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UniProtKB/Swiss-Prot Q12824: Variant p.Arg377His

SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily B member 1
Gene: SMARCB1
Variant information

Variant position:  377
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 implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  From Arginine (R) to Histidine (H) at position 377 (R377H, p.Arg377His).
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 large size and basic (R) to medium size and polar (H)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  0
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:  Coffin-Siris syndrome 3 (CSS3) [MIM:614608]: A form of Coffin-Siris syndrome, a congenital multiple malformation syndrome with broad phenotypic and genetic variability. Cardinal features are intellectual disability, coarse facial features, hypertrichosis, and hypoplastic or absent fifth digit nails or phalanges. Additional features include malformations of the cardiac, gastrointestinal, genitourinary, and/or central nervous systems. Sucking/feeding difficulties, poor growth, ophthalmologic abnormalities, hearing impairment, and spinal anomalies are common findings. Both autosomal dominant and autosomal recessive inheritance patterns have been reported. {ECO:0000269|PubMed:22426308, ECO:0000269|PubMed:22726846, ECO:0000269|PubMed:23906836}. 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 CSS3.
Any additional useful information about the variant.

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



Sequence information

Variant position:  377
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  385
The length of the canonical sequence.

Location on the sequence:   TDAEMEKKIRDQDRNTRRMR  R LANTAPAW
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                         TDAEMEKKIRDQDRNTRRMRR----------------------------------------------------------------------------------------------------------------------------------------------------------------LANTA----------------PAW---------------------------------------------------------------------------------

Mouse                         TDAEMEKKIRDQDRNTRRMRR--------

Bovine                        TDAEMEKKIRDQDRNTRRMRR--------

Chicken                       TDAEMEKKIRDQDRNTRRMRR--------

Xenopus laevis                TDAEMEKKIRDQDRNTRRMRR--------

Xenopus tropicalis            TDAEMEKKIRDQDRNTRRMRR--------

Zebrafish                     TDAEMEKKIRDQDRNTRRMRR--------

Caenorhabditis elegans        YIYGF-RNVRDDITEVVGHAR--------

Baker's yeast                 SAAELERLDKDKDRDTRRKRRQGRSNRRG

Fission yeast                 NDAEMERQDRGYDREARRMRRRQGRAKHG

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 – 385 SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily B member 1


Literature citations

Mutations affecting components of the SWI/SNF complex cause Coffin-Siris syndrome.
Tsurusaki Y.; Okamoto N.; Ohashi H.; Kosho T.; Imai Y.; Hibi-Ko Y.; Kaname T.; Naritomi K.; Kawame H.; Wakui K.; Fukushima Y.; Homma T.; Kato M.; Hiraki Y.; Yamagata T.; Yano S.; Mizuno S.; Sakazume S.; Ishii T.; Nagai T.; Shiina M.; Ogata K.; Ohta T.; Niikawa N.; Miyatake S.; Okada I.; Mizuguchi T.; Doi H.; Saitsu H.; Miyake N.; Matsumoto N.;
Nat. Genet. 44:376-378(2012)
Cited for: VARIANTS CSS3 LYS-364 DEL AND HIS-377;

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.