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UniProtKB/Swiss-Prot Q14653: Variant p.Arg227Gln

Interferon regulatory factor 3
Gene: IRF3
Variant information

Variant position:  227
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  US
The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance

Residue change:  From Arginine (R) to Glutamine (Q) at position 227 (R227Q, p.Arg227Gln).
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:  Change from large size and basic (R) to medium size and polar (Q)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  1
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:  No effect on IFNB induction upon Sendai virus infection.
Any additional useful information about the variant.



Sequence information

Variant position:  227
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  427
The length of the canonical sequence.

Location on the sequence:   TAFYRGRQVFQQTISCPEGL  R LVGSEVGDRTLPGWPVTLPD
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                         TAFYRGRQVFQQTISCPEGLRLVGSEVGDRTLPGWPVTLPD

Mouse                         TAFYRGRQVFQQTLFCPGGLRLVGSTA-DMTLPWQPVTLPD

Pig                           TVFYRGCQVFQQTVCSPGGLRLVGSEAEDGTLAGQPVRLPD

Bovine                        TAFYRGCQVFQQTVFCPGGLRLVGSEAGDRMLPGQPIRLPD

Chicken                       TIYYRGKMVYQEQV--DDSRCVLAYQPLDPAVAEQRLVLFP

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 – 427 Interferon regulatory factor 3
Region 141 – 427 Mediates interaction with ZDHHC11
Region 200 – 360 Interaction with HERC5
Modified residue 237 – 237 Phosphothreonine
Modified residue 244 – 244 Phosphothreonine
Alternative sequence 105 – 427 Missing. In isoform 5.
Alternative sequence 201 – 327 Missing. In isoform 2 and isoform 3.
Beta strand 226 – 229


Literature citations

Inborn errors of type I IFN immunity in patients with life-threatening COVID-19.
Zhang Q.; Bastard P.; Liu Z.; Le Pen J.; Moncada-Velez M.; Chen J.; Ogishi M.; Sabli I.K.D.; Hodeib S.; Korol C.; Rosain J.; Bilguvar K.; Ye J.; Bolze A.; Bigio B.; Yang R.; Arias A.A.; Zhou Q.; Zhang Y.; Onodi F.; Korniotis S.; Karpf L.; Philippot Q.; Chbihi M.; Bonnet-Madin L.; Dorgham K.; Smith N.; Schneider W.M.; Razooky B.S.; Hoffmann H.H.; Michailidis E.; Moens L.; Han J.E.; Lorenzo L.; Bizien L.; Meade P.; Neehus A.L.; Ugurbil A.C.; Corneau A.; Kerner G.; Zhang P.; Rapaport F.; Seeleuthner Y.; Manry J.; Masson C.; Schmitt Y.; Schlueter A.; Le Voyer T.; Khan T.; Li J.; Fellay J.; Roussel L.; Shahrooei M.; Alosaimi M.F.; Mansouri D.; Al-Saud H.; Al-Mulla F.; Almourfi F.; Al-Muhsen S.Z.; Alsohime F.; Al Turki S.; Hasanato R.; van de Beek D.; Biondi A.; Bettini L.R.; D'Angio' M.; Bonfanti P.; Imberti L.; Sottini A.; Paghera S.; Quiros-Roldan E.; Rossi C.; Oler A.J.; Tompkins M.F.; Alba C.; Vandernoot I.; Goffard J.C.; Smits G.; Migeotte I.; Haerynck F.; Soler-Palacin P.; Martin-Nalda A.; Colobran R.; Morange P.E.; Keles S.; Coelkesen F.; Ozcelik T.; Yasar K.K.; Senoglu S.; Karabela S.N.; Rodriguez-Gallego C.; Novelli G.; Hraiech S.; Tandjaoui-Lambiotte Y.; Duval X.; Laouenan C.; Snow A.L.; Dalgard C.L.; Milner J.D.; Vinh D.C.; Mogensen T.H.; Marr N.; Spaan A.N.; Boisson B.; Boisson-Dupuis S.; Bustamante J.; Puel A.; Ciancanelli M.J.; Meyts I.; Maniatis T.; Soumelis V.; Amara A.; Nussenzweig M.; Garcia-Sastre A.; Krammer F.; Pujol A.; Duffy D.; Lifton R.P.; Zhang S.Y.; Gorochov G.; Beziat V.; Jouanguy E.; Sancho-Shimizu V.; Rice C.M.; Abel L.; Notarangelo L.D.; Cobat A.; Su H.C.; Casanova J.L.;
Science 370:0-0(2020)
Cited for: VARIANTS GLU-49 DEL; 145-GLY--GLU-200 DEL; LYS-146; GLN-227; GLN-285 AND VAL-401; CHARACTERIZATION OF VARIANTS GLU-49 DEL; 145-GLY--GLU-200 DEL; LYS-146; GLN-227; GLN-285 AND VAL-401; FUNCTION;

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.