UniProtKB/SwissProt variant VAR

Variant information

Variant position:

193

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

Type of variant:

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:

From Cysteine (C) to Arginine (R) at position 193 (C193R, p.Cys193Arg).

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 medium size and polar (C) to large size and basic (R)

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:

In TYRSN1; loss of activity.

Any additional useful information about the variant.

Sequence information

Variant position:

193

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

Protein sequence length:

419

The length of the canonical sequence.

Location on the sequence:

IRRPMGQMKPDDSKPPVYGA C KLLDMELEMAFFVGPGNRLG

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                         IRRPMGQMKPDDSKP-PVYGACKLLDMELEMAFFVG-PGNRLG

Mouse                         IRRPMGQMRPDNSKP-PVYGACRLLDMELEMAFFVG-PGNR

Rat                           IRRPMGQMRPDNSKP-PVYGASKRLDMELEMAFFVG-PGNR

Bovine                        IRRPLGQMRPDDSKP-PVYGACKLLDFELEMAFFVG-PGNK

Caenorhabditis elegans        LKRPVGQTKAPDAEV-PSFGPSKLMDFELEMAFFVGGPENE

Slime mold                    LKRPWGQTKSDEPDSLPTFNPCRLLDFELEMGALIGGESTK

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.

Type	Positions	Description
Chain	2 – 419	Fumarylacetoacetase
Binding site	199 – 199
Binding site	201 – 201

Literature citations

Hereditary tyrosinemia type 1: novel missense, nonsense and splice consensus mutations in the human fumarylacetoacetate hydrolase gene; variability of the genotype-phenotype relationship.
Ploos van Amstel J.K.; Bergman A.J.I.W.; van Beurden E.A.C.M.; Roijers J.F.M.; Peelen T.; van den Berg I.E.T.; Poll-The B.T.; Kvittingen E.A.; Berger R.;
Hum. Genet. 97:51-59(1996)
Cited for: VARIANTS TYRSN1 ARG-193 AND VAL-369;

Structural and functional analysis of missense mutations in fumarylacetoacetate hydrolase, the gene deficient in hereditary tyrosinemia type 1.
Bergeron A.; D'Astous M.; Timm D.E.; Tanguay R.M.;
J. Biol. Chem. 276:15225-15231(2001)
Cited for: CHARACTERIZATION OF VARIANTS TYRSN1 ILE-16; CYS-62; ASP-134; ARG-193; VAL-233; GLY-234 AND ARG-279; CHARACTERIZATION OF VARIANT TRP-341;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P16930: Variant p.Cys193Arg