UniProtKB/Swiss-Prot Q15165: Variant p.Ser311Cys

Serum paraoxonase/arylesterase 2
Gene: PON2
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Variant information Variant position:

311 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant:

LB/B 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 Cysteine (C) at position 311 (S311C, p.Ser311Cys). 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 polar (C) 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
Polymorphism:

Ser-311 is associated with an increased risk of cornary heart disease. Additional information on the polymorphism described.
Other resources:

Links to websites of interest for the variant.

Variant rs7493 [ dbSNP | Ensembl ]

Sequence information Variant position:

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

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

FVYDPNNPPSSEVLRIQNIL S EKPTVTTVYANNGSVLQGSS 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                         FVYDPNNPPSSEVLRIQNILSEKPTVTTVYANNGSVLQGSS

                              FIYDPNNPPSSEVLRIQNILCEKPTVTTVYANNGSVLQGSS

Mouse                         FVYHPNHPPASEVLRIQNILSEKPSVTTVYINNGSVLQGSS

Rat                           FVYDPNHPPSSEVLRIQNILSEKPSVTTVYINNGSVLQGSS

Bovine                        FVYDPKNPPSSEVLRIQNILSEKPTVTTVYANNGSVLQGSS

Chicken                       FYDDPDNPPASEVLRIQNILAEQPTVTRVYAENGSVLQGTS

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	1 – 354	Serum paraoxonase/arylesterase 2
Glycosylation	323 – 323	N-linked (GlcNAc...) asparagine
Disulfide bond	42 – 352

Literature citations
The human serum paraoxonase/arylesterase gene (PON1) is one member of a multigene family.
Primo-Parmo S.L.; Sorenson R.C.; Teiber J.; La Du B.N.;
Genomics 33:498-507(1996)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1); VARIANT CYS-311;

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.