Mutagenetix > Incidental Mutation

Incidental Mutation 'R6026:Tenm2'

480054

Institutional Source

Beutler Lab

Gene Symbol

Tenm2

Ensembl Gene

ENSMUSG00000049336

Gene Name

teneurin transmembrane protein 2

Synonyms

2610040L17Rik, 9330187F13Rik, D3Bwg1534e, Ten-m2, Odz2

MMRRC Submission

044198-MU

Accession Numbers

Essential gene?

Possibly essential (E-score: 0.583) question?

Stock #

R6026 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

36006656-37235964 bp(-) (GRCm38)

Type of Mutation

critical splice donor site (1 bp from exon)

DNA Base Change (assembly)

C to T at 36072729 bp (GRCm38)

Zygosity

Heterozygous

Amino Acid Change

Ref Sequence

ENSEMBL: ENSMUSP00000129951 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000057207] [ENSMUST00000102801] [ENSMUST00000163524]

AlphaFold

no structure available at present

Predicted Effect

probably null
Transcript: ENSMUST00000057207

SMART Domains

Protein: ENSMUSP00000052014
Gene: ENSMUSG00000049336

Domain	Start	End	E-Value	Type
Pfam:Ten_N	10	374	4.9e-177	PFAM
transmembrane domain	375	397	N/A	INTRINSIC
EGF	575	603	5.62e0	SMART
EGF_like	606	634	4.93e1	SMART
EGF	639	668	1.76e1	SMART
EGF	671	700	1.43e-1	SMART
EGF	705	735	1.2e1	SMART
EGF	738	766	9.63e0	SMART
EGF	769	797	1.25e1	SMART
EGF	800	832	1.4e0	SMART
low complexity region	1459	1475	N/A	INTRINSIC
low complexity region	2219	2230	N/A	INTRINSIC
Pfam:Tox-GHH	2681	2758	1.4e-34	PFAM

Predicted Effect

probably null
Transcript: ENSMUST00000102801

SMART Domains

Protein: ENSMUSP00000099865
Gene: ENSMUSG00000049336

Domain	Start	End	E-Value	Type
Pfam:Ten_N	9	374	2e-186	PFAM
transmembrane domain	375	397	N/A	INTRINSIC
EGF	575	603	5.62e0	SMART
EGF_like	606	634	4.93e1	SMART
EGF	639	668	1.76e1	SMART
EGF	671	700	1.43e-1	SMART
EGF	705	735	1.2e1	SMART
EGF	737	765	9.63e0	SMART
EGF	768	796	1.25e1	SMART
EGF	799	831	1.4e0	SMART
low complexity region	1458	1474	N/A	INTRINSIC
low complexity region	2218	2229	N/A	INTRINSIC
Pfam:Tox-GHH	2679	2757	2e-34	PFAM

Predicted Effect

probably null
Transcript: ENSMUST00000163524

SMART Domains

Protein: ENSMUSP00000129951
Gene: ENSMUSG00000049336

Domain	Start	End	E-Value	Type
Pfam:Ten_N	9	374	2e-186	PFAM
transmembrane domain	375	397	N/A	INTRINSIC
EGF	575	603	5.62e0	SMART
EGF_like	606	634	4.93e1	SMART
EGF	639	668	1.76e1	SMART
EGF	671	700	1.43e-1	SMART
EGF	705	735	1.2e1	SMART
EGF	737	765	9.63e0	SMART
EGF	768	796	1.25e1	SMART
EGF	799	831	1.4e0	SMART
low complexity region	1458	1474	N/A	INTRINSIC
low complexity region	2218	2229	N/A	INTRINSIC
Pfam:Tox-GHH	2679	2757	2e-34	PFAM

Meta Mutation Damage Score

0.9500

Coding Region Coverage

1x: 99.9%
3x: 99.6%
10x: 97.9%
20x: 93.5%

Validation Efficiency

97% (73/75)

