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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O43908: Variant p.Asn104Ser

NKG2-F type II integral membrane protein
Gene: KLRC4
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Variant information Variant position: help 104 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Asparagine (N) to Serine (S) at position 104 (N104S, p.Asn104Ser). 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 polar (N) to small size and polar (S) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 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

Variant description: help In allele NKG2-F*02. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 104 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 158 The length of the canonical sequence.
Location on the sequence: help MATVLKTIVLIPCIGVLEQN N FSLNRRMQKARHCGHCPEEW 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                         MATVLKTIVLIPCIGVLEQNNFSLNRRMQKARHCGHCPEEW

Chimpanzee                    MATVLKTIVLIPCIGVLEQNNFSLNRRMQKACDCGHCPEEW

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 – 158 NKG2-F type II integral membrane protein
Topological domain 96 – 158 Extracellular



Literature citations
Cloning of NKG2-F, a new member of the NKG2 family of human natural killer cell receptor genes.
Plougastel B.; Trowsdale J.;
Eur. J. Immunol. 27:2835-2839(1997)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA]; VARIANTS SER-29 AND SER-104; Sequence analysis of a 62-kb region overlapping the human KLRC cluster of genes.
Plougastel B.; Trowsdale J.;
Genomics 49:193-199(1998)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS SER-29 AND SER-104; The genomic organization of NKG2C, E, F, and D receptor genes in the human natural killer gene complex.
Glienke J.; Sobanov Y.; Brostjan C.; Steffens C.; Nguyen C.; Lehrach H.; Hofer E.; Francis F.;
Immunogenetics 48:163-173(1998)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA]; VARIANTS SER-29 AND SER-104; Conservation and variation in human and common chimpanzee CD94 and NKG2 genes.
Shum B.P.; Flodin L.R.; Muir D.G.; Rajalingam R.; Khakoo S.I.; Cleland S.; Guethlein L.A.; Uhrberg M.; Parham P.;
J. Immunol. 168:240-252(2002)
Cited for: NUCLEOTIDE SEQUENCE [MRNA]; VARIANTS SER-29 AND SER-104;
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.