UniProtKB/Swiss-Prot P00156: Variant p.Thr123Ala

Cytochrome b
Gene: MT-CYB
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Variant information Variant position:

123 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 Alanine (A) at position 123 (T123A, p.Thr123Ala). 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 small size and hydrophobic (A) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score:

0 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
Other resources:

Links to websites of interest for the variant.

Variant rs1603225089 [ dbSNP | Ensembl ]

Sequence information Variant position:

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

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

YYGSFLYSETWNIGIILLLA T MATAFMGYVLPWGQMSFWGA 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                         YYGSFLY--SETWNIGIILLLATMATAFMGYVLPWGQMSFWGA

Gorilla                       YYGSFLH--QETWNIGIILLLTTMAAAFMGYVLPWGQMSFW

                              YYGSYVF--METWNIGIVLLFATMATAFMGYVLPWGQMSFW

Rhesus macaque                YYGSYLL--LETWNIGIMLLLMTMTTAFMGYVLPWGQMSFW

Chimpanzee                    YYGSFLY--LETWNIGIILLLTTMATAFMGYVLPWGQMSFW

Mouse                         YYGSYTF--METWNIGVLLLFAVMATAFMGYVLPWGQMSFW

Rat                           YYGSYTF--LETWNIGIILLFAVMATAFMGYVLPWGQMSFW

Pig                           YYGSYMF--LETWNIGVVLLFTVMATAFMGYVLPWGQMSFW

Bovine                        YYGSYTF--LETWNIGVILLLTVMATAFMGYVLPWGQMSFW

Rabbit                        YYGSYTY--LETWNIGIILLFAVMATAFMGYVLPWGQMSFW

Goat                          YYGSYTF--LETWNIGVILLLATMATAFMGYVLPWGQMSFW

Sheep                         YYGSYTF--LETWNIGVILLFATMATAFMGYVLPWGQMSFW

Cat                           YYGSYTF--SETWNIGIMLLFTVMATAFMGYVLPWGQMSFW

Horse                         YYGSYTF--LETWNIGIILLFTVMATAFMGYVLPWGQMSFW

Chicken                       YYGSYLY--KETWNTGVILLLTLMATAFVGYVLPWGQMSFW

Xenopus laevis                YYGSFLY--KETWNIGVILLFLVMATAFVGYVLPWGQMSFW

Zebrafish                     YYGSYLY--NETWNIGVVLFLLVMMTAFVGYVLPWGQMSFW

Caenorhabditis elegans        FFMSYRL--KKVWMSGLTIYLLVMMEAFMGYVLVWAQMSFW

Drosophila                    YYGSYKF--TPTWLIGVIILFLVMGTAFMGYVLPWGQMSFW

Slime mold                    YFGSYQKPNAMLWVSGVVIFLLLIITGFLGYVLPWGQMSYW

Baker's yeast                 YYGSYRSPRVTLWNVGVIIFILTIATAFLGYCCVYGQMSHW

Fission yeast                 YYGSYKYPRTMTWNIGVIIFLLTIITAFLGYCLPANQMSFW

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 – 380	Cytochrome b
Transmembrane	113 – 133	Helical
Helix	110 – 131

Literature citations
Mitochondrial genome variation and the origin of modern humans.
Ingman M.; Kaessmann H.; Paeaebo S.; Gyllensten U.;
Nature 408:708-713(2000)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-378; VARIANTS ILE-7; SER-8; LEU-18; VAL-39; THR-78; THR-122; ALA-123; THR-153; ALA-194; THR-229; ILE-236; THR-306; THR-329; VAL-334; MET-353; MET-356 AND ILE-368;

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.