MGI Phenotype

PHENOTYPE: Mice homozygous for a null allele show abnormalities in the laterality and mapping of ipsilateral retinal projections that lead to loss of ipsilateral drive, defects in binocular vision, and impaired performance on a visual discrimination task. [provided by MGI curators]

Allele List at MGI

Other mutations in this stock

Total: 74 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
1810065E05Rik	A	G	11: 58,425,755	D187G	probably benign	Het
4933421I07Rik	A	T	7: 42,446,284	M180K	probably benign	Het
Aatk	T	C	11: 120,012,364	H345R	possibly damaging	Het
Abcc8	T	C	7: 46,167,000	T239A	probably benign	Het
Abcf3	A	G	16: 20,550,570	E234G	probably damaging	Het
Actrt2	T	C	4: 154,666,590	D363G	possibly damaging	Het
Adam1a	A	T	5: 121,519,362	C623S	probably damaging	Het
Afg3l2	G	T	18: 67,421,259	L458M	probably damaging	Het
Ash1l	T	C	3: 88,985,019	Y1402H	probably damaging	Het
Barhl2	T	A	5: 106,455,608	K228N	probably benign	Het
Blvrb	A	G	7: 27,462,690	H153R	probably damaging	Het
Capn9	A	G	8: 124,605,862	D480G	probably damaging	Het
Cct3	T	C	3: 88,311,722	I182T	possibly damaging	Het
Clasp2	A	G	9: 113,911,578	N1208D	probably benign	Het
Col26a1	A	G	5: 136,847,500	C89R	probably damaging	Het
Cops4	T	A	5: 100,542,328		probably benign	Het
Cpox	T	A	16: 58,670,935	W170R	probably damaging	Het
Ddx27	A	G	2: 167,033,640	K656E	probably benign	Het
Eif4e	T	C	3: 138,550,900	I66T	probably damaging	Het
Ercc3	T	C	18: 32,245,921		probably null	Het
Esp38	G	A	17: 39,955,141	C47Y	probably damaging	Het
Fancd2	T	C	6: 113,551,770	V380A	possibly damaging	Het
Fbxw7	T	A	3: 84,952,641		probably null	Het
Fryl	T	G	5: 73,099,997	R736S	probably benign	Het
Gad2	G	A	2: 22,623,736	V62M	probably benign	Het
Gigyf2	A	G	1: 87,440,732	T1045A	probably damaging	Het
Gm13090	T	A	4: 151,090,700	L78*	probably null	Het
Gm19410	G	A	8: 35,812,426	S1815N	probably benign	Het
Gm28051	A	T	12: 102,720,185	L72Q	unknown	Het
Gm44511	T	C	6: 128,820,277	T83A	possibly damaging	Het
Grk2	C	T	19: 4,290,783	V246I	probably damaging	Het
Grm7	C	T	6: 111,501,539	Q62*	probably null	Het
Gsdmc3	T	A	15: 63,866,751	E154V	probably damaging	Het
Gstz1	A	C	12: 87,160,174	Q114P	probably damaging	Het
