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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q27J81: Variant p.Leu198Arg

Inverted formin-2
Gene: INF2
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Variant information Variant position: help 198 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] 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: help From Leucine (L) to Arginine (R) at position 198 (L198R, p.Leu198Arg). 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: help Change from medium size and hydrophobic (L) to large size and basic (R) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -2 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: help In FSGS5. Any additional useful information about the variant.


Sequence information Variant position: help 198 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 1249 The length of the canonical sequence.
Location on the sequence: help FSIVMNELSGSDNVPYVVTL L SVINAVILGPEDLRARTQLR 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: help The multiple alignment of the region surrounding the variant against various orthologous sequences. 
Human                         FSIVMNELSGSDNVPYVVTLLSVINAVILGPEDLRARTQLR

Mouse                         FSVIMSELSDSDNVPYVVTLLSVINAIILGPEDLRSRAQLR

Xenopus laevis                FSVITNELSSSDNVPYMVTLLSVINAIIFGTEELRNRVQLR

Xenopus tropicalis            FSVIMNELSTSDNVPYMVTLLSAINAIIFGTEELRKRVQLR
Sequence annotation in neighborhood: help 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 2 – 1249 Inverted formin-2
Domain 2 – 330 GBD/FH3



Literature citations
Mutations in the formin gene INF2 cause focal segmental glomerulosclerosis.
Brown E.J.; Schlondorff J.S.; Becker D.J.; Tsukaguchi H.; Tonna S.J.; Uscinski A.L.; Higgs H.N.; Henderson J.M.; Pollak M.R.;
Nat. Genet. 42:72-76(2010)
Cited for: VARIANTS FSGS5 THR-13; PRO-42; LYS-184; PRO-186; ARG-198; HIS-214; TRP-218; GLN-218 AND LYS-220; TISSUE SPECIFICITY; SUBCELLULAR LOCATION; Mutations in INF2 are a major cause of autosomal dominant focal segmental glomerulosclerosis.
Boyer O.; Benoit G.; Gribouval O.; Nevo F.; Tete M.J.; Dantal J.; Gilbert-Dussardier B.; Touchard G.; Karras A.; Presne C.; Grunfeld J.P.; Legendre C.; Joly D.; Rieu P.; Mohsin N.; Hannedouche T.; Moal V.; Gubler M.C.; Broutin I.; Mollet G.; Antignac C.;
J. Am. Soc. Nephrol. 22:239-245(2011)
Cited for: VARIANTS FSGS5 PRO-76; HIS-177; HIS-193; ARG-198; CYS-214; GLN-218 AND LYS-220; Mutations in the INF2 gene account for a significant proportion of familial but not sporadic focal and segmental glomerulosclerosis.
Barua M.; Brown E.J.; Charoonratana V.T.; Genovese G.; Sun H.; Pollak M.R.;
Kidney Int. 83:316-322(2013)
Cited for: VARIANTS FSGS5 PRO-42; SER-73; LEU-81 DEL; PRO-81; ARG-151; ASP-158; CYS-177; GLY-181; LYS-184; PRO-186; ARG-198; CYS-214; HIS-214; GLN-218; TRP-218 AND LYS-220;
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.