UniProtKB/Swiss-Prot P07550: Variant p.Thr164Ile

Beta-2 adrenergic receptor
Gene: ADRB2
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Variant information Variant position:

164 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 Threonine (T) to Isoleucine (I) at position 164 (T164I, p.Thr164Ile). 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 (T) to medium size and hydrophobic (I) 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:

The Gly-16 allele is overrepresented in individuals affected by nocturnal asthma as compared to controls, and appears to be an important genetic factor in the expression of this asthmatic phenotype. Additional information on the polymorphism described.
Other resources:

Links to websites of interest for the variant.

Variant rs1800888 [ dbSNP | Ensembl ]

Sequence information Variant position:

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

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

LLTKNKARVIILMVWIVSGL T SFLPIQMHWYRATHQEAINC 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                         LLTKNKARVIILMVWIVSGLTSFLPIQMHWYRATHQEAINC

                              LLTKNKARVVILMVWIVSGLTSFLPIQMHWYRATHQEAINC

Rhesus macaque                LLTKNKARVIILMVWIVSGLTSFLPIQMHWYRATHQEAINC

Mouse                         LLTKNKARVVILMVWIVSGLTSFLPIQMHWYRATHKKAIDC

Rat                           LLTKNKARVVILMVWIVSGLTSFLPIQMHWYRATHKQAIDC

Pig                           LLTKNKARVVILMVWVVSGLISFLPIKMHWYQATHREALNC

Bovine                        LLTKNKARVVILMVWIVSGLTSFLPIQMHWYRASHKEAINC

Cat                           LLTKNKARVVILMVWIVSGLTSFLPIQMHWYRATHQEAINC

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 – 413	Beta-2 adrenergic receptor
Transmembrane	151 – 174	Helical; Name=4
Disulfide bond	106 – 191
Helix	147 – 170

Literature citations
Mutations in the gene encoding for the beta 2-adrenergic receptor in normal and asthmatic subjects.
Reihsaus E.; Innis M.; Macintyre N.; Liggett S.B.;
Am. J. Respir. Cell Mol. Biol. 8:334-339(1993)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS ARG-16; GLN-27; MET-34 AND ILE-164;

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.