Hax1	GTCATCATCATCATCATC	GTCATCATCATCATCATCATC	3: 89,997,940		probably benign	Het
Hhip	A	T	8: 79,972,440	C666S	probably damaging	Het
Hif1a	A	C	12: 73,932,281	H193P	probably damaging	Het
Hyal2	A	G	9: 107,572,199	T385A	probably benign	Het
Ihh	T	C	1: 74,946,727	T200A	probably benign	Het
Iqgap3	T	A	3: 88,090,171	V218E	probably damaging	Het
Lct	A	G	1: 128,300,018	I1246T	probably benign	Het
Lmo7	T	C	14: 101,880,990	V217A	probably benign	Het
Lrp1	C	T	10: 127,573,403	D1616N	probably damaging	Het
Lrrfip2	A	T	9: 111,214,171	T165S	probably damaging	Het
Morc2b	A	G	17: 33,137,983	Y272H	possibly damaging	Het
Muc16	A	G	9: 18,659,858	M455T	unknown	Het
Ncapg2	A	T	12: 116,443,021	D939V	possibly damaging	Het
Ncbp3	T	C	11: 73,067,722	V236A	probably benign	Het
Obscn	T	A	11: 59,067,090	T3595S	probably damaging	Het
Odf2l	T	C	3: 145,149,036	S545P	possibly damaging	Het
Olfr410	T	A	11: 74,335,088	I48F	probably damaging	Het
Olfr883	ATTGCTGTTT	ATTGCTGTTTGCTGTTT	9: 38,026,540		probably null	Het
Pdzrn3	A	C	6: 101,362,144	C269G	probably benign	Het
Pear1	T	A	3: 87,756,913	N278Y	probably damaging	Het
Phb	C	T	11: 95,671,419	R41*	probably null	Het
Pikfyve	T	C	1: 65,272,697	V2031A	probably damaging	Het
Plxna2	A	G	1: 194,799,814	I1465V	probably damaging	Het
Ppp6r2	A	G	15: 89,282,910	N776S	probably benign	Het
Prkce	A	T	17: 86,493,230	E358V	probably benign	Het
Prl5a1	A	T	13: 28,151,264	I219F	probably benign	Het
Prss3	T	C	6: 41,377,554		probably null	Het
Ptprc	A	T	1: 138,071,249	M858K	probably damaging	Het
Retreg3	T	C	11: 101,106,400	T85A	probably damaging	Het
Rfc2	T	A	5: 134,595,331	C265S	probably damaging	Het
Smarcd1	G	T	15: 99,705,738	V256L	probably damaging	Het
Stat5a	T	C	11: 100,880,316	F574L	probably damaging	Het
Tcirg1	T	C	19: 3,897,487	H624R	probably benign	Het
Tcstv1	C	A	13: 119,894,451		probably benign	Het
Tomm40	A	G	7: 19,710,964	V164A	probably benign	Het
Txnl4a	T	C	18: 80,207,267	V26A	probably damaging	Het
Ugt2a3	A	T	5: 87,336,477	F229L	probably benign	Het
Utp20	T	C	10: 88,768,679	T1785A	probably benign	Het
Vmn1r22	T	A	6: 57,900,405	I196L	probably benign	Het
Zfp652	T	G	11: 95,749,962	C238G	possibly damaging	Het

