SMAP1

Chr 6

small ArfGAP 1

Also known as: SMAP-1

The protein encoded by this gene is similar to the mouse stromal membrane-associated protein-1. This similarity suggests that this human gene product is also a type II membrane glycoprotein involved in the erythropoietic stimulatory activity of stromal cells. Alternate splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

OMIMResearchGenerating clinical summary…

Clinical highlights

Interpreting a novel variant
This gene is strongly intolerant of loss-of-function variation in the population, so LoF variants warrant close attention. No curated mechanism annotation is available — see the mechanism card for the computational prediction and its caveats.Based on population constraint only.
0
Active trials
4
Pubs (1 yr)
P/LP submissions
P/LP missense
0.26
LOEUF· LoF intol.
Mechanism

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint?
0.26LOEUF
pLI 0.994
Z-score 4.15
OE 0.08 (0.030.26)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint?
1.10Z-score
OE missense 0.80 (0.710.90)
193 obs / 240.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.08 (0.030.26)
00.351.4
Missense OE?0.80 (0.710.90)
00.61.4
Synonymous OE?1.06
01.21.6
LoF obs/exp: 2 / 23.8Missense obs/exp: 193 / 240.9Syn Z: -0.46

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

SMAP1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →