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UniProtKB/Swiss-Prot A9YTQ3: Variant p.Leu114Pro

Aryl hydrocarbon receptor repressor
Gene: AHRR
Variant information

Variant position:  114
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 Leucine (L) to Proline (P) at position 114 (L114P, p.Leu114Pro).
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:  The Ala-189 allele may be a susceptibility factor for dioxin-related male infertility. Homozygosity for Ala-189 is observed in azoospermic individuals at higher frequency than in normozoospermic individuals (PubMed:15474075, PubMed:17559847). Might also be associated with susceptibility to and severity of endometriosis.
Additional information on the polymorphism described.

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  114
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  701
The length of the canonical sequence.

Location on the sequence:   QPAAGAPSPGDSCPLAGSAV  L EGRLLLESLNGFALVVSAEG
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                         QPAAGAPSPGDSCPLAGSAVLEGRLLLESLNGFALVVSAEG

Mouse                         SAPALSP---EEHSYRGFPVQEGRLLLESLNGFALVVSAEG

Rat                           SAPALSP---EDHSSRGFPVQEGRLLLESLNGFALVVSAEG

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 – 701 Aryl hydrocarbon receptor repressor
Domain 112 – 182 PAS


Literature citations

Characterization of the aryl hydrocarbon receptor repressor gene and association of its Pro185Ala polymorphism with micropenis.
Fujita H.; Kosaki R.; Yoshihashi H.; Ogata T.; Tomita M.; Hasegawa T.; Takahashi T.; Matsuo N.; Kosaki K.;
Teratology 65:10-18(2002)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM 3); TISSUE SPECIFICITY; VARIANT PRO-114;

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.