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UniProtKB/Swiss-Prot Q05066: Variant p.Asn87Tyr

Sex-determining region Y protein
Gene: SRY
Variant information

Variant position:  87
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  LP/P [Disclaimer]
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 Asparagine (N) to Tyrosine (Y) at position 87 (N87Y, p.Asn87Tyr).
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 (N) to large size and aromatic (Y)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -2
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

Variant description:  In SRXY1.
Any additional useful information about the variant.



Sequence information

Variant position:  87
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  204
The length of the canonical sequence.

Location on the sequence:   FIVWSRDQRRKMALENPRMR  N SEISKQLGYQWKMLTEAEKW
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                         FIVWSRDQRRKMALENPRMRNSEISKQLGYQWKMLTEAEKW

Gorilla                       FIVWSRDQRRKMALENPRMRNSEISKQLGYQWKMLTEAEKW

                              FLVWSRDQRRKMALENPQMQNSEISKQLGYQWKMLTEAEKW

Rhesus macaque                FIVWSRDQKRKMALENPKMRNSEISKQLGYQWKMLTEADKW

Chimpanzee                    FFVWSRDQRRKMALENPRMRNSEISKQLGYQWKMLTEAEKW

Mouse                         FMVWSRGERHKLAQQNPSMQNTEISKQLGCRWKSLTEAEKR

Rat                           FMVWSRGERRKLAQQNPSMQNSEISKHLGYQWKSLTEAEKR

Pig                           FIVWSRDQRRKVALENPQMQNSEISKWLGCKWKMLTEAEKR

Bovine                        FIVWSRERRRKVALENPKMKNSDISKQLGYEWKRLTDAEKR

Goat                          FIVWSRERRRKVALENPKLQNSEISKQLGYEWKRLTDAEKR

Sheep                         FIVWSRERRRKVALENPKLQNSEISKQLGYEWKRLTDAEKR

Cat                           FMVWSRDQRRKVALENPQTQNSEISKQLGYQWKMLTQAEKW

Horse                         FMVWSRDHRRKVALENPQLQNSEISKRLGCQWKMLTEAEKL

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.

TypePositionsDescription
Chain 1 – 204 Sex-determining region Y protein
DNA binding 60 – 128 HMG box
Region 59 – 136 Sufficient for interaction with KPNB1
Mutagenesis 75 – 75 R -> N. Strongly reduces nuclear localization. Abolishes DNA-binding. Does not reduce interaction with KPNB1 and CAML.
Mutagenesis 76 – 76 R -> P. Reduces nuclear localization. Reduces DNA-binding. Does not reduce interaction with KPNB1 and CAML.
Helix 87 – 98


Literature citations

A novel missense mutation in the HMG box region of the SRY gene in a Japanese patient with an XY sex reversal.
Okuhara K.; Tajima T.; Nakae J.; Fujieda K.;
J. Hum. Genet. 45:112-114(2000)
Cited for: VARIANT SRXY1 TYR-87;

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.