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dbSNP Short Genetic Variations

Reference SNP (rs) Report


This page reports data for a single dbSNP Reference SNP variation (RefSNP or rs) from the new redesigned dbSNP build.
Top of the page reports a concise summary for the rs, with more specific details included in the corresponding tabs below.
All alleles are reported in the Forward orientation. Use the Genomic View to inspect the nucleotides flanking the variant, and its neighbors.
For more information see Help documentation.


Current Build 151

Released July 17, 2018

Homo sapiens
chr11:5226623 (GRCh38.p7) Help

The anchor position for this RefSNP. Includes all nucleotides potentially affected by this change, thus it can differ from HGVS, which is right-shifted. See here for details.

C>G / C>T
Variation Type
SNV Single Nucleotide Variation
Clinical Significance
Reported in ClinVar
Gene : Consequence
HBB : Missense Variant
3 citations
Genomic View
See rs on genome

Variant Details tab shows known variant placements on genomic sequences: chromosomes (NC_), RefSeqGene, pseudogenes or genomic regions (NG_), and in a separate table: on transcripts (NM_) and protein sequences (NP_). The corresponding transcript and protein locations are listed in adjacent lines, along with molecular consequences from Sequence Ontology. When no protein placement is available, only the transcript is listed. Column "Codon[Amino acid]" shows the actual base change in the format of "Reference > Alternate" allele, including the nucleotide codon change in transcripts, and the amino acid change in proteins, respectively, allowing for known ribosomal slippage sites. To view nucleotides adjacent to the variant use the Genomic View at the bottom of the page - zoom into the sequence until the nucleotides around the variant become visible.

Genomic Placements
Sequence name Change
GRCh38.p7 chr 11 NC_000011.10:g.5226623C>G
GRCh38.p7 chr 11 NC_000011.10:g.5226623C>T
GRCh37.p13 chr 11 NC_000011.9:g.5247853C>G
GRCh37.p13 chr 11 NC_000011.9:g.5247853C>T
HBB region RefSeqGene NG_000007.3:g.70993G>C
HBB region RefSeqGene NG_000007.3:g.70993G>A
Gene: HBB, hemoglobin subunit beta (minus strand)
Molecule type Change Amino acid[Codon] SO Term
HBB transcript NM_000518.4:c.269G>C S [AGT] > T [ACT] Coding Sequence Variant
hemoglobin subunit beta NP_000509.1:p.Ser...


S (Ser) > T (Thr) Missense Variant
HBB transcript NM_000518.4:c.269G>A S [AGT] > N [AAT] Coding Sequence Variant
hemoglobin subunit beta NP_000509.1:p.Ser...


S (Ser) > N (Asn) Missense Variant

Clinical Significance tab shows a list of clinical significance entries from ClinVar associated with the variation, per allele. Click on the RCV accession (i.e. RCV000001615.2) or Allele ID (i.e. 12274) to access full ClinVar report.

Allele: G (allele ID: 30567 )
ClinVar Accession Disease Names Clinical Significance
Allele: T (allele ID: 30186 )
ClinVar Accession Disease Names Clinical Significance
RCV000641434.1 ERYTHROCYTOSIS 6 Pathogenic

Frequency tab displays a table of the reference and alternate allele frequencies reported by various studies and populations. Table lines, where Population="Global" refer to the entire study population, whereas lines, where Group="Sub", refer to a study-specific population subgroupings (i.e. AFR, CAU, etc.), if available. Frequency for the alternate allele (Alt Allele) is a ratio of samples observed-to-total, where the numerator (observed samples) is the number of chromosomes in the study with the minor allele present (found in "Sample size", where Group="Sub"), and the denominator (total samples) is the total number of all chromosomes in the study for the variant (found in "Sample size", where Group="Study-wide" and Population="Global").


Aliases tab displays HGVS names representing the variant placements and allele changes on genomic, transcript and protein sequences, per allele. HGVS name is an expression for reporting sequence accession and version, sequence type, position, and allele change. The column "Note" can have two values: "diff" means that there is a difference between the reference allele (variation interval) at the placement reported in HGVS name and the reference alleles reported in other HGVS names, and "rev" means that the sequence of this variation interval at the placement reported in HGVS name is in reverse orientation to the sequence(s) of this variation in other HGVS names not labeled as "rev".

