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UniProtKB/Swiss-Prot O14896: Variant p.Val274Ile

Interferon regulatory factor 6
Gene: IRF6
Variant information

Variant position:  274
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Polymorphism
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  From Valine (V) to Isoleucine (I) at position 274 (V274I, p.Val274Ile).
Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.

Physico-chemical properties:  Similar physico-chemical property. Both residues are medium size and hydrophobic.
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  3
The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Variant description:  Common polymorphism; 3% in European-descended and 22% in Asian populations; responsible for 12% of the genetic contribution to cleft lip or palate; tripled the risk of recurrence in families that already had 1 affected child.
Any additional useful information about the variant.

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  274
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  467
The length of the canonical sequence.

Location on the sequence:   GDLGPMPDQEELFGPVSLEQ  V KFPGPEHITNEKQKLFTSKL
The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.

Residue conservation: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         GDLGPMPDQEELFGPVSLEQVKFPGPEHITNEKQKLFTSKL

Mouse                         GDLGPMPDQEELFGPVSLEQVKFPGPEHITNEKQKLFTSKL

Bovine                        GDLGPMPDQEELFGPVSLEQVKFPGPEHITNEKQKLFTSKL

Sequence annotation in neighborhood:  
The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.

TypePositionsDescription
Chain 1 – 467 Interferon regulatory factor 6


Literature citations

Homo sapiens interferon regulatory factor 6 (IRF6) gene sequence from Hakka population in Guangdong Province, South China.
Wang H.; Wu W.; Hua L.; Li F.; Chen Y.; Cui Y.;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANT ILE-274;

Complete sequencing and characterization of 21,243 full-length human cDNAs.
Ota T.; Suzuki Y.; Nishikawa T.; Otsuki T.; Sugiyama T.; Irie R.; Wakamatsu A.; Hayashi K.; Sato H.; Nagai K.; Kimura K.; Makita H.; Sekine M.; Obayashi M.; Nishi T.; Shibahara T.; Tanaka T.; Ishii S.; Yamamoto J.; Saito K.; Kawai Y.; Isono Y.; Nakamura Y.; Nagahari K.; Murakami K.; Yasuda T.; Iwayanagi T.; Wagatsuma M.; Shiratori A.; Sudo H.; Hosoiri T.; Kaku Y.; Kodaira H.; Kondo H.; Sugawara M.; Takahashi M.; Kanda K.; Yokoi T.; Furuya T.; Kikkawa E.; Omura Y.; Abe K.; Kamihara K.; Katsuta N.; Sato K.; Tanikawa M.; Yamazaki M.; Ninomiya K.; Ishibashi T.; Yamashita H.; Murakawa K.; Fujimori K.; Tanai H.; Kimata M.; Watanabe M.; Hiraoka S.; Chiba Y.; Ishida S.; Ono Y.; Takiguchi S.; Watanabe S.; Yosida M.; Hotuta T.; Kusano J.; Kanehori K.; Takahashi-Fujii A.; Hara H.; Tanase T.-O.; Nomura Y.; Togiya S.; Komai F.; Hara R.; Takeuchi K.; Arita M.; Imose N.; Musashino K.; Yuuki H.; Oshima A.; Sasaki N.; Aotsuka S.; Yoshikawa Y.; Matsunawa H.; Ichihara T.; Shiohata N.; Sano S.; Moriya S.; Momiyama H.; Satoh N.; Takami S.; Terashima Y.; Suzuki O.; Nakagawa S.; Senoh A.; Mizoguchi H.; Goto Y.; Shimizu F.; Wakebe H.; Hishigaki H.; Watanabe T.; Sugiyama A.; Takemoto M.; Kawakami B.; Yamazaki M.; Watanabe K.; Kumagai A.; Itakura S.; Fukuzumi Y.; Fujimori Y.; Komiyama M.; Tashiro H.; Tanigami A.; Fujiwara T.; Ono T.; Yamada K.; Fujii Y.; Ozaki K.; Hirao M.; Ohmori Y.; Kawabata A.; Hikiji T.; Kobatake N.; Inagaki H.; Ikema Y.; Okamoto S.; Okitani R.; Kawakami T.; Noguchi S.; Itoh T.; Shigeta K.; Senba T.; Matsumura K.; Nakajima Y.; Mizuno T.; Morinaga M.; Sasaki M.; Togashi T.; Oyama M.; Hata H.; Watanabe M.; Komatsu T.; Mizushima-Sugano J.; Satoh T.; Shirai Y.; Takahashi Y.; Nakagawa K.; Okumura K.; Nagase T.; Nomura N.; Kikuchi H.; Masuho Y.; Yamashita R.; Nakai K.; Yada T.; Nakamura Y.; Ohara O.; Isogai T.; Sugano S.;
Nat. Genet. 36:40-45(2004)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2); VARIANT ILE-274;

Mutations in IRF6 cause Van der Woude and popliteal pterygium syndromes.
Kondo S.; Schutte B.C.; Richardson R.J.; Bjork B.C.; Knight A.S.; Watanabe Y.; Howard E.; de Lima R.L.L.; Daack-Hirsch S.; Sander A.; McDonald-McGinn D.M.; Zackai E.H.; Lammer E.J.; Aylsworth A.S.; Ardinger H.H.; Lidral A.C.; Pober B.R.; Moreno L.; Arcos-Burgos M.; Valencia C.; Houdayer C.; Bahuau M.; Moretti-Ferreira D.; Richieri-Costa A.; Dixon M.J.; Murray J.C.;
Nat. Genet. 32:285-289(2002)
Cited for: VARIANTS VWS1 VAL-2; ALA-18; MET-18; ALA-39; GLY-61; ARG-70; SER-76; HIS-88; GLY-90; HIS-98; GLN-250; ARG-273; 290-PHE--ASP-296 DELINS LEU; PRO-294; ILE-297; GLU-320; MET-321; GLU-325; PRO-345; PHE-347; SER-369; TRP-374 AND GLU-388; VARIANTS PPS GLY-60; THR-66; LYS-82; CYS-84; HIS-84; GLU-89 AND ASN-430; VARIANT ILE-274;

Interferon regulatory factor 6 (IRF6) gene variants and the risk of isolated cleft lip or palate.
Zucchero T.M.; Cooper M.E.; Maher B.S.; Daack-Hirsch S.; Nepomuceno B.; Ribeiro L.; Caprau D.; Christensen K.; Suzuki Y.; Machida J.; Natsume N.; Yoshiura K.; Vieira A.R.; Orioli I.M.; Castilla E.E.; Moreno L.; Arcos-Burgos M.; Lidral A.C.; Field L.L.; Liu Y.-E.; Ray A.; Goldstein T.H.; Schultz R.E.; Shi M.; Johnson M.K.; Kondo S.; Schutte B.C.; Marazita M.L.; Murray J.C.;
N. Engl. J. Med. 351:769-780(2004)
Cited for: ASSOCIATION OF VARIANT ILE-274 WITH OFC6;

Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.