Other mutations in Tenm2

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00161:Tenm2	APN	11	36206899	splice site	probably benign
IGL00834:Tenm2	APN	11	36024258	missense	probably damaging	1.00
IGL00911:Tenm2	APN	11	36008733	nonsense	probably null
IGL00937:Tenm2	APN	11	36024623	missense	probably damaging	1.00
IGL01154:Tenm2	APN	11	36041544	missense	probably damaging	1.00
IGL01313:Tenm2	APN	11	36024248	missense	probably damaging	0.98
IGL01346:Tenm2	APN	11	36027405	nonsense	probably null
IGL01539:Tenm2	APN	11	36106827	missense	possibly damaging	0.89
IGL01629:Tenm2	APN	11	36864884	missense	probably damaging	0.98
IGL01780:Tenm2	APN	11	36046941	missense	probably benign
IGL01821:Tenm2	APN	11	36023883	missense	probably damaging	0.98
IGL01988:Tenm2	APN	11	36027251	missense	probably damaging	1.00
IGL02002:Tenm2	APN	11	36207095	missense	probably benign
IGL02449:Tenm2	APN	11	36023622	missense	probably damaging	0.99
IGL02505:Tenm2	APN	11	36051916	nonsense	probably null
IGL02649:Tenm2	APN	11	36207085	missense	possibly damaging	0.85
IGL02688:Tenm2	APN	11	36068458	missense	probably benign	0.05
IGL02801:Tenm2	APN	11	36047030	nonsense	probably null
IGL02928:Tenm2	APN	11	36027170	missense	possibly damaging	0.69
IGL02940:Tenm2	APN	11	36041644	missense	probably damaging	1.00
IGL03202:Tenm2	APN	11	36024548	missense	probably damaging	1.00
IGL03213:Tenm2	APN	11	36023330	missense	probably benign	0.05
IGL03276:Tenm2	APN	11	36072776	missense	possibly damaging	0.95
IGL03296:Tenm2	APN	11	36052025	splice site	probably null
IGL03381:Tenm2	APN	11	36068411	missense	probably benign	0.01
IGL03398:Tenm2	APN	11	36024543	missense	probably damaging	1.00
browser	UTSW	11	36046765	critical splice donor site	probably null
mosaic	UTSW	11	36063775	critical splice donor site	probably null
IGL02799:Tenm2	UTSW	11	36273408	missense	probably damaging	1.00
PIT4260001:Tenm2	UTSW	11	36163730	missense	probably damaging	1.00
PIT4382001:Tenm2	UTSW	11	36063902	missense	probably damaging	0.99
R0004:Tenm2	UTSW	11	36023357	missense	probably damaging	1.00
R0420:Tenm2	UTSW	11	36207124	splice site	probably benign
R0537:Tenm2	UTSW	11	36163730	missense	probably damaging	1.00
R0599:Tenm2	UTSW	11	36024780	missense	possibly damaging	0.93
R0636:Tenm2	UTSW	11	36943976	missense	probably damaging	1.00
R0693:Tenm2	UTSW	11	36024809	missense	probably damaging	1.00
R0991:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R0992:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1167:Tenm2	UTSW	11	36864684	missense	probably benign	0.30
R1177:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1178:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1179:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1180:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1181:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1193:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1194:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1195:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1195:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1195:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1259:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1265:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1267:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1268:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1269:Tenm2	UTSW	11	36008358	missense	possibly damaging	0.64
R1270:Tenm2	UTSW	11	36041659	missense	probably damaging	1.00
R1272:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1273:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1311:Tenm2	UTSW	11	36068594	splice site	probably benign
