UniProtKB/SwissProt variant VAR

Ferrochelatase, mitochondrial
Gene: FECH
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Variant information Variant position:

264 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 Serine (S) to Leucine (L) at position 264 (S264L, p.Ser264Leu). 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 small size and polar (S) to medium size and hydrophobic (L) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score:

-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:

In EPP1. Any additional useful information about the variant.

Sequence information Variant position:

264 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

423 The length of the canonical sequence.
Location on the sequence:

ELDHFPLEKRSEVVILFSAH S LPMSVVNRGDPYPQEVSATV 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                         ELDHFPLEKR---------------SEVVILFSAHSLPMSVVNRGDPYPQEVSATV

Chimpanzee                    ELDHFPLEKR---------------SEVVILFSAHSLPMSV

Mouse                         ELNHFPEEKR---------------SEVVILFSAHSLPMSV

Bovine                        ELDHFPPEKR---------------REVVILFSAHSLPMSV

Chicken                       ELDLFPPDKR---------------KDVVILFSAHSLPMSV

Xenopus laevis                ELNMFPADKR---------------GEVVILFSAHSLPMSV

Drosophila                    ELAKFVETKR---------------NDVVILFTAHSLPLKA

Slime mold                    AYNQFNSKLRELDIDDVDANNNNNNNKPVLVFSAHSLPMST

Baker's yeast                 KLQEFPQPVR---------------DKVVLLFSAHSLPMDV

Fission yeast                 TLKTYPEDVR---------------DDVVIVFSAHSLPMSQ

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	55 – 423	Ferrochelatase, mitochondrial

Literature citations
Heterogeneity of mutations in the ferrochelatase gene in Italian patients with erythropoietic protoporphyria.
Aurizi C.; Schneider-Yin X.; Sorge F.; Macri A.; Minder E.I.; Biolcati G.;
Mol. Genet. Metab. 90:402-407(2007)
Cited for: VARIANT EPP1 LEU-264;

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.

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P22830: Variant p.Ser264Leu