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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O75444: Variant p.Glu317Gly

Transcription factor Maf
Gene: MAF
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Variant information Variant position: help 317 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help US 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: help From Glutamate (E) to Glycine (G) at position 317 (E317G, p.Glu317Gly). 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: help Change from medium size and acidic (E) to glycine (G) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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: help In CTRCT21; uncertain significance. Any additional useful information about the variant.


Sequence information Variant position: help 317 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 373 The length of the canonical sequence.
Location on the sequence: help KNRGYAQSCRFKRVQQRHVL E SEKNQLLQQVDHLKQEISRL 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: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         KNRGYAQSCRFKRVQQRHVLESEKNQLLQQVDHLKQEISRL

Mouse                         KNRGYAQSCRFKRVQQRHVLESEKNQLLQQVDHLKQEISRL

Rat                           KNRGYAQSCRFKRVQQRHVLESEKNQLLQQVDHLKQEISRL

Bovine                        KNRGYAQSCRFKRVQQRHVLESEKNQLLQQVDHLKQEISRL

Chicken                       KNRGYAQSCRFKRVQQRHVLESEKNQLLQQVEHLKQEISRL

Xenopus tropicalis            KNRGYAQSCRFKRVQQRHVLESEKNQLLQQVEHLKQEISRL

Zebrafish                     KNRGYAQSCRYKRVQQRHVLEGEKTQLMQQVDHLKQEISRL

Sequence annotation in neighborhood: help 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 – 373 Transcription factor Maf
Domain 288 – 351 bZIP
Region 126 – 373 Represses ARE-mediated transcription
Region 316 – 337 Leucine-zipper
Cross 331 – 331 Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)



Literature citations
Clinical and genetic characteristics of Chinese patients with familial or sporadic pediatric cataract.
Li J.; Leng Y.; Han S.; Yan L.; Lu C.; Luo Y.; Zhang X.; Cao L.;
Orphanet J. Rare Dis. 13:94-94(2018)
Cited for: VARIANT CTRCT21 GLY-317;
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.