R1374:Tenm2	UTSW	11	36008454	missense	probably benign	0.00
R1542:Tenm2	UTSW	11	36300220	missense	probably damaging	0.99
R1573:Tenm2	UTSW	11	36047069	missense	probably damaging	1.00
R1579:Tenm2	UTSW	11	36106783	missense	probably damaging	1.00
R1697:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1722:Tenm2	UTSW	11	36008103	missense	probably damaging	1.00
R1756:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1793:Tenm2	UTSW	11	36023382	missense	probably damaging	0.99
R1950:Tenm2	UTSW	11	36063177	missense	possibly damaging	0.94
R1954:Tenm2	UTSW	11	36047547	missense	possibly damaging	0.87
R2025:Tenm2	UTSW	11	36047264	nonsense	probably null
R2117:Tenm2	UTSW	11	36024854	missense	probably damaging	1.00
R2244:Tenm2	UTSW	11	36864862	missense	probably damaging	0.98
R2298:Tenm2	UTSW	11	36046777	missense	possibly damaging	0.62
R2432:Tenm2	UTSW	11	36027191	missense	probably damaging	1.00
R3014:Tenm2	UTSW	11	36023973	missense	probably damaging	1.00
R3115:Tenm2	UTSW	11	36023366	missense	probably damaging	1.00
R3684:Tenm2	UTSW	11	36051817	missense	probably benign	0.00
R3685:Tenm2	UTSW	11	36051817	missense	probably benign	0.00
R3705:Tenm2	UTSW	11	36068326	missense	probably damaging	0.97
R3820:Tenm2	UTSW	11	36024320	missense	probably damaging	0.98
R3821:Tenm2	UTSW	11	36024320	missense	probably damaging	0.98
R3822:Tenm2	UTSW	11	36024320	missense	probably damaging	0.98
R3844:Tenm2	UTSW	11	36047538	missense	probably damaging	0.98
R3878:Tenm2	UTSW	11	36139574	critical splice donor site	probably null
R4019:Tenm2	UTSW	11	36047074	missense	probably benign	0.04
R4062:Tenm2	UTSW	11	36008655	missense	probably damaging	1.00
R4367:Tenm2	UTSW	11	36027398	missense	probably benign
R4395:Tenm2	UTSW	11	36024624	missense	probably benign	0.23
R4508:Tenm2	UTSW	11	36008345	missense	possibly damaging	0.82
R4534:Tenm2	UTSW	11	36063104	missense	possibly damaging	0.64
R4539:Tenm2	UTSW	11	36046780	missense	probably damaging	1.00
R4644:Tenm2	UTSW	11	36047136	missense	probably benign	0.00
R4661:Tenm2	UTSW	11	36024448	missense	probably damaging	0.99
R4669:Tenm2	UTSW	11	36010487	missense	probably damaging	1.00
R4687:Tenm2	UTSW	11	36049097	missense	probably benign
R4711:Tenm2	UTSW	11	36300212	missense	probably damaging	0.98
R4816:Tenm2	UTSW	11	36027290	missense	probably damaging	1.00
R4843:Tenm2	UTSW	11	36024020	missense	probably damaging	1.00
R4850:Tenm2	UTSW	11	36023488	nonsense	probably null
R4870:Tenm2	UTSW	11	36078569	missense	probably damaging	1.00
R5058:Tenm2	UTSW	11	36207080	missense	possibly damaging	0.80
R5071:Tenm2	UTSW	11	36068381	missense	probably damaging	0.99
R5073:Tenm2	UTSW	11	36068381	missense	probably damaging	0.99
R5074:Tenm2	UTSW	11	36068381	missense	probably damaging	0.99
R5081:Tenm2	UTSW	11	36024633	missense	possibly damaging	0.95
R5093:Tenm2	UTSW	11	36944162	missense	probably damaging	1.00
R5170:Tenm2	UTSW	11	36024806	missense	probably damaging	0.98
R5253:Tenm2	UTSW	11	36047201	nonsense	probably null
R5343:Tenm2	UTSW	11	36069503	missense	probably benign	0.00
R5493:Tenm2	UTSW	11	36864676	missense	probably benign	0.01
R5600:Tenm2	UTSW	11	36163714	splice site	probably null
R5677:Tenm2	UTSW	11	36141683	missense	probably damaging	0.98
R5703:Tenm2	UTSW	11	36023799	missense	probably benign	0.34
R5707:Tenm2	UTSW	11	36047182	missense	possibly damaging	0.79
R6063:Tenm2	UTSW	11	36163717	critical splice donor site	probably null
R6086:Tenm2	UTSW	11	36008646	missense	possibly damaging	0.64
R6151:Tenm2	UTSW	11	36008783	missense	probably damaging	1.00
R6169:Tenm2	UTSW	11	36139690	missense	probably damaging	0.99
R6193:Tenm2	UTSW	11	36046794	missense	probably damaging	1.00
