UniProtKB/Swiss-Prot Q9HC29: Variant p.His496Leu

Nucleotide-binding oligomerization domain-containing protein 2
Gene: NOD2
Chromosomal location: 16q12
Variant information

Variant position:  496
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants have been found in patients and disease-association is reported in literature. However, this classification is not a definitive assessment of variant pathogenicity.
  • Polymorphism: No disease-association has been reported.
  • Unclassified: Variants have been found in patients but disease-association remains unclear.

Residue change:  From Histidine (H) to Leucine (L) at position 496 (H496L, p.His496Leu).
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 (H) to medium size and hydrophobic (L)
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

Involvement in disease:  Sarcoidosis early-onset (EOS) [MIM:609464]: A form of sarcoidosis manifesting in children younger than 4 years of age. Sarcoidosis is an idiopathic, systemic, inflammatory disease characterized by the formation of immune granulomas in involved organs. Granulomas predominantly invade the lungs and the lymphatic system, but also skin, liver, spleen, eyes and other organs may be involved. Early-onset sarcoidosis is quite rare and has a distinct triad of skin, joint and eye disorders, without apparent pulmonary involvement. Compared with an asymptomatic and sometimes naturally disappearing course of the disease in older children, early-onset sarcoidosis is progressive and in many cases causes severe complications, such as blindness, joint destruction and visceral involvement. Note=The disease is caused by mutations affecting the gene represented in this entry.
The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

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



Sequence information

Variant position:  496
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1040
The length of the canonical sequence.

Location on the sequence:   TSALHGLCHLPVFSWMVSKC  H QELLLQEGGSPKTTTDMYLL
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                         TSALHGLCHLPVFSWMVSKCHQELLLQEGGSPKTTTDMYLL

Chimpanzee                    TSALHGLCHLPVFSWMVSKCHQELLLQEGGSPKTTTDMYLL

Mouse                         TSALHGLCHLPVFSWMVSRCHRELLLQNRGFPTTSTDMYLL

Bovine                        TSALHGLCHLPVFSWMVSKCHEELLLQGRGSPKTTTDMYLL

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 – 1040 Nucleotide-binding oligomerization domain-containing protein 2
Domain 293 – 618 NACHT
Alternative sequence 225 – 1040 Missing. In isoform 3.


Literature citations

Early-onset sarcoidosis and CARD15 mutations with constitutive nuclear factor-kappaB activation: common genetic etiology with Blau syndrome.
Kanazawa N.; Okafuji I.; Kambe N.; Nishikomori R.; Nakata-Hizume M.; Nagai S.; Fuji A.; Yuasa T.; Manki A.; Sakurai Y.; Nakajima M.; Kobayashi H.; Fujiwara I.; Tsutsumi H.; Utani A.; Nishigori C.; Heike T.; Nakahata T.; Miyachi Y.;
Blood 105:1195-1197(2005)
Cited for: VARIANTS EOS GLU-382; LEU-496 AND THR-612;

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.