TPR 247 279 3.47e-4 SMART
TPR 280 313 8.23e-6 SMART
low complexity region 383 400 N/A INTRINSIC
TPR 430 463 5.92e1 SMART
TPR 472 505 2.49e-5 SMART
TPR 506 539 5.31e0 SMART
TPR 606 639 7.63e-1 SMART
TPR 640 673 1.38e-7 SMART
Pfam:RPAP3_C 777 869 1.7e-18 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000171205
AA Change: Y180C

PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000132233
Gene: ENSMUSG00000037617
AA Change: Y180C

DomainStartEndE-ValueType
TPR 213 246 1.88e0 SMART
TPR 247 279 3.47e-4 SMART
TPR 280 313 8.23e-6 SMART
low complexity region 383 400 N/A INTRINSIC
TPR 430 463 5.92e1 SMART
TPR 472 505 2.49e-5 SMART
TPR 506 539 5.31e0 SMART
TPR 606 639 7.63e-1 SMART
TPR 640 673 1.38e-7 SMART
Pfam:RPAP3_C 777 869 1.7e-18 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000227436
Predicted Effect noncoding transcript
Transcript: ENSMUST00000227524
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 97.2%
  • 20x: 94.7%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The correlation of anti-sperm antibodies with cases of unexplained infertility implicates a role for these antibodies in blocking fertilization. Improved diagnosis and treatment of immunologic infertility, as well as identification of proteins for targeted contraception, are dependent on the identification and characterization of relevant sperm antigens. The protein expressed by this gene is recognized by anti-sperm agglutinating antibodies from an infertile woman. Furthermore, immunization of female rats with the recombinant human protein reduced fertility. This protein localizes to the plasma membrane of germ cells in the testis and to the post-acrosomal plasma membrane of mature spermatozoa. Recombinant polypeptide binds GTP and exhibits GTPase activity. Thus, this protein may regulate GTP signal transduction pathways involved in spermatogenesis and fertilization. Two transcript variants of this gene encode the same protein. [provided by RefSeq, Jul 2008]
Allele List at MGI
Other mutations in this stock
Total: 43 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Actr1b G A 1: 36,739,440 (GRCm39) R336W probably damaging Het
Alkbh6 G A 7: 30,012,015 (GRCm39) probably null Het
Ankrd63 A G 2: 118,533,846 (GRCm39) probably benign Het
Arsa T C 15: 89,359,925 (GRCm39) M1V probably null Het
Cblb T A 16: 52,014,635 (GRCm39) S895T probably benign Het
Cdk8 A T 5: 146,168,414 (GRCm39) probably benign Het
Coch G A 12: 51,649,648 (GRCm39) V320I probably benign Het
Cyp2c68 T A 19: 39,687,804 (GRCm39) S398C probably benign Het
Cyp2e1 T C 7: 140,344,827 (GRCm39) S98P probably damaging Het
Dnah5 G A 15: 28,408,563 (GRCm39) probably null Het
Eif2b5 T C 16: 20,323,520 (GRCm39) Y424H probably benign Het
Enoph1 C T 5: 100,188,136 (GRCm39) T20I probably damaging Het
Entpd7 T C 19: 43,710,255 (GRCm39) V304A probably benign Het
Fam227a T A 15: 79,499,582 (GRCm39) Y591F possibly damaging Het
Gal3st1 T C 11: 3,948,282 (GRCm39) I163T probably benign Het
Kif21a G A 15: 90,869,565 (GRCm39) Q429* probably null Het
L1cam T A X: 72,904,947 (GRCm39) N503I possibly damaging Het
Myl3 T C 9: 110,596,979 (GRCm39) L113P probably damaging Het
Nup153 A G 13: 46,863,103 (GRCm39) probably null Het
Oaz3 T C 3: 94,341,846 (GRCm39) T130A probably benign Het
Or4c3d A T 2: 89,882,569 (GRCm39) F33Y probably benign Het
Or5b12b A G 19: 12,861,313 (GRCm39) I23V probably benign Het
Pacs2 G A 12: 113,026,987 (GRCm39) D605N probably damaging Het
Pdk3 G T X: 92,857,604 (GRCm39) N59K probably damaging Het
Piezo2 A T 18: 63,278,143 (GRCm39) C254S probably damaging Het
Plekhd1 T C 12: 80,768,725 (GRCm39) F403L possibly damaging Het
Pou5f1 A G 17: 35,820,959 (GRCm39) T134A probably benign Het
Ppp3r1 G A 11: 17,143,115 (GRCm39) G68R probably damaging Het