R6405:Tenm2	UTSW	11	36864859	missense	probably benign	0.44
R6477:Tenm2	UTSW	11	36010507	critical splice acceptor site	probably null
R6607:Tenm2	UTSW	11	36063775	critical splice donor site	probably null
R6668:Tenm2	UTSW	11	36046765	critical splice donor site	probably null
R6825:Tenm2	UTSW	11	36046884	missense	probably benign	0.02
R6885:Tenm2	UTSW	11	36023580	missense	possibly damaging	0.95
R7017:Tenm2	UTSW	11	36171409	missense	probably damaging	0.98
R7115:Tenm2	UTSW	11	36163817	missense	probably damaging	0.99
R7153:Tenm2	UTSW	11	36024182	missense	probably damaging	0.98
R7173:Tenm2	UTSW	11	36041551	missense	probably damaging	0.99
R7199:Tenm2	UTSW	11	36171436	missense	probably damaging	1.00
R7205:Tenm2	UTSW	11	36049129	missense	probably damaging	0.99
R7250:Tenm2	UTSW	11	36072798	missense	probably damaging	1.00
R7290:Tenm2	UTSW	11	36023471	missense	probably damaging	1.00
R7366:Tenm2	UTSW	11	36069414	missense	probably benign	0.09
R7432:Tenm2	UTSW	11	36864941	missense	probably benign
R7504:Tenm2	UTSW	11	36139743	missense	probably damaging	1.00
R7513:Tenm2	UTSW	11	36051900	missense	probably benign	0.34
R7523:Tenm2	UTSW	11	36078581	splice site	probably null
R7527:Tenm2	UTSW	11	36206976	missense	probably damaging	1.00
R7648:Tenm2	UTSW	11	36106736	missense	probably damaging	1.00
R7653:Tenm2	UTSW	11	36047347	missense	probably benign	0.09
R7717:Tenm2	UTSW	11	36864935	missense	probably damaging	0.97
R7739:Tenm2	UTSW	11	36069561	missense	possibly damaging	0.50
R7762:Tenm2	UTSW	11	36023306	missense	possibly damaging	0.74
R7786:Tenm2	UTSW	11	36010449	missense	probably damaging	0.99
R7803:Tenm2	UTSW	11	36047116	missense	probably damaging	0.98
R7834:Tenm2	UTSW	11	36024854	missense	probably damaging	1.00
R7838:Tenm2	UTSW	11	36106799	missense	probably benign	0.02
R8073:Tenm2	UTSW	11	36139644	missense	possibly damaging	0.56
R8076:Tenm2	UTSW	11	36027221	missense	probably benign	0.23
R8109:Tenm2	UTSW	11	36008310	missense	probably benign
R8306:Tenm2	UTSW	11	36069369	missense	possibly damaging	0.52
R8352:Tenm2	UTSW	11	36023601	missense	probably damaging	0.98
R8452:Tenm2	UTSW	11	36023601	missense	probably damaging	0.98
R8864:Tenm2	UTSW	11	36027195	missense	possibly damaging	0.95
R8880:Tenm2	UTSW	11	36051961	missense	probably damaging	0.99
R8943:Tenm2	UTSW	11	36944034	missense	probably damaging	0.98
R8969:Tenm2	UTSW	11	36051861	missense	probably damaging	0.99
R9168:Tenm2	UTSW	11	36039895	missense	probably damaging	1.00
R9279:Tenm2	UTSW	11	36068476	missense	probably benign	0.00
R9294:Tenm2	UTSW	11	36024500	missense	probably damaging	0.98
R9320:Tenm2	UTSW	11	36023647	missense	probably damaging	0.99
R9373:Tenm2	UTSW	11	36039886	missense	probably damaging	1.00
R9408:Tenm2	UTSW	11	36069419	missense	probably damaging	1.00
R9410:Tenm2	UTSW	11	36141569	missense	probably damaging	0.99
R9454:Tenm2	UTSW	11	36221459	missense	probably benign
R9489:Tenm2	UTSW	11	36943964	missense	probably damaging	0.99
R9711:Tenm2	UTSW	11	36024514	missense	probably damaging	0.99
RF021:Tenm2	UTSW	11	36024203	missense	possibly damaging	0.95
X0018:Tenm2	UTSW	11	36024200	missense	probably damaging	1.00
X0063:Tenm2	UTSW	11	36024730	missense	probably benign
Z1088:Tenm2	UTSW	11	36273267	missense	probably damaging	1.00
Z1177:Tenm2	UTSW	11	36008234	missense	possibly damaging	0.95
Z1177:Tenm2	UTSW	11	36300335	missense	probably damaging	0.98
Z1177:Tenm2	UTSW	11	36385130	missense	probably benign	0.01

Predicted Primers

PCR Primer
(F):5'- AGCCACCTTGAATCACTGTCC -3'
(R):5'- CACAGCAAGGCTCTTATCTCTG -3'

Sequencing Primer
(F):5'- TCTGGTTAGAATGTCACATCCACAGC -3'
(R):5'- ACAGCAAGGCTCTTATCTCTGTTTCC -3'

Posted On

2017-06-26