UniProtKB/Swiss-Prot P49238: Variant p.Val122Ile

CX3C chemokine receptor 1
Gene: CX3CR1
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Variant information Variant position:

122 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 Valine (V) to Isoleucine (I) at position 122 (V122I, p.Val122Ile). 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:

Similar physico-chemical property. Both residues are medium size and hydrophobic. 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:

Variations in CX3CR1 are associated with rapid progression to AIDS [MIM:609423]. Increased susceptibility to HIV infection and rapid progression to AIDS are associated with the Ile-249/Met-280 haplotype. Additional information on the polymorphism described.
Other resources:

Links to websites of interest for the variant.

Variant rs143001773 [ dbSNP | Ensembl ]

Sequence information Variant position:

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

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

CKFTTAFFFIGFFGSIFFIT V ISIDRYLAIVLAANSMNNRT 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                         CKFTTAFFFIGFFGSIFFITVISIDRYLAIVLAANSMNNRT

Mouse                         CKLTTAFFFIGFFGGIFFITVISIDRYLAIVLAANSMNNRT

Rat                           CKLTTAFFFIGFFGGIFFITVISIDRYLAIVLAANSMNNRT

Bovine                        CKLITAFFFIGFFGGIFFITVISVDRFLAIVLAANSMSNRT

Rabbit                        CKLTTALFFIGFFGGIFFITVISIDRYMAIVLAANSINNRT

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 – 355	CX3C chemokine receptor 1
Transmembrane	104 – 125	Helical; Name=3
Disulfide bond	102 – 175
Helix	99 – 131

Literature citations
Rapid progression to AIDS in HIV+ individuals with a structural variant of the chemokine receptor CX3CR1.
Faure S.; Meyer L.; Costagliola D.; Vaneensberghe C.; Genin E.; Autran B.; Delfraissy J.-F.; McDermott D.H.; Murphy P.M.; Debre P.; Theodorou I.; Combadiere C.;
Science 287:2274-2277(2000)
Cited for: VARIANTS ALA-57; ILE-122; ILE-249 AND MET-280;

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.