Prr5 T C 15: 84,586,981 (GRCm39) S244P probably benign Het
Sacs A G 14: 61,443,378 (GRCm39) probably null Het
Sbno1 A T 5: 124,543,767 (GRCm39) D257E probably damaging Het
Scn10a T C 9: 119,462,916 (GRCm39) E1040G possibly damaging Het
Sgce T C 6: 4,730,066 (GRCm39) K53E probably benign Het
Slc6a11 A G 6: 114,171,590 (GRCm39) T254A probably damaging Het
Ssna1 G T 2: 25,162,019 (GRCm39) N58K possibly damaging Het
Tbx3 C A 5: 119,815,589 (GRCm39) N296K probably damaging Het
Tcerg1 A G 18: 42,657,309 (GRCm39) T264A unknown Het
Trdmt1 A T 2: 13,530,436 (GRCm39) F82I probably damaging Het
Ttn A T 2: 76,774,497 (GRCm39) F2136L probably damaging Het
Usb1 T G 8: 96,070,674 (GRCm39) L200R probably damaging Het
Usp33 C T 3: 152,079,023 (GRCm39) A425V probably benign Het
Zfp92 G T X: 72,466,358 (GRCm39) L450F possibly damaging Het
Zw10 C T 9: 48,975,421 (GRCm39) T282M possibly damaging Het
Other mutations in Spag1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00161:Spag1 APN 15 36,195,562 (GRCm39) nonsense probably null
IGL00465:Spag1 APN 15 36,183,967 (GRCm39) unclassified probably benign
IGL00694:Spag1 APN 15 36,227,317 (GRCm39) missense possibly damaging 0.94
IGL01479:Spag1 APN 15 36,233,345 (GRCm39) splice site probably benign
IGL01830:Spag1 APN 15 36,221,705 (GRCm39) missense probably benign 0.01
IGL02072:Spag1 APN 15 36,190,658 (GRCm39) missense probably damaging 1.00
IGL02232:Spag1 APN 15 36,221,710 (GRCm39) missense probably benign 0.00
IGL02727:Spag1 APN 15 36,234,964 (GRCm39) missense probably damaging 1.00
IGL02810:Spag1 APN 15 36,234,693 (GRCm39) missense probably damaging 1.00
IGL03010:Spag1 APN 15 36,233,419 (GRCm39) missense probably benign 0.15
IGL03069:Spag1 APN 15 36,224,245 (GRCm39) splice site probably benign
IGL03244:Spag1 APN 15 36,234,529 (GRCm39) missense probably benign 0.00
FR4737:Spag1 UTSW 15 36,197,879 (GRCm39) critical splice acceptor site probably benign
R0863:Spag1 UTSW 15 36,192,193 (GRCm39) missense probably damaging 1.00
R1177:Spag1 UTSW 15 36,234,913 (GRCm39) missense probably benign 0.21
R1878:Spag1 UTSW 15 36,181,916 (GRCm39) missense probably damaging 1.00
R1879:Spag1 UTSW 15 36,181,916 (GRCm39) missense probably damaging 1.00
R2086:Spag1 UTSW 15 36,227,287 (GRCm39) missense probably damaging 0.98
R2093:Spag1 UTSW 15 36,224,276 (GRCm39) missense probably damaging 1.00
R4030:Spag1 UTSW 15 36,234,447 (GRCm39) missense probably damaging 0.99
R4893:Spag1 UTSW 15 36,197,992 (GRCm39) critical splice donor site probably null
R5047:Spag1 UTSW 15 36,195,588 (GRCm39) missense probably damaging 1.00
R5505:Spag1 UTSW 15 36,234,772 (GRCm39) missense probably damaging 0.99
R5741:Spag1 UTSW 15 36,183,849 (GRCm39) missense possibly damaging 0.79
R5805:Spag1 UTSW 15 36,200,430 (GRCm39) missense probably damaging 1.00
R6221:Spag1 UTSW 15 36,197,949 (GRCm39) missense probably benign 0.30
R6236:Spag1 UTSW 15 36,211,281 (GRCm39) missense probably damaging 1.00
R6556:Spag1 UTSW 15 36,195,553 (GRCm39) missense probably damaging 1.00
R6800:Spag1 UTSW 15 36,197,895 (GRCm39) nonsense probably null
R7737:Spag1 UTSW 15 36,210,856 (GRCm39) missense probably benign 0.01
R8397:Spag1 UTSW 15 36,197,895 (GRCm39) nonsense probably null
R9164:Spag1 UTSW 15 36,216,399 (GRCm39) missense probably damaging 1.00
R9486:Spag1 UTSW 15 36,181,954 (GRCm39) missense probably damaging 1.00
R9711:Spag1 UTSW 15 36,190,683 (GRCm39) critical splice donor site probably null
R9773:Spag1 UTSW 15 36,234,711 (GRCm39) missense probably benign 0.33
Z1177:Spag1 UTSW 15 36,186,822 (GRCm39) missense probably benign 0.00
Predicted Primers PCR Primer
(F):5'- GCCTGATACATCAAGGGTCTC -3'
(R):5'- GTAGTCAACTCAGTCCAAAAGC -3'

Sequencing Primer
(F):5'- CGCTCTATAGACCAGGCGATATTTG -3'
(R):5'- GTCCAAAAGCCTATAAATGTTCATGG -3'
Posted On 2014-10-15