UniProtKB/Swiss-Prot P06727: Variant p.Arg305Cys

Apolipoprotein A-IV
Gene: APOA4
Feedback?

Variant information Variant position:

305 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 Arginine (R) to Cysteine (C) at position 305 (R305C, p.Arg305Cys). 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 (C) 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
Polymorphism:

Eight alleles have been characterized (APOA-IV*0 to APOA-IV*7). APOA-IV*1 is the major allele (90%), APOA-IV*2 is also common (8%), the others are rare alleles. Additional information on the polymorphism described.
Variant description:

In allele Budapest-1. Any additional useful information about the variant.
Other resources:

Links to websites of interest for the variant.

Variant rs150264487 [ dbSNP | Ensembl ]

Sequence information Variant position:

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

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

LQKSLAELGGHLDQQVEEFR R RVEPYGENFNKALVQQMEQL 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                         LQKSLAELGGHLDQQVEEFRRRVEPYGENFNKALVQQMEQL

                              LHKSLAELSSRLDQQVEEFRRNVGPYGETFNKALLQQVEEL

Mouse                         LQKSLEDLNRQLEQQVEEFRRTVEPMGEMFNKALVQQLEQF

Rat                           LQKSLEDLNKQLDQQVEVFRRAVEPLGDKFNMALVQQMEKF

Pig                           LQKSLLELRSHLDQQVEEFRLKVEPYGETFNKALVQQVEDL

Bovine                        LQKSLAELSSRLDQQVEDFRRTVGPYGETFNKAMVQQLDTL

Cat                           LQESLAQLNSHLDRQVEEFRRNLGPYGDTFNRALVQQVEEL

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	21 – 396	Apolipoprotein A-IV
Repeat	287 – 308	12
Region	33 – 330	13 X 22 AA approximate tandem repeats
Helix	282 – 307

Literature citations
Apolipoprotein A-IV polymorphism in the Hungarian population: gene frequencies, effect on lipid levels, and sequence of two new variants.
Menzel H.J.; Dieplinger H.; Sandholzer C.; Karadi I.; Utermann G.; Csaszar A.;
Hum. Mutat. 5:58-65(1995)
Cited for: VARIANT BUDAPEST-2 LYS-44; VARIANTS BUDAPEST-1 CYS-305 AND SER-367;

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.