Placement C= G T Note
GRCh38.p7 chr 11 NC_000011.10:g.52...






GRCh37.p13 chr 11 NC_000011.9:g.524...






HBB region RefSeqGene NG_000007.3:g.709...






HBB transcript NM_000518.4:c.269G= NM_000518.4:c.269G>C NM_000518.4:c.269G>A
hemoglobin subunit beta NP_000509.1:p.Ser90= NP_000509.1:p.Ser...





Submissions tab displays variations originally submitted to dbSNP, now supporting this RefSNP cluster (rs). We display Submitter handle, Submission identifier, Date and Build number, when the submission appeared for the first time. Direct submissions to dbSNP have Submission ID in the form of an ss-prefixed number (ss#). Other supporting variations are listed in the table without ss#.

6 SubSNP, 3 ClinVar submissions
No Submitter Submission ID Date (Build)
1 MILLER_NIDDK ss49850831 Mar 13, 2006 (126)
2 MILLER_NIDDK ss49850832 Mar 13, 2006 (126)
3 HBVAR ss79089085 Oct 02, 2012 (137)
4 HBVAR ss79089087 Oct 02, 2012 (137)
5 OMIM-CURATED-RECORDS ss263198819 Nov 08, 2010 (133)
6 OMIM-CURATED-RECORDS ss263199053 Nov 08, 2010 (133)
7 ClinVar RCV000016310.3 Jul 20, 2018 (151)
8 ClinVar RCV000016793.2 Jul 20, 2018 (151)
9 ClinVar RCV000641434.1 Jul 20, 2018 (151)

History tab displays RefSNPs (Associated ID) from previous builds (Build) that now support the current RefSNP, and the dates, when the history was updated for each Associated ID (History Updated).

Added to this RefSNP Cluster:
Submission ids Observation SPDI Canonical SPDI Source RSIDs
ss79089085, ss79089087, ss263198819, ss263199053 NC_000011.10:5226622:C= NC_000011.10:5226622:C= (self)
ss49850831, ss49850832 NT_009237.18:5187852:C= NC_000011.10:5226622:C= (self)
RCV000016793.2, ss79089087, ss263199053 NC_000011.10:5226622:C>G NC_000011.10:5226622:C>G (self)
ss49850832 NT_009237.18:5187852:C>G NC_000011.10:5226622:C>G (self)
RCV000016310.3, RCV000641434.1, ss79089085, ss263198819 NC_000011.10:5226622:C>T NC_000011.10:5226622:C>T (self)
ss49850831 NT_009237.18:5187852:C>T NC_000011.10:5226622:C>T (self)

Publications tab displays PubMed articles citing the variation as a listing of PMID, Title, Author, Year, Journal, ordered by Year, descending.

3 citations for rs33917628
PMID Title Author Year Journal
27132 Hemoglobin Creteil: oxygen transport by erythrocytes. In-vitro and in-vivo studies in a high oxygen-affinity mutant hemoglobin. Poyart C et al. 1978 Annals of internal medicine
6790544 The structure of hemoglobin Creteil (beta 89 Ser replaced by Asn) is similar to that of abnormal human hemoglobins having sequence changes at Tyr 145 beta. Arnone A et al. 1981 The Journal of biological chemistry
8241293 Hb Villaverde [beta 89 (F5) Ser-->Thr]: the structural modification of an intrasubunit contact is responsible for a high oxygen affinity. Wajcman H et al. 1993 Biochimica et biophysica acta

Genomic regions, transcripts, and products
Top Help

NCBI Graphical Sequence Viewer display of the genomic region, transcripts and protein products for the reported RefSNP (rs).
Use the zoom option to view the nucleotides around the RefSNP and find other neighboring RefSNPs.
Visit Sequence Viewer for help with navigating inside the display and modifying the selection of displayed data tracks.

Software version is: 0.1.4.post833+d3ba21e